CN107109784A - Cloth and silk and its manufacture method with concave-convex design - Google Patents

Abstract

The cloth and silk fine and with resistance to bend(ing) and wearability for imparting concave-convex design is provided.A kind of cloth and silk, it has polyurethane resin coating part at least a portion of the face side of cloth and silk, and has the concave-convex design by excipient in polyurethane resin coating part.The region that polyurethane resin coating part exists for the polyurethane resin after coating, polyurethane resin is infiltrated between the fiber at least surface element of cloth and silk, and cloth and silk surface is formed by polyurethane resin and fiber.The imparting depth of polyurethane resin in polyurethane resin coating part is 50~200 μm, and the filling rate of polyurethane resin is 15~45%, and the filling rate of the fiber of cloth and silk is 50~80%.

Description

Fabric with concave-convex design and its manufacturing method

technical field

The present invention relates to a fabric with a concavo-convex design and a method for its manufacture.

Background technique

Currently, in the fields of clothing, interior materials, and vehicle interior materials, products requiring high design have been developed, and products with concave-convex patterns on the surface have been developed. For example, in order to impart a concavo-convex design to the fabric, the surface of the fabric is embossed. However, the fibers constituting the fabric have elasticity. Therefore, there is a problem that even if heat pressing by embossing is performed, if the fine unevenness is designed, a sufficient shaping effect cannot be obtained due to the compression recovery force due to the elasticity of the fiber.

As a method of solving the above-mentioned problems, it is conceivable to reduce the compression recovery force due to the elasticity of the fibers by using fibers having a small fineness as the fibers constituting the fabric. However, in the above case, fine unevenness can be provided by embossing, but there is a problem that the unevenness does not have durability and the unevenness disappears due to abrasion.

In addition, as in Patent Document 1 and Patent Document 2, if a resin film (resin layer) is formed on the surface of the fabric, the shapeability of the resin is better than that of fibers, and thus fine unevenness can be imparted. However, there are problems that the surface of the film becomes tense like synthetic leather or plastic film; the soft touch and appearance of the fibers are damaged; and cracks are generated when bent.

prior art literature

patent documents

Patent Document 1: Japanese Patent Application Laid-Open No. 55-132784

Patent Document 2: Japanese Patent Laid-Open No. 2002-242085

Contents of the invention

The problem to be solved by the invention

It is an object of the present invention to provide a fine, flex-resistant, and abrasion-resistant fabric provided with a concavo-convex design.

solutions to problems

The first aspect of the present invention relates to a fabric having a polyurethane resin-coated portion on at least a part of the surface side of the fabric formed of fibers, and having a shaped concavo-convex design on the polyurethane resin-coated portion. The above-mentioned polyurethane resin coated portion is a region where the coated polyurethane resin exists, the polyurethane resin penetrates between fibers in at least the surface portion of the fabric, and the surface of the fabric is formed by the polyurethane resin and the fibers, and the polyurethane resin coated portion satisfies the following characteristics .

The depth of application of the polyurethane resin is 50 to 200 μm.

The filling rate of polyurethane resin is 15-45%.

The fiber filling rate of the fabric is 50 to 80%.

The second aspect of the present invention relates to a method for producing a fabric, which is the above method for producing a fabric with a concavo-convex design, wherein after coating polyurethane resin on at least a part of the surface side of the fabric, the polyurethane resin coated portion is embossed. Shaped concave-convex design.

The effect of the invention

According to the present invention, it is possible to provide a fabric with a concave-convex design in which the polyurethane resin suppresses the compression recovery force due to the elasticity of the fiber, is fine, and has bending resistance and abrasion resistance.

Description of drawings

Fig. 1 is a photograph showing the surface of a fabric of one example.

Fig. 2 is a cross-sectional photograph of a fabric of an example.

Fig. 3 is an enlarged cross-sectional photograph of a polyurethane resin-coated portion of a fabric according to an example.

FIG. 4 is a texture diagram of a fabric used in Example 5. FIG.

detailed description

The fabric having a concavo-convex design according to the present embodiment has a polyurethane resin-coated portion on at least a part of the surface side of the fabric, and has a shaped concavo-convex design on the polyurethane resin-coated portion. The polyurethane resin coated portion is a region where the applied polyurethane resin exists, the polyurethane resin penetrates between the fibers in at least the surface portion of the fabric, and the surface of the fabric is formed by the polyurethane resin and fibers, satisfying the following (1) to (3) feature.

(1) The depth of application of the polyurethane resin is 50 to 200 μm.

(2) The filling rate of the polyurethane resin is 15 to 45%.

(3) The fiber filling rate of the fabric is 50 to 80%.

By satisfying these features (1) to (3) and making the polyurethane resin exist between the fibers around the surface of the fabric, it is possible to suppress the compression recovery force due to the elasticity of the fibers, and to obtain bending resistance and abrasion resistance. The fine concave-convex design.

FIG. 1 is a photograph (25 times) of the surface of a fabric having a concavo-convex design in one example, and FIG. 2 is a cross-sectional photograph (100 times) of the same fabric. A fine concavo-convex design obtained by embossing, that is, an embossing pattern is formed on the surface of the fabric.

The cross-sectional photograph of the fabric in FIG. 3 is a photograph of a cross-section in the vertical direction of the polyurethane resin-coated portion of the fabric having a concavo-convex design according to an example, and is an example of the application state of the polyurethane resin on the polyurethane resin-coated portion. The polyurethane resin is not in the form of a film covering the surface of the fabric, but penetrates into at least the surface portion of the fabric to form a mass with the fibers, and exists between fibers around the surface of the fabric to consolidate the fibers. Therefore, the compression recovery force due to the elasticity of the fiber can be suppressed, and a fine concave-convex design having bending resistance and abrasion resistance can be obtained. In addition, in this embodiment, the urethane-resin-applied part means the part to which a urethane resin was applied, and is a region where the applied urethane resin exists.

The fabric to be treated used in this embodiment, that is, the fabric to be coated with the polyurethane resin is also referred to as a base fabric or a fabric. Such a fabric is not particularly limited, and examples thereof include known fabrics such as woven fabrics, knitted fabrics, and nonwoven fabrics. The weave of the woven fabric is not particularly limited, and examples include: plain weave, twill weave (twill weave), satin weave, variations of these three weaves, and special weaves such as pear skin weave, and combinations of these two types. The above mixed organization and so on. It does not specifically limit as a knitted fabric, For example, a tricot knitted fabric, a double-needle raschel knitted fabric, and a circular knitted fabric are mentioned.

The fiber raw material constituting the fabric in this embodiment is not particularly limited, and conventionally known natural fibers, regenerated fibers, semi-synthetic fibers, synthetic fibers, and the like can be used. These can be used individually by 1 type, or in combination of 2 or more types. Among them, from the viewpoint of durability, particularly mechanical strength, heat resistance, and light resistance, the fiber raw material is preferably synthetic fiber, more preferably polyester, and particularly preferably polyethylene terephthalate. Furthermore, it is preferable to use a flame-retardant fiber from a viewpoint of flame retardancy.

Pile can be formed on the surface of the fabric as the base fabric by known methods such as weaving structure and napping. The length of the pile when the fabric has pile is not particularly limited, but from the viewpoint of wear resistance, for example, in the case of pile products such as full-cut pile products and open-width products of double-needle raschel warp knitted fabrics In this case, the pile length is preferably 1600 μm or less. By being 1600 μm or less, it is possible to suppress the consolidation of the polyurethane resin on the pile surface in a layered form. Therefore, a load is applied only to the urethane resin coated portion at the time of abrasion, and deterioration of abrasion resistance can be prevented.

The fabric having a concavo-convex design according to the present embodiment (hereinafter also referred to as a fabric with a design) has a polyurethane resin coated portion on at least a part of the surface side of the fabric. The single-fiber fineness (hereinafter also referred to as single-fiber fineness) of the fibers constituting the fabric of the polyurethane resin-coated portion is mainly preferably a fiber of 1.5 dtex or less. When the single fiber fineness is 1.5 dtex or less, it is possible to prevent the voids between fibers from becoming large, and to improve the formability of the fine concave-convex shape obtained by embossing. The lower limit of the single fiber fineness is not particularly limited, and may be, for example, 0.1 dtex or more.

When the fabric as the base fabric is a woven fabric, the total fineness of 1 mm ³ per unit volume is preferably 2500 to 5800 dtex in the region where the uneven design is imparted. In addition, it is more preferably 3000 to 5800 dtex, and still more preferably 3500 to 5800 dtex. By being 2500 dtex or more, the voids between fibers can be reduced, and the formability of the fine unevenness obtained by embossing can be improved. Moreover, favorable weavability can be ensured by being 5800 dtex or less.

In addition, the total of fineness per unit volume ^1mm3 was calculated as follows. That is, from the product of the warp density (threads/25.4mm) and the warp fineness (warp fineness) (dtex) and 25.4 mm, the width direction 25.4 mm × length direction 25.4 mm × fabric is calculated with respect to the gray fabric length direction The sum of the deniers of the warp in the volume of thickness (mm). In this calculation, the length of the warp in a warp direction of 25.4 mm is 25.4 mm. Strictly speaking, the warp does not run straight but is bent at the interweaving part with the weft, but it is calculated as a straight line. The total of the fineness of the weft is also calculated in the same manner as that of the warp, and the sum of the total of the fineness of the warp and the total of the fineness of the weft is calculated. The quotient of the calculated value and the volume (width direction×longitudinal direction×fabric thickness) was calculated as a total of fineness per 1 mm ³ .

Specifically, it is calculated by the following formula.

Total of denier per unit volume ^1mm3

＝(Warp density×Warp fineness×25.4+Weft density×Weft fineness×25.4)÷(25.4×25.4×Cloth thickness(mm))

When the thread density differs from the actual density due to the case where there is thread slipping, the actual density is used for calculation. For example, if the doppelgänger is 1in3out (that is, an arrangement of 1 inlay and 3 doppelgängers), multiply the warp density by 1/4 to calculate.

When the fabric as the base fabric is a knitted fabric, the total fineness per unit volume of 1 mm ³ is preferably 1000 to 5800 dtex in the region where the uneven design is provided. Moreover, it is more preferable that it is 1200-5800 dtex, and it is still more preferable that it is 1500-5800 dtex. By being 1000 dtex or more, the voids between fibers can be reduced, and the formability of the fine concave-convex shape obtained by embossing can be improved. Moreover, favorable weavability can be ensured by being 5800 dtex or less.

In addition, in the case of knitted fabrics, the total fineness per unit volume of 1 mm ³ was calculated as follows. From the product of 2 times the loop density, the silk fineness, and 25.4 mm, the total fineness in the volume of the width direction (25.4 mm)×longitudinal direction (25.4 mm)×fabric thickness (mm) is calculated with respect to the fabric length direction. In the section perpendicular to the length direction of the gray fabric, two sections can be seen in one loop, so the density is doubled for calculation. In addition, in this calculation, the length which connects the cross sections of the loops in the width direction 25.4 mm is 25.4 mm. In addition, strictly speaking, the knitting yarn does not run straight but forms loops, so it is curved, but it is counted in a straight way. The quotient of the calculated value and the volume (width direction×longitudinal direction×fabric thickness) was calculated as a total of fineness per 1 mm ³ . In the case of multiple textures, among the filaments constituting each texture, the fineness of the filaments in the volume of the fabric width direction (25.4mm) x fabric length direction (25.4mm) x fabric thickness (mm) is calculated and totaled to calculate the total The quotient of the value and the volume, and find the total of the fineness per unit volume of 1 mm ³ .

Specifically, it is calculated by the following formula.

The total of fineness per unit volume ^1mm3 (in the case of tricot and circular knitted fabrics)

＝(Total fineness of each yarn ^*1 ×Coil density×2×25.4)÷(25.4×25.4×Fabric thickness (mm))

*1: In the case of tricot knitted fabric, it is the sum of the fineness of front, middle and back threads, and in the case of circular knitted fabric, it is the sum of the fineness of top yarn, tie yarn and bottom yarn total.

The total of the fineness per unit volume 1 ^mm3 (in the case of open-width two-needle raschel warp knitted fabric)

＝{(Total of the fineness of the yarns in each place+Total of the fineness of the pile yarns)×Coil density×2×25.4}÷(25.4×25.4×Fabric thickness (mm))

The total of fineness per unit volume ^1mm3 (in the case of non-open-width double-needle raschel warp knitted fabric)

＝{(Total of the fineness of the yarns in each part+Total of the fineness of the connecting yarns×2)×Coil density×2×25.4}÷(25.4×25.4×Fabric thickness (mm))

When the thread density is different from the real density due to the case where there is thread slipping, the real density is used for calculation. An example is shown below. In the non-open-width fabric of the double-needle raschel knitted fabric, for example, in the case where the runaway is 1in1out, the following formula is obtained.

Total of denier per unit volume ^1mm3

＝{(Total of the fineness of the yarns in each part+Total of the fineness of the connecting yarns×2×1/2)×Coil density×2×25.4}÷(25.4×25.4×Fabric thickness (mm))

The polyurethane resin used in this embodiment is not particularly limited, and examples thereof include polyurethane resins such as polyether-based, polyester-based, and polycarbonate-based resins. Among these, polyester-based polyurethane resins are preferably used from the viewpoint of texture, and polycarbonate-based polyurethane resins are preferably used from the viewpoint of durability, especially abrasion resistance.

The softening temperature of the polyurethane resin is preferably 100 to 200°C. When the softening temperature is 100° C. or higher, even when a vehicle interior material or the like is used under conditions such as leaving it at a high temperature for a long time, it is possible to make the resin less likely to be eluted. When the softening temperature is 200° C. or lower, the heating temperature of the embossing roll can be set relatively low in the shape-forming concavo-convex design, and it is possible to prevent the base fabric from becoming rough and hard at the portion where the polyurethane resin is not applied. In addition, the softening temperature was measured by the differential scanning thermal analysis method using the DSC thermal analysis machine.

The coating of the polyurethane resin may be performed on the entire fabric, or may be performed only around the portion where the fine uneven design is provided. The amount of polyurethane resin applied to the polyurethane resin coating portion varies depending on the structure of the fabric to be treated, such as density, fineness, etc., but is preferably about 1 to 200 g/m ² for the fabric. When it is 1 g/m ² or more, the fibers are sufficiently consolidated with each other, so that the abrasion resistance is improved, or the formability of the fine concave-convex shape obtained by embossing is improved. By being 200 g/m ² or less, hardening of the texture is suppressed. Here, the polyurethane resin permeates between the fibers in at least the surface portion (surface layer) of the fabric, and forms the surface portion of the fabric together with the fibers, instead of forming a surface of the polyurethane resin alone on the entire surface of the fabric as in grained synthetic leather. cortex. The applied amount of the polyurethane resin is a value obtained by converting the applied amount in the portion coated with the polyurethane resin into the applied amount per square meter, and is a value in terms of the mass of the solid content after drying.

The application depth of the polyurethane resin in the polyurethane resin coating part of this embodiment is the range of 50-200 micrometers. When the thickness is 50 μm or more, the fibers are sufficiently consolidated, so that the wear resistance is improved, or the formability of fine unevenness by embossing is improved. By being 200 μm or less, the texture is suppressed from becoming hard. Preferably it is 50-130 micrometers, More preferably, it is 50-100 micrometers.

The depth of application of the polyurethane resin refers to the depth from the surface of the fabric in the area where the polyurethane resin exists between the fibers of the fabric, and this area is hereinafter also referred to as the area of the depth of application of the polyurethane resin. Here, the depth of application of the polyurethane resin has the same meaning as the thickness of the polyurethane resin application portion. In FIG. 3 , the depth of application of the polyurethane resin is indicated by white arrows. In addition, the depth of application of a polyurethane resin was calculated|required as follows. Take a vertical cross-section of the polyurethane resin-coated part with a microscope, and measure the length in the vertical direction from the surface of the fabric to the lower end of the polyurethane resin infiltration of the part where the polyurethane resin consolidates the fibers together to form a block at any 10 places, and find out average.

As described above, the polyurethane resin may infiltrate between fibers in at least the surface portion of the fabric, or may infiltrate over the entire thickness of the fabric. However, from the viewpoint of texture, it is preferable that the polyurethane resin does not permeate through the entire thickness of the fabric, that is, permeates into a part of the thickness direction including the surface portion of the fabric. Specifically, the ratio of the depth of application of the polyurethane resin to the thickness of the designed fabric may be 3 to 30%, or may be 3 to 10%. Here, the thickness of the fabric with the design is not particularly limited, and may be, for example, 0.2 to 3.0 mm (that is, 200 to 3000 μm), or may be 0.3 to 2.8 mm.

The filling rate of the polyurethane resin in the polyurethane resin coating part of this embodiment is in the range of 15 to 45%. When it is 15% or more, the formability of an uneven|corrugated shape improves. By being 45% or less, bending resistance improves. Preferably it is 15-35%, More preferably, it is 20-35%.

It should be noted that the filling rate of the polyurethane resin in the polyurethane resin coating part is the ratio of the polyurethane resin in the depth area of the polyurethane resin (the portion where the polyurethane resin consolidates the fibers together to form a block), and is calculated as follows out. That is, it is obtained by the following formula from the filling rate and porosity of the fibers described later.

Filling rate of polyurethane resin (%) = 100-(fiber filling rate + porosity)

The fiber filling rate of the fabric in the urethane resin coated portion is in the range of 50 to 80%. By being 50% or more, the voids between the fibers can be reduced, the cohesion between the fibers can be improved, and the abrasion resistance can be improved. By being 80% or less, bending resistance can be improved. Preferably it is 55-80%, More preferably, it is 55-75%.

The filling rate of fibers in the urethane resin-applied portion is the ratio of fibers in the urethane resin application depth region (the portion where the urethane resin consolidates the fibers together to form a block), and is determined as follows. That is, the photo obtained by taking a vertical cross-section of the polyurethane resin coated part with a scanner reading microscope is used to measure the thickness of the yarn in the measurement area where the width of 100 μm is defined as the weft direction and the depth of the polyurethane resin is defined as the warp direction. The number (n) of cross-sections was used to obtain the filling rate of fibers from the following formula. In addition, the diameter R (micrometer) of a yarn is calculated|required by measuring the diameter of the warp direction and the weft direction of the cross-section of the yarn at arbitrary 5 places, and obtaining it as an average.

Fiber filling rate (%) = (78.5 × R ² × n) ÷ (100 × polyurethane resin imparted depth (μm))

In addition, the filling rate of the fiber in the polyurethane resin coating part is the average value of the filling rate of the fiber calculated|required at arbitrary 5 places.

The sum of the outer peripheral lengths of the cross-sections of fibers in the polyurethane resin-coated portion of this embodiment is preferably 1500 μm or more per unit area of 10000 μm ² , more preferably 1800 μm or more, and still more preferably 2700 μm or more. When it is 1500 μm or more, the adhesiveness between the polyurethane resin and the fiber is improved, the compression recovery force of the fiber can be suppressed, and the formability of the fine concave-convex shape obtained by embossing can be improved. This is considered to be because the larger the sum of the outer peripheral lengths, the larger the number of fibers (single fibers) with small single deniers, the smaller the pores between the fibers, and the easier the polyurethane resin and the fibers are consolidated. In addition, it is considered that when there are many fibers with a small single fineness, the surface area becomes larger relative to the total fineness, and therefore, the area covered by the polyurethane resin becomes larger, which facilitates consolidation. The upper limit of the sum of the outer peripheral lengths of the fiber cross-sections is not particularly limited, and may be, for example, 9000 μm or less, or may be 6000 μm or less.

In addition, the sum of the outer peripheral lengths of the cross-sections of fibers in the urethane resin coated portion was obtained as follows. That is, the photo obtained by taking a vertical cross-section of the polyurethane resin coated part with a scanner reading microscope is used to measure the thickness of the yarn in the measurement area where the width of 100 μm is defined as the weft direction and the depth of the polyurethane resin is defined as the warp direction. The number (n) of cross-sections was obtained from the sum of the outer peripheral lengths of the fiber cross-sections by the following formula. In addition, the diameter R (micrometer) of a yarn is calculated|required by measuring the diameter of the warp direction and the weft direction of the cross-section of the yarn at arbitrary 5 places, and obtaining it as an average.

The sum of the outer perimeter lengths of the fiber sections (μm) = (31400 x R x n) ÷ (100 x polyurethane resin imparted depth (μm))

In addition, the sum of the outer peripheral lengths of the fiber cross-sections in the polyurethane resin-applied part was made into the average value of the sum of the outer peripheral lengths of the fiber cross-sections calculated|required at arbitrary 5 places.

The porosity in the polyurethane resin coated portion is preferably 13% or less, more preferably 9% or less. When the porosity is 13% or less, it is easy to form the concave-convex shape obtained by embossing. The lower limit of the porosity is not particularly limited, and may be, for example, 0.1% or more, or 2% or more.

In addition, the porosity in the urethane resin coated part is the ratio of the void portion in the urethane resin application depth region (the part where the urethane resin consolidates the fibers together to form a block), and is determined as follows. That is, using a scanner reading microscope to take a photograph of a vertical cross-section of the polyurethane resin coated part, in the measurement area where the width of 100 μm is defined as the latitudinal direction and the depth area of the polyurethane resin is defined as the warp direction, the void portion By binarizing the other parts, the ratio of the void portion in the depth region of the polyurethane resin of the fabric is calculated. In addition, the porosity in the polyurethane resin coating part was made into the average value of the porosity calculated|required at arbitrary 5 places.

The number of fibers per 100 μm ² of cross-sectional area of the polyurethane resin in the polyurethane resin coating portion is preferably 1.5 or more, more preferably 2.0 or more. By being 1.5 or more, the number of fibers per urethane resin increases, so that the effect of the binder based on the urethane resin can be enhanced. Therefore, it is possible to improve the formability of the fine uneven shape obtained by embossing, and to improve the wear resistance. The upper limit of the number of fibers is not particularly limited, and may be, for example, 100 or less, 50 or less, or 20 or less.

The number of fibers per 100 μm ² of the polyurethane resin in the polyurethane resin-coated part was determined using a photograph obtained by taking a vertical cross-section of the polyurethane resin-coated part with the same microscope as the filling rate of the polyurethane resin. The number of fiber sections in the measurement area is counted. The area of the polyurethane resin was calculated as the product of the filling rate of the polyurethane resin and the area of the measurement region. From these values, the number of fibers per 100 μm ² of the polyurethane resin was calculated.

The concavo-convex design in this embodiment is preferably a fine concavo-convex design (fine concavo-convex design) having a concave shape with a width of 200 to 1500 μm and a maximum depth of 20 to 450 μm. In addition, as the concavo-convex design, the maximum pattern interval is preferably 10000 μm or less. As a preferred embodiment, for the concavo-convex design, the width of the concave portion is 200-1200 μm, the maximum value of the depth of the concave portion is 20-250 μm, and the maximum pattern interval is 5000 μm or less. As a more preferable embodiment, the width of the concave portion is 200 to 800 μm, the maximum value of the depth of the concave portion is 20 to 150 μm, and the maximum pattern interval is 2000 μm or less. By satisfying these ranges, it is possible to express fine concave-convex designs that cannot be obtained by embossing, for example, fine concave-convex designs such as the grain of natural leather.

In addition, the width and depth of the recessed part in the said uneven|corrugated design can be calculated|required by measuring the width and depth of a recessed part from the photograph obtained by taking the vertical cross-section of the polyurethane resin coating part with the microscope. Specifically, as shown in FIG. 2 , the width (W) of the concavo-convex design is obtained by measuring the distance from one end to the other end of any three concavities and calculating the average value. In addition, the depth (D) of the concave portion of the concavo-convex design is obtained as follows: when measuring the width of the concave portion as described above, measure the distance from the straight line connecting from one end to the other end of the concave portion to the deepest part of the concave portion. To obtain, obtain the maximum value for any three recesses. Then, for the pattern interval of the concavo-convex design, the distance between the apexes of the adjacent convex parts is measured based on the photograph obtained by taking the surface photograph of the polyurethane resin coated part with a microscope. the maximum value.

The cross-sectional shape in the vertical direction of the concavo-convex design is not particularly limited, but it is preferably a wave type that can express a thinner pattern. In addition, in the case of a wave type, the inclination angle of the straight line connecting the highest position of the convex part and the lowest position of the concave part is preferably 5 to 40 degrees among adjacent concavities and convexities. More preferably, the inclination angle is 5 to 30 degrees, and still more preferably 5 to 20 degrees.

In addition, the inclination angle of wave pattern design was measured as follows. From the photograph obtained by taking a vertical section of the polyurethane resin coated part with a microscope, the angle between the straight line connecting the highest position of the convex part and the lowest position of the concave part and the tangent line at the highest position of the convex part was measured to obtain it.

The fabric with uneven design according to this embodiment can be obtained by applying polyurethane resin to at least a part of the surface side of the fabric as a base fabric, and embossing the polyurethane resin coated portion to form the uneven design.

In the production method of the present embodiment, first, a treatment liquid containing a polyurethane resin is applied to at least a part of the surface side of the fabric. For example, the treatment liquid may be applied to the entire surface of the fabric. Alternatively, the treatment liquid may be applied to a part of the surface side of the fabric, and in this case, it may be applied in a pattern. The treatment liquid contains at least a polyurethane resin and a medium for dispersing it (for example, water), and may also contain additives such as coloring materials (dyes, pigments, metal powders) and thickeners as necessary.

The application method of the treatment liquid is not particularly limited, and examples thereof include screen printing, rotary printing, inkjet printing, and the like. In addition, when the fabric has unevenness, a gravure coater, comma coater, reverse coater, etc. can also be used.

Next, the polyurethane resin is dried and cured. Conditions are not particularly limited as long as the drying can be performed to such an extent that the medium does not remain. It can be appropriately set in consideration of the boiling point of the medium and production efficiency.

In this way, after the polyurethane resin is coated and dried on the surface of the fabric, the entire surface is embossed. Specifically, for example, the polyurethane resin on the surface of the fabric is softened and shaped by an embossing roll at a temperature of 100 to 160° C. and a pressure (linear pressure) of 490 to 1960 N/cm. A concavo-convex pattern opposite to a desired fine concavo-convex pattern is engraved on the surface of the emboss roll. The temperature of the embossing roll is set in consideration of the softening temperature of the polyurethane resin, the fiber material constituting the fabric, the required durability, and the like.

In order to make the texture soft, heat treatment may be performed on the shaped fabric. The heat treatment is preferably performed at 100 to 150° C. for 30 seconds to 3 minutes.

As described above, the fabric having the concavo-convex design of the present embodiment can be obtained. The polyurethane resin permeates at least between the fibers in the surface portion in the thickness direction, and forms the surface portion of the fabric together with the fibers.

The use of the fabric having a concavo-convex design of this embodiment is not particularly limited, and it can be used in various fields such as vehicle interior materials, interior materials, clothes, and bags, for example.

Example

Hereinafter, although an Example demonstrates in detail, this invention is not limited to these examples. In addition, the evaluation of fabric was based on the following method.

(1) Formative

Products embossed using emboss rolls A, B, and C having the following uneven shapes were visually confirmed, and evaluated based on the following evaluation criteria.

Embossing roll A: The width of the concave part is 800 μm, the maximum depth of the concave part is 150 μm, the pattern interval is 2000 μm, the concave-convex section shape in the vertical direction; wave type, inclination angle 5-20 degrees, leather crepe pattern

Embossing roll B: Width of concave part 1200μm, maximum depth of concave part 250μm, pattern interval 5000μm, concave-convex cross-sectional shape in the vertical direction; wave type, inclination angle 10-30 degrees, leather crepe pattern

Embossing roll C: The width of the concave part is 1500 μm, the maximum value of the depth of the concave part is 450 μm, the pattern interval is 10000 μm, the concave-convex cross-sectional shape in the vertical direction; trapezoidal, line pattern

(evaluation criteria)

1: All the concave and convex shapes of A, B, and C are clearly shaped.

2: The concave-convex shape of A is unclear, but the concave-convex shapes of B and C are clearly formed.

3: The concave-convex shape of A and B is unclear, but the concave-convex shape of C is clearly shaped.

4: All the concave and convex shapes of A, B, and C are unclear.

(2) Bending resistance

The test piece after the formability evaluation was cut into a width of 25 mm and a length of 150 mm, and then fixed to a Demesia bending tester (manufactured by Tester Sangyo Co., Ltd.). Bending 3000 times at 300 times per minute with a bending stroke of 57mm. The test piece after bending was observed, and it evaluated based on the following reference|standard.

(evaluation criteria)

1: No cracking occurs.

2: Cracks occurred.

(3) Abrasion resistance

After cutting the test piece after the formability evaluation into a width of 70mm and a length of 300mm, polyurethane foam with a width of 70mm, a length of 300mm and a thickness of 10mm was added to the back, and fixed to a flat abrasion tester T-TYPE (Daei Co., Ltd. Science Seiki Manufacturing Co., Ltd.). A load of 9.8 N was applied to a friction member covered with cotton cloth (cotton canvas), and the test piece was abraded. The friction element is reciprocated and worn 10,000 times at a speed of 60 reciprocations/min between 140mm on the surface of the test piece. The cotton canvas was exchanged every 2,500 reciprocating wears, and a total of 10,000 reciprocating wears were performed. The test piece after abrasion was observed, and it evaluated based on the following reference|standard.

(evaluation criteria)

1: There is no disappearance of unevenness.

2: Slight unevenness disappears.

3: Disappearance of unevenness is evident.

[Example 1]

Use 167dtex/288f polyethylene terephthalate false-twisted processed yarn as the warp yarn, use 167dtex/48f polyethylene terephthalate false-twisted processed yarn as the weft yarn, and float the warp yarn ( Japanese: 経系出し) 5 sheets of satin weave are woven to obtain gray cloth. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine. The obtained fabric had a density of warp yarns of 178 yarns/25.4 mm, a density of weft yarns of 61 yarns/25.4 mm, and a fineness per mm ³ of volume of 3928 dtex.

Next, a polyurethane resin "RYUDTE-W BINDER UF6025" (manufactured by DIC Corporation, softening temperature = 120° C.) solution (solid content: 28% by mass) was applied over the entire surface using a screen printer. The number of times of coating was set so that the coating amount of the polyurethane resin would be 30 g/m ² by mass after drying. After applying the polyurethane resin solution, it was dried in a 90°C dryer for 10 minutes. Next, using an embossing machine, embossing was performed at a roll temperature of 150° C., a roll pressure of 588 N/cm, and a cloth speed of 3 m/min. As the embossing rolls, the three types of rolls A to C described in the aforementioned evaluation item shaping property were used.

In the obtained fabric, the polyurethane resin penetrated between the fibers in the surface portion of the fabric, the polyurethane resin and the fibers formed the fabric surface, and the entire fabric surface was provided with a fine uneven design (fine embossed pattern) obtained by embossing. The polyurethane resin application depth in the polyurethane resin coated portion of this designed fabric is 98 μm, the fiber filling rate is 69.1%, the polyurethane resin filling rate is 26.4%, the porosity is 4.5 ^% , and the number of fibers per 100 μm of polyurethane resin is The number was 6.5, the length around the cross-section of the single fiber was 3863 μm, and the fabric thickness was 400 μm. Table 1 shows the evaluation results.

[Example 2]

Tricot warp knitting machine using 3 reeds, L1 (front yarn) uses 84dtex/96f polyethylene terephthalate false-twisted processed yarn to traverse the warp fabric with 3 needle beds (1-0/ 3-4), L2 (middle yarn) uses 84dtex/36f polyethylene terephthalate flame-retardant yarn to flat weave (1-0/1-2), L3 (rear yarn) uses 84dtex/36f The polyethylene terephthalate flame-retardant yarn traverses the suede structure (2-1/1-0) with a 3-needle needle bed, and the threading is respectively fully threaded to obtain a gray cloth. Next, dyeing was implemented at 130 degreeC for 60 minutes with the gray disperse dye using the dyeing machine. Next, using a card clothing raising machine equipped with 12 napping rollers and 12 counter-needle napping rollers, with the clothing roller torque of 2.5MPa and the cloth speed of 12m/min, the self-knitting end direction is alternately carried out. The fluffing and fluffing from the start direction of weaving are 13 times, and the full cutting fluffing is implemented. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine, and it was completed. The density of the obtained fabric was 71 loops/25.4 mm in stitches, 38 loops/25.4 mm in wales, and a fineness per 1 mm ³ of volume was 2310 dtex.

Next, a polyurethane resin "RYUDTE-W BINDER UF6025" (manufactured by DIC Corporation) solution (solid content: 28% by mass) was applied over the entire surface using a screen printer. The number of times of coating was set so that the coating amount of the polyurethane resin would be 30 g/m ² by mass after drying. After applying the polyurethane resin solution, it was dried in a 90°C dryer for 10 minutes. Next, using an embossing machine, embossing was performed at a roll temperature of 120° C., a roll pressure of 1470 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

In the obtained fabric, the polyurethane resin penetrated between the fibers in the surface portion of the fabric, the polyurethane resin and the fibers formed the fabric surface, and the entire fabric surface was given a fine uneven design by embossing. The polyurethane resin application depth of the polyurethane resin coating part of this designed fabric is 92 μm, the fiber filling rate is 66.2%, the polyurethane resin filling rate is 25.4%, the porosity is 8.4%, and the polyurethane resin per 100 ^μm2 fiber The number of fibers was 4.0, the length around the cross-section of the single fiber was 2934 μm, and the fabric thickness was 610 μm. Table 1 shows the evaluation results.

[Example 3]

Use 178dtex/24f polyethylene terephthalate false-twisted processed yarn as the warp yarn, use 167dtex/144f polyethylene terephthalate false-twisted processed yarn as the weft yarn, and use the warp yarn to float The 8 satin weaves and the 8 satin weaves with the weft yarns floating out were made into trim patterns at intervals of 10 mm, and were woven to obtain gray fabrics. Next, using a card clothing raising machine equipped with 12 napping rollers and 12 counter needle napping rollers, the self-weaving process is carried out alternately at a clothing roller torque of 2.5 MPa and a cloth speed of 12 m/min. The fluffing in the direction and the fluffing in the direction from the start of weaving were performed 13 times, and half-cut fluffing was performed. Next, heat-processing was performed at 150 degreeC for 1 minute using the heat-setting machine, and it completed. The obtained fabric had a warp density of 184 threads/25.4 mm, a weft thread density of 88 threads/25.4 mm, and a fineness per 1 mm ³ of volume of 3113 dtex.

Next, using a reverse coater, a solution of polyurethane resin "RYUDTE-W BINDER UF6025" (manufactured by DIC Corporation) (solid content 28 wt. %). The roll rotational speed conditions were set so that the polyurethane resin coating amount became 30 g/m ² in terms of mass after drying. After applying the polyurethane resin solution, it was dried in a 90°C dryer for 10 minutes. Next, using an embossing machine, embossing was performed at a roll temperature of 150° C., a roll pressure of 588 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

A fine uneven design obtained by embossing was imparted to the weft portion exposed on the fabric surface of the obtained product and coated with the resin. The polyurethane resin in the polyurethane resin coated portion had a depth of 66 μm and a fiber filling rate of 59.6%, polyurethane resin filling rate of 30.9%, porosity of 9.5%, the number of fibers per 100 μm ² of polyurethane resin was 2.4, and the length around the cross section of a single fiber was 2353 μm. The thickness of the designed fabric was 600 μm. Table 1 shows the evaluation results.

[Example 4]

Tricot warp knitting machine using 3 reeds, L1 (front yarn) uses 84dtex/72f polyethylene terephthalate false-twisted processed yarn to traverse the warp fabric with 4 needle beds (1-0/ 4-5), L2 (middle silk) uses 84dtex/36f polyethylene terephthalate regular silk with plain weave (1-0/1-2), L3 (back silk) uses 84dtex/36f The regular polyethylene terephthalate yarn is traversed through the pile tissue (2-1/1-0) with a 4-needle needle bed, and the threading is respectively full-threaded for weaving to obtain a gray cloth. Next, dyeing was implemented at 130 degreeC for 60 minutes with the gray disperse dye using the dyeing machine. Next, using a card clothing raising machine equipped with 12 napping rollers and 12 counter-needle napping rollers, with the clothing roller torque of 2.5MPa and the cloth speed of 12m/min, the self-knitting end direction is alternately carried out. The fluffing and fluffing from the start direction of weaving are 13 times, and the full cutting fluffing is implemented. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine, and it was completed. The density of the obtained fabric was 67 piles/25.4 mm in stitches, 28 piles/25.4 mm in wales, and a fineness per 1 mm ³ of volume was 2179 dtex.

Next, a polyurethane resin "RYUDTE-WBINDER UF6025" (manufactured by DIC Corporation) solution (solid content: 28% by mass) was coated on the entire surface at a cloth speed of 10 m/min using a knife coater. The shape and position of the scraper were set so that the coating amount of the polyurethane resin would be 30 g/m ² by mass after drying. After applying the polyurethane resin solution, it was dried for 1 minute with a 130° C. drier. Next, using an embossing machine, embossing was performed at a roll temperature of 120° C., a roll pressure of 1470 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

In the obtained fabric, the polyurethane resin penetrated between the fibers in the surface portion of the fabric, the polyurethane resin and the fibers formed the fabric surface, and the entire fabric surface was given a fine uneven design by embossing. The polyurethane resin application depth in the polyurethane resin coated portion of this designed fabric is 53 μm, the fiber filling rate is 50.5%, the polyurethane resin filling rate is 42.1%, the porosity is 7.4 ^% , and the number of fibers per 100 μm of polyurethane resin is The number was 1.5, the length around the cross-section of the single fiber was 1996 μm, and the fabric thickness was 610 μm. Table 1 shows the evaluation results.

[Example 5]

Use 26gauge double-knit circular knitting machine, use 110dtex/48f polyethylene terephthalate flame-retardant yarn as bottom yarn (3F, 6F), use 110dtex/36f as tie yarn (2F, 5F) The polyethylene terephthalate flame-retardant yarn, as the surface yarn (1F, 3F), uses 84dtex/94f polyethylene terephthalate false twist processed yarn, according to the organizational chart in Figure 4, the preparation Gray fabric of double-knit fabric. Next, dyeing was implemented at 130 degreeC for 60 minutes with the gray disperse dye using the dyeing machine. Then, using a card clothing raising machine equipped with 12 napping rollers and 12 counter-needle napping rollers, alternately carry out from the weaving end direction with a clothing roller torque of 2.5 MPa and a cloth speed of 12 m/min. Raising and raising from the weaving start direction were performed 13 times, and half-cut raising was performed. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine, and it was completed. The density of the obtained fabric was 73 piles/25.4 mm in stitches, 34 piles/25.4 mm in wales, and a fineness per 1 mm ³ of volume was 2912 dtex.

Next, a polyurethane resin "RYUDTE-W BINDER UF6025" (manufactured by DIC Corporation) solution (solid content: 28% by mass) was applied over the entire surface using a screen printer. The number of times of coating was set so that the coating amount of the polyurethane resin would be 30 g/m ² by mass after drying. After applying the polyurethane resin solution, it was dried in a 90°C dryer for 10 minutes. Next, using an embossing machine, embossing was performed at a roll temperature of 130° C., a roll pressure of 1470 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

In the obtained fabric, the polyurethane resin penetrated between the fibers in the surface portion of the fabric, the polyurethane resin and the fibers formed the fabric surface, and the entire fabric surface was given a fine uneven design by embossing. The polyurethane resin application depth in the polyurethane resin coated portion of this designed fabric is 84 μm, the fiber filling rate is 66.2%, the polyurethane resin filling rate is 24.8%, the porosity is 9.0 ^% , and the number of fibers per 100 μm of polyurethane resin is The number was 4.1, the length around the cross-section of the single fiber was 2924 μm, and the fabric thickness was 600 μm. Table 1 shows the evaluation results.

[Example 6]

Using a 22gauge double-needle Raschel warp knitting machine with 6 reeds, respectively, the 84dtex/36f polyethylene terephthalate false-twisted processed yarns used as ground yarns are fed into the reeds L1 and L6 with full Guide the thread in the way of threading, the 110dtex/94f polyethylene terephthalate false twist processed thread as the ground thread is guided in the reed L2 and L5 in a full threading manner, and the 84dtex/94f as the pile thread is used to guide the thread. The 216f polyethylene terephthalate false-twisted processed yarn is guided to the reeds L3 and L4 in a full-thread manner, and the gray fabric of the double-needle raschel warp knitted fabric is prepared according to the following structure.

Reed L1: 1-2/1-1/1-0/1-1

Reed L2: 1-0/1-1/1-2/1-1

Reed L3: 1-0/0-1

Reed L4: 1-0/0-1

Reed L5: 1-0/1-1/1-2/1-1

Reed L6: 1-2/1-1/1-0/1-1

After the fabric is cut in the middle, it is subjected to a pre-carding process. Next, dyeing was implemented at 130 degreeC for 60 minutes with the gray disperse dye using the dyeing machine. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine, and it was completed. The density of the obtained fabric was 53 loops/25.4 mm in stitches, 38 loops/25.4 mm in wales, and a fineness per 1 mm ³ of volume was 1259 dtex.

Next, a polyurethane resin "RYUDTE-W BINDER UF6025" (manufactured by DIC Corporation) solution (solid content: 28% by mass) was applied over the entire surface using a screen printer. The number of times of coating was set so that the coating amount of the polyurethane resin would be 30 g/m ² by mass after drying. After applying the polyurethane resin solution, it was dried in a 90°C dryer for 10 minutes. Next, using an embossing machine, embossing was performed at a roll temperature of 110° C., a roll pressure of 1960 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

In the obtained fabric, the polyurethane resin penetrated between the fibers in the surface portion of the fabric, the polyurethane resin and the fibers formed the fabric surface, and the entire fabric surface was given a fine uneven design by embossing. The polyurethane resin application depth of the polyurethane resin coated portion of this designed fabric is 96 μm, the fiber filling rate is 63.1%, the polyurethane resin filling rate is 27.9%, the porosity is 9.0 ^% , and the number of fibers per 100 μm of polyurethane resin is The number was 9.6, the length around the cross-section of the single fiber was 4609 μm, and the fabric thickness was 1200 μm. Table 1 shows the evaluation results.

[Example 7]

Using 22gauge and a double-needle Raschel warp knitting machine with 6 reeds, respectively, the polyethylene terephthalate false-twisted processing yarn of 167dtex/30f as the lining texture ground yarn is fed into the reeds L1 and L2 Guide the yarn in a full-thread way, guide the 33dtex/1f polyethylene terephthalate false-twisted processed yarn as the connecting yarn into the reed L3 in a full-threading way, and use the 330dtex/144f as the connecting yarn 220dtex/288f polyethylene terephthalate false-twisted processed yarn of 220dtex/288f used as fabric structure ground yarn Guide the yarn to the reed L5 in the way of full penetration, and guide the 110dtex/144f polyethylene terephthalate false twisted yarn to the reed L6 in the way of 1in3out, according to the following Weave, weave the gray fabric of double-needle raschel warp knit.

Reed L1: 1-0/0-0/2-3/3-3

Reed L2: 0-1/1-1/2-1/1-1

Reed L3: 0-1/0-1/1-0/1-0

Reed L4: 0-0/0-1/0-0/0-1/0-0/0-0/0-0/

0-0/0-0/0-0/0-0/0-0/0-0/0-0/

0-0/0-0/0-0/0-0/0-0/0-0

Reed L5: 0-0/0-1/1-1/1-0

Reed L6: 0-0/4-4/4-4/0-0/0-0/4-4/4-4/

0-0/0-0/8-8/8-8/0-0/0-0/8-8/

8-8

Next, dyeing was implemented at 130 degreeC for 60 minutes with the gray disperse dye using the dyeing machine. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine, and it was completed. The density of the obtained fabric was 43 piles/25.4 mm in stitches, 25 piles/25.4 mm in wales, and a fineness per 1 mm ³ of volume was 1771 dtex.

Next, a polyurethane resin "RYUDTE-W BINDER UF6025" (manufactured by DIC Corporation) solution (solid content: 28% by mass) was applied over the entire surface using a screen printer. The number of times of coating was set so that the coating amount of the polyurethane resin would be 30 g/m ² by mass after drying. After applying the polyurethane resin solution, it was dried in a 90°C dryer for 10 minutes. Next, using an embossing machine, embossing was performed at a roll temperature of 100° C., a roll pressure of 1764 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

In the obtained fabric, the polyurethane resin penetrated between the fibers in the surface portion of the fabric, the polyurethane resin and the fibers formed the fabric surface, and the entire fabric surface was given a fine uneven design by embossing. The polyurethane resin application depth in the polyurethane resin coated part of this designed fabric is 95 μm, the fiber filling rate is 70.1%, the polyurethane resin filling rate is 21.9%, the porosity is 8.0 ^% , and the root of the fiber in the polyurethane resin is 100 μm The number was 5.8, the length around the cross-section of the single fiber was 3329 μm, and the fabric thickness was 2500 μm. Table 1 shows the evaluation results.

[Comparative example 1]

As the warp, 333dtex/96f polyethylene terephthalate false-twisted processed yarn is used, and as the weft, 600dtex/192f polyethylene terephthalate false-twisted processed yarn is used. The 8 satin weave weaves that go out are weaved, and gray cloth is obtained. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine. The obtained fabric had a warp density of 78 threads/25.4 mm, a weft thread density of 36 threads/25.4 mm, and a fineness per 1 mm ³ of volume of 2341 dtex.

Next, a polyurethane resin "RYUDTE-W BINDER UF6025" (manufactured by DIC Corporation) solution (solid content: 28% by mass) was applied over the entire surface using a screen printer. The number of times of coating was set so that the coating amount of the polyurethane resin would be 30 g/m ² by mass after drying. After applying the polyurethane resin solution, it was dried in a 90°C dryer for 10 minutes. Next, using an embossing machine, embossing was performed at a roll temperature of 150° C., a roll pressure of 588 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

The polyurethane resin imparted depth of the obtained product was 37 μm, the fiber filling rate was 64.9%, the polyurethane resin filling rate was 20.1%, the porosity was 15.0%, the number of fibers per 100 μm of the polyurethane resin was 1.3, and the area around the cross ^- section of the single fiber was The length is 1480 μm. Table 1 shows the evaluation results.

[Comparative example 2]

Tricot knitting machine using 2 reeds, L1 (front yarn) uses 55dtex/24f polyethylene terephthalate false-twisted processed yarn with 2 needle beds to traverse the warp structure (1-0 /4-5), L2 (rear yarn) use 33dtex/12f polyethylene terephthalate false-twisted processed yarn to warp plain weave (1-0/1-2), and thread them in a full way Weaving is carried out to obtain gray cloth. Next, dyeing was implemented at 130 degreeC for 60 minutes with the gray disperse dye using the dyeing machine. Next, using a card clothing raising machine equipped with 12 napping rollers and 12 counter needle napping rollers, the napping from the weaving end direction and the weaving starting direction are alternately performed 13 times, and half-cutting is performed. fluff. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine, and it was completed. The density of the obtained fabric was 66 loops/25.4 mm in stitches, 36 loops/25.4 mm in wales, and a fineness per 1 mm ³ of volume was 915 dtex.

Next, a polyurethane resin "RYUDTE-W BINDER UF6025" (manufactured by DIC Corporation) solution (solid content: 28% by mass) was applied over the entire surface using a screen printer. After applying the polyurethane resin, it was dried for 10 minutes with a 90° C. drier. The coating amount of the polyurethane resin was about 30 g/m ² by mass after drying. Next, using an embossing machine, embossing was performed at a roll temperature of 120° C., a roll pressure of 1470 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

The polyurethane resin imparted depth of the obtained product was 27 μm, the fiber filling rate was 14.6%, the polyurethane resin filling rate was 62.0%, the porosity was 23.4%, the number of fibers per 100 μm of the polyurethane resin was 0.1, and the area around the cross ^- section of the single fiber was The length is 409 μm. Table 1 shows the evaluation results.

[Comparative example 3]

As the warp, 167dtex/288f polyethylene terephthalate false-twisted processed yarn is used, and as the weft, 167dtex/288f polyethylene terephthalate false-twisted processed yarn is used. 5 sheets of satin weaves that go out are weaved to obtain gray cloth. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine. The obtained fabric had a warp density of 178 threads/25.4 mm, a weft thread density of 65 threads/25.4 mm, and a fineness per 1 mm ³ of volume of 4204 dtex.

Next, a polyurethane resin "RYUDTE-W BINDER UF6025" (manufactured by DIC Corporation) solution (solid content: 28% by mass) was applied over the entire surface using a screen printer. The number of times of coating was set so that the coating amount of the polyurethane resin would be 60 g/m ² by mass after drying. After applying the polyurethane resin solution, it was dried in a 90°C dryer for 10 minutes. The fibers of the obtained fabric were not exposed on the surface, and no polyurethane resin layer was formed. Next, using an embossing machine, embossing was performed at a roll temperature of 150° C., a roll pressure of 588 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

The polyurethane resin imparted depth of the obtained product was 35 μm, the fiber filling rate was 70.4%, the polyurethane resin filling rate was 23.6%, the porosity was 6.0%, the number of fibers per 100 μm of the polyurethane resin was 7.4, and the area around the cross ^- section of the single fiber was The length is 3931 μm. The polyurethane resin becomes filmy. Table 1 shows the evaluation results.

[Comparative example 4]

A product was obtained in the same manner as in Comparative Example 1 except that the number of times of coating was changed so that the coating amount of the polyurethane resin became 15 g/m ² in terms of mass after drying. The polyurethane resin imparted depth of the obtained product was 40 μm, the fiber filling rate was 64.9%, the polyurethane resin filling rate was 9.5%, the porosity was 25.6%, the number of fibers per 100 μm of the polyurethane resin was 2.8, and the area around the cross ^- section of the single fiber was The length is 1480 μm. Table 1 shows the evaluation results.

[Comparative Example 5]

As the warp, 122dtex/444f polyethylene terephthalate sub-filament (Japanese: 切繊纳) is used, and as the weft, 244dtex/888f polyethylene terephthalate sub-filament is used , Weave with 5 pieces of satin weave that the warp thread floats out, obtain gray cloth. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine. The obtained fabric had a density of warp yarns of 232 yarns/25.4 mm, a density of weft yarns of 110 yarns/25.4 mm, and a fineness per mm ³ of volume of 5713 dtex.

Next, a polyurethane resin "RYUDTE-W BINDER UF6025" (manufactured by DIC Corporation) solution (solid content: 28% by mass) was applied to the entire surface by screen printing. The number of times of coating was set so that the coating amount of the polyurethane resin would be 60 g/m ² by mass after drying. After applying the polyurethane resin solution, it was dried in a 90°C dryer for 10 minutes. Next, using an embossing machine, embossing was performed at a roll temperature of 150° C., a roll pressure of 588 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

The polyurethane resin imparted depth of the obtained product was 42 μm, the fiber filling rate was 86.2%, the polyurethane resin filling rate was 10.0%, the porosity was 3.8%, the number of fibers per 100 μm of the polyurethane resin was 48.2, and the area around the cross ^- section of the single fiber was The length is 7215 μm. In addition, the urethane resin becomes filmy. Table 1 shows the evaluation results.

[Comparative Example 6]

As the warp, 333dtex/96f polyethylene terephthalate false-twisted processed yarn is used, and as the weft, 600dtex/192f polyethylene terephthalate false-twisted processed yarn is used. The 5 sheets of satin weave weave that go out are weaved, and gray cloth is obtained. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine. The obtained fabric had a warp density of 78 threads/25.4 mm, a weft thread density of 36 threads/25.4 mm, and a fineness per 1 mm ³ of volume of 2341 dtex.

Next, a polyurethane resin "RYUDTE-W BINDER UF6025" (manufactured by DIC Corporation) solution (solid content: 28% by mass) was applied over the entire surface using a screen printer. The number of times of coating was set so that the coating amount of the polyurethane resin would be 30 g/m ² by mass after drying. After applying the polyurethane resin solution, it was dried in a 90°C dryer for 10 minutes. Next, using an embossing machine, embossing was performed at a roll temperature of 160° C., a roll pressure of 490 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

The polyurethane resin imparted depth of the obtained product was 130 μm, the fiber filling rate was 72.2%, the polyurethane resin filling rate was 12.4%, the porosity was 15.4%, the number of fibers per 100 μm of the polyurethane resin was 2.4, and the area around the cross ^- section of the single fiber was The length is 1647 μm. Table 1 shows the evaluation results.

[Comparative Example 7]

The woven fabric heat-treated by the heat-setting machine of Comparative Example 6 was used. For the back side of the woven fabric (weft floating side), utilize a card clothing raising machine equipped with 12 napping rollers and 12 counter needle napping rollers, with a clothing roller torque of 2.5MPa, cloth At a speed of 12 m/min, fluffing in the direction from the end of weaving and fluffing in the direction from the start of weaving were alternately performed 13 times, and half-cut fluffing was implemented. Next, heat treatment was performed at 190° C. for 1 minute using a heat setting machine, and it was completed.

Next, a polyurethane resin "RYUDTE-W BINDERUF6025" (manufactured by DIC Corporation) solution (solid content: 28% by mass) was applied to the entire raised surface using a screen printer. The number of times of coating was set so that the coating amount of the polyurethane resin would be 30 g/m ² by mass after drying. After applying the polyurethane resin solution, it was dried in a 90°C dryer for 10 minutes. Next, using an embossing machine, embossing was performed at a roll temperature of 160° C., a roll pressure of 490 N/cm, and a cloth speed of 3 m/min. As the rolls, the three types of rolls A to C described above were used.

The polyurethane resin imparted depth of the obtained product was 158 μm, the fiber filling rate was 40.0%, the polyurethane resin filling rate was 20.7%, the porosity was 40.3%, the number of fibers per 100 μm of the polyurethane resin was 0.8, and the area around the cross ^- section of the single fiber was The length is 888 μm. Table 1 shows the evaluation results.

[Comparative Example 8]

A product was obtained in the same manner as in Comparative Example 7 except that the coating amount of the polyurethane resin was 50 g/m ² in terms of mass after drying, and the embossing conditions were set at a roll temperature of 130°C. The polyurethane resin imparted depth of the obtained product was 161 μm, the fiber filling rate was 42.1%, the polyurethane resin filling rate was 12.0%, the porosity was 45.9%, the number of fibers per 100 μm of the polyurethane resin was 1.4, and the area around the cross ^- section of the single fiber was The length is 959 μm. Table 1 shows the evaluation results.

[Comparative Example 9]

A product was obtained in the same manner as in Comparative Example 7 except that the coating amount of the polyurethane resin was 10 g/m ² in terms of mass after drying, and the embossing conditions were set at a roll temperature of 130°C. The polyurethane resin imparted depth of the obtained product was 31 μm, the fiber filling rate was 42.8%, the polyurethane resin filling rate was 25.7%, the porosity was 30.0%, the number of fibers per 100 μm of the polyurethane resin was 0.7, and the area around the cross ^- section of the single fiber was The length is 977 μm. Table 1 shows the evaluation results.

The products obtained in Examples 1 to 7 were all excellent in the formability of the concavo-convex design, bending resistance, and abrasion resistance. On the other hand, the products obtained in Comparative Examples 1, 2, 4, 8, and 9 were poor in evaluation of shapeability and abrasion resistance. The products obtained in Comparative Examples 3 and 5 were poorly evaluated in bending resistance. The evaluation of the formability of the product obtained in Comparative Example 6 was poor. The evaluation of the wear resistance of the product obtained in Comparative Example 7 was poor.

[Table 1]

[Table 2]

[table 3]

Claims (10)

1. A fabric having a polyurethane resin-coated portion on at least a part of the surface side of the fabric formed of fibers, and having a shaped concavo-convex design on the polyurethane resin-coated portion, The urethane resin coated portion is an area where the applied urethane resin exists, the urethane resin permeates between fibers in at least the surface portion of the fabric, and the surface of the fabric is formed by the urethane resin and the fibers, In the polyurethane resin coating part, the depth of application of the polyurethane resin is 50-200 μm, the filling rate of the polyurethane resin is 15-45%, and the filling rate of the fiber is 50-80%. 2. The fabric according to claim 1, wherein the porosity in the polyurethane resin-coated portion is 13% or less. 3. The fabric according to claim 1 or 2, wherein the sum of outer peripheral lengths of fiber cross-sections in the polyurethane resin-coated portion is 1500 μm or more per unit area of 10000 μm ² . 4. The fabric according to any one of claims 1 to 3, wherein the number of fibers having a unit cross-sectional area of 100 μm ² of the polyurethane resin in the polyurethane resin coating portion is 1.5 or more. 5. The fabric according to any one of claims 1 to 4, wherein in the polyurethane resin coated portion, the depth of application of the polyurethane resin is 50 to 100 μm, and the filling rate of the polyurethane resin is 20 to 35%, And the fiber filling rate is 55-75%. 6. The fabric according to any one of claims 1 to 5, wherein the ratio of the imparted depth of the polyurethane resin to the thickness of the fabric having the concavo-convex design is 3 to 30%. 7. The fabric according to any one of claims 1 to 6, wherein the width of the concave portion constituting the concavo-convex design is 200 to 1500 μm, and the maximum depth of the concave portion is 20 to 450 μm. 8. A method for producing a fabric, which is the method for producing a fabric according to any one of claims 1 to 7, wherein: After the polyurethane resin is coated on at least a part of the surface side of the fabric, a concave-convex design is formed on the polyurethane resin coated portion by embossing. 9. The method for producing a fabric according to claim 8, wherein the fabric to be coated with the polyurethane resin is a woven fabric having a fineness of ¹ mm per unit volume in a region where the uneven design is imparted. The total is 2500~5800dtex. 10. The method for producing a fabric according to claim 8, wherein the fabric to be coated with the polyurethane resin is a knitted fabric having a fineness of ¹ mm per unit volume in the region where the uneven design is imparted. The total is 1000~5800dtex.