JPH06280102A - Adhesive interlining - Google Patents

Abstract

(57) [Summary] [Object] To provide an adhesive interlining having a reverse stain preventing layer of an adhesive resin. [Structure] A first resin layer 2 provided in a dot shape on a water-repellent finishing region on the surface of a base fabric 1, and a first resin attached to the first resin layer 2. Second with low melting point
Of resin 3. [Effect] Since the second resin layer 3 that contributes to the adhesion protrudes from the surface of the base cloth 1, the second resin layer 3 penetrates deeply into the material of the adhering partner such as the outer material and adheres to the base material 1 while maintaining a strong adherence (contact). ) Since the area can be substantially reduced, the texture of the fabric after bonding can be made soft.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive interlining, and more particularly to an adhesive interlining in which a base fabric having a lower layer for preventing reverse stain of an adhesive resin is further water repellent.

[0002]

BACKGROUND OF THE INVENTION Adhesive interlinings for clothes are used as core materials for surface materials of clothes. The adhesive interlining is made by applying hot-melt type thermoplastic resin to various shapes such as dots on one side of a base fabric such as non-woven fabric, knitted fabric or woven fabric. Both can be bonded and joined by heating and pressing with an iron or the like. However, when heat-bonded to the outer material using an adhesive interlining carrying only hot-melt type thermoplastic resin,
Since the thermoplastic resin passes through the interlining base cloth and exudes to the opposite surface (reverse stain), the size of the dots of the thermoplastic resin layer between the base cloth and the dot-shaped thermoplastic resin layer The dot-like lower layer corresponding to the above is provided. That is, by increasing the thermoplastic flow characteristics of the thermoplastic resin of the upper layer as compared with the resin of the lower layer, when heated and pressed to bond the adhesive interlining and the outer material, the thermoplastic resin of the upper layer is Even when the resin moves to the side, since the resin in the lower layer has low fluidity, it is difficult to move to the base cloth side of the interlining, and reverse stain is prevented. Further, by providing the lower layer, the thermoplastic resin layer can be distributed on the base fabric in a desired shape or arrangement, and further,
Since the thermoplastic resin is effectively used for adhesion to the surface material, the adhesive strength can be improved without increasing the amount of resin. These techniques are described, for example, in German Patent Publication No. 2
No. 460855, Japanese Patent Publication No. 46-20869,
It is described in JP-B-52-4671 and JP-B-57-58467.

[0003]

However, in the above-mentioned conventional technique, the reverse stain preventing layer is formed by printing the lower layer forming resin on the base fabric, and therefore, even if the thermoplastic resin layer is placed thereon. The whole tends to be flat or flat. Therefore, in order to ensure sufficient adhesion to the outer material, it is necessary to increase the contact area, and as a result, the texture tends to be hard. Furthermore, since the thermoplastic resin layer is planar, it is difficult for the thermoplastic resin to penetrate deeply into the inside of the surface material when it comes into contact with the surface material, and especially when it adheres to the uneven surface material, the adhesive force is insufficient. There was a drawback. Therefore, it is an object of the present invention to provide an adhesive interlining in which a thermoplastic resin layer is provided on a base cloth by a simple means.

[0004]

According to the present invention, the above object is to provide a first resin layer provided in a dot shape on a water-repellent surface-treated region of a surface of a base cloth, and a first resin layer on the first resin layer. Can be achieved by an adhesive interlining material having a second resin having a lower melting point than the first resin adhered to the.

The base fabric used in the present invention is not different from the conventional base fabric and is a non-woven fabric, a knitted fabric, a woven fabric or a composite fabric thereof. As the non-woven fabric, a fiber-bonded non-woven fabric,
Adhesive bonded nonwovens or hydroentangled nonwovens are particularly suitable. Further, a non-woven fabric which is a composite of filaments, nets, knits or fabrics can also be used.

The base fabric used in the present invention has a water-repellent processed region on its surface. The water repellent treatment area may be provided on only one part of the one side surface (or both side surfaces) of the base cloth, or may be provided on the entire one side surface (or both side surfaces) of the base cloth. It may be water processed. At least a region where the first resin layer described later is provided in a dot shape (preferably,
It is necessary to set a region (at least slightly wider than that) as the water repellent processed region. The water repellent treatment itself is
It is possible to directly use the method that is usually carried out for a non-woven fabric, a knitted fabric, a woven fabric, or a composite fabric thereof. For example, it can be carried out by impregnating, coating or printing a silicone resin or a fluorine resin in the form of a liquid such as an emulsion. When impregnated, the entire base fabric is treated to be water repellent, and when coated, a water repellent treated region can be provided on the entire one side surface or the entire both side surfaces. The water-repellent finishing region can be provided only on the part.
The method of impregnation is convenient.

The silicone resin and the fluorine resin which can be used for the water repellent treatment are not limited,
Examples thereof include dimethylpolysiloxane, methylhydrogenpolysiloxane, and perfluoroalkyl group-containing polymers.

The water repellent base fabric used in the present invention preferably has a water repellency (JIS L1079 water repellency A method) of 70 or more, preferably in the range of 70 to 90, and the water repellency is lower than 70. Since it is difficult to raise the first resin layer by surface tension, the effect of the present invention can not be expected so much, and when the water repellency exceeds 90, the surface tension acts too much and the contact area between the base fabric and the first resin is large. Is reduced, and peeling easily occurs at this portion.

In the present invention, the above-mentioned "first resin" is
It is a resin that forms the lower layer provided on the water-repellent surface-treated region of the base cloth, and is not different from the lower layer-forming resin used in the conventional method. That is, the “second
As long as it has a smaller heat fluidity than the “resin”, an acrylic resin or a urethane resin is usually used, and a self-crosslinking type is particularly preferable. Similar to the conventional method, these resins are made into a paste form in the form of, for example, an emulsion, and printed in dot form on one side of the base fabric by a roll printer or the like. Here, the dot shape is a pattern formed from a large number of discontinuous points or small areas on the surface of the base fabric, similarly to the conventional method, and the shape of each dot (for example, a circle, an ellipse, or a square). , Polygons such as rectangles and hexagons) and sizes, and the intervals and densities between them are not different from those of the conventional method. In general,
The individual size of the dot-shaped lower layer is about 0.03 to 1.2 mm
² , preferably 0.07 to 0.5 mm ² , and the total print area is about 6 to 40% of the base fabric, preferably 6 to 2
It accounts for 0%.

In the present invention, the above "second resin" is
It is a thermoplastic adhesive resin that is carried on the lower layer made of the first resin described above, and may be one that has a larger heat fluidity than the first resin, as in the conventional method. For example, polyester-based copolymers, polyamide-based copolymers, polyethylene, vinyl chloride-based copolymers, etc., whose components are adjusted to have a low melting point of 80 to 120 ° C., can be used.

In order to prepare the adhesive interlining of the present invention, a base cloth having a water repellent processed area in at least one portion is used, and a lower layer comprising the first resin is provided on the water repellent processed area. A method similar to the conventional method can be used except that the above-mentioned method is used. For example, the method described in the above-mentioned German Patent Publication No. 2460855 can be used.

A particularly preferred method for preparing the adhesive interlining of the present invention is the method disclosed by the present inventors in Japanese Patent Application No. 4-61440. The method will be described with reference to FIG. The base cloth 1 is sent to the printer 4, and the lower layer 2 made of the first resin is printed in a dot shape on one surface of the base cloth 1. Then, the base cloth is sent to the spray booth 5 with the printed surface facing downward. In the spray booth 5, the base cloth is raised from the horizontal to the elevation angle α.
Is 0 to 90 °, preferably about 30 to 60 °, and the second resin powder 3 is sprayed by the powder coating spray gun 6 toward the downward printing surface. At this time, the spraying speed of the powder 3 and the like can be easily adjusted appropriately. Next, air is blown from the surface of the base cloth opposite to the printed surface by the air nozzle 7 to remove excess powder attached to the base cloth portion other than the lower layer. In addition, for removing the powder, a means such as vibration, suction, or air blowing from the surface may be used together, if necessary. Then, the base fabric is sent to the dryer 8 to dry the lower layer and fuse the lower layer and the powder on the lower layer to obtain an adhesive interlining. In the present invention, in the above method, as the above-mentioned base cloth 1, a base cloth having a water-repellent processed region in at least one portion may be used. According to this method, the adhesive resin powder can be stably adhered only to the lower layer printed portion of the base cloth, so that no reverse stain occurs, the soft texture is maintained, and the adhesive interlining having sufficient adhesive strength. Can be manufactured.

In the adhesive interlining according to the present invention, the first resin layer is formed by printing or the like on the water-repellent surface-treated area of the base fabric surface, so that the resin layer rises due to the surface tension and becomes three-dimensional from the surface. It has a protruding shape. This state is schematically shown in FIG. FIG. 3 schematically shows a planar resin layer formed on a conventional base cloth having no water-repellent processed area. When the second resin 3 made of a thermoplastic resin powder is sprayed while the resin of the first resin layer 2 formed in this way has adhesiveness, the A structure in which the resin 3 of 2 is attached is obtained.

Further, when the second resin is sprinkled, the thermoplastic resin powder tends to concentrate on the first resin layer portion (printed portion). It is considered that this is because the base cloth is charged with + (plus) by the water repellent treatment, and the thermoplastic resin powder that is the second resin is also charged with + (plus). Therefore, the second resin that contributes to adhesion is concentrated in a small area.

[0015]

The present invention will be described in detail below with reference to examples, but these do not limit the scope of the present invention. Example 1 Nylon fiber 9 having a fineness of 1.5 denier and a fiber length of 38 mm
A calender roll (surface temperature 195 ° C.) consisting of a flat web and an engraving roll in which rectangular convex portions are evenly distributed, a fiber web consisting of 0% and 10% polyester fiber having a fineness of 1.5 denier and a fiber length of 38 mm. To obtain a point-seal non-woven fabric having a sealing area of 8% and a basis weight of 25 g / m ² . Next, this non-woven fabric was impregnated with an emulsion containing methyl hydrogen polysiloxane as a main component [trade name = Geranex S-3; manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.] and dried to obtain a base fabric having a water repellency of 70. . An adhesive resin layer was formed on the water-repellent-treated base fabric by using the same device as that shown in FIG. First, a dot-shaped print (70 dots / cm ² ) containing an acrylic resin as a main component was provided on one surface of the base fabric 1 by the roll printer 4. The amount of solids deposited on Print 2 was 5 g / m ² .
Next, the print surface is directed downwards to the spray booth 5, and a powder coating spray gun 6 is supplied from below to supply 50 g / min of copolyamide resin powder 3 (melting point 110 ° C.) 3 having a particle size of 80 to 150 μm. Blown in quantity. After that, when the excess powder was removed by the backwashing air nozzle 7, 8 g / m ² of powder adhered. Then, it was dried at 120 ° C. by a dryer 8 to obtain an adhesive interlining material. Bending values and shearing values were measured as values representing the adhesive strength and texture of the obtained adhesive interlining, and the results are shown in Table 1.
Each test was conducted by the following method.

(1) Adhesive strength A plain woven cloth made of yarns of polyester / cotton mixed at a ratio of 65/35 is laminated with an adhesive interlining on a water-repellent surface treated with a fluororesin, and then a roll press machine is used. By pressing for 10 seconds under the conditions of a temperature of 130 ° C. and a gauge pressure of 3 kg, a sample in which the surface material and the adhesive interlining material are bonded is prepared.
Then, this sample is cut into 5 cm × 10 cm to obtain a test piece. The obtained test piece is peeled by 180 degrees at a pulling speed of 10 cm / min by a tensile tester, and the strength at this time is taken as the adhesive strength (JIS L-1086 standard).

(2) Bending value (KESB value) The same sample as that used in the adhesive strength test (1) was used for 20 times.
A test piece is prepared by cutting into cm × 20 cm. This test piece is sandwiched between a fixed chuck and a moving chuck of a pure bending tester (manufactured by Kato Tech Co., Ltd.), and the moving chuck is moved to bend the test piece to a constant curvature, and the bending moment corresponding thereto is measured. The relationship between the curvature of the test piece and the bending moment is graphed, and the bending value (B value) is determined from the inclination. The bending value is represented by an average value obtained by measuring the longitudinal direction and the lateral direction of the test piece.

(3) Shear value (KESG value) The same test piece as that used in the bending value test (2) was prepared, and the test pieces were arranged at intervals of 5 cm so that the actual measurement size was 5 cm × 20 cm. The test piece is opened and fixed between chucks of a shear tester (manufactured by Kato Tech Co., Ltd.), and one of the chucks is moved to shift the test piece to a constant shear shear amount, and the shear load corresponding thereto is measured. The relationship between this shear amount and shear load is graphed, and the shear value (G
Value). The shear value is represented by the average value of the test pieces measured in the vertical and horizontal directions.

Example 2 The same point seal non-woven fabric as in Example 1 was used, but instead of the emulsion containing methylhydrogenpolysiloxane as the main component, an emulsion containing fluorine resin as the main component [trade name = Asahi Guard AG-710]. Asahi Glass Co., Ltd.
An adhesive interlining material was obtained in the same manner as in Example 1 except that a base fabric having a water repellency of 80 was used as the water repellent treated base fabric. Bending values and shearing values were measured as values representing the adhesive strength and texture of the obtained adhesive interlining, and the results are shown in Table 1.

Comparative Example An adhesive interlining was obtained in the same manner as in Example 1 except that the same point-sealing non-woven fabric as in Example 1 was used as a base fabric as it was without water-repellent treatment. Bending values and shearing values were measured as values representing the adhesive strength and texture of the obtained adhesive interlining, and the results are shown in Table 1.

[0021]

[Table 1] Measurement items Example 1 Example 2 Comparative example Adhesive strength (kg / 5cm width) 0.90 1.13 0.72 Bending value (gcm / cm) 0.222 0.216 0.241 Shear Value (gcm / degreecm) 4.12 3.77 4.51

As is clear from Table 1, Examples 1 and 2
The adhesive strength of the adhesive interlining material is higher than that of the comparative example in which the water repellent treatment is not performed. Moreover, since the bending value and the shearing value are smaller in Examples 1 and 2 than in Comparative Example, Example 1
It can be seen that the texture when the adhesive interlinings of Nos. 2 and 2 are bonded to the surface is softer than when the adhesive interlining of the comparative example is bonded to the surface.

[0023]

In the adhesive interlining of the present invention, since the second resin layer that contributes to the adhesion protrudes from the surface of the base cloth, it will penetrate deeply into the mating material to be adhered such as the outer material and adhere. Therefore, since the adhesion (contact) area can be substantially reduced while maintaining a strong adhesion, the texture of the cloth after adhesion can be made soft. In particular, in the case of adhering to a material having unevenness on the surface, the adhesive strength is greatly improved as compared with the conventional adhesive interlining. In addition, in the manufacturing process, the second resin can be efficiently attached onto the first resin layer. Further, no reverse stain occurs as in the conventional adhesive interlining.

[Brief description of drawings]

FIG. 1 is an explanatory view schematically showing an apparatus suitable for producing an adhesive interlining of the present invention.

FIG. 2 is a cross-sectional view schematically showing the first and second resin layers formed on the surface of the adhesive interlining of the present invention using the water repellent treated base cloth.

FIG. 3 is a cross-sectional view schematically showing first and second resin layers formed on the surface of a conventional adhesive interlining using a non-water-repellent treated base fabric.

[Explanation of symbols]

 1 ... Base cloth 2 ... Lower layer 3 ... Adhesive resin powder 4 ... Printer 5 ... Spray booth 6 ... Spray gun 7 ... Backwashing air nozzle

Claims (1)

[Claims] 1. A first resin layer provided in a dot shape on a water-repellent finishing region of a surface of a base fabric, and a melting point of the first resin adhered on the first resin layer. An adhesive interlining material having a low second resin.