JPH01256902A - Shoe and manufacture thereof - Google Patents

Abstract

PURPOSE:To obtain a product with various colorings and high coloring fastness by applying easily dyable primer resin with the preset degree of dyeing power to a dyestuff used to color a shoe to at least part of an injection-molded shoe. CONSTITUTION:Easily dryable primer resin with the degree of dyeing power of at least 30mg/g to a dyestuff coated on a shoe carapace, a shoe bottom periphery section, and sewing threads to color a shoe is made of polyester polyol, polyether polyol or the like, for example. The primer resin is selected as appropriate according to the coloring property of a shoe carapace raw material for use. The degree of dyeing power of the primer resin is at least 30mg/g, preferably 50mg/g. The resin with a large dyeing power is used when a deep color is desired in particular. The coating quantity of the primer resin is determined by the desired color density, but the resin quantity is within the range of 3-70g/m<2> in general. The adhesion strength in the injection molding is increased, the desired color tone can be dyed in a short time, and small-quantity and many-type products with clear and deep colors can be manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to injection molded shoes colored with dyes.

[Prior Art] Conventionally, shoes are made by cutting colored lace material, sewing or gluing the cut pieces, and sewing the lace part and the sole of the shoe together. Alternatively, shoes were made by forming soles on the laces using an injection molding method.

However, in recent years, there has been a demand for the production of shoes that can respond to changes in consumer preferences, such as the diversification of shoelace materials, the diversification of shoelace patterns, and the diversification of shoelace colors. As a means of responding to such market demands, the laces are made by cutting pieces of material used for shoe laces, or sewn or glued together, and are dyed in advance to the desired color. Japanese Unexamined Patent Publication No. 191584/1984 discloses that shoes can be made by combining the sole with the main sole.
JP-A-62-298301, JP-A-62-298
This method has been proposed in Japanese Patent Application Laid-open No. 302, Japanese Patent Application Laid-open No. 15903-1983, Japanese Patent Application Laid-open No. 2tQO2, 1982, and Japanese Patent Application Laid-open No. 21005-1983.

[Problems to be Solved by the Invention] Is it widely practiced to integrally mold shoe soles on conventional shoe laces using the injection method?If shoes made using the injection method are colored with dye, the laces will be in good condition. However, the injection-molded shoe sole, sole periphery, sewing thread, etc. are either not dyed or are dyed to the extent of contamination, resulting in a poor product appearance. Furthermore, dyes used are specific depending on the material used to make shoes, and it is difficult to dye manufactured shoes because it is not possible to obtain a product with high color fastness, or only multicolor dyeing, partial dyeing, or shaded dyeing is possible. There was something strange.

The present invention is to obtain well-colored shoes by coloring shoes whose soles are integrally molded into the laces of the shoes by an injection method with dyes.

Furthermore, it is a product that can be dyed in a variety of ways, such as multicolor dyeing, partial dyeing, and dyeing with an agricultural tint, and has a high color fastness.
Our goal is to provide products with deep colors.

[Means for Solving the Problems] The present invention provides shoes in which at least a portion of an injection molded shoe is provided with an easily dyeable primer resin having a dyeing amount of at least 30 mg/g to the dye used for dyeing the shoes. .

In addition, the present invention provides an easily dyeable primer resin having a dyeing amount of at least 30 mg/g with respect to the dye used for dyeing shoes.
This method is applied to a part or the entire surface of the shoe cover before cutting the material for the shoe cover, or during the process of cutting the cut pieces or making the shoe cover from the cut pieces, and then injecting the sole of the shoe into the made shoe cover. This is a shoe manufacturing method characterized by integrally molding the shoes and coloring the resulting shoes with dye.

Further, in the present invention, a shoe sole is integrally molded onto a shoe cover made using a material that can be colored with dye by an injection method, and at least the periphery of the sole of the obtained shoe is used for dyeing the shoe cover. This method of manufacturing shoes is characterized in that an easily dyeable primer resin having a dyeing amount of at least 30 mg/g is applied, and then the shoes are colored with a dye.

In the method for producing dyed shoes of the present invention, when it is desired to dye the sole of the shoe in the same way as the shoe sole, or when it is desired to emphasize the coloring of the shoe sole, it is possible to dye the shoe sole with the dye used for dyeing the shoe shoe. An easily dyed resin or an easily dyed resin composition in an amount of at least 30 a+g/g is used as a shoe sole forming resin and integrally molded by an indie dye method, and the obtained shoes are colored with a dye. In addition, if you want to color the sewing thread with dye to the same extent as the sewing thread, or if you want to emphasize the coloring of the sewing thread,
Coloring of shoes with dyes in which soles are integrally molded by injection method to a shoe cover sewn with sewing thread treated with an easily dyeable primer resin with a dyeing amount of at least 30 mg/g to the dye used for dyeing the shoe cover. This is a unique method of manufacturing shoes.

That is, the present invention uses fabrics woven and woven from natural fibers or chemical fibers, artificial leathers, synthetic leathers, or imitation leathers composed of a polymer mainly composed of an elastic polymer and a fiber sheet as materials for shoelaces. , using at least one type of sheet-like material made from natural leather, cut into pieces, and sewing, high-frequency bonding or adhesive bonding of the pieces to make pieces, or cutting into pieces. A shoe part is made by using a high-frequency processing method from the cut pieces, and a shoe sole is integrally molded onto this part by injection of a thermoplastic resin, a thermoplastic resin composition, or a reactive resin composition, and then the shoe is made. Dye the shoes with coloring dyes.

The dye used is selected depending on the type of shoe shoe material and the type of primer resin applied to the shoe.

For example, for fabrics, direct dyes, acid dyes, basic dyes,
Reactive dyes, disperse dyes, metal complex dyes, sulfur dyes, etc.
For artificial leather or synthetic leather, disperse dyes, acid dyes, basic dyes, metal complex dyes, etc. For natural leather, metal complex dyes, acid dyes, etc. For primer resins, acid dyes, metal complex dyes, disperse dyes, basic dyes, etc. Selected dyes are commonly used. The methods of dyeing shoes with the selected dye include, for example, immersion dyeing in a vat, a method of moving the object to be dyed such as dyeing with a drum-shaped dyeing machine, and a method of dyeing with a dyeing solution such as dyeing with an Overmyer dyeing machine. Dyeing is done using a dip dyeing method, such as a method that circulates water.

In the dyeing method, dyeing is carried out in a water bath or in a bath of water and an organic solvent, using auxiliary agents selected from leveling agents, slowing agents, dispersants, carriers, etc. as necessary. The dyeing machine and the object to be dyed are finished by soaping, washing, and drying, but it is also better to treat the object to be dyed with a reducing agent to remove some of the dye. For example, by partially applying an easily dyeable primer resin in a pattern,
Multicolored shoes can be obtained by removing the dye from the areas where the easy-to-dye brimer resin is not applied after dyeing. In addition, the dye coloring method for shoes to which the easily dyeable primer resin of the present invention has been applied allows dyed shoes with a good color tone to be obtained by coloring by a textile printing method.

In addition, for dyeing the shoes of the present invention, which is applied to the shoes, the periphery of the sole, the sewing thread, etc., the easily dyeable primer resin having a dyeing rate of at least 3Q+++g/g to the dye used is, for example, At least one type of polymer polyol selected from polymer diols and/or triols such as polyester polyols, polyether polyols, polylactone polyols, polyester polyether polyols, and polycarbonate polyols, aliphatic polyisocyanates, alicyclic polyisocyanates, At least one selected from polyisocyanates having an aromatic ring, etc.
Polyurethane or polyurethane prepolymer obtained by reacting various types of polyisocyanates and at least one type of low-molecular compound selected from aliphatic polyamines, alicyclic polyamines, hydrazine, hydrazides, and polyols as a chain extender or crosslinking agent. modified urethane primer resin consisting of polyurethane or polyurethane prepolymer into which easily dyeable groups such as vinylpyrrolidone, amino acids, polyamines, etc. or easily dyed polymers thereof have been introduced, polyester primer resin, polyamide primer resin. These include resins, acrylic primer resins made of acrylic acid ester copolymers, and polyisocyanates. Primer resins are appropriately selected and used depending on the dyeability of the material used to cover the shoes. For example, when dyeing shoes where the shoe cover is made of artificial leather composed of a polyurethane surface layer and the sole is made of ordinary polyurethane or vinyl resin, the periphery of the sole is coated with a polyether-based polyurethane primer. Alternatively, a urethane-based primer resin made of a reaction-curable urethane prepolymer made of polyester polyol, polyisocyanate, and polyamine is applied and dyed with a metal complex dye. In addition, when dyeing a shoe made of a polyester fiber napped fibrous sheet as a shoe cover and integrally molded with a polyurethane sole with a disperse dye, a polyester primer resin is applied to the periphery of the sole and dyed with a disperse dye. A modified polyurethane primer resin made by block copolymerization of polyamino acids is printed in a floral pattern on the surface of synthetic leather that has been finished with a vinyl resin paint containing a coloring agent. After the shoe sole is integrally molded using the injection method on the shoe sole obtained by sewing the cut pieces using resin-treated sewing thread, the surface of the synthetic leather (!!) is dyed with an acid dye of a different tone, and then Thorough soaping removes dye from areas where the brimer resin is not applied.

In addition, the dyeing amount of the easily dyeable primer resin is at least 30
g+g/g, preferably 50 mg/g. In particular, when a deep color is desired, a resin with a large dyeing amount is used. Application 1 of the easily dyeable primer resin is determined depending on the desired color density, but generally the amount of resin is in the range of 3 to 70 g/m''.

If the amount applied is too small, the dyeing effect cannot be expected. On the other hand, if the coating amount is too large, the dye will be dyed in a deep color, but the resin layer will become thicker and the bent portions will be more susceptible to bending fatigue, resulting in an unfavorable condition. In addition, easily dyeable brimer resin is a solution dissolved in a solvent, a dispersion liquid or a paste-like substance dispersed in a dispersant, and although the condition of the resin liquid is not particularly specified, a solvent or dispersion that does not impair the condition of the substrate to which the brimer resin is applied is used. use an agent. Furthermore, the easily dyeable brimer resin contains pigments, extender pigments,
It is also good to include a filler.

5. The dye primer resin liquid can be applied by roll coating or spray coating for large sheet materials, but for fragments, welts, made shoes, and sewing threads, spray coating or spray coating can be applied. The coating method can be applied.

Dyed shoes can be reshaped as necessary, brushed or ironed if the surface is raised, coated with gloss-adjusting resin if the surface is smooth, ironed, and finished with water repellent treatment. The product is manufactured by attaching accessories.

In the present invention, the characteristics of applying brimer resin are that it increases the adhesive strength during injection molding, allows dyeing to the desired color tone in a short time, and produces products with vivid and deep colors in small quantities and in large quantities. There are varieties that can be manufactured.

[Examples] Hereinafter, embodiments of the present invention will be explained using specific examples, but the present invention is not limited to these examples. Note that parts and percentages in the examples are by weight unless otherwise specified.

Example 1 A leather-like sheet formed by applying a polyurethane coating layer to the surface of a brushed woven fabric was cut and sewn. After attaching an insole to the resulting cover, a polyether-based polyurethane primer solution (for metal complex dyes) A dyeing amount of 297 mg/g) was applied to the entire shoe by a spray method, and a foamable polyurethane composition was formed using a reaction injection direct tooling method to form the sole, and then the above polyurethane primer solution was further applied to the side of the sole. After drying, it was dyed using the dip dyeing method under the following conditions.

Medium brown metal complex dye composition 1.5% owf leveling agent
1g #2 Bath Ratio: 1:50 Dyeing Temperature: 80°C Dyeing Time: After shaking and dyeing in a bath for 10 minutes, the product was soaped and washed with water, and dried with hot air on a wire mesh to make men's casual shoes.

The area around the cut opening and the seam of this casual shoe was dark brown, the inside of the surface had a slightly reddish brown tone, and the entire shoe was dyed brown. The shoes had a visually appealing appearance due to their deep tones and subtle changes in hue.

In addition, casual shoes can be shipped after being dyed with metal complex dyes to a desired color when necessary.

Example 2 A leather-like sheet finished by adding a porous polyurethane coating layer to the surface of a base layer containing polyurethane in a polyester fiber-entangled nonwoven fabric was cut into pieces for men's shoes, and the pieces were sewn. After attaching the inner sole to the obtained cover, apply a polyurethane primer solution (dyeing amount 2 for metal complex dye).
61mg/g) was applied to the periphery and the middle sole, and a polyvinyl chloride resin composition molded outsole was used as the ground sole, and the same polyurethane primer solution was applied to the adhesive surface, and then the bottom part and the ground sole were coated with the same polyurethane primer solution. A vinyl chloride resin composition was injected as an intermediate sole molding material between the two by an injection molding method to form an intermediate sole. Next, the above-mentioned polyurethane primer solution was applied to the peripheral surface of the sole, and after drying, it was dyed by dip dyeing under the following conditions.

Dark brown thread metal complex dye composition 3.7%owf Leveling agent 1gIQ Bath ratio 1:50
Dyeing temperature: 80℃ Dyeing time
After dyeing by shaking in a tank for 10 minutes, the dyed products were soaped, washed with water, and dried in a tunnel hot air dryer to make men's shoes.

These men's shoes had a deep color, with the upper part and the sole being dyed in almost the same tone, giving them an appealing appearance. In addition, the peeling strength between the heel and the sole was sufficiently high.

Example 3 A colored suede-like sheet made of polyester fiber with a napped surface of ultrafine polyester fiber and polyurethane was cut and sewn to make a casual shoe cover, and further,
A cloth tape is sewn around the bottom of the shoe cover, which corresponds to the upper edge of the sole of the Injie Gunyong molded shoe, and an easily dyeable polyester primer resin is applied, and then thermoplastic polyurethane is applied using the ino-no-ection method. The periphery of the sole is coated with a polyester primer resin solution (5K 177 mg/g for disperse dyes), and then dyed using a dye composition mainly consisting of disperse dyes under the following conditions: did.

Dyeing composition 13% 0 Sodium dispersant
2% owf carrier
5%ow4 acetic acid (90%)
Ice/(iSodium acetate
0.15g #bath ratio
1.50 dyeing temperature
90°C Dyeing time: 10 minutes Dyeing Machine: Liquid circulation dyeing machine After dyeing, treated with a reducing agent treatment solution containing hydrosulfide, then soaped and washed with water, dried in a tunnel type warm air dryer, and dried in a tunnel-type hot air dryer. A water repellent solution was applied to the shoes using a spray method, and after curing, a layer of plush was applied to create casual shoes for men.

These casual shoes had a deep color tone, with the cover and soles dyed in the same color, and were a good product.

Example 4 A foamed vinyl chloride resin coating layer colored with a blue pigment was applied to a double knit base fabric, and when using vinyl chloride leather with a blue surface finish as a shoe covering material, the engraving depth was adjusted in shallow and deep areas. Using a gravure roll with carved floral patterns, apply polyurethane primer resin (dyeing amount ztoag/g for metal complex dye), and after drying,
Cut for shoelaces. The pieces were sewn using the same primer resin-treated polyester sewing thread to make a children's shoe cover and a women's shoe cover.Then, the same polyurethane resin was used to integrally mold the shoe sole using the innoekunyong method, and the periphery of the sole was sewn. also made shoes coated with the same primer resin.

The injection method involves dyeing with a metal complex dye at three dyeing times of 3 minutes, 5 minutes, and 10 minutes, thoroughly soaping,
The dye was removed from areas without primer resin by washing with water and drying with warm air. The resulting shoes had a complex color tone due to the difference in the amount of primer resin applied and the synergistic effect with the dyeing time, as well as the relationship with the ground color, and had a unique flavor that could not be obtained with pigment coloring or normal dyeing methods. . In addition, the sewing threads coated with primer resin and the periphery of the sole were dyed in the same color, creating a natural accent for the shoe.

Example 5 A base layer containing porous polyurethane was applied to a fiber-entangled non-woven fabric, a porous polyurethane coating layer was applied to the lower side of the base layer, a pigment-colored undercoat layer was applied to the surface of the coating layer, and leather-like embossing was applied to the surface of the coating layer. The shaped leather-like sheet is further coated with polyoxyethylene non-yellowing polyurethane which has a high affinity for dyes (melting point approximately 197°C, dyeing amount 248B/g for metal complex dyes).
) was coated in two stages with a gravure roll to finish the shoe material, and a polycarbonate-based non-yellowing polyurethane (melting point: approx. 156°C, resistance to metal complex dyes 184 mg/g), which has a lower dye affinity than the finishing polyurethane
) Apply primer resin in a geometric pattern using the gravure method,
Additionally, polyester sewing thread was treated with the same primer resin.

The material for shoe laces was cut into laces, the pieces were sewn to make laces, and a polyurethane sole was integrally molded using the injection method to make injection shoes. These shoes were dyed with a metal complex dye under the conditions shown in Table 1 below.

Table 2 shows the dyed state of the shoes obtained by dyeing the margins, soaping, washing with water, and drying.

By coating the margins, that is, easily dyeable primer resins with different dyeing behavior, it is possible to adjust the color tone, transparency, and sharpness, so that very diverse colored films can be easily obtained.

[Effect of the invention]

Claims (5)

[Claims] (1) Shoes formed by applying an easily dyeable primer resin to at least a portion of an injection molded shoe, the amount of which dyes the dye used for dyeing the shoes at least 30 mg/g. (2) Apply an easy-to-dye primer resin with a dyeing amount of at least 30 mg/g to the dye used for dyeing shoes before cutting the shoe material, on the cut pieces, and on the shoe shoe made from the cut pieces. In any process, apply to a part or the entire surface of the coat,
A shoe manufacturing method characterized by integrally molding a shoe sole onto a made shoelace using an injection method, and then coloring the resulting shoe with dye. (3) A shoe sole is integrally molded onto a shoe cover made of a material that can be colored with dye by an injection method, and at least the periphery of the sole of the resulting shoe is coated with the dye used for dyeing the shoe cover. A method for manufacturing shoes, which comprises applying an easily dyeable primer resin having a dyeing amount of at least 30 mg/g, and then coloring with a dye. (4) An easily dyeable resin or an easily dyeable resin composition having a staining amount of at least 30 mg/g with respect to the dye used for dyeing the coat is applied to the coat made using a material that can be colored with a dye. A shoe manufacturing method characterized by integrally molding a shoe sole using resin using an injection method, and then coloring the resulting shoe with a dye. (5) Using an injection method, the sole is integrally molded onto the shoe cover, which is sewn with sewing thread treated with an easily dyeable primer resin that has a dyeing amount of at least 30 mg/g for the dye used for dyeing the shoes, and if necessary, at least A method of manufacturing shoes characterized by applying an easily dyeable primer resin to the periphery of the sole and then coloring with a dye.