JPS618338A - Implanted work and manufacture thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a flocked product (also referred to as a flocked product) in which piles are planted on a base material via an adhesive layer, and a method for manufacturing the same. .

Conventional techniques There are two methods for flocking: mechanical processing methods and electrostatic processing methods, but in both cases, countless single fiber piles obtained by cutting fibers to an appropriate length are made to fly up. Flocking is performed by sticking this into an adhesive layer coated and formed on a base material.

However, in such conventional methods, ■ If the length of the pile is increased, curves and entanglements occur, so the ratio of length to fiber thickness is 1.5 denier 0.8 I■ or less in the case of rayon, for example. 3.0 denier 1.1 1 or less 8.0 denier 2.5 It cannot meet the market demand for something soft to the touch after hair transplantation.

(False) If you transplant an undyed pile onto an undyed base material and then dye the entire flock, the flocking density of the pile will not rise above a certain level, and the density unevenness cannot be completely eliminated. □It is inevitable that uneven dyeing will occur on objects.

There were problems such as:

Problems to be Solved by the Invention The present invention has been made to solve the above-mentioned conventional problems, and is capable of transplanting a long pile even though the denier is small. The object of the present invention is to provide a flocked product that does not cause uneven dyeing even when the entire flocked material is dyed after flocking an undyed pile on a base material for dyeing.

The present invention is a flocked product in which the entire flocked product is dyed after pile flocking, and the bundled piles are scattered in groups within the adhesive layer on the base material, while the adhesive layer A flocked product with a structure in which the bundled pile is deconcentrated on the outside.

In addition, the multifilament that has been bundled with a temporary adhesive is cut into bundled piles, which bundled pile is used to perform flocking on the base material, and then the flocked material is At the same time, the temporary adhesive adhering to the bundled pile is removed to check the bundled state of the piled part exposed outside the adhesive layer on the base material. A method for manufacturing a flocked product characterized by unraveling.

The main points are as follows.

FIG. 1 is a schematic cross-sectional view showing an example of the flocked product of the present invention, in which (1) is a base material, (2) is an adhesive layer coated on the base material (1), (3) is its adhesive layer (2
) The pile (3) is in a focused state in the part (3a) inside the adhesive layer (2), while in the part (3a) outside the adhesive layer (2)
3b) is in its unfocused state. This is because such flocked flocks are scattered on the base material (1) via the adhesive layer (2), and the entire flocked product is dyed by post-staining.

Such a flocked product is preferably manufactured by the following steps.

l) Collect a large number of fine denier filaments and bundle them using a temporary adhesive.

2) Cut the focused multifilament to form a focused pile.

3) Using this bundled pile, flocking is performed on a base material coated with an adhesive in advance.

4) The entire obtained flock is subjected to a dyeing process. At the same time as the dyeing is done during this dyeing process, the temporary adhesive adhering to the part of the flocked bundled pile that is exposed from the adhesive layer is removed, and the pile becomes a single fiber one by one. It is relaxing.

5) After the dyeing process, wash with water if necessary, and perform drying, secondary processing, etc.

In addition to woven fabrics, non-woven fabrics, and knitted fabrics (including cloth and nets), the base materials used in the present invention include flocked fabrics (in this case, double flocked fabrics), foam-lined fabrics, sponges,
Examples include leather, synthetic resin sheets/films, paper, and wooden products.

Any adhesive can be used as long as it does not impair its adhesive properties during the dyeing process, such as polyvinyl acetate or vinyl acetate copolymers, polyacrylic esters or acrylic ester copolymers. , ethylene-vinyl acetate copolymer, synthetic rubber, natural rubber, polyurethane, epoxy resin, polyester resin, phenol resin, melamine resin, urea resin, urea-melamine resin, and other known adhesives may be used alone or in combination of two or more. It is used as

As the pile raw material, any conventionally known pile raw material can be used, including rayon, acetate, cotton, nylon, acrylic, polyester, vinylon, polypropylene, polyvinyl chloride, polyvinylidene chloride, polyfural, and inorganic fibers.

Before cutting, the pile raw material is bundled using a temporary adhesive. As a temporary adhesive, one is used that has sufficient adhesive strength to bundle long fibrous pile materials, but also has properties that allow it to be easily dissolved and removed in the dye bath during the dyeing process. Such temporary adhesives include, for example, polyvinyl alcohol or its modified products (modified products with unsaturated carboxylic acids, unsaturated sulfonic acids, olefins, etc.), acrylics modified with unsaturated carboxylic acids or unsaturated sulfonic acids, etc. copolymers, polyacrylamide, polydonylpyrrolidone, hydroxyethyl cellulose, and carboxymethyl cellulose molecules are used.

The number of condensed fibers can be arbitrarily selected from several to several hundred or more, and usually the thickness after convergence is 0, 5 to 50.
It should be about 0 denier.

The cut length of the bundled fibers can also be arbitrarily selected. This is because even if the denier is 1 denier or less, it is bundled, so even if you choose the number of bundles appropriately, it is not possible to make a pile that is straight and does not cause tangles. Because it can be done.

The present invention can also be applied to mechanical hair transplantation methods.

Since a relatively heavy focused pile is used, it is more desirable to adopt an electrostatic flocking method.

Therefore, when the latter method is adopted, it is necessary to treat the long fiber pile material with an electrodeposition treatment agent before or after the convergence treatment, or simultaneously with the convergence treatment. Note that the treatment with this electrodeposition treatment agent may be performed on the bundled pile after cutting.

When performing the focusing treatment and the treatment with the electrodeposition treatment agent at the same time, the electrodeposition treatment agent may be mixed into the solution or dispersion of the temporary adhesive.

As the electrodeposition treatment agent, conventionally known electrodeposition treatment agents including various inorganic salts, surfactants, organosilicon, and alumina sol can be used.

Adhesive is applied to the base material, hair is transplanted according to a conventional method, and then the entire flock is subjected to a dyeing process.

Depending on the type of pile raw material, dyes include direct dyes, acid dyes, acid mordant dyes, complex acid dyes, basic dyes, sulfur dyes, velvet dyes, naphthol dyes, reactive dyes, disperse dyes, sulfur vat dyes, It is appropriately selected from cationic dyes and the like.

During this dyeing process, both the base material and the pile of the flocked material are dyed, and at the same time, the temporary adhesive adhering to the part of the bundled pile that is exposed from the adhesive layer is washed away in the dye bath.

After the dyeing process is completed, if necessary, post-treatment to improve fastness, washing with water, etc. are performed before drying.

Appropriate secondary processing is also performed.

Industrial Applicability The flocked product of the present invention is useful for carpets, sofa fabrics, seed fabrics, clothing, footwear, miscellaneous goods, and the like.

Effects of the Invention The present invention employs a unique method of flocking bundled piles, so even if the l* single fibers that make up the pile have a fine denier, they become rigid by being bundled. Therefore, flocking is possible even if the pile cut length is lengthened, and therefore, it is possible to fully meet the market demand for something with a long fiber length and a soft feel after flocking.

Moreover, this focused pile flocking method can significantly increase the flocking density per unit area, and after dyeing, the parts of the focused pile that are exposed upward from the adhesive layer are left in individual strands. Since the fibers are separated and massaged during the dyeing process, there is almost no unevenness in dyeing when the entire flocked product is dyed, and the resulting flocked product has an appearance and feel that is hard to believe is a flocked product. It has a good texture and a beautiful textile-like appearance.

Furthermore, since the present invention involves dyeing the flocked material after producing it, it is advantageous in that it can be stockpiled and can be dyed in the desired color when necessary.

Example Next, the present invention will be explained in more detail with reference to Examples.

Example 1 75 denier copper-ammonia process rayon (Bemberg, manufactured by Asahi Kasei Corporation), which was a collection of 58 single yarns of 1.3 denier, was coated with polyvinyl alcohol (temporary adhesive) and 2% sodium silicate (electrodeposition treatment). agent) 3% magnesium sulfate (electrodeposition treatment agent) 3% water
After passing through a treatment solution of 92% at a temperature of 40%, it is squeezed, and then the temperature is 50 to 60°C.
Dry with hot air.

Next, the multifilament that has been bundled and electrodeposited by the above process is cut into a length of 2.5 cm to form a bundled pile, and this bundled pile is used to create an acrylic-ray coated with a cross-linked acrylic adhesive. - After flocking the nylon fabric using the down method,
Baking was performed for a minute.

Next, the flocked material obtained in this way is immersed in a dye bath containing a direct dye and dyed at a temperature of 95°C for 30 minutes. At the same time, the temporary adhesive adhering to the bundled pile is washed away, and further washed with water and dyed. The desired flocked product was obtained by drying.

The resulting flocked product had a beautiful, clear and uniform dyeing, and because it was kneaded in the dyeing process, it had a beautiful textile-like appearance and feel.

Example 2 26 single yarns of 5.7 denier were collected and bundled with a dilute aqueous solution of polyvinyl alcohol (temporary adhesive). Rayon of 150 denier (manufactured by Asahi Kasei Corporation 1) was mixed with 3% sodium silicate and sodium chloride. It was immersed in an electrodeposition treatment agent solution consisting of 3% water and 94% water, then squeezed and dried.

Next, the bundled multifilament subjected to the H electrodeposition process was carted to a length of 5 cm to form a bundled pile, and this bundled pile was used to create an acrylic-rayon fabric coated with a cross-linked acrylic adhesive. After flocking the cloth using a down method, the cloth was baked at a temperature of 150° C. for 3 minutes.

The flock thus obtained is immersed in a dye bath containing direct dye and dyed at a temperature of 95°C for 30 minutes. At the same time, the temporary adhesive adhering to the bundled pile is washed away, and then washed with water. and drying to obtain the desired flocked product.

The resulting flocked product had a beautiful, clear and uniform dyeing, and because it was kneaded in the dyeing process, it had a beautiful textile-like appearance and feel.

Example 3 A 30-denier nylon multifilament made by collecting 600 0.05-denier single yarns and binding them with a dilute aqueous solution of polyvinyl alcohol (temporary adhesive), and adding 0.7% silicone soda as a surfactant.
0.8% colloidal silica
2.0% water 8
B. After spraying an electrodeposition treatment agent consisting of 5%, it was dried.

Next, the bundled multifilament subjected to the above electrodeposition process is cut into a length of 3 cm to form a bundled pile, and this bundled pile is used to attach a nylon woven fabric coated with a cross-linked acrylic adhesive using the down method. After the hair was transplanted using the method, it was baked at a temperature of 150° C. for 3 minutes.

The flocked material thus obtained is immersed in a dye bath containing an acid dye and dyed at a temperature of 95°C for 30 minutes, and at the same time, the temporary adhesive adhering to the bundled pile is washed away.
Further washing with water and drying were performed to obtain the desired flocked product.

The resulting flocked product was dyed beautifully and evenly, and had a beautiful textile-like appearance and feel because it was kneaded in the dyeing process.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view showing an example of the flocked product of the present invention. (1)...Base material, (2)...Adhesive layer, (3)...
・Pile, (3a)...Part of the pile inside the adhesive layer (in a focused state), (3b)...Part of the pile outside the adhesive layer (unfocused) Patent applicant Nishijin Pile Industry Co., Ltd. Figure 1

Claims (1)

[Claims] 1. A flocked product in which the entire flocked product is dyed after pile flocking, in which focused piles are scattered in groups within the adhesive layer on the base material, while focused piles are scattered outside the adhesive layer. A flocked product having a structure in which the convergence state is released. 2. Cut the multifilament that has been bundled with a temporary adhesive to form a bundled pile, use this bundled pile to transplant hair onto a base material, and then subject the flocked material to a dyeing process to create a flocked material. Manufacture of a flocked product characterized by dyeing the whole part and simultaneously removing the temporary adhesive adhering to the bundled pile to release the bundled state of the part of the bundled pile exposed outside the adhesive layer on the base material. Law.