KR20010084322A - Harmles luminous leather and its manufacturing method - Google Patents

Abstract

PURPOSE: Provided are a method of preparing harmless luminous leather which comprises coating luminous materials on the leather in finishing process to improve discriminating power at night and durability, and a harmless luminous leather prepared by the method. CONSTITUTION: The method of preparing luminous leather is characterized that it comprises the following steps: coating the first coating layer from conventional leather preparation with solution which is obtained by adding 30% water to 20% dispersant containing EC(ethyl cellulose), BC, surfactants, and IPA, and then combining 15 to 25% luminous pigment, and then adding the mixture to a colouring agent containing 200% pigments with 50% wax, 100% filler and 450% acrylic or urethane resin to form second coating layer; and forming an additional coating layer of suitable glossy C.A.B or nitrocellulose on the upside of the second coating layer.

Description

Harmless luminous leather and its manufacturing method

The present invention relates to a manufacturing method and a luminous leather of a harmless noctilucent leather, and more particularly, to provide a leather having excellent nighttime identification and durability by coating a luminous material during a finishing process.

In general, leather is excellent in heat retention and excellent durability of the product is widely used in the manufacture of clothing, and soft properties are widely used in wallets and other belongings, shoes, and the like.

Conventional leather as described above is produced by the manufacturing process as follows, look at based on Figure 1 as follows.

<Manufacturing process>

1. Hair removal and dirt removal

Wash the salted leather and remove any hair on the surface to prevent deterioration.

2. Remove oil layer

The oil layer on the back of the leather is removed to form a pure leather layer.

3. tanning

Leather is adsorbed with metal salt or leather material to improve the physical properties of weak raw leather tissue.

4. Processing

The back of the leather (dermis layer) is cut to the required thickness.

5. Dyeing

Put the leather in the dye bath to dye the leather in the desired color.

6. Drying

The moisture contained in the dyed leather is dried.

7. Finishing

It is a process of painting to give the desired final color and coating to protect the painted color.

The finishing process can be done in various ways such as spraying, padding, embossing, ironing, and roller coating, where the coating liquid is 300% of acrylic resin by weight and adhesive. 150% urethane resin, 50% wax as a tactile agent, 120% filler and 180 ~ 220% pigment as a tactile and gloss regulator are used.

The conventional leather manufactured by the manufacturing process as described above was manufactured by focusing on the sensual side such as color. For example, when the shoes are manufactured using such leather, the color is clear during the day and the aesthetics may be exerted. However, when worn at night there was a disadvantage that the color is not discernible.

The present invention has been researched and developed in order to secure the disadvantages of the prior art as described above, a coating liquid mixed with pigments, waxes, fillers, acrylic resins and mixtures in which luminous pigments are added to a solution of dispersant and water during the finishing process of leather manufacturing process. By mixing with the luminous pigment on the surface of the leather evenly to provide a leather with excellent night-identification is to complete the present invention with the technical problem of the present invention.

1 is a block diagram showing a conventional leather manufacturing process

2 is a block diagram showing a leather finishing process of the present invention.

Figure 3 is a cross-sectional view of the luminous leather that can be configured by the present invention

☆ Explanation of symbols for main parts of drawing ☆

A: Leather 1: Reticular layer

2: dermal layer 3: first coating layer

4: second coating layer 5: coating layer

Figure 2 is a block diagram showing a manufacturing process diagram of the present invention, the configuration of the present invention will be described in detail below.

Raw leather is easily deteriorated, so keep it salted. Using the salted raw leather to produce a leather bar, the manufacturing method thereof is the same as the conventional manufacturing method described above.

The present invention is to be able to coat the luminous pigment during the finishing process in the conventional manufacturing method, looking at the finishing process according to the present invention.

Finishing process

1. Spraying, padding

300% acrylic resin by weight ratio, 150% urethane resin by adhesive, wax 50% by touch, 120% filler by touch and gloss control agent, pigment (pigment) ) The first coating layer is formed by applying a solution mixed with 180 ~ 220%.

2. Coloring coating

The second coating layer is formed by applying a solution to which the luminous pigment is added above the first coating layer formed by the above process.

The solution used for the second coating layer is mixed with 20% of a dispersant containing EC (Ethyl cellulose), BC, surfactant, IPA in a weight ratio of 30% water, 15 to 25% of luminous pigments, and the mixture is a pigment ( pigment) 200% of wax, 50% of filler, 100% of filler, 450% of acrylic or urethane resin was added to color mixture.

In this case, the dispersant (purchased product) serves to distribute the heavy luminous pigment evenly on the solution without sinking in the solution.

3. Top coating

The coating layer is formed by selecting one of CAB (cellulose acetate buthylate), nitrocellulose, and urethane, which has a suitable gloss, on the upper part of the second coating layer formed by coating the solution made through the above-described process. .

The luminous leather of the present invention produced by the above-described manufacturing method is the first coating layer (3) in the dermal layer (2) of the reticular layer (1) and the dermis layer (2) of the dyed leather (A) as shown in FIG. ), The second coating layer 4 and the coating layer 5 is applied in sequence.

The luminous leather of the invention produced by the manufacturing method as described above is mainly applicable to clothes, bags, shoes, etc., during the finishing process to form the first coating layer (3) by spraying or padding in the same manner as conventional By forming a second coating layer (4) containing a luminous pigment distributed evenly without dispersing in the solution phase by the dispersing agent to the upper side, it is mainly used for clothes or other belongings of a person who is active at night. It can be a means of informing people to be protected from safety accidents (traffic accidents, etc.).

And by forming a coating layer (5) that can be appropriately polished on the upper side of the second coating layer (4), it is possible to make the finished product look luxurious while protecting the above-described coating layers (3,4) It can be improved.

The luminous leather of the present invention manufactured as described above is excellent in physical properties and can be produced at a low price, and can give a different fashion feeling of luminous, as well as it can be easily identified at night as mentioned above. It is a very excellent invention such that it can be protected from the back and the durability is improved by the coating layer (5).

Claims (2)

Refining, processing, dyeing, drying, leather surface by weight ratio 300% acrylic resin, 150% urethane resin with excellent adhesion, 50% wax as a touch agent and 120% filler as a touch and gloss adjuster In the conventional leather manufacturing method which finishes by the method of spraying, padding, etc. using the solution which mixed 180-220% of pigments; 30% of water is mixed with 20% of a dispersant in which EC (Ethyl cellulose), BC, surfactant, and IPA are mixed in a weight ratio on the leather surface on which the first coating layer is formed by spraying or padding. 15 to 25% of the mixture, a process of forming a second coating layer by applying a solution in which the mixture is mixed with a pigment, 200% wax, 50% wax, 100% acrylic or 450% urethane resin mixed with the pigment; Method of producing a harmless noctilucent luminous leather, characterized in that the coating layer is formed by using a C.A.B (cellulose acetate buthylate) or Nitrocellulose having a gloss on the second coating layer. In constructing a coating layer on the leather surface; 30% of water is mixed with 20% of a dispersant in which EC (Ethyl cellulose), BC, surfactant, and IPA are mixed in a weight ratio on the upper portion of the first coating layer 3 of leather on which the first coating layer 3 is formed. 25% of the mixture, and the second coating layer (4) by applying a solution in which the mixture was added to the colorant mixed with 200% of the general dye, 50% wax, 100% acrylic or 450% urethane resin, Harmless luminous leather, characterized in that the coating layer (5) made of C.A.B (cellulose acetate buthylate) or Nitrocellulose having a gloss on the second coating layer (4).