KR100867489B1 - The manufacturing method of ripple pattern surface effect leather by grain leather - Google Patents

Abstract

A manufacturing method of the leather having moire skin effect to the Grain leather is provided to have splendid moire skin effect, to make low-class rawhide into high quality and to implement a natural moire effect at the surface of leather and to improve conspicuously a painting process of leather. Water layers are formed by applying an acidic dye or a basic dye entering a deposition container. The water layers and organic layer are separated by adding an organic pigment mixed solution consisting of the mixture solution of diluent and organic pigment in the water layers. The leather is dipped for 1~10 seconds by facing the hidden surface layer in a downward direction.

Description

The manufacturing method of ripple pattern surface effect leather by grain leather}

The present invention relates to a method of manufacturing leather, and more particularly, to a method of manufacturing leather having a wavy surface effect using a cowhide silver leather.

In general, the finishing process currently being used by leather companies is spray coating, roll coating, roll coating, using a binder, wax, pigment, and varnish on simply dyed leather. Padding coating is applied to pursue a uniform design. On the other hand, in order to give the surface effect by multi-color, products that apply some classical surface techniques such as printing, printing, and embossing are becoming mainstream.

In addition, the coating method of natural leather is largely classified into spray coating, roll coating, padding coating method. These coating methods generally insist only on coatings with standardized surface effects, making it impossible to produce a variety of color patterns, as well as excessive amounts of pigments and various special foam binders to cover or conceal surface scratches that are lagging behind. Tend to take advantage of it.

Such a conventional leather manufacturing technology tends to pursue only artificial splendor without considering the natural effects that are the characteristics of the leather itself, and has a problem in that the cost of the product and the productivity are lowered. The generation has a low response. In addition, due to the nature of the coating process, the uneven color of the final leather product, the lack of surface covering / concealment, abnormal coating process when delivered to the consumer can cause serious problems for the manufacturer of the leather due to reduced consumer preference.

Such treatment technology has a problem of manufacturing leather by adding excessive amount of chemicals in order to remove surface scratches and give the surface beauty to dyed leather, and there is no research on technology that gives various surface effects. Instead, the situation is concentrated on artificial leather manufacturing by simply printing, printing and embossing.

Accordingly, the present invention is to solve the problems described above, to provide a fine wavy surface effect to the leather of the cowhide (Grain leather) to cover and hide the surface scratches of the leather to enhance the low-quality raw material skin to the surface of the leather It provides a way to achieve natural wave pattern effect.

In addition, the present invention significantly improves the coating process of the leather to eliminate the use of the pigment in the base coating (Medium coating), Medium coating (Top coating) process, which is a conventional leather coating process The introduction provides a method by which surface beauty can be imparted.

In order to solve the above problems, the present invention provides a water layer (water layer) forming process for imparting a natural spreading of the surface to the surface effect of the dyed leather or undyed leather using the skin of the cowhide; Organic pigment manufacturing process which mixes a pigment and a diluent; An aqueous layer-organic layer separation process of forming an organic layer in which pigment is separated from the aqueous layer 20 and adsorbed on the silver surface; A leather silver cotton immersion step of allowing the pigment to be adsorbed on the silver surface of the cowhide; Drying of leather having a wavy surface effect; It is characterized by consisting of a smoothing process that evens and polishes the surface of the dried leather.

In addition, the present invention is a natural amorphous form that has never been attempted before by giving a unique surface design by performing a base coating, a medium coating, a top coating, which is a conventional coating process that excludes the use of pigments to give color in the coating process of leather. We present a method of making leather that imparts a moiré effect.

The present invention as described above is to reduce the amount of dye used during the manufacturing process of grain leather (Grain leather) of cowhide and to produce an amorphous wavy patterned leather with a unique surface effect by dipping tray (less distillation of waste water, dipping vessel) It is possible to reduce the environmental pollution by repeating reuse of dyes used in water layers of dipping trays, and at the same time, it uses expensive dyes in dipping trays to reduce the environmental pollution. There is an advantage that can reduce the cost by drastically reducing the usage.

In addition, the present invention has the advantage that it is possible to manufacture the latest hazardous leather of the amorphous which is different from the previous leather products at the time of final product production to establish a leather manufacturing method capable of producing high value-added leather products.

In addition, the present invention is characterized by minimizing the use of conventional dyes and pigments used in the dyeing and painting process, the organic pigments mainly used in leather {specifically, white organic pigments (L / L WHITE-AX -N), red organic pigments (L / L NY Red), yellow organic pigments (L / L NY Yellow-G), green organic pigments (L / L NY Green), blue organic pigments (L / L NY Blue), Baolet Organic Pigment (L / L NY Violet), Carmine Organic Pigment (L / L NY CARMINE)} and dyes (acid dyes, basic dyes) are applied to increase the production cost by chemicals In addition to being able to manufacture without major changes in, the specificity of the surface effect has the effect of producing high value-added leather products.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. DETAILED DESCRIPTION In the following detailed description, one exemplary embodiment of the present invention will be presented to accomplish the above technical problem. And other embodiments that can be presented with the present invention are replaced by the description in the configuration of the present invention.

Leather manufacturing process according to the present invention is to produce a high value added to the surface effect of the leather gorgeously and variously, unlike the conventional leather coating method spray coating, roll coating, padding coating method of the main bonding parts of the leather Pigment on the surface of natural leather using the principle of O / W type (Oil in water) or W / O type (Water in oil) method using colorant by applying hydrophilic group and hydrodrop group group Process to manufacture high-tech leather products using high quality raw materials (Grade C ~ E grade) using low grade raw skin (Grade C ~ E grade) by inducing selective adsorption to give various, natural and luxurious wave pattern surface effects. Implement

In order to manufacture the latest fashionable leather in accordance with the present invention by manufacturing the immersion container 10 to adjust the concentration of the amount, dyes and pigments to give a natural spread of the surface, to give a natural effect of the leather surface Dissolving acidic dyes and basic dyes in the water layer, and adjusting oily pigments to an appropriate concentration to adjust the sharpness of the leather adsorption to establish a leather manufacturing process having a natural surface effect by dipping the leather.

On the other hand, the following describes the embodiment of the conventional leather manufacturing process and the leather manufacturing process, preferably the dyeing process and the coating process according to the present invention.

First of all, there are four types of leather manufacturing methods: preparation, tanning, dyeing and painting. The preparation process is a process of removing raw hair, fat, soluble proteins, etc. necessary for leather production under alkaline conditions by inputting the raw material blood, and the tanning process is a stable fiber structure by reacting tanning agents such as collagen protein and chromium. Process of making. Through this process, dyeing process, which is one of the important factors to determine the product value by giving various colors and flexibility to the leather, according to the merchandise and consumer's desire of leather products, is carried out. In addition, the pigment is used to proceed with the coating process to determine the commerciality of the final product.

In the conventional dyeing process, powder type acid dyes, liquid type acid dyes, basic dyes, metal dyes, mordant dyes, etc. are used to give the color of leather. In the process, the excess dye is used for smooth color matching to induce adsorption and penetration, so that dyes which cannot be combined with leather are spilled into the waste water, and thus biochemical oxygen demand (BOD), COD (chemical turbidity), and turbidity Increase the value of oxygen demand).

Therefore, the present invention induces the selective adsorption of the leather 40 in the immersion container 10 rather than the conventional drum dyeing process to reduce the amount of dye used and simultaneously process the dyeing and painting process to reduce the amount of wastewater generated, Reduced dye usage and increased productivity will enable the production of environmentally friendly and trendy leather products.

Compared to textile products, leather products have a uniform color and have difficulty in providing various surface effects suitable for young consumers.However, the establishment of this dyeing and painting batch processing process has prevented the development of multi-color colors. It will be possible to reduce the generation of malignant wastewater and pollution by unreacted substances, which is a problem in the manufacturing process, and to enhance the fashion of leather products among major household goods and to make more reasonable high value for health and environment with creative and eco-friendly research methods. The product is manufactured.

Hereinafter will be described in detail based on the preferred embodiment of the present invention, the present invention is not limited by the embodiment. In particular, the present invention is found to be applicable to the overall process of leather products.

{Example 1}

As shown in FIG. 1, an acid dye is applied to the water layer 20 of the immersion container 10 by using a leather 40 which is not dyed by using cowhide leather (Grain leather) or by using a dyed leather 40. Or after applying a basic dye 0.1% to 10% (mass% by volume) to form a water layer; Organic pigments for normal leather {preferably white organic pigments (L / L WHITE-AX-N), red organic pigments (L / L NY Red), yellow organic pigments (L / L NY Yellow-G), green Organic Pigment (L / L NY Green), Blue Organic Pigment (L / L NY Blue), Baorette Organic Pigment (L / L NY Violet), Carmine Organic Pigment (L / L NY CARMINE)} and Organic Solvent Diluent : L / L # 7500 Thinner) after the organic pigment production process by selecting and mixing one of 1: 1, 1: 2, 1: 3, 1: 4, 1: 5; After immersing 1 ~ 100ml (Dropping) to a dipping tray (Dipping tray) to form a dipping tray (Dipping tray) through the separation of the water layer 20-organic layer 30; Dipping the grain layer of leather 40 downward for a time between 1 and 10 seconds; After the drying and the smoothing process using a roll iron (Roll iron); In the normal leather coating process, the coating process was eliminated without the use of pigments to produce amorphous wavy leather products.

1 is a process chart showing a method for producing a high-quality leather by imparting a wave pattern surface effect of the silver leather according to an embodiment of the present invention.

Figure 2 is a view showing that carried out using the immersion container of the leather manufacturing method having a wavy surface effect using a cowhide silver leather.

3 is a view showing the leather imparted with a wavy surface effect on the cowhide silver leather.

<Description of the symbols for the main parts of the drawings>

10: immersion container 20: water layer

30: organic layer 40: silver cotton leather

Claims (3)

In the manufacturing method of the silver leather product which contains the drying and smoothing process which is normally performed at the time of a leather manufacturing process, It is processed using the immersion vessel 10 instead of the drum, which is a device used in the dyeing and painting process, and a water layer forming process consisting of applying an acid dye or a basic dye of 0.1 ~ 10% of the water entering the immersion vessel 10 and ; Organic pigment manufacturing process which mixes L / L NY series organic pigment and diluent; An aqueous layer-organic pigment separation step of separating the aqueous layer 20 and the organic layer 30 by adding an organic pigment mixed solution composed of an organic pigment and a diluent mixture to the aqueous layer 20; A leather manufacturing method having an amorphous wavy pattern surface effect using a cowhide silver skin, characterized in that it further comprises a leather dipping step of immersing for 1 to 10 seconds to face the silver layer. delete The method of claim 1, wherein the organic pigment manufacturing process, L / L NY skin organic leather and organic solvent diluent 1: 1, 1: 2, 1: 3, 1: 4, 1: 5 of the cowhide noodle leather characterized in that it has a method of blending Leather production method having an amorphous wavy surface effect.

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