KR20170085361A

KR20170085361A - Leather glove and its printing method

Info

Publication number: KR20170085361A
Application number: KR1020160004891A
Authority: KR
Inventors: 강성일
Original assignee: 강성일
Priority date: 2016-01-14
Filing date: 2016-01-14
Publication date: 2017-07-24

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pattern printing method for a leather surface and a leather glove manufactured using the same,
A surface cleaning step (S1) for removing dust and various foreign substances adhering to the surface of the leather;
A base applying step (S2) of applying a medicine so as to form an ultrafine porous film on the surface of the leather before printing to improve the adhesion of the dye and the sharpness of the printed color or pattern;
A drying step (S3) of drying the skin to which the drug is applied so that the membrane of the micropores can be stably fixed on the surface of the leather;
A printing step (S4) of printing various colors or patterns on the surface of the leather so as to meet the demands of different users;
A surface coating step (S5) of coating the surface of the leather to prevent color or pattern printed on the surface of the leather from being discolored due to friction or heat that may occur during daily life, or from being lost due to sublimation of the dye;
A heating and pressing step (S6) for short time pressing under conditions of low heat and low pressure so as to improve the fixing property of the printed pattern; The color pattern and the pattern are printed on the surface of the leather with high clarity in a three-dimensional manner so as to meet the various needs of the user by avoiding the processing method of coloring the single color by using the pattern printing method of the leather surface, To a pattern printing method for a leather surface which can improve the processability and external esthetics of a leather product, and to a leather glove manufactured using the same.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leather glove,

The present invention relates to a method of printing a pattern on a leather surface and a leather glove manufactured using the same, wherein the method of coloring a single color is dispensed with to provide a color and a pattern on the surface of the leather The present invention relates to a pattern printing method for a leather surface which can improve the workability and external esthetics of a leather product by easily printing with high sharpness and a leather glove manufactured using the same.

Generally, leather is the skin of reptiles such as cattle, sheep, goats, horses, pigs, deer, and mammals such as crocodiles and lizards. Has been used as a storage container for storage, and today, due to its unique texture and characteristics, it is used not only as a material for bags, shoes and various ornaments but also in various fields such as medical field. This leather is peeled off from the animal's body, and if left untouched, it can not be used because it can not be used because it is decayed or cured. Therefore, it is necessary to remove unnecessary ingredients through tanning to maintain smooth texture, And the tanned leather is used in various coloring or reworking depending on the application.

On the other hand, in the method of pattern printing of the rubber plate and the leather, in the method of applying the paint to the surface of the rubber plate or leather finely melted by the pretreatment process, the pattern is printed by the heating press, A rubber plate for printing patterns on leather by heating and pressing a transfer paper placed on the upper surface of the leather, and a method for printing a pattern of leather.

However, in the above-mentioned conventional invention, when the transfer paper on which the pattern is printed by the heating press is thermally transferred to the surface of the rubber plate or the leather, the transfer paper is not separated due to the high heat of the heating press and the yellowing phenomenon And there is a problem that the rubber plate or the leather may also be damaged such as deformation or hardening.

In order to solve the above problems, the present invention provides a method of preventing the damage of leather due to high heat, adhesion of dye and printing by printing a pattern using LED UV flat plate printer after pretreatment process which can form a microporous film on the surface of leather A method of applying a coating liquid to the surface of a leather printed with a pattern to maintain the inherent texture of the leather and to minimize the discoloration due to loss of the dye by sublimation, And to provide leather gloves manufactured using the same.

The present invention relates to a pattern printing method of a leather surface and a leather glove manufactured using the same, which are solved in order to overcome the above-mentioned problems of the related art, and it is an object of the present invention to provide a pattern- A pattern printing method of a leather surface which can print various patterns having various patterns and can be stably fixed on the surface of a leather while preventing discoloration of a printed pattern by a pre-printing and post-processing process, and a leather The purpose is to provide gloves.

In order to solve the above problems,

The present invention relates to a method of cleaning a leather, comprising: a surface cleaning step of removing dust and various foreign substances attached to a surface of a leather; A base applying step of forming an ultrafine porous film on the surface of the leather before printing; A drying step of drying the skin to which the medicine is applied so that the membrane of the ultrafine pores can be stably fixed on the surface of the leather; A printing step of printing various colors or patterns on the surface of the leather; A surface coating step of coating the surface of the leather so that the color or pattern printed on the surface of the leather is discolored or the dye is sublimated and deteriorated; A heating and pressing step of pressurizing for a short period of time under conditions of low heat and low pressure; And a leather glove manufactured using the same.

The present invention relates to a pattern printing method for a leather surface and a leather glove manufactured using the same, and can easily control the color and brightness of a pattern printed on the surface of a leather, the thickness of a projected ink, etc. using an LED UV flatbed printer It is possible to improve the workability and outer esthetics of the leather by printing a variety of patterns that can meet different users' needs and to enhance the leather's workability and outer esthetics. By the work process excluding high temperature and high pressure heat treatment, It is possible not only to prevent damage such as deformation and hardening but also to improve the fixing property of the dye printed on the surface of the leather and the sharpness of the printed color or pattern.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a flow chart of a method of printing a pattern on a leather surface.

Hereinafter, the present invention will be described in more detail with reference to the accompanying flow chart.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concept of the term appropriately to describe its own invention in the best way. It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the configurations shown in the embodiments and the flowcharts described in the present specification are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

The present invention relates to a method of pattern printing on a leather surface, comprising: a surface cleaning step (S1) for removing dust and various foreign substances adhering to the surface of the leather; A base applying step (S2) of applying a medicine so as to form an ultrafine porous film on the surface of the leather before printing to improve the adhesion of the dye and the sharpness of the printed color or pattern; A drying step (S3) of drying the skin to which the drug is applied so that the membrane of the micropores can be stably fixed on the surface of the leather; A printing step (S4) of printing various colors or patterns on the surface of the leather so as to meet the demands of different users; A surface coating step (S5) of coating the surface of the leather to prevent color or pattern printed on the surface of the leather from being discolored due to friction or heat that may occur in daily life, or by dye sublimation; A heating and pressing step (S6) for short time pressing under conditions of low heat and low pressure so as to improve the fixing property of the printed pattern; And a leather glove manufactured by using the method.

More specifically,

The surface washing step (S1) is a step of removing the moisture and unnecessary components contained in the raw skins of the animal and adhering to the surface of the leather when carrying tanned or processed leather, which is a process of absorbing the emulsion so as to maintain a smooth texture It is a cleaning step that removes foreign substances by putting a 95% solution of ethanol for cleaning or leather wash which can be sprayed by spraying to remove dust and various foreign substances by putting it on a soft cloth.

The base applying step S2 is a step in which a polyether-based urethane resin having excellent abrasion resistance and chemical resistance and a polyacrylate resin (Resin) capable of improving the workability by improving viscosity are mixed at a weight ratio of 85 To 92: 8 to 15, followed by coating with a thickness of 7 to 40 μm on the leather surface using a roll coating or a spray coating method. When the thickness is 7 mu m or less, the effect of coating is scarcely produced, and when the thickness is more than 40 mu m, the leather texture is deteriorated, and the printed material may be easily damaged during printing. Therefore, it is coated on the leather surface with a thickness of 7 to 40 탆 and coated, so that the pattern printed in the subsequent printing step can be adsorbed on the surface for a long time.

By this step, the ultrafine porous film is formed on the surface of the leather before printing, so that the adhesion of the dye and the sharpness of the printed color or pattern can be improved. In addition, the polyether-based urethane resin is excellent in abrasion resistance and chemical resistance, and can uniformly maintain the texture of the leather after production, and if necessary, polyacrylic alcohol is added to the polyether-based urethane resin and polyacrylate resin mixture It functions to control the viscosity of the urethane resin.

In the drying step (S3), the leather coated with the mixture is allowed to stand at room temperature for 3 to 5 hours or so as to be able to stably fix the ultrafine porous film formed by the mixture of the polyether-based urethane resin and the polyacrylate- And then dried at a temperature of 90 to 120 ° C for 3 to 4 seconds through a heater.

The printing step (S4) uses LED UV flatbed printers that spray the colors or patterns specified by the operator on the surface of soft leather and then dry them with LED lamps, so that various colors and patterns that can meet different users' And the color and brightness of the pattern printed on the surface of the leather by the LED UV flat panel printer, the thickness of the projected ink, and the like can be easily controlled. The UV output is adhered to the upper surface of the leather and hardened, so that a three-dimensional pattern can be formed. Further, the printed pattern can be firmly adhered by printing on the upper surface of the leather using the soft ink, and the ink can be applied to various materials including leather, cotton, plastic, metal wood or acrylic.

In the surface coating step S5, the polyether-based urethane resin and the polyether-based urethane resin excellent in stability against oxygen and excellent in chemical resistance and aging resistance are provided on the surface of the leather printed with a certain color and pattern by the printing step S4 An isocyanate crosslinking agent capable of improving mechanical strength and chemical stability such as hardness and elasticity is mixed in an amount of 8 to 10:15 to 20 and then a roll coating or a spray coating method is used to form a film having a thickness of 7 to 40 μm .

The heating and pressing step (S6) is performed by using a heating press at a temperature of 80 to 120 DEG C and a pressure of 3 to 5 kg for 3 to 4 seconds so as to further improve the fixability and stability of the pattern printed on the surface of leather Wherein said step of pressurizing is carried out for a short period of time under a condition of low heat and low pressure as compared with a conventional method of pressing a high temperature of 180 DEG C or more and a high pressure of 1 Ton or more for 30 seconds or more by a heating press in order to fix colors and patterns on the surface of leather, Thereby minimizing the damage such as hardening and deformation of the leather caused by heat and pressure, and enhancing the external esthetics of the processed leather by doubling the gloss of the surface of the leather.

In one embodiment,

The leather that is supplied in the form that the unnecessary components are removed by the tannage and the emulsion is absorbed and the soft texture is maintained, is made by the compressed air which can be sprayed by the spraying method, To minimize the use of water by using a cloth with a chemical agent for the leather wash, which can prevent the hardening of the leather after drying due to the penetration of a large amount of water into the leather when it is washed by the chemicals for leather washing It is preferable to clean only the surface of the leather.

The leather washed by the above step is formed of a polyether-based urethane resin and a polyacrylate-based resin which acts as a thickening agent, in order to form an ultrafine porous film on the surface of the leather to improve the adhesion of the dye and the sharpness of the printed color or pattern. The mixture is applied to the surface of the leather at a thickness of 7 to 40 탆 and then allowed to stand at room temperature for 3 to 5 hours or at a temperature of 90 to 120 캜 through a heater. If the applied thickness of the mixture is less than 7 탆 or exceeds 40 탆, there is no coating effect or there is a possibility that the pattern to be printed may be detached from the leather surface. Therefore, It is preferable to adhere to the thickness.

A leather coated with a mixture of a polyether-based urethane resin and a polyacrylate-based resin is applied to an LED UV flatbed printer to print the color or pattern designated by the operator on the surface of the leather, The ink thus formed is immediately dried by the LED lamp provided in the LED UV flat panel printer so that the ink can be prevented from diffusing outside the range specified by the operator. In addition, the ink used in the LED UV flat panel printer may be removed from the surface of the leather by the stimulation caused by the external environment such as heat or friction when the soft ink is used as a product after printing or when the processed leather product is actually used So that the printed color or pattern can be prevented from being spread and deteriorated.

On the other hand, since the molecular structure of the dye used in printing is not constant, the activity of the molecule is enhanced when heat is applied by ultraviolet rays of sunlight in daily life. As the time passes, the dye printed on the surface of the leather gradually diffuses or sublimes A mixture of a polyether urethane resin and an isocyanate crosslinking agent in an amount of 8 to 10: 15 to 20 is coated on the surface of the leather printed with the color or the pattern so as to prevent the loss of the dye molecule, And the surface of the coated leather can be protected with a temperature of 80 to 120 ° C and a pressure of 3 to 5 kg in order to protect the printed surface and to further improve the fixability and stability of printed colors and patterns. The use of a heating press capable of pressurizing for ~ 4 seconds can be performed in parallel.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Various modifications and variations may be made thereto by those skilled in the art to which the present invention pertains.

Therefore, the spirit of the present invention should not be limited to the embodiments described, and all the equivalents or equivalents of the claims, as well as the appended claims, fall within the scope of the present invention.

Claims

A method of printing a pattern on a leather surface,
A surface cleaning step (S1) for removing dust and various foreign substances adhering to the surface of the leather;
A base applying step (S2) of applying a medicine so as to form an ultrafine porous film on the surface of the leather before printing to improve the adhesion of the dye and the sharpness of the printed color or pattern;
A drying step (S3) of drying the skin to which the drug is applied so that the membrane of the micropores can be stably fixed on the surface of the leather;
A printing step (S4) of printing various colors or patterns on the surface of the leather so as to meet the demands of different users;
A surface coating step (S5) of coating the surface of the leather to prevent color or pattern printed on the surface of the leather from being discolored due to friction or heat that may occur during daily life, or from being lost due to sublimation of the dye;
A heating and pressing step (S6) for short time pressing under conditions of low heat and low pressure so as to improve the fixing property of the printed pattern; Wherein the surface of the leather is printed with a pattern.

The method according to claim 1,
The surface washing step (S1) is a step of removing the moisture and unnecessary components contained in the raw skins of the animal and adhering to the surface of the leather when carrying tanned or processed leather, which is a process of absorbing the emulsion so as to maintain a smooth texture And a 95% solution of ethanol for skin washing, which can be sprayed in a spraying manner so as to remove dust and various foreign substances, is buried in a soft cloth to remove foreign substances.

The method according to claim 1,
The base applying step S2 is a step in which a polyether-based urethane resin having excellent abrasion resistance and chemical resistance and a polyacrylate resin (Resin) capable of improving the workability by improving viscosity are mixed at a weight ratio of 85 To 92: 8 to 15, and then coating the leather surface with a thickness of 7 to 40 탆 using a roll coating or a spray coating method.

The method according to claim 1,
In the drying step (S3), the leather coated with the mixture is allowed to stand at room temperature for 3 to 5 hours or so as to be able to stably fix the ultrafine porous film formed by the mixture of the polyether-based urethane resin and the polyacrylate- Wherein the drying is carried out at a temperature of 90 to 120 DEG C for 3 to 4 seconds through a heater.

The method according to claim 1,
The printing step (S4) uses LED UV flatbed printers that spray the colors or patterns specified by the operator on the surface of soft leather and then dry them with LED lamps, so that various colors and patterns that can meet different users' Wherein the color and brightness of the pattern printed on the surface of the leather by the LED UV flat panel printer and the thickness of the projected ink can be adjusted.

The method according to claim 1,
In the surface coating step S5, the polyether-based urethane resin and the polyether-based urethane resin excellent in stability against oxygen and excellent in chemical resistance and aging resistance are provided on the surface of the leather printed with a certain color and pattern by the printing step S4 An isocyanate crosslinking agent capable of improving mechanical strength and chemical stability such as hardness and elasticity is mixed in an amount of 8 to 10:15 to 20 and then a roll coating or a spray coating method is used to form a film having a thickness of 7 to 40 μm Of the surface of the leather.

The method according to claim 1,
The heating and pressing step (S6) is performed by using a heating press at a temperature of 80 to 120 DEG C and a pressure of 3 to 5 kg for 3 to 4 seconds so as to further improve the fixability and stability of the pattern printed on the surface of leather Wherein the pattern is printed on the surface of the leather.

A leather glove made using the method of patterning a leather surface, characterized in that it is manufactured by the method of any one of claims 1 to 7.