KR20090083142A - Ink for sublimation transfer and method for printing thereof - Google Patents

Abstract

An ink for sublimation transfer is provided to perform sublimation transfer of the desired design regardless of objects such as natural, synthesized and artificial fibers, to prevent stimulus to the skin of wearer, and to maintain color clearly. An ink for release coated on a transfer paper is obtained by mixing petroleum resin 50~300 parts by weight, wax 50~400 parts by weight and EVA(ethylene vinyl acetate) 50~450 parts by weight and dissolving the mixture in solvent. An ink for maintaining color coated on a transfer paper is obtained by mixing petroleum resin 30~300 parts by weight, wax 20~150 parts by weight, phenolic resin 1~10 parts by weight, EVA(ethylene vinyl acetate) 30~300 parts by weight, a mixture 1~10 parts by weight of alum and glycerine and dissolving the mixture in solvent.

Description

Ink for sublimation transfer and sublimation transfer method using same {Ink For Sublimation Transfer And Method For Printing Thereof}

The present invention improves the quality of designs printed on natural and artificial fibers such as clothes, fabrics, and fabrics, and the sublimation transfer ink capable of maintaining vivid color without discoloration even after repeated washing, and the transfer paper and sublimation transfer method for sublimation transfer using the same. It is about.

In general, the transfer method is widely used to print a variety of figures, logos and designs, such as clothing, cloth, fabric made of natural fibers or artificial fibers.

The transfer method means that the transfer paper on which various figures, logos and designs are printed is brought into close contact with the target object to be transferred, and applied to the target object as it is printed on the transfer paper by applying high temperature and pressure.

Such transfer methods include Korean Patent Application Laid-Open No. 10-1998-0074787 "Transfer Paper Using Polyethylene Sheet and Transfer Method Using the Same", and Korean Patent Application Publication No. 10-2000-0054601 "Design based on the base material using the printed paper. Of "transfer method", Korean Patent Registration No. 10-0758935 "thermal transfer sheet and a transfer method using the same" and the like have been proposed.

The Republic of Korea Patent Application Publication No. 10-1998-0074787, a pattern of the desired pattern or text printed using a screen printing or offset printing method using a polyurethane resin on a base film layer made of polyethylene with an appropriate thickness After drying or applying an adhesive to the upper part of the printed pattern and dried to prepare a transfer paper, the transfer paper with the pattern printed on the fabric is placed, and pressed for 5-7 seconds while heating to 150 ~ 170 ℃ by heat press After making it, the method of peeling a transfer paper from a fabric is proposed.

However, the transfer method has a problem in that natural fibers that do not contain a material that can penetrate the ink do not appear desired patterns or letters, or the color is easily discolored due to repeated washing and the design itself is separated.

Proposed methods to solve this problem are the Republic of Korea Patent Publication No. 10-2000-0054601 and Republic of Korea Patent No. 10-0758935.

The Republic of Korea Patent Publication No. 10-2000-0054601 is formed by spraying a liquid melted polyethylene on the surface of the base material, such as clothing, plastic, wood, metal, etc. to form an adhesive layer, the design is formed with an aqueous or oily pigment on the adhesive layer It is a method of making a transfer paper adhere | attach mutually and heat-transfer printing.

The Republic of Korea Patent No. 10-0758935 is a resin comprising a base film layer, 20 to 40 parts by weight of microwax, 20 to 40 parts by weight of EVA resin, 10 to 30 parts by weight of the adhesive enhancer, 10 to 30 parts by weight of the adhesive and A design transfer sheet comprising a thermal transfer coating layer formed of an adhesive composition, a design printing layer, and a fine powder polymer resin layer formed on the design printing layer, and the design transfer sheet are manufactured by using a heat press on a transfer member. It is the design transfer method which thermally compresses and transfers at the temperature of -180 degreeC.

In order to bond various figures, logos, and designs to a transfer body, the two conventional techniques are melted polyethylene in a solvent and sprayed with liquid to form an adhesive layer, or a thermal transfer coating layer formed of a resin and an adhesive composition and a fine powder of a fine powder. A method of forming a stratum layer and thermally compressing the object to be transferred using a heat press is used.

However, in the prior art as described above, by spray coating the polyethylene or polyurethane resin onto the fiber in advance, the number of processes increases as the number of processes increases, and the polyethylene or polyurethane is coated to the unnecessary portion, so that contamination may easily occur. Since the polymer resin layer of the fine powder is applied closest to the object to be transferred, there is a problem of irritating the skin when the user wears the object to be transferred.

The present invention is to solve the above problems, by using a sublimation transfer method to print a variety of shapes, logos and designs on the blend, artificial textile fabric, as well as sublimation transfer or sublimation transfer for a long time even color An object of the present invention is to provide a sublimation transfer ink, a sublimation transfer paper, and a sublimation transfer method using the same, which can be used for natural fibers or fabrics that are not retained.

The present invention adheres to the object to be sublimated transfer, the release paper used to transfer a variety of designs and the like to be separated after the sublimation transfer, and the ink for release, and to maintain the color of the various sublimated transfer design not to be discolored It is an object of the present invention to provide a sublimation transfer ink in which color is maintained without being discolored even after repeated washing by using a color retaining ink that plays a role.

It is also an object of the present invention to propose a sublimation transfer paper on which a release ink and a color retention ink are applied and a design is printed, and a sublimation transfer method using the transfer paper.

The present invention to achieve the above object,

After the sublimation transfer to create a release ink for separating the transfer paper from the object well, and a color retaining ink to maintain the color of the transferred design after the sublimation transfer well, the release ink made in the above is formed by applying A sublimation transfer paper comprising a release ink layer, a color retaining ink layer formed by applying a color retaining ink thereon, and a design layer on which designs such as various figures or drawings are printed, and the sublimation transfer paper to be transferred A sublimation transfer method is proposed in which a sublimation transfer method is carried out in close contact with a target object by applying heat and pressure.

The release ink is a mixture of 50 to 300 parts by weight of petroleum resin, 50 to 400 parts by weight of wax, and 50 to 450 parts by weight of EVA (Ethylene Vinyl Acetate), by dissolving in a solvent such as xylene, benzene or toluene. It is a composition which consists of. In particular, the most ideal weight ratio of the petroleum resin and the wax is characterized in that 1: 2.

The color maintenance ink is 30 to 300 parts by weight of petroleum resin, 20 to 150 parts by weight of wax, 1 to 10 parts by weight of phenol resin, 30 to 300 parts by weight of EVA (Ethylene Vinyl Acetate), a mixture of alum and glycerin It mixes in the ratio of this 4-10 weight part is a composition which melt | dissolves in solvents, such as xylene, benzene, and toluene. The mixture of alum and glycerin is made by mixing alum and glycerin in a weight ratio of 1: 1 and boiling in boiling water.

Sublimation transfer paper is coated on any paper, and after the sublimation transfer, applying and drying the release ink that allows the paper to separate well to form a release ink layer, the color retaining to keep the color clear and long thereon A printing ink or a sublimation ink, a TOP ink, and a light-resistant ink formed by mixing a sublimation ink and a TOP ink thereon by applying and drying the ink for forming a color retention ink layer. It consists of a design layer printed using a mixed printing ink.

In addition, after the design layer is printed, the sublimation transfer paper may be made by cutting out a blank portion without a design along an outline of the design layer.

The method of transferring using the above-mentioned release ink, color retaining ink, and sublimation transfer paper is as follows.

Applying a release ink on an arbitrary paper, drying the coated release ink, applying a color retention ink on the release ink layer produced through the above process, and maintaining the applied color. Drying the ink, printing a design on the color retention ink layer generated through the above process, cutting a margin portion along an outline of the printed design layer, and making a transfer paper for sublimation transfer; After the sublimation transfer paper is brought into close contact with the target object, heat and pressure are applied (generally, by hot press processing) to allow the design to be sublimated to the target object.

The present invention having the configuration as described above,

Regardless of the kind of sublimation transfer targets such as natural, blended, and artificial fibers, the desired design can be sublimated and transferred, and the color of the sublimated transfer design is kept clear, and there is an effect of not discoloring even after repeated washing.

In addition, since a separate adhesive or the like is not used for sublimation transfer to natural fibers such as cotton, the sublimation transfer process is simplified, and when used in clothing or the like, there is an advantage of not irritating the skin of the wearer.

The sublimation transfer ink of the present invention includes a release ink that allows the transfer paper to be separated from the target object after the sublimation transfer, and a color maintenance ink that maintains the color of the transferred design after the sublimation transfer.

The release ink serves to separate the transfer paper, which is used when transferring to an object such as fiber, from the object after the sublimation transfer is completed.

The release ink is composed of wax, petroleum resin, EVA (Ethylene Vinyl Acetate), and a certain amount of xylene is mixed, 50 to 400 parts by weight of wax, 50 to 300 parts by weight of petroleum resin, 50 to 450 parts by weight of EVA The mixed thing is a composition which melt | dissolves in solvents, such as xylene, benzene, and toluene.

The wax is a component that releases the transfer paper from the target object after the sublimation transfer, and when the content of the wax in the release ink is less than 50 parts by weight, the transfer paper is contacted with the target object by sublimation transfer by heat and pressure, and then the transfer paper is removed from the target object. If not separated and the content of the wax is 400 parts by weight or more, the design to be transferred may not be properly printed on the transfer paper, or the color of the design may turn matt after the sublimation transfer.

The petroleum resin is a component that helps the design printed on the transfer paper penetrates into the target object during the sublimation transfer process, and when the content of the petroleum resin is less than 50 parts by weight in the release ink, the sublimation transfer design is difficult. When the content of the petroleum resin is easily separated from the target object and the content of the petroleum resin is 300 parts by weight or more, there is a problem that the target object after the sublimation transfer becomes hard.

The EVA (Ethylene Vinyl Acetate, ethylene vinyl acetate) is a sticking material for fixing the viscosity of the ink, when the content is less than 50 parts by weight in the release ink, the color of the design after sublimation transfer may not be vivid or weak. When the content of EVA is 450 parts by weight or more, the sublimated transferred portion of the target object may become sticky after sublimation transfer.

Solvents such as xylene, benzene and toluene are used to dissolve the petroleum resin, wax, EVA, and the like, and can control the concentration of the release ink. In the present invention, xylene is used, and the weight part of xylene is suitably about 400 to 800, depending on the weight part of the petroleum resin, wax, and EVA contained in the release ink, but may be freely added or decreased depending on the concentration of the ink to be prepared. .

The most ideal mixing weight part of the mold release ink produced by mixing each said component is as follows. Assuming that the release ink is 1000 parts by weight, wax is 218 parts by weight, petroleum resin is 100 parts by weight, EVA is 156 parts by weight, and xylene is 526 parts by weight.

The release ink may be made by mixing the wax, petroleum resin, EVA, and xylene with a hot water bath in hot water at about 100 ° C. for about 2 hours.

The color retaining ink serves to prevent the color of the design of the sublimation transfer to the object of the sublimation transfer, such as fibers, so as not to be discolored even after repeated washing to increase the color fastness, and to be separated from the fiber.

The color retaining ink is composed of a certain amount of petroleum resin, wax, EVA (Ethylene Vinyl Acetate), alum and glycerin mixture, phenol resin, and xylene, 30 to 300 parts by weight of petroleum resin, 20 to 150 weight of wax It is a composition which melt | dissolves in a solvent, such as xylene, benzene, and toluene, which mixes 30-300 weight part of EVA, the mixture of alum and glycerin 1-10 weight part, and the phenol resin in 1-10 weight part. .

The mixture of alum and glycerin, which is not contained in the release ink, serves as a core of the present invention, which holds the dye component included in the design of the weakly acidic property of the alum, thereby preventing the color from fading after sublimation transfer. . That is, it acts as a binder that binds the dye to the fiber so that it does not fall off after being adsorbed well.

The alum is dissolved in a solvent such as petroleum resin, wax, EVA, and the like and is not mixed. In order to solve this problem, in the present invention, glycerin is used. Mix the alum and glycerin in a weight ratio of 1: 1 and stir in boiling water or hot water at about 100 ° C. for about 2 to 3 hours. After the above process, the alum is dissolved in glycerin and turned into a liquid, and the alum and the liquid mixture of glycerin are mixed in a mixture of petroleum resin, wax, EVA, phenol resin, and xylene.

The phenolic resin is a component that serves to prevent the color of the sublimation transfer design to be discolored by repeated washing to enhance the color fastness, when 10 parts by weight or more is contained, the target of the sublimation transfer becomes hard. If not contained at all, the color fastness will fall.

As in the release ink, the petroleum resin plays a role in making the design printed on the transfer paper in the sublimation transfer process well penetrate the target object, and when the petroleum resin content is less than 30 parts by weight, the penetration does not occur so that the sublimation is transferred. If the design is easy to fall out of the object and contains 300 parts by weight or more, the object after sublimation transfer can be hardened.

The wax is a component that allows the transfer paper to be separated from the target object after sublimation transfer as in the release ink. When the wax content is less than 20 parts by weight, the transfer paper is not separated from the target object after completion of the sublimation transfer. If it contains more than one, the design to be transferred may not be properly printed on the transfer paper, or the color of the design after the sublimation transfer may turn matte.

The EVA (Ethylene Vinyl Acetate) is a sticky substance that fixes the viscosity of the ink as in the release ink, and when the content of EVA is less than 30 parts by weight, the color of the design after sublimation transfer may not be vivid or weak. In the case where 300 parts by weight or more is contained, the sublimed transferred portion of the target object may become sticky after the sublimation transfer.

The xylene, benzene, toluene, and the like solvent is used to dissolve the petroleum resin, wax, EVA and the like, it is possible to adjust the concentration of the color maintenance ink. In the present invention, xylene is used, and the weight part of xylene is suitably about 400 to 800 parts by weight based on the weight parts of petroleum resin, wax, EVA, and phenol resin contained in the color maintenance ink, but the concentration of ink to be prepared It can be freely added or subtracted accordingly.

The most ideal mixing weight part of the color retention ink produced by mixing the above components is as follows. Assuming that the color retaining ink is 1000 parts by weight, 205 parts by weight of petroleum resin, 117 parts by weight of EVA, 65 parts by weight of wax, 4 parts by weight of a mixture of alum and glycerin, 3 parts by weight of phenol resin, Xylene consists of 606 parts by weight.

The color retaining ink may be made by mixing the wax, petroleum resin, EVA, and xylene with hot water at about 100 ° C. for about 2 hours in the same manner as the release ink.

In order to maintain the color of the design after the sublimation transfer more clearly for a long time, when printing a design such as various figures or drawings on the transfer paper, the printing ink or sublimation ink is a mixture of the sublimation ink and the top ink A printing ink formed by mixing a top ink and a light resistant ink is used. The printing ink for each color made in this way reacts with the weak acidity of the alum included in the color maintenance ink to maintain the original color without discoloration even after repeated washing, thereby improving color fastness.

The sublimation ink contains a urethane resin, which has good adhesion and discoloration characteristics. Assuming that the sublimation ink is 100 parts by weight, the urethane resin is 60 parts by weight, the dye for each color is 35 parts by weight, It is an ink which consists of 5 weight part of plasticizers. Blue, red, yellow and black inks are mainly used.

The top ink contains a urethane resin, and thus has good adhesive strength. Assuming that the top ink is 100 parts by weight, the urethane resin is 50 parts by weight and the pigment for each color is 35 parts by weight. , Ink containing 10 parts by weight of phenol resin and 5 parts by weight of plasticizer. Blue, red, yellow and black inks are mainly used.

To express the color of the design, each color of the sublimation ink and each color of the top ink are mixed. Blue is a mixture of blue sublimation ink and blue top ink in a ratio of 1: 1, and red is a mixture of red sublimation ink, red top ink and light-resistant red ink in a ratio of 2: 1: 1, respectively. Yellow is made by mixing yellow sublimation ink and yellow top ink in a ratio of 1: 1, and black is produced by mixing black sublimation ink and black top ink in a ratio of 1: 1. The light-resistant red ink used to make the red color serves to prevent discoloration when a portion coated with ink containing the color is exposed to infrared rays or ultraviolet rays included in sunlight.

Referring to the process of making a sublimation transfer paper using the ink described above as follows.

A transfer paper for sublimation transfer is a medium used to print a design such as any of a variety of figures or drawings, and to transfer the printed design to a target object.

The transfer paper for sublimation transfer is applied on the paper 10, the release ink which allows the transfer paper to separate well after sublimation transfer, and dried to form a release ink layer 20, the color on the release ink layer 20 Applying and drying the color retaining ink to keep the vivid and long lasting to form a color retaining ink layer 30, the design of various figures or drawings that you want to sublimate transfer on the color retaining ink layer 30 It is made by forming a design layer 40 for printing using a printing ink formed by mixing a sublimation ink and a top ink or a printing ink obtained by mixing a sublimation ink with a top ink and a light resistant ink. 1 is a view showing a cross-sectional view of the transfer paper for sublimation transfer made through the above process.

As a method of drying the coated release ink and color retaining ink, it is a process of cooling after thermal drying. In detail, after applying the release ink, and dried for about 10 to 30 seconds at a temperature of 70 ~ 100 ℃, and passed through the cooling device for 3 to 10 seconds to dry the applied ink. Even after apply | coating the said color maintenance ink, it dries in the same way as above.

FIG. 2A is a view showing a sublimation transfer transfer paper of the present invention in a state where a release ink layer 20, a color retaining ink layer 30, and a design layer 40 are formed, and FIG. 2B is a design in the state of FIG. 2A. The drawing shows a state in which the release ink layer 20, the color retaining ink layer 30, and the paper 10 that exist in the margin portion where the design is not printed along the outline of the layer 40 are cut out.

In the present invention, after the design layer 40 is printed on the color retaining ink layer 30, the Thompson process is used as a method of cutting out the margin portion along the outline of the design layer 40. The reason for cutting out the blank portion is that when the release ink layer 20 and the color retaining ink layer 30 which are unnecessaryly formed in a portion without a design are sublimed and transferred to a transfer object, they are easily contaminated and look aesthetically. Because there is a bad problem.

The method of sublimation transfer using the above-mentioned release ink, color retaining ink, and sublimation transfer transfer paper will be described with reference to FIG.

Prepare an arbitrary paper to be used as a sublimation transfer paper (S100), apply a release ink that allows the transfer paper to be separated from the object after the sublimation transfer well on the arbitrary paper (S101), and dried the applied release ink ( S102) A mold release ink layer is formed. The method of drying the coated release ink is performed by thermal drying at a temperature of 70 to 100 ° C. for about 10 to 30 seconds (S102-1), and then cooling it through a cooling device for 3 to 10 seconds (S102-2). .

A color retaining ink is applied to the release ink layer formed above to maintain the color of the design well after sublimation transfer (S103), and the applied color retaining ink is dried (S104) to form a color retaining ink layer. . The method of drying the applied color maintaining ink layer is dried for about 10 to 30 seconds at a temperature of 70 ~ 100 ℃ (S104-1), by cooling through a cooling device for 3 to 10 seconds (S104-2) )

A design layer is formed by printing a design such as various figures or drawings to be sublimated onto the formed color maintaining ink layer (S105). When printing the design, offset printing can generally be used.

After the design layer is printed, the margin portion is cut along the outline of the printed design layer to make a sublimation transfer paper (S106).

Sublimation transfer is completed by placing the sublimation transfer paper for sublimation transfer in close contact with the object to be sublimated and transferred, and then applying heat and pressure to allow the design to be sublimated and transferred (S107). As a method of applying heat and pressure when sublimating and transferring the target object, a heat press process is generally used, and at a temperature of about 160 to 170 ° C., it is ideal to apply a pressure about 7 to 12 seconds.

In the above, specific preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention attached to the claims. will be.

1 is a cross-sectional view of a sublimation transfer paper according to the present invention.

2A is a view showing a state in which a design is printed on a sublimation transfer paper according to the present invention.

2B is a view showing a state in which the release ink layer and the color retaining ink layer left in portions other than the design of the sublimation transfer paper according to the present invention are removed.

3 is a view showing a sublimation transfer process according to the present invention.

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

10 paper 20 release ink layer

30: color retention ink layer 40: design layer

Claims (9)

As a release ink applied to a transfer paper, A releasing ink, wherein the petroleum resin is 50 to 300 parts by weight, wax is 50 to 400 parts by weight, and EVA (Ethylene Vinyl Acetate) is a composition obtained by dissolving a mixture of 50 to 450 parts by weight in a solvent. The method of claim 1, A releasing ink, wherein the weight ratio of the petroleum resin and the wax constituting the releasing ink is 1: 2. As color retaining ink applied to transfer paper, 30 to 300 parts by weight of petroleum resin, 20 to 150 parts by weight of wax, 1 to 10 parts by weight of phenol resin, 30 to 300 parts by weight of EVA (Ethylene Vinyl Acetate), and 1 to 10 parts by weight of a mixture of alum and glycerin It is a composition which melt | dissolves in the solvent which mixed in the ratio, The color maintenance ink characterized by the above-mentioned. The method of claim 3, wherein The alum and glycerin mixture is a color maintenance ink, characterized in that made by mixing the alum and glycerin in a weight ratio of 1: 1 by boiling in boiling water. A sublimation ink layer is formed by applying the release ink of claim 1 onto an arbitrary paper and a color retention ink layer formed by applying the color retention ink of claim 3 on the release ink layer. Transfer paper for transfer. The method of claim 5, On the color retaining ink layer, a design layer printed using a printing ink formed by mixing a sublimation ink and a TOP ink or a printing ink formed by mixing a sublimation ink with a TOP ink and a light-resistant ink is further included. Sublimation transfer paper, characterized in that the transfer paper. The method of claim 6, Sublimation transfer paper, characterized in that the margin cut out along the outline of the design layer. S101 step of applying a release ink on an arbitrary paper, S102 step of drying the coated release ink, S103 step of applying a color maintenance ink on the release ink layer produced by the above process, S104 step of drying the applied color maintenance ink, S105 step of printing the design on the color retention ink layer generated through the above process, Sublimation transfer method comprising a step S107 to be in close contact with the target transfer paper made through the above process to the target object and then processed by a heat press method to the design sublimation transfer. The method of claim 8, The sublimation transfer method further comprises a step S106 between step S105 and step S107, which cuts a margin along the outline of the printed design layer to make a sublimation transfer paper.

Images