KR20000012374A - Transfer paper - Google Patents

Abstract

PURPOSE: A transfer paper is provided to improve the abrasion resistance, the scratch resistance and the solvent resistance and not to need the surface processing process after painting. CONSTITUTION: The transfer paper is composed of: a particular surface processing layer(110) including one of the mixture of polyester polyol and hydroxyl denatured vinyl chloride copolymer or the mixture of polyacrylate and cellulose nitrate, at least more than one material selected from polypropylene wax, polyethylene wax or fluoric wax, and the hardening agent of polyisocyanurate; a protection processing layer(120); a pattern printing layer(130); a primer layer(140); and the particular surface processing layer(110) forming the hardened film of high density to improve the abrasion resistance, the scratch resistance and the solvent resistance.

Description

Transfer paper {transfer paper}

The present invention relates to a transfer paper, and more particularly, to abrasion resistance, scratch resistance, solvent resistance, chemical resistance, weather resistance, heat resistance, bending resistance is improved, a separate post-processing transfer paper and the need for post-transfer surface treatment process and its It relates to a manufacturing method.

Molded products used for building materials and industrial materials, such as synthetic resin moldings (window materials, panels, molding materials, ceiling materials, etc.), metal moldings (steel plates, aluminum chassis, etc.), synthetic wood moldings (PB, MDF, etc.), As the use of gypsum board products increases and becomes more advanced, various performances such as wear resistance, scratch resistance, solvent resistance, chemical resistance, weather resistance, heat resistance, flex resistance, etc. There is a demand for this, and for this purpose, a transfer printing method of relatively simple patterning is widely used.

The transfer printing method described above generally laminates a release layer, a pattern printing layer, and an adhesive layer sequentially on a surface of a transfer paper made of paper or a synthetic resin film, or if necessary, further forms a print protective layer between the release layer and the pattern printing layer. A printing support layer is formed between the printing layer and the adhesive layer to be further laminated to manufacture the transfer paper, and the adhesive layer is fused to the surface of the transfer body by welding the transfer limb to the surface of the workpiece to be transferred, and then separating and removing the transfer paper. It is configured in a way.

There is a transfer paper used in the above transfer printing method and a conventional method of manufacturing the same, and there is a transfer paper having a protective layer located on the surface of the printing layer to prevent bleeding, cracking, shaking, twisting, etc. of the printed pattern, Besides, it is weak in special performance such as abrasion resistance, scratch resistance, solvent resistance, chemical resistance, pollution resistance, heat resistance, weather resistance, etc. ), The coating layer is easily cracked or dropped from the transfer source, which implies that the defect is increased during the transfer operation.

In order to solve the above problems, the protective layer made of the UV-curable paint in the "UV transfer paper coated with the UV-curable paint layer" shown in Korean Patent Publication No. 153038 is excellent in the above-described special performance, but has no affinity printing. In order to improve adhesion with layers, there are process troubles that require separate corona treatment and prima treatment, and the choice of consumers is narrowed due to the high cost of installation, maintenance, and raw material prices. The use of this low raw material has the disadvantage that the transfer of the curved portion is not easy. In addition, there is a problem in that an additional additional process is added, such as a surface treatment agent, a protective cleaner, a transparent paint, etc., after being transferred to the transfer target to protect the surface of the printed layer.

Accordingly, the present invention has been made to solve the above problems, after applying a special surface treatment layer, a protective layer, a pattern printing layer, a prima layer to the transfer paper by lamination printing in a continuous process of gravure printing method, It is an object of the present invention to provide a transfer paper that is treated in a heat of 90 ° C to 250 ° C and is beautiful in appearance, has good performance, and does not require additional post-processing.

1-lamination structure of the transfer paper according to the present invention.

Figure 2-Schematic diagram showing a method of manufacturing a transfer paper according to the present invention.

<Description of Symbols for Major Parts of Drawings>

100: transcription base 110: special surface treatment layer

120: protective layer 130: pattern printing layer

140: prima layer 150: the subject

200: first roller 210: first mesh roller

220: first dryer 230: second mesh roller

240: second dryer 250: print roller

260: third dryer 270: third mesh roller

280: 4th dryer 290: 2nd roller

The present invention for achieving the above object, in the transfer paper is a special surface treatment layer, a protective treatment layer, a pattern printing layer and a prima layer are sequentially laminated in a continuous process of the gravure printing method on the transfer paper, the special The surface treatment layer is one of a mixture of a derived polyester polyol and a hydroxyl-modified vinyl chloride copolymer, or a mixture of polyacrylate and nitro cellulose, which is highly reactive at low temperatures and has good crosslinking density, adhesion and bonding strength; At least one material selected from polypropylene wax, polyethylene wax or fluorine wax; And the transfer sheet formed from the polymer containing polyisocyanate which is a hardening | curing agent is made into a technical summary.

Here, the special surface treatment layer is preferably formed further comprising a modified silicon, ultraviolet absorber, antioxidant, anti-locking agent and an organic solvent.

In addition, the protective layer is preferably formed by mixing at least one material selected from acrylic resin or cellulose acetate butyrate resin, a vinyl chloride copolymer, a stabilizer and an organic solvent.

In addition, the pattern printing layer is a pigment having a weather resistance of 7 to 8 grades or more; And a material selected from a mixture of two or more selected from vinyl chloride copolymer, cellulose acetate butyrate and acrylic resin, or a mixture of nitro cellulose and maleic resin.

On the other hand, the pattern printing layer is preferably formed by further comprising an ultraviolet absorber, antioxidant, stabilizer, anti-locking agent, matting agent, organic solvent.

The prima layer may also be selected from polyester resins, polyurethane resins, ethylene vinyl acetate resins and mixtures of epoxy resins or mixtures of polyester resins and vinyl chloride copolymers or mixtures of polyamide resins and nitrocellulose. With one substance; Silica; And, it is preferably formed of a polymer containing an organic solvent.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a laminated structure of a transfer paper according to the present invention, Figure 2 is a schematic diagram showing a manufacturing method of a transfer paper according to the present invention.

As shown, the transfer paper according to the present invention largely as the transfer paper 100, the special surface treatment layer 110, the protective treatment layer 120, the pattern printing layer 130 and the prima layer 140 It is composed.

First, the transfer sheet 100 will be described. The transfer paper 100 is a heat-resistant synthetic resin film, a known polyester film or a feeder, polyvinyl chloride film, and other synthetic resin film, if necessary. And the transfer paper 100 is affixed to the first roller 200. The special surface treatment layer 110 is applied to a predetermined thickness while the transfer paper 100 collected on the first roller 200 passes through the first mesh roller 210.

The special surface treatment layer 110 is a surface layer that appears after peeling and removing the transfer paper 100. The polyester polyol 20 is derived from a resin having excellent reactivity at a relatively low temperature and having good crosslinking density, adhesion, and bonding strength with a curing agent. % By weight, 5% by weight of hydroxyl-modified vinyl chloride coplier solution, 2% by weight of polypropylene wax, 2% by weight of hydroxyl-modified silicone, 0.5% by weight of UV absorber, 0.5% by weight of ethyl acetate: methyl isobutyl ketone: 10 g / m ² was added to the surface of the transfer paper 100 using a solution of 30% by weight of a polyisocyanate as a curing agent in a main body formed by mixing 40% by weight of a mixed solvent having a toluene ratio of 1: 1: 1. The special surface treatment layer 110 is formed by applying to a degree. Here, poly acrylate may be used instead of the derived polyester polyol, and nitro cellulose may be used instead of hydroxyl-modified vinyl chloride coplier, and polyethylene wax or fluorine wax may be used instead of the polypropylene wax. The special surface treatment layer 110 exhibits a similar function even when using.

Then, the transfer paper 100 on which the special surface treatment layer 110 is formed while passing through the first mesh roller 210 is dried in a heat of about 40 ° C. to 100 ° C. while passing through the first dryer 220, and a special surface treatment is performed. Layer 110 is formed stably. In this case, the special surface treatment layer 110 forms a hard film made of high density, and its strength is good, so it is excellent in wear resistance, scratch resistance, solvent resistance, and excellent chemical resistance, pollution resistance, heat resistance, and weather resistance. It prevents the surface from being easily damaged or scratched by the impact, and protects the transfer paper itself so that it can be used for a long time without being easily peeled off even if the surface is contaminated using a volatile solvent.

The transfer paper 100 on which the special surface treatment layer 110 is applied and dried is automatically transferred to the second mesh roller 230 so that the protective layer 120 is formed on the upper surface of the special surface treatment layer 110. Is applied.

The protective layer 120 is 18% by weight of acrylic resin, 11% by weight of vinyl chloride coplier, 1% by weight of stabilizer 70% by weight of a composite solvent mixed so that the ratio of MEK: methyl isobutyl ketone 8: 2 The mixture is heated to 50 ° C. to 60 ° C. and then stirred to form a stirred composition on the upper surface of the special surface treatment layer 110. The cellulose acetate butylate resin may be used instead of the acrylic resin used above, or the acrylic resin and the cellulose acetate butylate resin may be mixed in an appropriate weight ratio.

Then, the transfer paper 100 coated with the protective layer 120 is dried with heat of 40 ° C. to 80 ° C. while passing through the second dryer 240, and the protective layer 120 is dried and stabilized at the same time. Here, the protective layer 120 is applied between the special surface treatment layer 110 and the pattern printing layer 130 to be described later to improve the transferability when printing the pattern, the pattern printing layer according to the heat compression during the transfer operation ( 130) Protects the pattern printing layer by preventing distortion and shaking of the pattern due to shrinkage and expansion deformation of the 130). ) Is easily peeled off from the special surface treatment layer (110).

The transfer paper 100 passed through the second dryer 240 is automatically transferred to the pattern printing layer 130 is formed while passing through the print roller 250.

The pattern printing layer 130 is stabilized in 9% by weight of pigments having a weather resistance of 7 to 8 grades, 10% by weight of vinyl chloride coplier, 3% by weight of acrylic resin, 0.5% by weight of UV absorber, 0.5% by weight of antioxidant. Anti-King Agent: 7 wt% of the composite additive mixed in a ratio of 1: 2: 3, and 70 wt% of the mixed solvent in which the ratio of MEK: methyl isobutyl ketone: toluene was mixed in a 1: 1: 1 ratio. Mixed ink composition is formed by printing on the upper surface of the protective layer 120. Here, instead of the vinyl chloride copolymer and acrylic resin, nitro cellulose or mare resin may be mixed or cellulose acetate butylate resin may be mixed with the vinyl chloride copolymer and acrylic resin, and similar performance may be obtained. .

Then, the transfer paper 100 having the pattern printing layer 130 formed on the upper surface of the protective layer 120 is automatically moved to the third dryer 260 to be dried in a heat of 40 ° C. to 80 ° C. to print the pattern printing layer 130. Stabilize. The pattern printing layer 130 formed by the above process is particularly good in heat resistance and weather resistance.

The transfer paper 100 passed through the third dryer 260 is automatically transferred to the third mesh roller 270 to apply the prima layer 140.

The primer layer 140 is mixed with 20% by weight of polyester resin, 10% by weight of epoxy resin and 5% by weight of silica, and 65% by weight of the mixed solvent mixed so that the ratio of MEK: toluene is 7: 3. It is formed by the method of apply | coating the composition stirred while heating at 50 degreeC-60 degreeC on the upper surface of the said pattern-printing layer 130. The polyester resin may be composed of polyurethane resin and ethylene vinyl acetate resin instead of the polyester resin, and may be a mixture of polyester resin and vinyl chloride coplemer or a mixture of polyamide resin and nitro cellulose instead of polyester resin and epoxy resin. It may consist of.

The transfer base 100 to which the prima layer 140 is applied is dried and stabilized by heat of 40 ° C. to 100 ° C. while passing through the fourth dryer 280. In this case, the prima layer 140 is directly welded to the surface of the transfer member 150 to be fused to the transfer target 150 by heat compression, and thus does not affect the expansion deformation of the transfer target 150 and has good adhesion. It has good aging resistance and maintains adhesion function even after a long time. By passing through the above process, the transfer paper according to the present invention is completed.

In addition, the transfer paper 100 coated with the prima layer 140 passing through the fourth dryer 280 is automatically wound on the second roller 290.

The finished transfer paper is welded to the surface of the transfer member 150 and rolled by pressing with a roller heated at 90 ° C to 250 ° C, or rolled while pressing with a rubber or silicon roller through a thermal heating device to transfer the transfer member 150. Transferring to the surface completes the transfer to the surface of the transfer object 150.

The operation effect by the above configuration is as described later.

First, the user takes the transfer sheet 100 on the first roller 200. The transfer paper 100 taken on the first roller 200 is automatically transferred so that the special surface treatment layer 110 is applied to the upper surface of the transfer paper 100 by a predetermined thickness in the first mesh roller 210. The special surface treatment layer 110 is dried and stabilized with a heat of 40 ° C. to 100 ° C. while passing through the first dryer 220 in a continuous process.

Next, transferred to the second mesh roller 230, the protective layer 120 is applied to the upper surface of the special surface treatment layer 110 to a predetermined thickness, and passes through a second dryer 240 with a heat of 40 ° C to 80 ° C. To dry.

The transfer paper 100 passed through the second dryer 240 is transferred to the print roller 250 in a continuous process, and the pattern printing layer 130 is printed on the print roller 250. Then, the pattern printing layer 130 is dried and stabilized at a temperature of 40 ° C. to 80 ° C. while passing through the third dryer 260.

The transfer paper 100 passed through the third dryer 260 is automatically transferred to the third mesh roller 270 so that the prima layer 140 is applied to a predetermined thickness. And it is dried by the heat of 40 degreeC-100 degreeC, passing through the 4th dryer 280.

Passing through the fourth dryer 280, the transfer paper of the present invention is completed.

According to the present invention, the special surface treatment layer forms a hardened film made of high density, so its strength is high, so it is excellent in wear resistance, scratch resistance, solvent resistance, chemical resistance, pollution resistance, heat resistance and weather resistance, and external The surface is not easily damaged by the impact, and the durability is improved to enable long-term use.

Claims (6)

In a transfer paper in which a special surface treatment layer, a protective treatment layer, a pattern printing layer, and a prima layer are sequentially laminated on a transfer paper in a gravure printing continuous process, The special surface treatment layer, One of a mixture of a derived polyester polyol and a hydroxyl-modified vinyl chloride coplier or a mixture of polyacrylate and nitro cellulose, which is highly reactive at low temperatures and has good crosslinking density and adhesion and good adhesion; At least one material selected from polypropylene wax, polyethylene wax or fluorine wax; And, And a polyisocyanate as a curing agent. The transfer paper according to claim 1, wherein the special surface treatment layer further comprises a modified silicon, an ultraviolet absorber, an antioxidant, an antilocking agent, and an organic solvent. The transfer paper according to claim 1, wherein the protective layer is formed by mixing at least one material selected from acrylic resin or cellulose acetate butylate resin, vinyl chloride coplier, stabilizer and organic solvent. According to claim 1 or 3, wherein the pattern printing layer, Pigments having a weather resistance of 7 to 8 grades or more; And a material selected from a mixture of two or more selected from vinyl chloride coplier, cellulose acetate butyrate, and acrylic resin, or a mixture of nitro cellulose and maleic resin. The transfer sheet according to claim 4, wherein the pattern printing layer further comprises an ultraviolet absorber, an antioxidant, a stabilizer, an antilocking agent, a quencher, and an organic solvent. The method of claim 1 or 3, wherein the prima layer, At least one selected from polyester resins, polyurethane resins, ethylene vinyl acetate resins and mixtures of epoxy resins or mixtures of polyester resins and vinyl chloride copolymers or mixtures of polyamide resins and nitro celluloses; Silica; And, Transfer paper, characterized in that formed from a polymer containing an organic solvent.