KR20010069280A - Method for forming patterns on the fabric by using shrinkage film - Google Patents

Abstract

PURPOSE: A method for forming various patterns on fabric by coating a desired pattern on a heat shrinkable film, adhering to fabric and heat-setting is provided, which makes it possible to be mass-produced in a small space and has the advantage of reducing the cost of production. CONSTITUTION: This pattern forming method comprises the steps of: forming an urethane resin mixture liquid by mixing 0.9 to 1.1% by weight of polyurethane resin, 0.4 to 0.6% by weight of a cross-linking agent and 1.4 to 1.6% by weight of a diluting agent; pouring the urethane resin liquid(17) into a solution vessel(16) placed at the lower part of a pattern coating roller(14) and coating a pattern on the lower surface of a heat shrinkable film(19) by applying pressure of 0.2 to 0.3kg/cm¬2 to a silicon rubber roller(15); adhering the shrinkable film to fabric(24), passing through rollers(20)(21) and maintaining in a heat blast room at 45 to 50deg.C; passing the fabric(13) through a warm vessel at 80 to 100deg.C, drying; and heat-setting by passing through a roller at 140 to 150deg.C.

Description

Method for forming patterns on the fabric by using shrinkage film

The present invention relates to a method for forming a pattern on the fabric using a shrink film, by applying a pattern as a polyurethane resin on the top of the shrink film and adhered to the fabric woven as polyester to pass the hot water heated by the heater As the shrinkage film shrinks, the fabric adhered to the shrinkage film is pulled out without shrinkage so that a bend is formed so that the pattern applied by the polyurethane resin solution is three-dimensionally projected.

In the conventional case, in order to form a pattern on the fabric fabric, the fabric fabric with the release film deposited thereon is passed through a pair of engraved steel plate rollers to be embossed by the heat of the steel plate rollers to form a pattern, or the fabric When weaving or knitting, a fabric is produced by mixing high shrink yarn, and then a pattern is printed on the fabric fabric and the mixed high shrink yarn is shrunk to form a three-dimensional pattern by passing through a chamber heated to a temperature of 150 to 200 ° C. This is known. However, in order to form a pattern by the engraved roller, in order to form a variety of patterns, a large amount of engraved rollers engraved by the pattern must be manufactured, which not only requires a lot of manufacturing cost but also requires a high temperature heat in the limit of the pattern and the roller to be expressed. It is disadvantageous that it takes a lot of manufacturing cost. Also, to form a three-dimensional pattern by mixing high shrink yarns that are shrunk by heat, high shrink yarns are expensive and in order to shrink the fabric fabric, the temperature of the chamber is 150-200. Since the temperature must be raised to ℃, there is a problem in that expensive costs are required to supply such a temperature to the chamber.

On the other hand, looking at the technical content of the three-dimensional pattern fabric manufacturing method of the known domestic patent publication No. 92-5892, place the fabric on the uneven pattern plate (mould), and separately from the urethane resin on the release paper (silicone resin) The urethane resin film obtained by removing the release paper after grivia coating was prepared and superimposed on the above-described template-like fabric, and the urethane film was melted by heat by pressing with a heating press heated to 150-200 ° C., covering a normal silicon pad. It penetrates into the fabric to obtain a concave-convex three-dimensional pattern, and a cover sheet from which the concave-convex portion is removed from the concave-convex portion of the three-dimensional pattern of the fabric heated by pressing is applied to the nylon resin or EVA (ethyl vinyl alcohol) through the extracting portion. After filling the resin powder into the concave portion, the cover sheet was removed, and the inside of the hot stove at 150 to 200 ° C. As the pattern formation method that melts the resin powder on the surface of the pattern and sets it firmly, the above technical content is that urethane resin with strong elasticity is melted and penetrated into the pattern of the irregularities to improve the resilience of the fabric fabric. When it is restored to its original shape, wrinkles do not occur, and the pattern part plays a role of fixing without deformation. When heat treatment is performed at a temperature of 150 to 200 ° C. with nylon or EVA resin, the welding setting operation can be precisely performed. Although it is possible to obtain a high-quality three-dimensional fabric fabric with paint, which is a complicated and expensive manufacturing process to engrav the pattern to produce the uneven pattern template, the fabric is placed on the uneven pattern template (mold) Next, the number of urethanes obtained after coating the urethane resin on a release paper (silicone resin) separately from this There is a problem that the process of manufacturing the film, and also because it must overlap with the fabric on the template, the overlap cannot be made continuously and must be overlapped only to the width and length of the template, the productivity will be reduced, Since the urethane resin must be pressurized with a press heated to a high temperature of 150 to 200 ° C so that the urethane resin melts and penetrates, the cover sheet is expensive. After the cover surface was filled with nylon resin or EVA resin powder and the cover sheet was removed, the inside of the surface was removed and passed through the hot air furnace at 150 to 200 ° C to allow the resin powder to melt into the pattern surface, and then set to fix. The process is very complicated and there are many installation equipments installed in the manufacturing process. If not made a continuous process, necessary for the production to be produced as stand-stage process, since the high temperature heat of 150 ~ 200 ℃ be used two or more times has a big disadvantage of high production costs.

The present invention devised to solve the conventional problems as described above by using a shrink film to form a simple manufacturing process and manufacturing process cost is cheaper than the existing pattern display method, the pattern is maintained in the long term original and continuous process Its purpose is to enable mass production.

In order to achieve the object of the present invention, a polyurethane resin is mixed in a ratio of 0.9 to 1.1% by weight of polyurethane resin, 0.4 to 0.6% by weight of crosslinking agent, MEK (methyl ethyl ketone) solution or diluent 1.4 to 1.6% by weight of toluene. A first step of forming a mixture;

The pattern is applied to the bottom surface of the shrink film passing between the engraved pattern roller and the silicon rubber roller on the bottom surface of the shrink film that is accommodated in the solution container located below the urethane resin composition liquid pattern roller mixed in the first process. A second step;

The applied shrink film overlaps with the fabric fabric and passes between a pair of pneumatic rollers and silicone rubber rollers, and the shrink film adheres to the fabric fabric by the pressure between the pneumatic rollers and the silicone rubber rollers. A third step of adhering for 14 hours;

A fabric fabric adhered to the shrink film by passing the fabric bonded to the shrink film at a temperature of 80 to 100 ° C. by a heater at a rate of 10 m (meters) per minute to allow the film to shrink by 45 to 55%. A fourth step of pulling the rod to form a bend;

A fifth step of primary drying by sucking the moisture absorbed into the fabric fabric in the fourth step by a vacuum pump about 60 to 70%;

It can be solved by the present invention composed of a sixth process of forming a bend in the fabric by passing through the heater built-in roller of 140 ~ 150 ℃ secondary drying and heat setting (setting) in the fifth process. Will be described in detail below with reference to the accompanying drawings.

1 is a block diagram according to a method for applying a pattern with a urethane resin to the shrink film of the present invention

Figure 2 is a configuration according to the shrinkage method of the fabric adhered to the shrink film of the present invention

Explanation of symbols on the main parts of the drawings

1: hot water bottle 2: heater 3: guide roller

4 supply roller 5 vacuum pump inlet 6 guide roller

7: Heater built-in roller 8: Roller 9: Tape run net belt

DESCRIPTION OF SYMBOLS 10: Rubber roller 11: Roller 12: Horse stand (branch)

13: fabric fabric with shrink film bonded 14: patterned roller

15 rubber roller 16 solution container 17 resin composition

18: shrink film feed roller 19: shrink film

20: pneumatic roller 21: rubber roller 22: winding roller

23: fabric fabric supply roller 24: fabric fabric

Figure 1 shows a configuration diagram according to the method of applying a pattern with a polyurethane resin composition to the shrink film of the present invention, Figure 2 shows a configuration diagram according to the shrinkage method of the fabric adhered to the shrink film of the present invention.

The present invention provides a urethane resin mixture by mixing a solution at a ratio of 0.9 to 1.1% by weight of polyurethane resin, 0.4 to 0.6% by weight of crosslinking agent, and MEK (methyl ethyl ketone) solution or diluent 1.4 to 1.6% by weight of toluene solution. 1 step;

The urethane resin solution 17 mixed in the first process is injected into a solution container 16 located at a lower end of the patterned roller 14 having a fixed height so that the patterned roller 14 is accommodated in the solution container 16. The pattern coating roller 14 is applied to the resin composition liquid 17 by applying a pressure of 0.2 to 0.3 kg / cm 2 to the silicone rubber roller 15 whose height is adjusted while being engaged with the pattern coating roller 14. And the silicone rubber roller 15 are rotated in opposite directions while being in contact with each other, the shrink film 19 supplied from the supply roller 18 is supplied between the two rollers, and the polyurethane resin is rotated by the rotation of the pattern coating roller 14. A second step of allowing the composition liquid 17 to be applied to the shrink film 19,

The coated surface of the coated shrink film 19 and the fabric fabric 24 supplied from the fabric fabric supply roller 23 are bonded to the pneumatic roller 20 and the silicone rubber roller with a pressure of 2 to 3 kg / cm 2. (21) methyl ethyl ketone (MEK) by allowing the shrink film 19 and the fabric fabric to adhere the urethane resin with adhesive force by the pressure of the pneumatic roller, and then storing it in a hot air chamber at 45 to 50 ° C. for at least 14 hours. A third step of volatilizing the crosslinking agent and the urethane resin to harden the fabric and the shrinkage film;

10M (meter) / M (minute) speed of the water in the hot water tank 1 heated to 80 ~ 100 ℃ by the heater 2 to the fabric fabric 13 to which the shrink film 19 is bonded in the third process As the guide film (3, 3) is passed through, the shrink film (19) shrinks 45 to 55%, and at the same time, the fabric fabric of the portion where the shrink film (19) and the fabric fabric are bonded by polyurethane resin is contracted. A fourth process in which the structure of the bonded portion becomes dense, and the remaining portion not adhered by the polyurethane resin is pulled by the shrink film to form a bend;

The fabric fabric 13, which is shrunk and absorbed in the fourth process, is a mesh belt that absorbs moisture from the suction ports 5 and 5 of the vacuum pumps respectively installed at the upper and lower ends of the tape run mesh belt 9 in a continuous process. A fifth step of primary drying by inhaling 60 to 70% through the mesh of 9);

In the fifth process, the fabric fabric 13 primarily dried is guided by a tape run net belt 9 which is an endless belt rotated along the guide rollers 6 and 6 and the rollers 8 and 8 of the setting machine. The fabric 24 is in contact with the heater-embedded roller 7, and the shrink film 19 is in contact with the mesh belt 9 while passing between the tape-run mesh belt 9 and the heater-embedded roller 7 while the tape-run mesh Drying in the belt (9) and the heater built-in roller (7) heated to 140 ~ 150 ℃ and at the same time the pattern shape and the curved shape is heat-set (set) and molded while being sandwiched between the rubber roller (10) and the roller (both rollers) 10, 11) is composed of a sixth process wound on the top (branch) 12 is placed on the top between and is to remove the shrink film after the molding is completed.

In the above production method, the shrink film is used polyester shrink film, polyethylene shrink film, polypropylene shrink film and the like can also be used.

Polyester shrink film has a shrinkage of about 45% in water at 80 ℃, there is a shrinkage of about 55% at 100 ℃ and shrink film has a shrink film that shrinks both the width and length at the same time.

Therefore, in the case of using the shrinkage film in the width direction, the feed rate of the feed roller and the feed rate of the finished product wound on the end (branch) are the same, but in the case of using a film that simultaneously shrinks in width and length, the feed rate is directly proportional to the shrinkage rate of the shrink film. Is faster.

In the first step, the polyurethane composition is a polyester-based polyurethane synthetic resin used as a two-component resin, and a diluent for diluting the polyurethane resin by diluting the diluent with a solution such as a crosslinking agent is methyl ethyl ketone (MEK) or Toluene is used, and when the polyurethane resin is dried, isocyanate system is mixed as a crosslinking agent to strengthen the polymerization or mixing of the mixed solution to make a composition.

Polyurethane Synthetic Resin: 1% by weight

Diluent (MEK or toluene): 1.5% by weight

Crosslinking agent (isocyanite): 0.5 wt%

The composition is formed by mixing such solutions.

In the second process, in order to maintain a constant amount of the resin composition liquid 17 in the solution container 16, a solution supply container (not shown) is connected to the solution container 16 by a circular pipe (not shown). In the intermediate portion of the circular pipe, a valve (not shown) that is opened and closed according to the movement of the buoyancy body (not shown) that is moved up and down according to the amount of the resin composition liquid 17 of the solution container 16 is built in the above. When the amount of the resin composition liquid 17 of the solution container 16 is reduced, the buoyancy body is moved downward while the connection part connected to the buoyancy body is downwardly opened, and the valve is opened so that the resin composition liquid 17 is supplied and replenished.

The water of the hot water tank 1 of the fourth process is evaporated by the high temperature in the hot water tank 1 and at the same time absorbed by the fabric fabric is reduced in amount.

Therefore, the replenishment of water is different from the fact that there is a difference between installing a solution for refilling the resin composition solution of the second process and a heater for maintaining a constant temperature (80-100 ° C.) of the hot water supply container. Do not describe.

As described above, the pattern forming method of the fabric fabric using the shrink film of the present invention is preserved in a hot air chamber at 45 to 50 ° C. for at least 14 hours to volatilize the solvent of methyl ethyl ketone (MEK), and the crosslinking agent and the polyurethane resin are cured to shrink. Except for the third process, which makes the film and fabric fabric firmly adhere to each other, it is a continuous process, and it is possible to form patterns and bends on the fabric fabric using a low-cost shrink film, and to continuously produce mass at a small cost. There are features that can be.

The present invention can form a pattern on the fabric fabric by the shrinkage force of the shrink film, so in the conventional device for forming a pattern to form a uniform pattern and eliminates the disadvantage that only a uniform shape can be formed even by the embossing device After applying the desired pattern to the shrink film and attaching it to the fabric fabric, the portion of the fabric bonded by polyurethane resin to the fabric fabric in hot water shrinks or shrinks much according to the shrinkage ratio of the shrink film. According to the shrinkage rate, the tissue becomes dense and various pattern shapes can be formed. Also, the part which is not bonded by the polyurethane resin is not contracted but is pulled as the shrink film shrinks to form a bulging bend and heat-set by heat. ) And the pattern shape is molded so that various patterns and shapes There is an effect that is formed, and also can be mass-produced in a continuous process, and the equipment is simple, it is possible to produce in a small space, the shrinkage film is low cost, and there is an effect and advantages that can reduce the production cost.

Claims (1)

1st process of mixing a solution in the ratio of 0.9-1.1 weight% of polyurethane resin, 0.4-0.6 weight% of crosslinking agents, and 1.4-1.6 weight% of diluents, and to form a urethane resin mixture liquid; The urethane resin composition 17 mixed in the first process is injected into the solution container 16 located at the bottom of the patterned roller 14 having a fixed height so that the patterned roller 14 is accommodated in the solution container 16. Shrink film (19) supplied while applying a pressure of 0.2 to 0.3 kg / cm 2 to the silicone rubber roller (15) whose height is adjusted while being engaged with the patterned application roller (14) by being immersed in the resin composition liquid (17) for about 2/5. ) A second step of applying a pattern on the lower surface; After the coated surface of the patterned shrink film 19 is bonded to the fabric fabric 24 and bonded by passing between the pneumatic roller 20 and the rubber roller (21) having a pressure of 2-3 kg / ㎠ A third step of preserving for 14 hours or more in a hot air chamber at 45 to 50 ° C. to firmly bond the both; A fourth step of passing the fabric fabric (13) bonded through the third step through a hot water container (1) maintained at 80 to 100 ° C. at a rate of 10 M (meter) / M (minute); A fifth step of firstly drying 60-70% of the water absorbed by the shrinkage through the fourth process at the suction port 5 of the vacuum pump; The fabric fabric 13 primarily dried in the fifth process is guided to the mesh belt 9 of the setting machine and dried while passing between the mesh belt 9 and the heater built-in roller 7 at 140 to 150 ° C. A pattern forming method of a fabric fabric using a shrink film characterized in that the sixth step of the shape and bending shape is heat-set (setting).