KR100501177B1 - A process of preparing for three-layer textile sheet used in clothing - Google Patents

Abstract

The present invention relates to a method of manufacturing a fibrous sheet for garments having a three-layer structure, wherein the water-repellent bubble (A) and the water-repellent bubble (B) is bubbled with a water-repellent treatment when the synthetic resin adhesive is combined. Before the transfer of the synthetic resin adhesive onto the gravure metal roll (3) on (A), the surface of the water-repellent bubble (A) is corona-treated with a corona discharger (2) so that the synthetic resin adhesive is uniformly well transferred onto the surface of the bubble (A). It is characterized by. According to the present invention, even though a small amount of synthetic resin adhesive is used, the bubbles (A and B) can be firmly combined, thereby reducing the manufacturing cost, and of course, the touch of the final product is greatly improved, thereby further improving the bubble of thin paper (thin) bubbles. useful. In addition, the present invention can be combined with the non-water-repellent bubbles on the water-repellent bubble with a Teflon water repellent agent is a wide range of application.

Description

A process of preparing for three-layer textile sheet used in clothing}

The present invention relates to a method for producing a fibrous sheet for clothing having a three-layer structure.

Until now, mainly for textiles, woven fabrics, knitted fabrics, or nonwoven fabrics are used as single materials.

To date, according to the progress of human history, the number of types of fabrics has increased enormously, and the organization of fabrics has been diversified. But ordinary fabrics, except for special ones, are based on three kinds of plain weave, twill weave and runner weaves made by changing or combining them. And knitting had a very short history, but made great progress. It was rapidly developed after being produced in 1589 by the British's sock knitting machine. If we look at knitting, we can classify it into upper and warp knitting.

The properties of the fabric are excellent in mechanical properties such as strength, but generally less elastic than knitted fabrics unless a special elastic yarn (span yarn) is used. In recent years, the productivity of the loom has increased considerably, but the productivity is low compared to the knitting. In addition, the preparation process requires incorporation into the canon, gaho, heald and the body, and enters the gastrointestinal tract.

And it is hard to touch compared with knitting. On the other hand, a knitted fabric refers to a forge knitted by forming a loop with only yarns in a horizontal direction or a yarn in a longitudinal direction and continuously forming in a horizontal or vertical direction. And the warp knitted by knitting the warp in the direction of the warp (vertical) to form a warp, the upper piece is a mechanized hand piece (手 編) by means of forming a loop in the upper (horizontal) direction.

The characteristics of the knitted fabrics are high in elasticity, strong in elasticity, and have high porosity due to the formation of loops, which is flexible and high in warmth. And no ironing after washing. However, there is a problem that the mechanical properties such as strength is inferior to the fabric.

On the other hand, nonwoven fabrics are mainly used for industrial purposes such as filters and diapers. Nonwoven fabrics include long-fiber nonwoven fabrics in which spun filaments are randomly accumulated on a conveyor and then thermally bonded to each other.Short-fiber nonwoven fabrics in which webs are prepared by agglomerating short fibers and then bonded to each other by a process such as needle punching There are many kinds.

Nonwoven fabrics are relatively inexpensive to manufacture and have high productivity and are economical, but in order to satisfy mechanical properties such as strength required for use in clothing, the weight per unit area is too high and is rarely used for clothing.

As described above, each of the woven fabrics, knitted fabrics, and nonwoven fabrics has advantages and disadvantages.

Hereinafter, in the present invention, woven fabrics, knitted fabrics and nonwoven fabrics are collectively referred to as bubbles.

The present invention is to produce a three-layered garment fabric sheet having a variety of functionality, characteristics and feel by effectively bonding the water-repellent foam (A) and the water-repellent bubble (B) with a synthetic resin adhesive.

2. Description of the Related Art [0002] A two-layered fibrous sheet (wick) is conventionally used in which one kind of bubbles selected from woven fabrics, knitted fabrics and nonwoven fabrics is wicked using a hot melt (heat-sealed) material. At this time, the hot melt material is used such as polyamide, polyester or ethylene vinyl acetate, these hot melt material is applied to the bubble or sprayed. However, such products are used only in parts (inside) intended to be fitted with irons or hot plates in the sewing process of shirts or fashion garments, and are not used for general apparel use.

On the other hand, there has been an attempt to express various physical properties by manufacturing a fabric or knitted fabric made of a double weave structure, this method is difficult to change the structure in various forms of the fabric or knitted fabric, and there are many problems in productivity.

Therefore, there has been a great demand for the development of a three-layer garment textile sheet having various functionalities and feels by efficiently combining various kinds of fabrics, knitted fabrics or nonwoven fabrics with a synthetic resin adhesive.

As a prior art of combining two kinds of bubbles with a synthetic resin adhesive, the Republic of Korea Patent No. 336430 discloses that two bubbles selected from woven fabric, knitted fabric or nonwoven fabric are combined with a synthetic resin adhesive (i). Gravure-shaped gravure metal roll with engraved net pattern transfers the synthetic resin adhesive on one side of the bubble with relatively good morphological stability and then hot-air-dried, and (ii) the bubble to which the adhesive has been transferred and the rest of the adhesive is not transferred The method for producing a fibrous sheet for a garment having a three-layer structure is characterized in that bubbles are simultaneously supplied to a heating drum and a pressure roll, and then combined with each other, followed by (iii) passing through a cooling drum.

The method has an effect of expressing various functionalities by combining two kinds of bubbles selected from woven fabrics, knitted fabrics, and nonwoven fabrics having various characteristics with synthetic resin adhesives, but the synthetic resin adhesives transferred onto the water-repellent bubbles are hydrophobic on the surface of the foam. There was a problem that the adhesive strength is lowered because it is not evenly transferred.

As a result, in order to improve laundry durability of the final product, the transfer amount of the synthetic resin adhesive was set at a high level of 10-15 g / m 2, which causes a problem that the touch of the product was lowered and the manufacturing cost was increased.

Further, in the case of the water-repellent bubble with a Teflon waterproofing agent, the hydrophobicity of the bubble surface was so strong that there was a limitation that the bubble of the bubble itself was impossible with the prior art.

The present invention is to provide a method for producing a fibrous sheet for a garment having a three-layer structure capable of combining the two bubbles with a good adhesive force with a smaller amount of synthetic resin adhesive for reducing the cost and product feel. In addition, the present invention is applicable to a bubble water-repellent treated with a Teflon water repellent, and to provide a method for producing a fabric sheet for garments having a three-layer structure more useful for the combination of foil bubbles.

In order to achieve the above problems, a method of manufacturing a fibrous sheet for garments having a three-layer structure according to the present invention is to combine the water-repellent bubble (A) and the water-repellent bubble (B) with a synthetic resin adhesive. time,

(Iii) the surface of the water-repellent bubble A is corona treated with a corona discharger 2,

(Ii) transfer the synthetic resin adhesive to the surface of the corona treated bubble (A) with a gravure metal roll (3) engraved with a net-shaped engraved pattern, and then dry it with hot air;

(Iii) bubbles (A) on which the synthetic resin adhesive is transferred and bubbles (B) not water repellent are simultaneously supplied between the heating drum (7) and the pressure roll (8), and these are bubbled together.

(Iii) After passing through the cooling drum (9) is characterized by aging, winding.

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

First, the present invention relates to a method of combining the water-repellent bubble (A) and the non-water-repellent bubble (B) with a synthetic resin adhesive, wherein the bubbles (A and B) are desired among woven, knitted and nonwoven fabrics. Two types of bubbles are selected in consideration of physical properties. Woven fabrics and knits, woven fabrics and nonwovens, knit fabrics and nonwovens, or of the same kind of bubble, may be selected.

In the case of fabrics, all the fabrics woven from natural fibers, recycled fibers, synthetic fibers and the like can be selected in the present invention. In the case of knitted fabrics, both warp and weft knitting can be selected, and in the case of nonwoven fabrics, both long fiber and short fiber nonwoven can be selected. Synthetic fiber fabrics include all fabrics made from new synthetic fibers, such as microfiber woven fabrics, hollow fiber woven fabrics, and artificial suede fabrics.

The water-repellent bubble (A) is immersed in a 5% solution of a fluorine-based water-repellent agent such as Scotch Guard after passing through the mangle after drying the normal water-repellent bubble (A), dried for 30 seconds with hot air at 130 ℃, hot air at 170 ℃ Can be prepared by curing about 10 seconds.

The water repellent treatment is carried out to prevent the adhesive from penetrating too much into the bubbles and deteriorating the feel of the bubbles. As a water repellent, in addition to a fluorine-based water repellent, a teflon-based water repellent may be used.

The present invention is to temporarily hydrophilize the surface of the bubble (A) by corona treatment of the surface with a corona discharger (2) before transferring the synthetic resin adhesive to the gravure metal roll (3) on the water-repellent bubble (A) as shown in FIG. do.

More specifically, the surface of the water-repellent bubble A supplied from the water-repellent bubble supply roller 1 is corona-treated with the corona discharger 2 on the corona treatment roll 2b.

In general, the surface of the water-repellent bubble (A) has a very low critical surface tension because of its very weak bonding force with the future synthetic resin adhesive due to hydrophobicity and low surface energy. As a result, the synthetic resin adhesive transferred onto the water-repellent bubble (A) is not evenly distributed, but exists in the form of agglomeration in the form of droplets. In this case, more adhesives have to be transferred (used) in order to express good adhesive strength, which lowers the cost and product feel.

In order to solve the above problems, the present invention is characterized in that the surface of the bubble (A) is corona treated before the synthetic resin adhesive is transferred to the surface of the bubble A treated with the gravure metal roll 3 as described above. It is done.

When the corona discharge treatment is performed, the particles between the discharge electrode 2a and the corona treatment roll 2b are ionized by the high frequency generated from the corona discharger 2 to generate charged particles.

The charged particles impinge on the surface of the bubble (A) located on the treatment roll to oxidize the surface of the bubble (A) to generate polar groups (C═O, C—O—H, COOH) on the surface of the bubble (A). As a result, the surface of the bubble (A) has increased surface energy and hydrophilization due to the polar groups generated, thereby increasing its affinity with the synthetic resin adhesive which is subsequently transferred.

With this phenomenon, the synthetic resin adhesive is evenly transferred onto the surface of the corona treated bubbles.

Subsequently, the synthetic resin adhesive is transferred to the gravure metal roll 3 in which the mesh-shaped engraved pattern (mesh) is carved on the corona treated bubble A surface as described above, followed by hot air drying.

More specifically, after the gravure metal roll 3 is partially in contact with the adhesive reservoir 4, the gravure metal roll 3 is rotated so that the adhesive is buried in the gravure metal roll 3, and then a doc knife is attached to the gravure metal. Contact with the surface of the roll 3 causes the adhesive to remain only in the intaglio pattern of the gravure gold brush 3.

Subsequently, while passing through the water-repellent bubble between the gravure metal roll 3 and the rubber roll 5, the adhesive remaining on the intaglio pattern of the gravure metal roll 3 is transferred to the bubble.

In the present invention, by using the gravure metal roll (3) it can be prevented that the excess adhesive is transferred to the bubble to reduce the touch of the product. Since the transfer amount of the adhesive is inversely proportional to the number of intaglio patterns carved per unit area of the gravure metal roll 3, the transfer amount of the adhesive may be adjusted by adjusting the number of the intaglio patterns.

The number of meshes of the gravure metal roll 3 represents the number of intaglio patterns carved per unit area (inch ² ) of the gravure metal roll 3. In general, when 50 gravure metal roll 3 is used, the transfer amount of the adhesive (coating amount) is about 10-25 g / m 2, and when 100 mesh gravure metal roll 3 is used, the transfer amount of adhesive (coating amount) ) Is 5-10 g / m 2 level.

The coating amount of the adhesive varies not only with the gravure metal roll mesh number but also with the viscosity of the adhesive composition. That is, even if the number of meshes of the gravure metal roll is the same, when the viscosity of the adhesive composition changes, the amount of adhesive applied also changes.

The synthetic resin adhesive composition used in the present invention mainly consists of a two-component polyurethane resin, a crosslinking agent (curing agent), a crosslinking accelerator and a diluent solvent.

The crosslinking agent can generally adjust the amount used according to the solid content of the two-component urethane resin. In general, increasing the amount of the crosslinking agent hardens the adhesive properties and decreases the flexibility, but increases the resilience, solvent resistance and hydrolysis resistance. On the other hand, when the amount of crosslinking agent used decreases, the resilience, solvent resistance and hydrolysis resistance decrease, but the flexibility is improved and the feel is soft. In general, the preferred amount of crosslinking agent according to the solid content of the two-component urethane resin is shown in Table 1.

<Table 1>

2-component polyurethane resin solids (%) Amount of crosslinking agent (parts by weight) 45 7.5 50 8.5 60 12 70 15 80 18

The adhesive composition of the present invention is preferably composed of about 10-15 parts by weight of the curing agent and about 40 parts by weight of the diluent solvent based on 100 parts by weight of the two-component polyurethane resin, but the present invention does not specifically limit the components and composition ratio of the adhesive composition. . For example, you may use the polyamide adhesive which can be melted at about 140 degreeC. As the dilution solvent, methyl ethyl ketone, toluene or dimethyl formamide is mainly used.

It is preferable to adjust the content of the synthetic resin adhesive to be transferred onto the bubble to be 15% by weight or less relative to the total weight of the fiber sheet having a three-layer structure. If the content of the adhesive exceeds 15% by weight, there is a problem that the feel of the final product is lowered.

According to the present invention, the adhesive applied by the gravure metal roll 3 is evenly distributed on the surface of the bubble A by applying a corona treatment to hydrophilize the surface thereof before transferring the adhesive on the water-repellent bubble A. As a result, even when a smaller amount of adhesive is applied (transferred) than before, good adhesion strength can be expressed.

Specifically, in the present invention, even if the transfer amount of the adhesive is reduced to a level of 6-9 g / m 2 by using a 100 mesh gravure metal roll 3, the desired adhesive strength can be obtained. This improves the feel of the product and lowers the cost.

After preparing the bubble A to which the adhesive is transferred in this process, the bubble A to which the adhesive is transferred and the bubble B to which the adhesive is not transferred and not water repellent are simultaneously heated at the heating drum 7 and the pressure roll ( 8) Combine them by applying heat and pressure at the same time. At this time, the surface temperature of the heating drum is 100-120 ℃, the pressure of the pressure roll is preferably 5-10kg / ㎠. However, depending on the material and type of bubble, temperature and pressure may vary. The rotational linear speed of the heating drum 7 and the pressing roll 8 is preferably about 5-40 m / min.

Next, in order to remove the heat received during bonding, the fabric sheet for clothing is fed to the cooling drum 9, cooled, and then aged and wound to prepare a final product fiber sheet. Aging improves dry cleaning and washing durability of the fibrous sheet. At this time, it is preferable to pass the cooling drum twice. The temperature of the aging chamber is 70-100 ° C. and the aging time is preferably about 20-30 hours.

The fabric sheet for garments produced according to the present invention has a three-layered structure in which foamed bubbles (A) and non-foamed bubbles (B) are bonded by a synthetic resin adhesive layer (C) as shown in FIG. Have

Selecting a variety of materials of the bubbles (A and B) can compensate for their respective disadvantages while maintaining the advantages that each of the fabric, knit and non-woven fabrics are intact.

The present invention will be described in more detail with reference to the following Examples. However, the present invention is not limited only to the following examples.

Example 1

After dyeing with acidic dye, the surface of the nylon fabric (sum of theodolite density: 260 bones / inch) water-repellent with Scotch Guard 5% aqueous solution was corona discharged with a corona discharger (2), and then 100 mesh The gravure metal roll was used to transfer the adhesive having the following composition to a coating amount of 8 g / m 2, and then hot-air dried at 100 ° C. for 10 seconds to prepare a nylon fabric to which the adhesive was transferred. The nylon fabric to which the adhesive was transferred and the non-water repellent knitted fabric (interlock 28 gauge) were simultaneously heated at 110 ° C. with a heating drum of 10 m / min and a pressure of 7 kg / cm 2. After supplying to a pressure roll having a speed of 10 m / min and adhering, and then aged in a aging room at a temperature of 80 ℃ for 24 hours to prepare a textile sheet for a garment having a three-layer structure.

   Adhesive composition

   ① 2-component polyurethane resin (solid content 70%): 100 parts by weight

   ② Curing agent (solid content 75%): 15 parts by weight

   ③ Curing accelerator: 5 parts by weight

   ④ Diluent solvent (methyl ethyl ketone / dimethylformamide = 4/1): 50 parts by weight

Example 2

After dyeing with a disperse dye, the surface of the polyester fabric water-repelled with Scotch Guard 5% aqueous dispersion was subjected to corona discharge with a corona discharger (2), and then 100 g of gravure metal roll was applied to the surface of the adhesive of 7 g / m 2. After transferring to the coating amount of the hot-air dried at 130 ℃ for 10 seconds to prepare a polyester fabric transfer the adhesive. The polyester fabric to which the adhesive was transferred and the adhesive was not transferred and the non-water repellent knitted fabric (interlock 32 gauge) simultaneously had a heating drum having a surface temperature of 100 ° C., a linear velocity of 10 m / min, and a pressure of 5 kg / cm 2, After supplying to a pressure roll having a linear speed of 10m / min, and then bonded, and aged for 24 hours in a aging room at a temperature of 80 ℃ to prepare a textile sheet for a garment having a three-layer structure.

  Adhesive composition

  ① 2-component polyurethane resin (solid content 60%): 100 parts by weight

  ② Curing agent (solid content 75%): 15 parts by weight

  ③ Curing accelerator: 5 parts by weight

  ④ Diluent solvent (methyl ethyl ketone): 40 parts by weight

Example 3

After dyeing with an acid dye, the surface of the nylon knitted fabric (interlock 28 gauge), which was treated with Scotch Guard 5% aqueous dispersion, was subjected to corona discharge with a corona discharger, and then 8 g of an adhesive having the same composition as in Example 2 with 90 mesh gravure metal rolls. Transfer to a coating amount of / ㎡ and dried by hot air at 100 ℃ for 10 seconds to prepare a nylon knitted transfer adhesive. The nylon knitted fabric to which the adhesive was transferred and the non-water-repellent short-fiber nonwoven fabric were simultaneously heated with a heating drum having a surface temperature of 110 ° C., a linear speed of 10 m / min, a pressure of 7 kg / cm 2, and a linear speed of 10 m. It was fed to a pressure roll of / min and bonded, and then aged for 24 hours in a aging chamber at a temperature of 80 ℃ to prepare a textile sheet for a garment having a three-layer structure. Table 2 shows the results of measuring the laundry durability and dry cleaning durability of the fabric sheets for garments prepared in the above examples.

<Table 3>

division Laundry durability Dry cleaning durability When washing three times When washing five times 3 times dry cleaning 5 times dry cleaning Example 1 Great Great Great Good Example 2 Great Good Great Great Example 3 Great Great Great Good

Wash durability was measured by the ISO 6330 5A (20 ℃, FLAT DRY) method, dry cleaning durability was measured by a conventional commercial method (Commercial Method).

Since the present invention temporarily hydrophilizes the surface of the water-repellent bubble (A) by corona discharge treatment, two types of bubbles may be combined with a desired adhesive strength even with a small amount of synthetic resin adhesive. As a result, the present invention can reduce the manufacturing cost and can greatly improve the feel of the product, which is particularly useful for the combination of foil paper bubbles. In addition, the present invention is also applicable to a bubble water-repellent treated with a Teflon water repellent.

1 is a process schematic diagram of the present invention

Figure 2 is a schematic cross-sectional view of the fibrous sheet produced by the present invention

3 is a photograph of the surface of the bubble not subjected to corona treatment

4 is a photograph of the surface of the corona treated bubble

※ Explanation of Codes on Major Parts of Drawings

1: Water repellent bubble (A) supply roller 2: Corona discharger

2a: discharge electrode 2b: corona treatment roll 3: gravure metal roll

4: adhesive reservoir 5: rubber roll 6: hot air dryer

7: heating drum 8: pressure roll 9: cooling drum

10: Bubble without water repellent treatment (B feed roller)

11: fiber sheet winding roller A: water-repellent bubble

B: Bubble without water repellent C: Synthetic resin adhesive layer

Claims (4)

In combining the water-repellent bubble (A) and the water-repellent bubble (B) with a synthetic resin adhesive, (Iii) the surface of the water-repellent bubble A is corona treated with a corona discharger 2, (Ii) transfer the synthetic resin adhesive to the surface of the corona treated foam (A) with a 100 mesh gravure metal roll (3) engraved with a net engraved pattern, and then dry with hot air for 3 to 20 seconds; (Iii) A heating drum (7) having a linear speed of 5 to 40 m / min and a linear speed of 5 to 40 m / min and a pressure of 5 to 7 kg at the same time for the bubble (A) to which the synthetic resin adhesive is transferred and the bubble (B) without water repellent treatment. fed between the press rolls 8 / m ² and combined them, (Iii) A method for producing a fibrous sheet for garments having a three-layer structure, characterized in that the cooling drum (9) is passed through two times and then aged and wound. delete delete delete