KR100405319B1 - 3-layed Padding without Stick-through and Manufacturing Method - Google Patents

Abstract

The present invention relates to a three-layer padding and a method of manufacturing the same, which has a soft touch and no fiber exudation to the outside of the surface treatment layer. The heat press roll comprises a web 50 formed by mixing a plurality of short fibers at a predetermined ratio. While passing through the 51 to the surface of the web 50 with a spray 52a on the binder to prevent the outflow of fibers through the binder 50 to pass the web 50 through the band dryer 53, the web (primary The surface of 50) is dried and crosslinked, and secondly, the binder is bonded to the back surface of the web 50 with a spray 52b, and then wound to wind the web 50 having a padding form through a drying step of completing drying and crosslinking. And a heating step of dispersing the powder on the upper end of the woven cross-section treated web 50 and passing through the infrared heater 62 to make the dispersed thermoplastic powder flow, and the thermoplastic wave passed through the heating step. The heat-sealing non-woven fabric 63 is laminated on the top of the middle insulation layer in which wood is spread, and then passed through a cooling roll 65 to complete the lamination. It is much more free than other thermal insulation materials because its use is very low compared to other padding products. It will have a texture and will have a more active character.

Description

3-layer padding without fiber exudation and manufacturing method thereof {3-layed Padding without Stick-through and Manufacturing Method}

The present invention relates to a three-layer padding having a soft touch and free of fiber leakage to the outside of the surface treatment layer and a method of manufacturing the same.

In general, padding producers are produced by a large number of companies both at home and abroad, and in the foreign countries, 3M in the US, Freudenberg in Germany, and JVC in Japan are representative. It is a producer.

In addition, small- and medium-sized companies produce and supply general padding to the market. The padding produced by representative companies mainly consists of products with anti-exudation treatment on both sides, and these products are mainly applied to coats, ski wears and jackets, which are middle and expensive winter clothing.

Current technology similar to the present invention is a technique of treating the surface by increasing the crimping rate by heating both sides using latent crimping yarn. In the case of the padding manufactured by this technique, the surface treatment degree of both sides is primarily dried and crosslinked. Afterwards, in order to dry and cross-link the second side again, brushing occurs on the back during transportation, and the quality difference between the surface and the back is remarkably different.

The manufacturing process of the padding using the latent crimping yarn has a feature of increasing the surface density as the number of crimps increases when the latent crimping yarn is heat treated. In addition, when nylon is applied to the surface layer to prevent the exudation of the surface, the surface of the heating roll is passed through the heat press roll, and the surface is calmed. However, when the surface is treated using the melting point of the polyester, the temperature of the heating roll is about 220 ° C. Since the high temperature is required, the surface is roughened, but the surface is rough, and if the surface treatment is strengthened to prevent the surface exudation of the fiber, the touch becomes hard, and the feel of the surface and the back is different, resulting in a bad fit. On the other hand, a technique relating to the manufacture of a patting used for a special purpose that requires strength is introduced in US Patent Publication No. US 5,236,770. Although the technique is a stilt on the padding itself, it is improved to reduce the volume (Volume) To bond the nonwoven fabric to the padding simply by a separate process. In addition, the strength of the product is reinforced, but the thickness of the product decreases because a certain input is required for bonding, and it is not used in practice. Also, a technique for overcoming the problem of fiber exudation and hard touch is disclosed in US Patent Publication US5. The technique is based on a method of laminating fibers of a suitable thickness and then applying a binder to dry them, and mainly using low-felt fibers, and using polypropylene and spunbond nonwovens as binders. After application, it prevents effusion and improves heat retention, or by using a simple padding method by adhering a spunbond nonwoven fabric to a simple padding using a spray bond, etc., to obtain a three-layered product used on both sides of a heat shrinkable fiber. There is no problem.

The present invention has been made in order to solve the conventional problems as described above, to achieve a surface treatment without fiber exudation and at the same time to prevent the hardening of the padding by the surface reinforcement to prevent fiber exudation to feel the final product of the padding It is to provide a three-layer padding and a method of manufacturing the same without the intact fiber exudation.

It is still another object of the present invention to minimize the amount of binder damaging the touch, and the difference between the surface and the back of the existing padding material with the heat-sealed non-woven fabric, the surface of the relatively lack of surface exudation treatment to a soft heat-sealed non-woven fabric The present invention provides a three-layer padding without fiber exudation and a method of manufacturing the same, which prevents exudation while maintaining a soft touch by laminating.

The three-layer padding without fiber exudation of the present invention and a method of manufacturing the same are passed through a web formed by mixing a plurality of short fibers in a predetermined ratio through a heat press roll to treat the surface of the web with a binder to spray the surface of the web The binder bonding step of preventing and passing the web through the binder bonding step through the band dryer, firstly crosslinking the binder on the web surface with drying and secondly treating the binder with a spray on the back surface of the web and then completing the drying and crosslinking. Drying step, the heating step of dispersing the powder on the upper end of the web obtained in the drying step and passing through the heater to melt the powder, and the heat-sealed non-woven fabric on the top of the intermediate heat insulating layer through the heating step into a fluidized bed It is made of a cooling step of cooling by passing through a cooling roll after laminating through the thermoplastic powder.

1 is a perspective view showing a three-layer structure of the padding according to the present invention,

2 is a process chart showing a manufacturing process of the anti-exudation insulation of the present invention,

3 is a process chart showing the laminating process of the present invention.

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

10: surface treatment layer, 20: intermediate heat insulation layer, 30: laminating layer, 50: web, 51: heat press roll, 52a, 52b: spray, 53: band dryer, 61: powder hopper, 62: infrared heater, 63: Heat-sealed nonwoven fabric, 64: lamination roll, 65: cooling roll

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the most preferred embodiments will be described with reference to the accompanying drawings in order to be described easily to those skilled in the art.

1 is a perspective view showing a three-layer structure of the padding according to the present invention, Figure 2 is a process chart showing a manufacturing process of the surface treatment layer of the present invention.

The step of producing a three-layer padding without fiber exudation of the present invention is divided into two steps, first step is to prepare a web to form a surface treatment layer and the intermediate insulation layer at the same time the surface treatment layer is prevented from exudation Step 2 is a laminating step of laminating a heat-sealed nonwoven fabric on top of the intermediate thermal insulation layer.

When describing the first step of forming the surface treatment layer and the intermediate insulation layer, the fineness of the short fibers used in the present invention uses short fibers in the range of 0.8 to 15 denier, and the fiber length can be variously applied depending on the performance of the carding machine. The short fiber may include various short fibers such as nylon, polyester, wool, cotton, and poly-trimethylene-telephtalate (PTT).

In order to form the surface treatment layer and the intermediate layer in the present invention, polyester (Polyester), nylon (Nylon), PTT (Poly-triethylene-telethtalate) is used by mixing in a certain ratio.

The short fiber mixing ratio of the surface treatment layer is a mixture of polyester 2.5 denier / 51 mm 50% and nylon 1.5 denier / 51 mm 50%, or a mixture of polyester 2.5 denier / 51 mm 30% and nylon 1.5 denier / 51 mm 70% Or PTT 2.5 denier / 51 mm 50% and nylon 1.5 denier / 51 mm 50%, or PTT 2.5 denier / 51 mm 30% and nylon 1.5 denier / 51 mm 70% are preferably mixed.

At least two carding machines should be used for carding the short fibers mixed in the above mixing ratio, because one carding machine, that is, the first carding machine, is necessary to form the surface treatment layer with the mixed short fibers. The other carding machine, that is, the second carding machine, is necessary for the fiber composition constituting the intermediate thermal insulation layer. In addition, at least three carding machines are required to produce heavier products at the same process speed.

When the mixing ratio of nylon in the short fiber mixing ratio is high, the surface treatment effect of the surface treatment layer is good, but there is a disadvantage that wrinkles easily occur in the surface treatment layer if the tension control of the web is not appropriate in a subsequent process.

In addition, in order to make the final product feel smooth and smooth in the short fibers constituting the intermediate thermal insulation layer, it is preferable to mix the short fibers treated with silicon on the surface of the short fibers to a certain portion.

After passing the web 50 formed by the above fiber composition through the heat press roll 51 as shown in FIG. 2, the binder 50 is sprayed onto the surface of the web 50 with a spray 52a to short fibers of the web 50. To join them.

At this time, the binder component used is acrylic (PA), PA (Polyamide), PES (Polyester), PU (Polyurethane) -based binder can be used as appropriate to select the binder to suit the characteristics of the final product.

Passing the binder 50 by the spray (52a) through a band dryer (Band Dryer) 53 while heating the binder dispersed on the surface of the web 50 by primary drying and crosslinking, and then the secondary web After the binder is dispersed on the back surface of the sprayer 50 with the spray 52b, the binder dispersed on the back surface of the web 50 is heated to complete drying and crosslinking.

At this time, the heating temperature of the band dryer 53 is adjusted according to the components of the binder, it is generally preferred to apply a range of 150 ~ 170 ℃.

When the heating temperature of the band dryer 53 is 150 ° C. or lower, the binder is not melted for adhesion, and thus drying and crosslinking are not appropriately performed, and the drying speed is slowed, resulting in a slow production speed. On the other hand, the heating temperature is required to be a temperature of 150 ℃ or more because of the nature of the acrylic binder crosslinking occurs after drying, the bonding state with the short fibers does not change even after washing.

In addition, when the heating temperature is 170 ℃ or more, short fibers shrink and the width becomes unstable, and the binder is applied to such a product because an appropriate temperature is generally required to complete the bonding of the fibers. The crosslinking temperature of is most appropriate.

Through the above process, the surface treatment layer 10 winds the web 50 treated with anti-exudation and moves to the next step.

While passing the web 50 on which the surface treatment layer 10 and the intermediate insulation layer 20 are formed through the first step, the polyethylene stored in the hopper 61 is passed through the hopper 61 under the powder scattering facility. The polyethylene is melted while spreading on the upper surface of the intermediate thermal insulation layer 20 and passing through the infrared heater 62.

The heating temperature of the infrared heater 62 is appropriately in the range of 100 ° C to 150 ° C. When the heating temperature is 100 ° C or lower, the powder does not become molten, and when the heating temperature is 150 ° C or higher, the intermediate insulating layer 20 ) Insulation will shrink.

Laminating layer (30) for laminating the heat-sealed nonwoven fabric (63) at the top of the intermediate insulation layer 20 in the state in which polyethylene is melted on the upper surface of the intermediate insulation layer (20) to be laminated on the lamination roll (64). ) Is melted and passed through the cooling roll 65 to be wound up.

The pressure of the paper roll 64 is appropriately in the range of 1.0 ~ 3.0kg / ㎠, if the pressure of the paper roll 64 is too high, the thickness of the intermediate insulation layer is too thin, if the pressure is too low, the heat after lamination There is a possibility that the fused nonwoven fabric 63 is separated.

The insulation prepared by the present invention has no fiber exudation and at the same time has a soft feel, so the use of the outer fabric or the lining is extremely free compared to other insulation products because the use of outer fibers or linings is extremely less than that of other padding products. Compared with the use of the binder, which has a thin thickness of the anti-exudation layer and a hard touch, the amount of the binder is significantly less, which results in a softer texture and better activity.

Claims (6)

(Crystal) heat drying after predetermined drying and heating to produce a three-layer padding; Binder bonding step of bonding the binder of acrylic, PA, PES, PU-based components to the surface of the web is formed at a constant mixing ratio and the web passing through the heat press roll by spraying: A drying step of first drying and crosslinking the surface of the web with a band dryer to the web obtained in the binder adhering step, adhering the binder to the back surface of the web by spraying, and then secondly drying and crosslinking; A heating step of dispersing the powder on the upper end of the cross-section extraction prevention intermediate thermal insulation layer obtained in the drying step and then heating it with a far infrared heater; The padding of the three-layer structure without fiber exudation, comprising a cooling step of laminating a heat-sealed nonwoven fabric through a thermoplastic powder on top of the intermediate heat insulating layer and passing it through a cooling roll to complete lamination. Manufacturing method. (delete) The method according to claim 1, Heating method of the infrared heater is a padding manufacturing method of the three-layer structure without fiber, characterized in that 100 ~ 150 ℃. The method according to claim 1, The pressure of the cooling roll is a padding manufacturing method of the three-layer structure without fiber extrusion, characterized in that 1.0 ~ 3.0kg / mm2. The method according to claim 1, The mixing ratio of the short fibers of the surface treatment layer is 2.5% denier / 51mm 50% nylon 1.5denier / 51mm 50%, or 2.5% denier / 51mm 30% polyester and 1.5% denier / 51mm 70% nylon, or 2.5 PTT denier / 51mm 50% and nylon 1.5 denier / 51mm 50%, or PTT 2.5 denier / 51mm 70% and nylon 1.5 denier / 51mm 30% of the three-layer structure padding manufacturing method characterized in that it is mixed . (correction) In constructing a three-layer padding on the surface of the intermediate insulation layer is formed a surface treatment layer without fiber exudation, The back surface of the intermediate insulation layer is padded with a three-layer structure without fiber exudation, characterized in that the heat-sealed non-woven fabric is made of laminated.