KR20020071519A - The method of preparing layer felt for inner skin of brassiere - Google Patents

Abstract

PURPOSE: Provided is a process of preparing a laminated felt having excellent adhesion with an outer liner and between layers of a laminated felt and air permeability while having thermoformability. A brassier prepared by using the laminated felt has excellent wearing feeling, does not generate separation between a layer of an outer liner and an inner lining fiber(nonwoven) and circular knitted fabrics by sweat or cleaning as well as causing no change of qualities in color or shape deformation. CONSTITUTION: A chemical fiber(cotton) is interfaced to form a thin-film sheet with a thickness of 0.5mm, which is laminated over and over again and passed through a roller to give a chemical fiber layer(2) having a thickness of 4 to 5mm, and the set chemical fiber sheet and circular knitted fabrics are laminated, passed though a punching machine vertically attached with a large number of needles to form a fiber raising layer on the outer surface of the circular knitted fabrics and then slightly set with the roller. Thereafter, polyamide powder is subjected to sprinkling on both faces of the set laminated sheet with a vibration means in high temperature atmosphere and then performing heat fusion to give a polyamide powder fused layer(1,1').

Description

Manufacturing method of laminated felt for bra endothelium {THE METHOD OF PREPARING LAYER FELT FOR INNER SKIN OF BRASSIERE}

The present invention relates to a method for manufacturing a laminated felt used as a bra inner skin, specifically, having a thermosetting as a bra inner skin, adhesiveness with the outer skin and excellent adhesion between the layers of the laminated felt and excellent breathability bra inner laminate It relates to a method for producing a felt.

Conventionally, a soft polyurethane foam sheet has been mainly used as a bra endothelial material, and a bra has been manufactured by thermoforming with a laminate in which a cloth is laminated on both sides by applying an adhesive to both sides of such foam sheet.

Such a bra has good elasticity, but in the process of thermoforming the polyurethane resin and the foaming agent in the form of a bra cup, toxic gas is generated by pyrolysis, and the yellowing phenomenon peculiar to the polyurethane resin occurs when the bra is used for a long time. Yellow stains make it more aesthetically unusable. Moreover, it is a weak point that polyurethane foam is homogeneous pores, and the surface of polyurethane is fused due to fusion of polyurethane surface during thermoforming process. After washing, peeling phenomenon occurs between the outer cloth and the foamed polyurethane material.

In another conventional method, there is a method of manufacturing a bra by cutting a thick polyurethane foam sheet with a sharp cutting knife with a sharp cutting knife and forming a bra cup shape by applying an outer covering to the outer cover, but this is not a cup forming method by thermoforming. There is no risk of poisonous gas and the overall structure of the endothelium is uniform, so it is comfortable to wear. However, the cutting process for forming the bra cup is too inefficient, resulting in a problem that the unit cost rises more than twice and the yellowing phenomenon cannot be avoided.

In addition, the utility model, which has been recently developed and registered under the designation "Brass Cup Endothelial", registered under No. 20-0170146, can improve thermoforming by inserting a synthetic resin thin film having a synthetic mesh or a vent between both nonwoven fabrics. However, when cooling to room temperature after cup forming at high temperature, the shrinkage of bra is caused by rapid shrinkage of synthetic resin mesh or thin plate that has large heat shrinkage, and it is not comfortable to wear due to heterogeneity with outer fabric or fabric material, and poor adhesion to outer skin. When used for a long time, as well as the separation between the outer skin and the endothelial fiber (cotton) layer and the synthetic resin thin plate has a problem that the material is relaxed.

The present invention has an object to provide a method for producing a bra endothelial laminated felt that solves the problems of conventional bras and bras endothelial used in detail, and in detail is a good fit and breathability and long-term use of color deterioration or shape It is an object of the present invention to provide a method for manufacturing a laminated felt for bra bra without the deformation and the phenomenon of adhesion to the skin as well as peeling off the laminate between the inner skin.

1 is a partially enlarged cross-sectional view of the present invention.

2 is an exemplary view showing a manufacturing process of the present invention

The present invention is a manufacturing method of the bra endothelial laminated felt which solves the problem of bra or endothelial used for the manufacture of the bra as the first step by dropping a uniform fiber (cotton) in a certain amount from the hopper on the moving conveyor belt Through the card machine, the cotton is interfaced to form a sheet of thin film, and the cotton sheet of such thin film is laminated in several layers, and then passed through a roller under constant pressure. After laminating with the knitted fabric, as shown in Fig. 2, the needle is repeatedly counted vertically with a punching machine in which 1000-1200 pieces are vertically fixed so that the needle penetrates the laminated sheet (fibrous fiber layer and circular knitted fabric) to entangle the fiber fibers. As a result of the three-dimensional interlocking of the pivas, the nonwoven fabric is formed on the fibrous fibrous layer, and at the same time, the pyva is knitted. It penetrates water to form a fibrous pyramid brush layer on the outer side of the circular knit fabric, and then set it lightly with a roller and drop it in a high-temperature atmosphere where the polyamide powder can be melted by vibrating means on both sides of the set felt. It can be said to be a manufacturing method of the laminated felt for bra endothelial which thermally fused polyamide powder to the surface of a laminated body by scattering.

In the above method, the thickness of the thin film sheet is about 0.5mm, and the fiber fiber layer laminated in layers is about 4-5mm, and when the thermoforming is used for bra endothelium, the thickness of the bra cup is about 2mm.

As described above, the laminated belt is composed of a polyamide powder fusing layer 1, a fiber filament layer 2, a circular knitted fabric layer 3, a fiber filamentation layer 4, and a polyamide powder fusing layer. (1 ') is a laminated layered felt for bra endothelium, the function and action of the laminated felt such that the polyamide powder fusion layer is fused to the surface of the felt in a scattering manner to ensure the breathability of the laminated felt layer and bra cup heat In forming, strong thermal adhesiveness is generated by polyamide to obtain excellent adhesion to the outer skin, and the pie bar penetrating the circular knitted fabric by the needlefun lamination machine forms a myriad of filamentous fibers on the outer surface of the circular knitted fabric. The polyamide is fused onto the brushed layer, so that the brush is firmly fused and fixed to the outside of the circular knitting fabric during the setting process, so there is no separation of the circular knitted fabric and the piba layer (nonwoven fabric). Of the inner shell it does not occur the phenomenon that (mainly cotton) vorticity generated because excellent adhesion and Standing endothelial sheath is removed or relaxed.

When the bra is manufactured as a laminated felt, the thermoformability is good due to the polyester nonwoven fabric layer or the polyamide powder fusion layer of polyester, and the outer surface and the adhesive strength are strongly shown due to the polyamide powder fusion layer, which is the surface layer of the inner skin.

The laminated felt having thermoforming according to the present invention has excellent thermoformability during bra cup molding because the fiber fiber layer is thermoplastic polyester or acrylic fiber, and the bra manufactured with the laminated felt is excellent in fit or breathability and used for a long time. In addition, there is no color change or shape change due to the endothelium, and the separation between the outer skin and the endothelial fiber (nonwoven) layer and the circular knitted fabric does not occur due to sweat or washing due to the long-term use due to the scattered polyamide powder fusion layer. It can be said that the manufacturing method of laminated bra felt for bra can be manufactured high-quality bra.

Claims (1)

The interfacial fiber (cotton) interfaced to form a sheet of thin film, and then the multi-fiber fibrous sheet of the thin film was laminated in layers and passed through a roller to set and set the multi-fiber fiber sheet (cotton) and the circular knitted fabric After the lamination, the upper and lower motions are repeated by a punching machine in which a number of needles are vertically attached so that the needle penetrates the lamination sheet, causing the fiber threads to become entangled with each other. Laminated felt for bra inner skin where polyamide powder was thermally fused to the surface of the laminated body by dropping polyamide powder in high temperature atmosphere by vibratory means on both sides of the laminated sheet set by light setting with roller Manufacturing method.