KR100339607B1 - Manufacturing method of uppers of leather shoe - Google Patents

Abstract

PURPOSE: A process for manufacturing upper of leather in a shoe is provided to obtain a variety of designs by high frequency molding compression manner having different designs already formed. CONSTITUTION: The process comprises forming the upper of leather(11) by compressing and fusion adhesion of a top leather(16) consisting of artificial leather(FILM)(13) having 0.2-0.3mm thickness and synthetic resin(PVC,EVA) and synthetic fiber(15); and a bottom leather(12) made of raw fabric using a high-frequency mold. The mold is formed with different designs by cutting and sewing the raw fabric into two pieces to produce an original form of the upper leather(11).

Description

Manufacturing method of uppers of leather shoe

The present invention relates to a method of manufacturing the upper of the shoe, in particular by attaching the method of attaching the artificial leather formed in a variety of designs to the upper by means of the sewing method of the high frequency mold compression molded various designs without the sewing method A method of making an upper.

Conventional upper construction has been composed of the upper by sewing the fabric by sewing more than two pieces and sewing the natural leather, artificial leather designed on the top, but this requires a long time sewing work and the design is elaborate, providing skilled sewing There is a problem that the high wages and long-time work of skilled sewing supplies are a burden of high cost to the product, thus losing the competitiveness abroad.

In consideration of the above problems, the present invention provides a method of constructing an upper by pressing artificial leather with various high frequency molds (MOLD) designed on the upper of the upper after sewing the upper of the upper. There is a purpose.

17 mold (correction) 18: fabric (a, b)

In the present invention, the upper portion of the upper is constructed using artificial leather.

(Correction) In general, the upper configuration is selectively cut by sewing two or more pieces of fabric, and contacting and sewing the epithelium cut out of the shape designed from the fabric of artificial leather, synthetic resin and synthetic fiber on the integrated fabric. Although the upper has been constructed, it requires a long sewing work and because the shape of the cut epithelium is elaborate, skilled sewing skills are required, and high wages and long working hours of skilled sewing provide a high cost burden on the product. There is a problem of losing competitiveness externally.

In view of the above problems, the present invention forms a harpy composed of two or more pieces of fabrics, and then contacts various materials of artificial leather, synthetic resin, and synthetic fibers on the harpy and variously designed high frequency molds (MOLD) By pressing the fabric into the mold and heat-sealing the mold part of the fabric, and removing the portions other than the designed epithelium by cutting and removing the epithelium into the lower skin to provide a method of forming an upper shaped like The purpose is.

(Correction) In the present invention, the part cut in the shape of a mold from a fabric in which artificial leather (FILM) of a certain thickness is bonded to synthetic resin (PVC, EVA,) and synthetic fibers is called epithelium for convenience, and two or more pieces are cut and cut from the fabric. The integrated fabric is called harpy by sewing the edge of the finished fabric.

(Correction) The present invention is characterized in that the upper part of the upper body is formed by using artificial leather to form a three-dimensional design only by fusion of a high frequency mold .

(Correct) It is required to control the high frequency voltage by the thickness of the artificial leather and the synthetic resin , and the artificial leather is characterized by the following processing method.

Additive B (HYDROCARBON + SOLVENT) 0.56 wt%

FIBER 2.8 weight%,

After coating and solidifying the composition consisting of color pigment 4.3% by weight, and impregnated with water to replace the solvent and water, the solvent (NN-DIMETHYL FORMAMIDE) is extracted from the composition coated on the oxford paper to form pores as much as the extracted part When the surface is buffed or pressed, and the oxford paper is peeled off, artificial leather of various surfaces is formed to a thickness of about 0.2 mm to 0.3 mm.

After the surface is processed as above, the oxford paper is peeled off to obtain artificial leather.

In forming the upper shape of the upper, the composition of more than two pieces (PIECE) is expected to greatly increase the elasticity and design effect when using the shoes, the thickness of the artificial leather in the composition of the epithelium fusion fusion during high-pressure mold It is desirable to use the most effective thickness.

When the mold is fused, the stitch number is molded into a design formed in the mold so that the stitch number is expressed along the sewing line.

1 is a configuration diagram of the upper

2 is an exploded view of the upper

(Correction) FIG. 2B is a harpy process diagram

(Correction) FIG. 2C is a coupling diagram of the harpy

11: upper 12: harpy

(Correction) Figure 4 is a state in which the mold is pressed on the epithelium

(Correction) Figure 5 is a schematic diagram of the bonding structure of the epithelium and the lower epithelium after pressing the mold

17: Mold

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

In the present invention, the upper portion of the upper 11 formed by cutting and sewing the fabric into two pieces, that is, the epithelium 16 bonded to the bottom 12 and the synthetic resin (PVC, EVA) and the synthetic fiber 15 and the artificial leather 13 And the design is characterized in that it is composed of a molded high frequency mold (MOLD) (17).

(Correction) It is preferable that the synthetic resin and the synthetic fiber to be bound with the artificial leather are formed to a thickness that facilitates fusion of the high frequency mold.

In forming the upper form, the composition of more than two pieces can greatly expect the effect of elasticity and design when the shoes are used, and the thickness of the fabric where the (crystal) artificial leather and synthetic resin are bound in the composition of the epithelium It is preferable to select the one in which the fusion is most effectively expressed when the high frequency mold (MOLD) is pressed.

(Correction) The number of stitches (sewing traces) is molded in a mold in which the design is molded so that the number of stitches (sewing traces) is expressed along the sewing line when the mold is fused .

When nylon, oxford, polyester is used as the fabric of the harpy 12, and the synthetic resin (PVC, EVA) and the synthetic fiber 15 are easily fused, they are bonded to the artificial leather 13 and used as the epithelium 16,

(Correction) The present invention is the epithelium formed by combining the harpy (12) and the synthetic resin (PVC, EVA) and the synthetic fiber (15) and artificial leather (13), which is a fabric formed integrally by cutting and sewing the fabric into one or more pieces And a high frequency mold (MOLD) 17 in which a predetermined shape and the number of stitches 14 are designed .

(Correction) Figure 1 is intended to show the configuration of the upper (11), Figure 2 A shows the state in which the epithelium is molded in artificial leather, Figure 2 B shows the process of cutting the lower skin from the fabric. 2, C shows the bonding of the lower epithelium cut from the distal end, and FIG. 3 shows the condition for the epithelium to be compressed by the mold over the lower epithelium , and FIG. 4 shows the epithelium when the mold is pressed onto the epithelium. 5 shows a state in which the epithelium and the lower epithelium are combined after the pressing of the mold.

(Correction) As shown in FIG. 2B, the cutout of two or more cuts from the fabric 18a is formed to form a harpy 12, and the synthetic resin (PVC, EVA), the synthetic fiber 15, and artificial leather ( 13 is bonded to form a fabric (18b) is cut into the shape of the mold 17 in the fabric (18b) is formed of the epithelium (16).

(Correction) The high frequency mold 17 is molded in its cross section with a shape as shown in FIG. 2A.

(Correction) As shown in B of FIG. 2, the fabric formed of two pieces is sewn to form the lower skin 12, and the epithelium 16 formed as shown in A of FIG. When pressed with MOLD) 17, the epithelial portion to which the mold 17 is bonded is fused to express the shape of the design and the number of stitches 14 clearly. After a period of time, the extra design is removed.

The upper structure according to the present invention not only uses various design expressions in order to proactively cope with the demands of the times changing from a function of simply protecting a foot to a concept of beautifying a part of the body and to enhance industrial performance. It can have the same effect as sewing and can produce automatic production, so the unit productivity is large and manpower is reduced, thus reducing labor cost and improving competitiveness.

Claims (1)

In the manufacturing method of the shoe upper, the upper skin (16) and the lower skin consisting of fabric (FILM) 13, synthetic resins (PVC, EVA) and synthetic fibers 15 are bonded to each other (0.2 mm ~ 0.3 mm) 12) A method of manufacturing a shoe upper, characterized in that the upper (12) is formed by fusion by the high-frequency mold (M0LD) (18) molded in the design. (Correction) The design molding of the high frequency mold (MOLD) 17 is configured to form a variety of shapes, but to form the stitch number 14, that is, the sewing traces to be expressed in the same shape as the sewing line along the line of the design . (Correction) After sewing two pieces (PIECE) of the fabric as shown in Figure 2 C to form a harpy (12) used in the same shape as shown in Figure 1, the size of the same as the harpy (12) Covering the fabric (18b) formed by the combination of artificial leather and synthetic resin or artificial leather and synthetic fibers on the lower skin (12) and pressing the fabric (18b) at a constant pressure with a high-frequency mold (MOLD) 17, the fabric (18b) The artificial leather and synthetic resin or artificial leather and synthetic fibers 15 of the portion is melted and the fusion is formed with the harpy (12). (Correction) After pressing the lower skin 12 and the fabric 18b with the mold 17 and a predetermined time elapses, if the portions other than the designed portion of the fabric 18b are removed, the lower skin 12 and the fabric 18b are removed. Only the epithelium 16 of the shape is left, and the number of stitches 14 are formed on both edges of the epithelium 16 and is expressed in a shape like a sewing line by manual labor.