TWI617424B - Method for forming a plane type shoe upper and the structure thereof - Google Patents

Abstract

The invention provides a flat body shape forming upper method and a structure thereof, and the flat body shape forming upper comprises a base fabric layer and a rubber layer, which is mainly laid on one of the base fabric layers by first laying the rubber layer on the base fabric layer. On the side, the rubber layer is melted and infiltrated into the gap of the base fabric layer by means of pressure heating, and the rubber layer and the base fabric layer are formed into a three-dimensional shape to form an upper with a decorative portion, thereby achieving lifting. The quality of the upper, reduced manufacturing costs, enhanced structural strength and improved comfort.

Description

Flat body shape forming upper method and structure thereof

The present invention relates to a portion of a shoe body, and more particularly to a planar body shaped shoe upper structure.

The invention further relates to a method of forming a planar body shaped upper structure.

It is known that the structure of the shoe body can be divided into an integrally formed shoe body or a shoe body having a plurality of components. The shoe body composed of the plurality of components can substantially include an upper and a sole, wherein the upper can be different according to different brands. Different design groups are equipped with related accessories to form signs or three-dimensional patterns;

According to the general flat body type, as shown in FIG. 1 , a plurality of decorative portions X are provided on the surface thereof, and there are many methods for forming the decorative portion X of the three-dimensional concave and convex pattern on the upper, however, various methods have Some of the shortcomings are detailed below:

One of the conventional methods, as shown in FIG. 2, is an enlarged schematic cross-sectional view of the upper structure, comprising a base fabric 80 having a plurality of fibers 81. For convenience of description, only a portion of the fibers 81 are shown in the fiber 81. One of the adhesive layers 82 is coated on one side, and a pre-formed decorative member 83 is attached to the base fabric 80 by the adhesive layer 82 so that the decorative member 83 is adhered to the base fabric 80. In this way, the decorative member 83 needs to be pre-formed, and the decorative member 83 is adhered to the base fabric 80. As a result, the process is complicated and the cost is relatively expensive. To overcome the aforementioned problems, the following two industries appear in the industry. Improved process;

For another conventional method, please refer to FIGS. 3-1 and 3-2, wherein the base fabric 80 is woven by two materials, and the two materials are respectively a wire 811 and a TPU spinning fiber 812. The TPU is an abbreviation of Thermoplastic Polyurethane, which is briefly described below as TPU, and the ratio of the wire 811 and the TPU drawn fiber 812 can be adjusted according to requirements in the shaped three-dimensional decorative part X. In the process, first, as shown in FIG. 3-1, one male mold 90 and one female mold 91 are disposed on both sides of the base fabric 80, and then the base fabric 80 is heated to a predetermined temperature and then pressed and pressed. After completion, the base fabric 80 forms a concave-convex shape according to the shape of the male mold 90 and the female mold 91, and the base fabric 80 is hardened and shaped after cooling due to the characteristics of the TPU material; however, in the process of processing The TPU spinning fiber 812 will be broken and melted by the action of high temperature and high pressure, as shown in Fig. 3-2, so that a gap M is generated between the fibers, so that the strength of the base fabric 80 is lowered. When the proportion of the TPU spinning fiber 812 is insufficient, it is often easy to form When the hollow portion S is generated, causing problems such as poor yield, and more, when the fibers of the base fabric 80 have a large gap M, the melted TPU material will seep into the base fabric 80 to contact the human body. On the side, it is easy to cause discomfort to the user's foot after hardening. In addition, the processing procedure of this method is also quite complicated. It is necessary to first draw the TPU material and then weave it with the general thread 811 to form the base fabric. 80;

For another conventional method, please refer to FIGS. 4-1 and 4-2, wherein the base fabric 80 is also woven by two materials, one of which is the aforementioned thread 811 and the other material is a composite wire 813. The composite wire 813 is formed by using a wire 811 as a base, and the wire 811 is pre-impregnated, and the wire 811 is externally coated with a TPU layer 813A. During the manufacturing process, the TPU layer of the composite wire 813 is externally formed. The 813A will melt due to the action of high temperature and high pressure, as shown in Figure 4-2. As a result, a gap M is formed between the fibers, which reduces the strength of the base fabric 80. Further, the composite wire 813 is also When the amount of TPU is insufficient, it is easy to form incompletely, and the hollow portion S is generated, resulting in problems such as poor yield, and more, when the fibers of the base fabric 80 have large gaps, the melted TPU material It will infiltrate the side of the base fabric 80 to contact the side of the human body, which will easily cause discomfort to the user's foot after hardening. In addition, the processing procedure is also quite complicated, and the silk thread 811 must be pre-processed into a composite yarn containing TPU. 813, and then weaving it with the general thread 811 to form the 80 cloth;

In order to overcome the above (1), the strength of the base fabric is insufficient (2), the process is complicated, the process is complicated, (3) the manufacturing cost is high, (4) the quality is poor (5), the upper of the shoe is in contact with one side of the human body, and the like, The flat body shape forming upper method and structure thereof.

The invention provides a flat body shape forming upper structure, the main purpose of which is to overcome the lack of strength of the base fabric, complicated process, numerous processes, high cost, poor quality, and side hardening of the upper surface of the human body;

To achieve the foregoing objective, the present invention provides a method of forming a planar body-formed upper structure, comprising:

a laying step, taking out a base fabric, and laying a soft material on the base fabric;

a setting step of disposing the base fabric and the soft material in a mold;

Pressing a heating step to close the mold to apply an external force to the soft material and the base fabric, and simultaneously heating the base fabric and the soft material to melt the soft material and combine with the base fabric to form a half finished product;

The demolding step causes the mold to be opened and the semi-finished product is taken out.

The invention further provides a planar body shape forming upper structure, comprising:

a base fabric layer having a first side, the base fabric layer comprising a plurality of filaments, each of the filaments having an outer surface, each of the outer surfaces having an apex, and a first gap is formed between the two wires, respectively a first gap is located on the first side;

a glue layer is bonded to the first side of the base fabric layer, the glue layer has a first surface, and in the unprocessed state, the first surface of the glue layer contacts the apex of each of the wires, after processing In a state, the adhesive layer fills the first gap, and the first surface of the adhesive layer covers the outer surface of each of the wires.

It can be seen from the foregoing that the present invention mainly lays the adhesive layer on one side of the base fabric layer, and then melts and infiltrates the adhesive layer into the gap of the base fabric layer by pressure heating. The rubber layer and the base fabric layer are formed into a three-dimensional shape to form an upper having a decorative portion.

In this way, it is not necessary to process the integrally formed decorative piece beforehand, and it is not necessary to extract the TPU spinning fiber in advance or pre-impregnate the yarn first, so as to simplify the process and reduce the manufacturing cost.

In addition, according to the needs of the user, laying a layer of rubber of different thickness can improve the uncontrollable proportion of the conventional TPU material, resulting in insufficient TPU material, thereby causing a hollowing out situation, thereby improving the quality of the finished product.

Moreover, in the process of processing, the density and strength of the base fabric layer are not changed or destroyed due to high temperature and high pressure, but after processing, the rubber layer melts and penetrates into the gap between the respective wires, thereby reinforcing the structure. strength.

Moreover, the density and strength of the base fabric layer remain unchanged during the processing, so that the rubber layer does not flow to the second side of the base fabric layer after processing and melting, thereby making the base fabric The layer is in contact with one side of the human body to keep it soft to enhance the comfort of use.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following for a brief description of the following:

The invention provides a method for forming a shoe upper in a plane shape, as shown in FIG. 5-1 to FIG. 6, comprising:

In the step A, a base fabric 10 is taken out. The base fabric 10 is composed of a general yarn. The yarn may be a natural fiber or a synthetic fiber. A soft material 30 is laid on the base fabric 10, and the soft material 30 can be For further description, the soft material 30 is laid on the second side 12 of the base fabric 10. Preferably, the soft material 30 has a TPU (thermoplastic polyurethane) or a PU (polyurethane). Predetermined thickness d2, wherein the soft material 30 of different preset thickness d2 can be laid according to user requirements;

In the step B, the base fabric 10 and the soft material 30 are disposed in a mold 20. Further, the mold 20 includes a first mold 21 and a second mold 22, and the base fabric 10 is laid on the first Preferably, the base fabric 10 has a first side 11 and a second side 12 facing the first mold 21, and the second side 12 is facing The soft material 30, the second mold 22 has a mold surface 221, the mold surface 221 is provided with a cavity 222, defining a maximum distance between the second side 12 and the mold surface 221 is a predetermined distance d1;

It is worth mentioning that, because the soft material 30 has excellent ductility, stretchability and excellent compression performance, in a preferred embodiment of the invention, the predetermined thickness d2 is greater than the preset distance d1. So that the mold 20 has not been closed, the soft material 30 has filled the cavity 222 of the second mold 22;

Pressing the heating step C to close the first mold 21 and the second mold 22 to apply an external force to the soft material 30 and the base fabric 10, and simultaneously heating the base fabric 10 and the soft material 30 to The soft material 30 melts and combines with the base fabric 10 to form a semi-finished product 40, as shown in Figure 5-2;

In the demolding step D, the first mold 21 and the second mold 22 are opened, and the semi-finished product 40 is taken out.

The invention further provides a planar body shape forming upper structure, as shown in FIG. 7 and FIG. 8, comprising:

A base fabric layer 60 has a first side 601 and a second side 602. The second side 602 is a side contacting the human body. The base fabric layer 60 includes a plurality of wires 61, and each of the wires 61 has a cross-sectional shape. Each of the wires 61 has an outer surface 611, and each of the outer surfaces 611 of the wires 61 has two contact portions 612 respectively contacting the other wires 61. The outer surface 611 is defined by the contact portions 612. a first outer surface 611A and a second outer surface 611B, the first outer surface 611A is located on the first side 601, the second outer surface 611B is located on the second side 602, and the first outer surface 611A of each of the wires 61 Each of the wires 61 has a first gap 614 and a second gap 615. The first gap 614 and the second gap 615 are blocked by the contact portion 612. The first gap 614 is formed. Located on the first side 601, the second gap 615 is located on the second side 602;

A glue layer 70 is bonded to the first side 601 of the base fabric layer 60. The glue layer 70 has a first surface 701 and a second surface 702. In this embodiment, the material of the glue layer 70 can be Polyurethane or thermoplastic polyurethane (Polyurethane), in the unprocessed state, the first side 701 of the adhesive layer 70 only contacts the apex 613 of each of the wires 61, the glue layer 70 The second surface 702 is a plane; in the processed state, the glue layer 70 fills the first gap 614, and the first surface 701 of the glue layer covers each of the first outer surfaces 611A. The second surface 702 of the adhesive layer 70 is in the form of a three-dimensional relief, and the processing refers to pressurizing and heating the planar shaped upper structure.

As can be seen from the foregoing, the present invention mainly lays down the adhesive layer 70 on one side of the base fabric layer 60, and then melts and infiltrates the adhesive layer 70 into the base fabric layer by pressure heating. a gap of 60, and at the same time, the adhesive layer 70 and the base fabric layer 60 are formed into a three-dimensional shape to form an upper having a decorative portion;

It is worth mentioning that the invention does not need to process the integrally formed decorative piece beforehand, and does not need to extract the TPU spinning fiber in advance or pre-dip the yarn, and only needs to lay the glue layer 70 in the process. The base fabric layer 60, after performing subsequent processing operations, can complete the finished product, thereby simplifying the process and reducing the manufacturing cost.

In addition, according to the needs of the user, that is, the shape of the three-dimensional decorative part on the upper is different, and the glue layer 70 of different thickness is laid, the proportion of the conventional TPU material can be improved, and the TPU material is insufficient, thereby causing the hollowing out. The situation is to greatly improve the quality of the finished products.

Furthermore, in the process of the present invention, the density and strength of the base fabric layer 60 are not changed or destroyed by the high temperature and high pressure, but after the processing, the melt of the adhesive layer 70 penetrates into the respective wires 61. Within the tiny gaps, the structural strength is further enhanced.

Moreover, since the density and strength of the base fabric layer 60 remain unchanged during the processing of the present invention, the adhesive layer 70 does not flow to the second side of the base fabric layer 60 after processing and melting. 602, further, the base fabric layer 60 is kept in contact with one side of the human body to improve the comfort of use.

"Knowledge Technology"

80‧‧‧Kib

81‧‧‧ fiber

811‧‧‧ silk

812‧‧‧TPU spinning fiber

813‧‧‧Composite wire

813A‧‧‧TPU layer

82‧‧‧ glue layer

83‧‧‧Decorative pieces

90‧‧‧Male model

91‧‧‧Female model

M‧‧‧ gap

S‧‧‧镂空部

X‧‧‧Decoration Department

"this invention. method"

A‧‧‧ laying steps

B‧‧‧Setting steps

C‧‧‧Compression heating step

D‧‧‧ demoulding step

10‧‧‧Kib

11‧‧‧ first side

12‧‧‧ second side

20‧‧‧Mold

21‧‧‧First mould

22‧‧‧ second mould

221‧‧‧Mold face

222‧‧‧ cavity

30‧‧‧Soft materials

40‧‧‧Semi-finished products

D1‧‧‧Preset distance

D2‧‧‧Preset thickness

"this invention. structure"

60‧‧‧Kebu layer

601‧‧‧ first side

602‧‧‧ second side

61‧‧‧ silk thread

611‧‧‧ outer surface

611A‧‧‧First outer surface

611B‧‧‧Second outer surface

612‧‧‧Contacts

613‧‧‧ vertex

614‧‧‧First gap

615‧‧‧Second gap

70‧‧‧ glue layer

701‧‧‧ first side

702‧‧‧ second side

Figure 1 is a schematic view of a flat upper. Figure 2 is a schematic view of a conventional decorative piece attached to a base fabric. Figure 3-1 is a schematic diagram of another conventional shoe upper manufacturing process. Figure 3-2 is a schematic view of another conventional shoe upper manufacturing process. Figure 4-1 is a schematic view of another conventional shoe upper decoration process. Figure 4-2 is a schematic view of another conventional shoe upper decoration process. Figure 5-1 is a schematic view showing the process of the upper decoration part of the present invention. Figure 5-2 is a schematic view showing the process of the upper decoration part of the present invention. 6 is a flow chart of a method for forming a shoe upper in a plane shape according to the present invention. Figure 7 is a partially enlarged schematic view showing the first state of the flat body shaped upper of the present invention. Figure 8 is a partially enlarged schematic view showing the second state of the planar body shaped upper of the present invention.

Claims (7)

A method for forming a shoe upper body, comprising: laying step, taking out a base cloth, laying a soft material on the base cloth; setting step, placing the base cloth and the soft material in a mold; pressing heating a step of closing the mold to apply an external force to the soft material and the base fabric, and heating the base fabric and the soft material to melt the soft material and combine with the base fabric to form a semi-finished product; Opening the mold and taking out the semi-finished product; the mold comprises a first mold and a second mold, the base fabric is laid on the first mold, the base fabric has a first side and a second a side surface facing the first mold, the soft material is laid on the second side of the base fabric, the second mold has a mold surface, and a mold cavity is arranged on the mold surface, and the first surface is defined The maximum distance between the two sides and the die face is a predetermined distance, and the soft material has a predetermined thickness, and the preset thickness is greater than the preset distance. The method of forming a shoe upper according to claim 1, wherein the base fabric is composed of a yarn, and the yarn is a natural fiber or a rayon. The method of forming a shoe upper according to claim 1, wherein the soft material is thermoplastic polyurethane or polyurethane. A planar body-formed upper structure comprising: a base fabric layer having a first side, the base fabric layer comprising a plurality of filaments, each of the filaments having an outer surface, each of the outer surfaces having a vertex, respectively Forming a first gap between the wires, the first gap is located on the first side; and a glue layer is bonded to the first side of the base fabric layer, the adhesive layer has a first surface, and is not processed Shape a first surface of the adhesive layer contacting the apex of each of the wires, and in the processed state, the adhesive layer fills the first gap, and the first surface of the adhesive layer covers the respective wires surface. The flat body shape forming upper structure according to claim 4, wherein the rubber layer is made of thermoplastic polyurethane or polyurethane. The planar body-formed upper structure according to claim 4, wherein the base fabric layer has a second side opposite to the first side, and each of the outer surfaces of the wires has a contact with the other of the wires a second contact portion, the outer surface defines a first outer surface and a second outer surface, wherein the first outer surface faces the first side, and the second outer surface faces the first On the two sides, a second gap is formed between the two wires, and the second gap is located on the second side, and the first gap and the second gap are blocked by the contact portion, and the glue layer is in a state after processing. The first face covers each of the first outer surfaces. The planar body-formed upper structure according to claim 4, wherein the rubber layer further has a second surface, and in the unprocessed state, the second surface of the adhesive layer is in a plane. The second side of the adhesive layer is in the form of a three-dimensional relief.