JPH07216618A - Structure for applying wappens to waterproofed fabric and method for its application - Google Patents

Abstract

PURPOSE:To firmly apply wappens to a fabric to which waterproofing treatment is carried out. CONSTITUTION:This structure for applying wappens to a waterproofed fabric is obtained by constituting a bottom force 20 mating with a top force 10 of, e.g. protruding parts 22 in nearly a similar shape corresponding to recessed parts of the top force 10 and recessed parts 23 in nearly a similar shape corresponding to the protruding parts 12, locating and arranging a laminate 4 in which a surface material 3 such as polyvinyl chloride is formed on the surface of a polyurethane 2 and the waterproofed fabric 7 in which a waterproofing film 6 is applied to the surface of a fabric 5 by water repellent finishing, etc., between the top and the bottom forces 10 and 20, thereby driving a high-frequency heater, lowering the top force 10 in a heated state thereof, preparing wappens l by molding of the laminate 4, simultaneously regulating the thickness of the polyurethane 2 to a nearly constant one and firmly applying the wappens to the waterproofed fabric 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to patches for sticking to a waterproofed cloth and a sticking method for surely sticking patches.

[0002]

2. Description of the Related Art Patches, emblems, company emblems, name plates (hereinafter referred to as patches), etc. may be attached to the chest and arms of clothes such as uniforms, the front and side of hats, and the like. The above-mentioned uniforms, hats and the like are generally made of cloth, and most of the patches are made of polyvinyl chloride, and it is common to use a method in which both are bonded and integrated by using an adhesive. However, even if the cloth is bonded to patches such as Renui coat made of waterproofed cloth, for example, since the silicone water repellent is applied to the cloth, be sure to use adhesive or the like. There was a problem that they could not be joined, and in general, this type of patch was sewn to the fabric.

Therefore, the applicant of the present invention sewed patches by forming an overlapping surface of the patches with the cloth with polyurethane, melting the polyurethane by high-frequency heating, allowing the cloth to penetrate into the texture of the waterproofed cloth. We have already developed a method of sticking together without attaching (Japanese Patent Application No. 60-1).
No. 25642). As shown in FIG. 7, the method of attaching the patches is such that a waterproof cloth 100 having a waterproof film 102 formed on the surface of a cloth 101 is placed on a table 103,
A polyurethane 105 covered with an exterior material 104 is placed on a predetermined position of the waterproof cloth 100, a mold 106 having a high-frequency heating device is lowered, and the exterior material 104 is molded according to the shape of the mold 106 and the polyurethane 105 is formed. Is melted by heating and the melted polyurethane 105 is used as an adhesive to penetrate into the texture of the cloth 101 of the waterproof cloth 100 to form the outer shape of patches and at the same time the waterproof cloth 1
It was a sticking method such as welding to 00.

[0004]

However, in the pasting method already applied for, the waterproof cloth 100 for pasting patches is placed on the flat table 103, and the die 106 descending from above is used as it is. The exterior material 104 is molded and the polyurethane 105 is heated and melted.
Due to the unevenness of 06, a polyurethane portion having a small thickness and a polyurethane portion having a large thickness are formed. Therefore, the pressing force of the polyurethane 105 against the cloth 101 is changed by the unevenness of the mold 106, the penetration state of the melted polyurethane into the cloth 101 is changed, the sticking strength of the patches on the cloth 101 is varied, and the sticking strength is There was a problem that patches were easily peeled off in the lower part of.

Further, if the formed polyurethane patch 105 has a difference in thickness, there is a problem in that the strength of the thin portion is reduced and bending is likely to occur.

[0006]

In order to solve the above problems, the structure for attaching patches to the waterproof cloth of the present invention is
It is characterized in that a thermoplastic synthetic resin laminated on the back surface side of the surface material of the emblem is applied to the waterproofed cloth so as to have a substantially uniform thickness.

Further, the first method for attaching patches to the waterproof cloth of the present invention is to apply the patches, at least the overlapping surface of which is made of thermoplastic synthetic resin, to the waterproof cloth. A method of sticking patches to a waterproof cloth that is made by stacking and applying the above patches to the cloth ground by high-frequency heating, and presses the patches under the waterproof cloth. It is characterized by arranging a lower mold having concaves and convexes of a shape similar to that of the upper mold with a device, closing the upper and lower molds, and molding and attaching patches.

Further, in the second pasting method, patches that have at least the overlapping surface with the cloth made of thermoplastic synthetic resin are overlaid on the waterproof cloth, and the patches are applied by high frequency heating. A method of attaching patches to a waterproof cloth that is integrally attached to the upper mold with a high-frequency heating device that presses the patches on the lower side of the waterproof cloth and has a shape similar to that of the upper mold. The lower mold having the unevenness is arranged, and the sheet material having the adhesive layer is sandwiched between the patch and the waterproofed cloth, and the upper and lower molds are closed to interpose the adhesive layer with the adhesive. It is characterized in that it is formed and pasted.

[0009]

In the sticking structure of the patches to the waterproof cloth of the present invention, the patch is formed by sticking the thermoplastic synthetic resin on the back surface of the surface material of the patches to a substantially uniform thickness on the waterproof cloth. Since it is integrated, the entire portion where the patches are attached has a uniform thickness, which increases flexibility and stabilizes the strength against bending and the like.

In the first method for attaching patches to the waterproof cloth of the present invention, at least the overlapping surface with the cloth is formed of the thermoplastic synthetic resin between the upper mold and the lower mold with the high frequency heating device. When the upper and lower molds are closed after arranging the patches and the waterproofed cloth, the unevenness formed on the upper mold and the unevenness of the upper mold of the lower mold and the substantially similar shape are positioned. As a result, the heat-melted thermoplastic synthetic resin has a constant penetration into the cloth texture, and the patches and the waterproof cloth are welded over the entire surface with a substantially uniform thickness, and the bonding strength between the two is increased. Moreover, since the patches are formed with a substantially uniform thickness, the patches are attached with a constant strength against bending and the like.

Further, in the second pasting method, when the upper and lower molds are closed, the sheet material having the adhesive layer is sandwiched between the patches and the waterproofed cloth, and then the upper and lower molds are closed. The patches and the waterproof cloth are welded over the entire surface with the adhesive layer interposed therebetween with a substantially uniform thickness, and the bonding strength between the two is further enhanced. Similarly, since the patches are formed with a substantially uniform thickness, the patches are attached with a constant strength against bending and the like.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic perspective view showing a structure for attaching patches to a waterproof cloth according to an embodiment of the present invention, and FIG. 2 is a schematic sectional view taken along the line AA of FIG. .

The present invention has a structure in which a patch 1 composed of polyurethane 2 and a surface material 3 is attached to a waterproof cloth 7 having a waterproof film 6 formed on the surface of a cloth 5. For example, a surface material 3 such as polyvinyl chloride having a pattern formed on the surface of a thermoplastic synthetic resin such as polyurethane 2 is laminated. The thickness of the polyurethane 2 on the back surface side of the surface material 3 is a desired character for which the thickness of the surface material 3 is designed,
Corresponding to the concavo-convex pattern such as figures and symbols, the concavo-convex state is formed with a substantially uniform thickness.

The waterproof cloth 7 to which the patches 1 are attached is a waterproof cloth 6 having a waterproof film 6 formed on the surface of a polyester cloth 5, and the unevenness formed by the polyurethane 2 of the patches 1 is provided. Corrugated corresponding to the pattern,
As a result, the back surface side of the waterproof cloth 7 is a non-flat surface.

In the above-mentioned pasting structure, since the polyurethane 2 which is the bonding layer between the patches 1 and the waterproof cloth 7 has a substantially uniform thickness according to the uneven pattern of the surface material 3, the patches 1 are pasted The entire portion has a uniform thickness, which increases flexibility and stabilizes the strength against bending and the like. Since the patches 1 are not sewn, a needle hole or the like is not formed by stitching and the function of the waterproof cloth 7 is not impaired. Also, the surface material 3 of the patch 1
In accordance with the uneven pattern, the back surface side of the waterproof cloth 7 is correspondingly uneven and has a non-flat surface shape, so that the part to which the patches 1 are attached is surely judged from the back surface side of the waterproof cloth 7. it can.

FIG. 3 is a schematic perspective view for sequentially explaining a method of attaching patches to the waterproof cloth according to one embodiment of the present invention, and FIG. 4 is taken along the line BB of FIG. FIG.

In the figure, reference numeral 10 is an upper mold which has a built-in high-frequency heating device and is movable up and down. As shown in FIG. 4, the lower abutment surface has, for example, designed desired characters, figures,
A concave portion 11 and a convex portion 12 for forming a symbol or the like are formed. The lower mold 20 that abuts the upper mold 10 is, for example,
The flat table 21 is composed of a projection 22 having a substantially similar shape corresponding to the recess 11 of the upper die 10 and a depression 23 having a similar shape corresponding to the projection 12. That is,
When the upper die 10 and the lower die 20 are brought into abutment with each other, the protruding portion 22 of the lower die 20 forms a gap in the concave portion 11 of the upper die 10 and the convex portion 12 of the upper die 10 enters the depressed portion 23 of the lower die 20. There is a gap and they are in a state of overlapping.

Patches are manufactured by the upper mold 10 and the lower mold 20 of the present invention in the following procedure. First, as shown in FIGS. 3 and 4, the waterproof cloth 7 is placed on the lower mold 20 formed on the table 21, and the polyurethane 2 is placed at a predetermined position.
A laminated body 4 composed of
Place it just below the abutment surface of.

When the laminate 4 and the waterproof cloth 7 are positioned between the upper and lower molds 10 and 20, the high frequency heating device is driven to lower the upper mold 10 in a heated state. As a result, the surface material 3 and the polyurethane 2 on the surface are molded into a desired shape according to the shapes of the concave portions 11 and the convex portions 12 of the upper mold 10. At this time, the back surface side of the laminated body 4 is lifted to the front surface side by the protrusion 22 and the depression 23 formed in the lower mold 20, and the laminated body 4 is molded while maintaining a substantially uniform thickness, When the melted polyurethane 2 permeates the entire surface of the texture of the cloth 5 of the waterproof cloth 7, the patches 1 and the waterproof cloth 7 are unevenly formed with a substantially uniform thickness as shown in FIG. At the same time, it will be firmly welded and fixed.

In the present invention, since the outer shapes of the abutting surfaces of the upper mold 10 and the lower mold 20 are substantially similar to each other and a gap portion is formed between them, the high frequency heating device in the upper mold 10 is formed. The polyurethane 2 melted by the heating by the drive is pressed with substantially the same clamping force over the whole, and the thickness of the portion where the patches 1 including the waterproofing cloth 7 is formed is substantially uniform, so that the patches 1 are strong at the same time as molding. Will be attached to. Therefore, like conventional patches,
The strength of the patches 1 is less likely to decrease due to variations in the bonding strength at the part where the patches 1 are bonded to the waterproof cloth 7, and the bonded state can be maintained reliably without the risk of partial peeling.
Further, since the patches 1 have no variation in thickness and are attached integrally with the waterproof cloth 7, flexibility is increased and bending and bending are also improved.

FIG. 5 shows a second pasting method of the present invention. This pasting method is different from the above-mentioned first pasting method in that the sheet material 8 is positioned and arranged between the laminate 4 and the waterproof cloth 7 between the upper and lower molds 10 and 20. As the sheet material 8, all materials are preferably used, and the adhesive layer 81 having all the pasty elements is formed on both surfaces thereof.

Even with this sticking method, when the upper mold 10 is lowered in a heating state in which the high-frequency heating device is driven, the surface material 3 on the surface according to the shapes of the concave portions 11 and the convex portions 12 of the upper mold 10.
The polyurethane 2 and the polyurethane 2 are formed into a desired shape via the adhesive layer 81, the adhesive force of the adhesive layer 81 of the sheet material 8 is added, and the patches 1 are more surely attached to the waterproof cloth 7. become.

In this case, even if the waterproof cloth 7 has the waterproof film 6 formed on the surface of the nylon-based cloth 5, the patches 1 and the waterproof cloth 7 are formed into an uneven shape with a substantially uniform thickness. At the same time, the adhesive layer 81 makes it more firmly welded and fixed.

In the above embodiment, the method of forming by lowering the upper mold 10 has been described, but the lower mold 20 can be raised, and the lower mold 20 and the lower mold 20 are simultaneously raised. Good. Further, the patches 1 are not limited to the laminate 4 including the polyurethane 2 and the surface material 3 such as polyvinyl chloride,
If the joint surface with the waterproof cloth 7 is a thermoplastic synthetic resin,
The configurations of the polyurethane 2 and its surface are not particularly limited.

[0026]

EFFECTS OF THE INVENTION As is apparent from the above description, in the present invention, patches of the synthetic resin on the back surface of the surface material of patches are applied with a substantially uniform thickness on the waterproof cloth. Since it is integrated, the entire portion where the patches are attached has a uniform thickness, which increases flexibility and stabilizes the strength against bending and the like. In addition, when the overlapping surface between the waterproofed fabric and the fabric is formed of thermoplastic synthetic resin and the patches are closed with the upper mold and the lower mold, the unevenness of the upper mold has a substantially similar shape. With the lower mold, the patches are molded together with the waterproofed cloth to a uniform thickness, and at the same time, the molten synthetic thermoplastic resin is penetrated into the cloth and the patches are waterproofed. It has flexibility and can be firmly attached to cloth. Furthermore, by interposing a sheet material having an adhesive layer formed between the patch and the waterproof cloth, the effect of further strengthening the bonding strength is achieved.

[Brief description of drawings]

FIG. 1 is a schematic perspective view for explaining a structure for attaching patches to a waterproof cloth according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view taken along the line AA of FIG.

FIG. 3 is a schematic perspective view for explaining a method for attaching patches to the waterproof cloth according to the first embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view taken along the line BB of FIG.

FIG. 5 is a schematic cross-sectional view for explaining a method of attaching patches to the waterproof cloth according to the second embodiment of the present invention.

6 is a schematic cross-sectional view of FIG.

FIG. 7 is a schematic cross-sectional view showing a method for pasting patches on a conventional waterproof cloth.

[Explanation of symbols]

 1 Patches 2 Thermoplastic synthetic resin 5 Cloth 7 Waterproof cloth 10 Upper mold 20 Lower mold

Claims (4)

[Claims] 1. A waterproof cloth, characterized in that a thermoplastic synthetic resin to be laminated on the back surface side of a surface material of a patch, etc., is adhered and integrated into a waterproof cloth with a substantially uniform thickness. Sticking structure of the patches. 2. A waterproofing treatment in which patches which are at least overlapped with a cloth made of a thermoplastic synthetic resin are superposed on a waterproofed cloth and the patches are attached to the cloth by high-frequency heating to be integrated. A method for sticking patches on a cloth, wherein a lower mold having a concave and convex shape substantially similar to that of an upper mold with a high-frequency heating device for pressing the patches is provided on the lower side of the waterproofed cloth. A method for sticking patches on a waterproof cloth, which is characterized in that the patches are arranged, the upper and lower dies are closed, and patches are formed and stuck. 3. A thermoplastic synthetic resin, which is laminated on the back surface side of a patch surface material, is applied to a waterproofed cloth with an adhesive agent layer so as to have a substantially uniform thickness and is integrally attached. Features a structure for attaching patches to waterproof treated cloth. 4. A waterproofing treatment in which patches that are at least overlapped with a cloth made of a thermoplastic synthetic resin are placed on a waterproofed cloth, and the patches are attached to the cloth by high-frequency heating to be integrated. A method for sticking patches on a cloth, wherein a lower mold having a concave and convex shape substantially similar to that of an upper mold with a high-frequency heating device for pressing the patches is provided on the lower side of the waterproofed cloth. Place the sheet material having an adhesive layer between the patch and the waterproofed cloth, and close the upper and lower molds to form and paste the patch with the adhesive layer interposed. A method of attaching patches to a waterproof treated fabric.