TWI768505B - Sealing structure and method of fabric seam - Google Patents

Abstract

The present invention provides a sealing structure and method of fabric seam comprising a sewing thread and more than one sheets. The sewing thread is a thread expanding when heated. The sewing thread sews more than one sheet, and forming more than one seams between more than one sheets. The sewing thread fills the seams when the sewing thread received a heat treatment, and becomes the sealing structure that achieves the effect of waterproof. The sealing structure and method of fabric seam can be applied to multiple purposes, such as the seams of a tent, the seams of a raincoat, or the seams of a functional clothe.

Description

Seam filling structure and method of fabric sewing thread

A sewing method for fabric sewing thread, particularly a caulking structure and method for fabric sewing thread.

In response to Taiwan's humid and rainy weather and cold winter weather, high-performance clothing with comprehensive functions such as waterproof, breathable, and heat storage has been very popular among consumers in recent years. The biggest feature of this high-performance clothing is to protect a user from It can adapt to various climatic conditions outdoors, and engage in outdoor activities safely and conveniently. Therefore, waterproof and windproof functions have almost become essential items for this high-performance clothing.

It is known that the high-performance clothing is made by using more than one functional textile material to sew each other, but the seam between the two functional textile materials often becomes a water seepage of the high-performance clothing. The textile industry of the other hand uses a hot air laminating machine or a hot pressing technology to fuse a waterproof adhesive strip to the seam of the car to fill the gap of the seam of the car to achieve the effect of complete waterproofing.

Although the waterproof rubber strip can achieve waterproof effect to meet the functional requirements of the product, with the long-term use of the waterproof rubber strip, the rubber surface of the waterproof rubber strip is easy to become brittle and fall off, resulting in the exposed seam of the car and affecting the performance of the high-performance clothing. The waterproof effect not only causes consumers to lose money, but also wastes materials and materials.

In order to solve the technical problem of permanent waterproofing at the seams where more than one functional textile fabrics are sewed to each other, the present invention provides a caulking structure and method for fabric sewing threads, comprising: a sewing thread And one or more sheets, the sewing thread is a filament that can be expanded when exposed to heat, the sewing thread sews one or more of the sheets, and more than one sewing place is generated between the more than one sheet, and the sewing thread passes through a When expanded by heat treatment, the sewing thread fills more than one sewing position of the sewing thread to form a caulking structure of the sewing thread of the fabric.

Wherein, the sewing thread includes a thermoplastic polymer and a foaming agent, and the thermoplastic polymer component can be selected from thermoplastic polyurethane, thermoplastic polyester elastomer, polyolefin elastomer, thermoplastic vulcanizate, polystyrene elastomer, Polyethylene, polypropylene, polybutylene terephthalate, polyethylene terephthalate, polyethylene terephthalate, polyolefin, polyamide, polystyrene, polyvinyl chloride, Ethylene/vinyl acetate copolymer or a mixture of the above components, the foaming agent has the property of foaming when heated, the foaming agent can be a physical foaming agent, and the foaming agent can be selected from the following three types. In the thermoplastic polymer: 1. The blowing agent is an inert gas, and the blowing agent is uniformly incorporated into the thermoplastic polymer in a pressurized state; 2. The blowing agent is a low boiling point solution; 3. The foaming agent is a plurality of hollow microspheres, the hollow microspheres are coated with a gas, wherein, the hollow microspheres are made of a high molecular polymer, and the high molecular polymer can be selected from polyethylene, polyethylene Propylene, polystyrene, polycaprolactone, polylactic acid, polyglycolic acid, polyacrylic acid, polymethyl methacrylate, etc. or a mixture of the above components, the gas can be selected from hydrocarbons, hydrofluoroalkanes (HFCs), carbon dioxide , nitrogen or a mixture of the above components.

Further, the sheet includes a non-porous hydrophilic membrane layer.

Further, the sheet includes a microporous hydrophobic membrane layer.

Further, the sheet is a high density fabric.

Further, the sheet is a waterproof plastic cloth.

Further, the sewing thread contains a pigment powder.

A caulking method for fabric sewing thread, the steps of which include: preparing a sewing thread, the sewing thread is a filament that can expand when heated, and the sewing thread is in an unexpanded state; The above sheets are sewn, so that one or more of the sheets have more than one stitching, and the stitching has more than one pore; After the sewing thread expands, more than one hole is filled, and the sewing thread achieves the waterproof effect.

Among them, the heat treatment is a hot air technology.

Among them, the heat treatment is a hot pressing technique.

The sewing thread sews more than one of the sheets, each of the sheets produces more than one sewing place, the sewing place contains more than one aperture, and a heat treatment is given to the sewing thread to expand the sewing thread, The expanded sewing thread further fills a plurality of the pores, so that the caulking structure of the fabric sewing thread achieves a waterproof effect. The car seam of a shed, the car seam of a raincoat, or the car seam of a high-performance garment.

As shown in FIG. 1 to FIG. 3 , which are a caulking structure and method for a fabric sewing thread provided by a preferred embodiment of the present invention, the caulking structure of the fabric sewing thread includes a sewing thread 10 and more than one sewing thread Sheet material 20, the sewing thread 10 is a wire that can be expanded but not yet expanded when heated, the sewing thread 10 sews more than one sheet material 20, and each sheet material 20 produces more than one sewing point 21 , the sewing part 21 contains more than one hole 22, and a heat treatment is given to the sewing thread 10 to make the sewing thread 10 expand, and the expanded sewing thread 10 further fills more than one of the voids 22, so that the fabric is sewn The caulking structure of the thread achieves the effect of waterproofing. The caulking structure of the fabric sewing thread can be applied to various purposes, such as being applied to the car seam of a tent or the car seam of a raincoat. In this embodiment, the fabric The caulking structure of the sewing thread is applied to the sewing part of a high-performance garment 30 .

The sewing thread 10 generally refers to the thread that can expand when exposed to heat. The sewing thread 10 includes a thermoplastic polymer and a foaming agent; the shape of the sewing thread 10 is not limited, and can be a core-sheath type, a Island type or a multi-layer type. The thermoplastic polymer component can be selected from thermoplastic polyurethane, thermoplastic polyester elastomer, polyolefin-based elastomer, thermoplastic vulcanizate, polystyrene-based elastomer, polyethylene, polypropylene, polybutylene terephthalate, polypara Ethylene phthalate, polyethylene terephthalate, polyolefin, polyamide, polystyrene, polyvinyl chloride, ethylene/vinyl acetate copolymer or a mixture of the above components. The foaming agent is uniformly integrated into the thermoplastic polymer. The foaming agent has the property of foaming when heated. The foaming agent can be a physical foaming agent. In thermoplastic polymer: 1. The blowing agent is an inert gas, and the blowing agent is uniformly incorporated into the thermoplastic polymer under a pressurized state; 2. The blowing agent is a low-boiling point solution; 3. The The foaming agent is a plurality of hollow microspheres, and the hollow microspheres are coated with a gas, wherein, the hollow microspheres are made of a high molecular polymer, and the high molecular polymer can be selected from polyethylene, polypropylene , polystyrene, polycaprolactone, polylactic acid, polyglycolic acid, polyacrylic acid, polymethyl methacrylate, etc. or a mixture of the above components, the gas can be selected from hydrocarbons, hydrofluoroalkanes (HFCs), carbon dioxide, Nitrogen or a mixture of the above.

The material and manufacturing method of the sheet 20 are not limited, and the sheet preferably has a waterproof effect. The sheet 20 can be a waterproof plastic cloth, which can be made of a raincoat or a tent; the sheet 20 can be a fabric, and the surface of the fabric is coated or attached with a film structure , the film structure can be a non-porous hydrophilic film layer or a microporous hydrophobic film layer, the above-mentioned film layer structure can make the sheet 20 achieve better moisture permeability and water resistance; the sheet The material 20 can also be a high-density fabric, and the balance of moisture permeability and waterproofness can be achieved by controlling the size of the structural pores of the sheet material 20 .

As shown in FIG. 4 , a method for caulking a fabric sewing thread of the present invention includes the following steps. Step 11, prepare a thermoplastic polymer; Step 12, add a foaming agent, and uniformly mix the foaming agent in the thermoplastic polymer to form a thermoplastic mixture; Step 13, make a sewing thread 10, and the thermoplastic mixture Draw yarn, and weave to form a sewing thread 10, the sewing thread 10 is in a form that has not been foamed; Step 14, sew more than one sheet 20, and use the sewing thread 10 to sew more than one sheet 20 , one or more of the stitching 21 of the sheet 20 produces more than one hole 22, and the stitching method of the stitching line 10 to stitch two sheets 20 is not limited; Step 15, heat treatment, through a hot air blower or heat The heat treatment is applied to the sewing thread 10 by pressing technology and other technologies. The sewing thread 10 expands after being heated, and the sewing seam 10 expands at the sewing seam 21, resulting in the expanded sewing thread 10 filling up more than one of the pores. 22 effects.

In the second preferred embodiment of the present invention, the sewing thread 10 can be a core-sheath structure, the core layer of the sewing thread 10 is provided with a wire, and the sheath layer of the sewing thread 10 comprises the thermoplastic polymer and The foaming agent, according to the material properties of the wire, makes the sewing thread 10 rich in various properties. For example, the thread 11 contains a nylon, so that the sewing thread 10 has rigidity and is not easy to break; or the thread is selected as A thermal insulation wire, so that the sewing thread 10 has thermal insulation effect when applied to a product.

In different embodiments, the sewing thread 10 is not limited to be woven from the thermoplastic compound drawn yarn, and the sewing thread 10 may include yarns of other materials blended with the thermoplastic compound, for example, the thermoplastic compound It is mixed with a pure cotton yarn, so that the sewing thread 10 can show a softer and more comfortable touch; or the sewing thread 10 contains carbon fiber or negative ions and other materials, so that the sewing thread 10 has a deodorizing effect.

When the thermoplastic mixture is mixed and manufactured, a pigment powder can be further added to the thermoplastic mixture, so that the sewing thread 10 has color.

10: sewing thread 20: Sheet 21: Car Seam 22: Pore 30: High-performance clothing

1 is a schematic diagram of a preferred embodiment of the present invention FIG. 2 is a structural diagram of the caulking of the preferred embodiment of the present invention FIG. 3 is a schematic diagram of a preferred embodiment of the present invention for caulking Figure 4 is a step diagram of a preferred embodiment of the present invention

20: Sheet

21: Car Seam

30: High-performance clothing

Claims (9)

A caulking structure for a fabric sewing thread, comprising: a sewing thread, which is a wire that can expand when heated; and one or more sheets, one or more sheets are sewn by the sewing thread, one There are more than one stitching between the above sheets, and when the stitching is expanded by a heat treatment, the stitching fills the one or more stitching to form a caulking structure of the fabric stitching. The caulking structure for a sewing thread of a fabric according to claim 1, wherein the sewing thread comprises: a thermoplastic polymer, and the thermoplastic polymer component can be selected from thermoplastic polyurethane, thermoplastic polyester elastomer, polyolefin elastomer, Thermoplastic vulcanizates, polystyrene elastomers, polyethylene, polypropylene, polybutylene terephthalate, polyethylene terephthalate, polyethylene terephthalate, polyolefins, polyamides Amine, polystyrene, polyvinyl chloride, ethylene/vinyl acetate copolymer, or a mixture of the foregoing; and a blowing agent uniformly incorporated into the thermoplastic polymer, the blowing agent comprising characteristics of bubbles. As claimed in claim 1 or 2, the caulking structure for fabric sewing thread, the sheet material comprises a non-porous hydrophilic film layer. As claimed in claim 1 or 2, the caulking structure of fabric sewing thread, the sheet material comprises a microporous hydrophobic film layer. As claimed in claim 1 or 2, the caulking structure of fabric sewing thread, the sheet is a high-density fabric. According to the caulking structure of the fabric sewing thread according to claim 1 or 2, the sheet is a waterproof plastic cloth. According to the caulking structure of the fabric sewing thread according to claim 1 or 2, the sewing thread contains a pigment powder. The caulking structure for a fabric sewing thread as claimed in claim 1 or 2, wherein the sewing thread is a core-sheath structure, the core layer of the sewing thread is provided with a wire, and the sheath layer of the sewing thread comprises the thermoplastic polymer and the blowing agent. A caulking method for fabric sewing thread, the steps of which include: preparing a sewing thread, the sewing thread is a filament that can expand when heated, and the sewing thread is in an unexpanded state; The above sheets are stitched, so that one or more of the sheets produce more than one stitching, and the stitching generates more than one void; and a heat treatment is given to the stitched thread, and the stitched thread is formed into an expanded state after the heat treatment, the After the sewing thread expands, more than one hole is filled, and the sewing thread achieves the waterproof effect.

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