WO2014106963A1

WO2014106963A1 - Method for preparing flexible heater fabric

Info

Publication number: WO2014106963A1
Application number: PCT/KR2013/000212
Authority: WO
Inventors: 김윤정
Original assignee: Kim Youn Joung
Priority date: 2013-01-07
Filing date: 2013-01-10
Publication date: 2014-07-10
Also published as: KR101276726B1

Abstract

The present invention relates to a method for preparing a flexible heater fabric, in which the method: coats paste layer paints for a heater onto a release sheet film layer so as to prepare a release paint film, wherein the paints are prepared by mixing one or more heating components selected from a group consisting of carbon black, carbon nanotube and graphite, a binder, a stabilizer and a solvent; coats an adhesive onto fabric and adheres a release paint film onto the adhesive layer; detaches the release sheet film layer from the release paint film attached to the fabric so as to attach a paste layer to the fabric.

Description

Manufacturing method of flexible heating element fabric

The present invention relates to a method for manufacturing a flexible heating element fabric, and more particularly, a heating element paste prepared by mixing at least one heating element, a binder, a stabilizer and a solvent selected from the group consisting of carbon black, carbon nanotubes and graphite. After coating the layer paint on the release paper film layer to produce a release paint film, and after coating the adhesive on the fabric, the release paint film is adhered to the adhesive layer, and then the release paper film layer is removed from the release paint film adhered to the fabric paste layer on the fabric It relates to a method of manufacturing a flexible heating element fabric by adhering.

The moisture-permeable waterproof material is a fabric that allows moisture to pass through and water soaks into it so that it does not get wet in the rain or snow and releases sweat to help the wearer's body temperature control and maintain comfort. The moisture-permeable waterproof fabric is dense and pore-proof and has a windproof function.In the cold environment, the activity is increased, and even when sweating, it acts as a medium between the human body and the environment, controlling heat and moisture transmission so that sweat does not condense or lose body temperature. By having a fever function, it is effective in maintaining the body temperature of the wearer in a place where the body temperature is low due to sweating or activity is not high.

Products with a heating function include a heating plate, a heating mat or a clothes and a bed having a heating function. A garment having a heat generating function has a heat generating function by supplying power by weaving a general garment as the outer fabric and weaving the lining located therein with conductive carbon fiber and general fiber yarn or by attaching a planar heating element to the lining.

Winter clothing to protect body temperature has a function to focus on keeping the body temperature by weaving a variety of fibers, such as natural fibers, synthetic fibers. Therefore, because it is made of clothing having a considerable weight, a method of producing a light and good warm clothing is required.

Carbon black planar heating element has been developed and used as a means for keeping warm, and is widely used in products such as blankets and warm cushions. However, these products are a structure in which the skin heating element is inserted inside and the skin and the inner skin are sealed, and it is difficult to apply it to clothing as it is, and general washing is difficult even if applied. In addition, it is weak in elasticity and weak in physical force or impact, there is a problem that the power supply line short-circuit or the heating element itself is damaged, there is a limit in practicality.

Conventional heating garments have a problem in that it is not possible to manufacture thin and light garments by making a heating element such as a planar heating element separately and inserting the inside of the garment, and it is difficult to apply to functional clothes requiring light weight and comfort, such as climbing clothes.

The present invention improves the conventional problems by coating a release layer coating material for a heating element prepared by mixing at least one heating component, a binder, a stabilizer and a solvent selected from the group consisting of carbon black, carbon nanotubes, graphite on the release paper film layer A method of manufacturing a flexible heating element fabric by manufacturing a paint film, coating an adhesive on a fabric, adhering a release paint film to an adhesive layer, and then peeling the release paper film layer from the release paint film adhered to the fabric and adhering a paste layer to the fabric. The purpose is to provide.

The present invention is to coat a release layer film for a heating element prepared by mixing at least one heating element, a binder, a stabilizer and a solvent selected from the group consisting of carbon black, carbon nanotubes, graphite on the release paper film layer to prepare a release paint film and fabric The present invention relates to a method of manufacturing a flexible heating element fabric by adhering a release paint film to an adhesive layer after coating an adhesive to the adhesive layer, and then removing the release paper film layer from the release paint film adhered to the fabric and adhering a paste layer to the fabric.

In the exothermic fabric of the present invention, the paste layer adhered to the fabric is not easily bent, so that no creek is generated and it is not cut or broken. The heating element of the present invention is to control the amount of heat generated and the heat generating area by an electrode connection method for adhering the aluminum thin film tape at a predetermined interval from one side of the heating element fabric to the other. The heat generating fabric of the present invention can meet the characteristics of the textile products that require both sensitivity and functionality at the same time as the heating material is provided with heat excellence and increase the export of high-performance textile products in the textile market for clothing and It can be expanded to improve the function of industrial textile products.

1 is a cross-sectional view showing a release paint film from the heating element fabric of the present invention.

Figure 2 is a cross-sectional view showing a waterproofing fabric layer in the heating element fabric of the present invention.

Figure 3 is a cross-sectional view showing the adhesion of the release coating film to the waterproofing fabric in the heating element fabric of the present invention.

Figure 4 is a cross-sectional view showing that the paste coating layer on the waterproof fabric in the heating element fabric of the present invention.

5 is a plan view showing a heating element fabric of the present invention.

Figure 6 is a plan view showing a heating element fabric of the present invention.

7 is a plan view showing a heating element fabric of the present invention.

The present invention is a mixture of a binder, a stabilizer and a solvent 40 to 80, while stirring 20 to 60% by weight of one or more exothermic components selected from the group consisting of carbon nanotubes, carbon black and graphite and slowly stirring with a mixer to check the dispersion stability Preparing a heating material paste layer 10 paint prepared by stirring and mixing wt%; Preparing a high-density fabric 40 treated with waterproofing; Coating the paste layer 10 coating on the release paper film 20 and drying the paste layer 10 to prepare a release coating film 30 coated with a paste layer 10 having a dry coating thickness of 5 to 100 microns; Coating a conductive adhesive of 5 to 200 microns to the fabric 40; After attaching the paste layer 10 of the release paint film 30 to the adhesive layer 50 coated with the conductive adhesive so as to face each other, the release was performed while applying 100 to 200 ° C. heat and 0.5 to 10 KG · W / cm ² pressure. Adhering the paint film 30 to the conductive adhesive layer 50; In the method of manufacturing a flexible heating element fabric, characterized in that consisting of the step of bonding the paste layer 10 to the fabric 40 by removing the release paper film layer 20 from the release paint film 30 adhered to the fabric (40). It is about.

In the present invention, the paste layer 10 paint is 5% by weight of carbon nanotube, 15% by weight of carbon black, 5% by weight of graphite, 10% by weight of dispersion stabilizer, 20% by weight of polyurethane binder, 20% by weight of methyl ethyl ketone, toluene It is characterized in that it is prepared by mixing 10% by weight and 15% by weight of dimethylformate.

In the present invention, the conductive adhesive is selected from the group consisting of polyethylene terephthalate (PET), polyurethane (PU), thermoplastic polyurethane (TPU), polytetrafluoroethylene (PTFE), polyethylene (PE) and polypropylene (PP). Characterized in that it is made of any one material.

In the present invention, the heating element fabric includes a plurality of aluminum thin film tapes formed in a tape form, a strip form, a band form, a circular form, a heart form, a triangle form, a square form, and a polygonal form from one side of the heating element fabric to the other. It is characterized in that the heat generation temperature, the amount of heat and the area of heat generated by the electrode connection method to be bonded at intervals of 0.5 to 10cm in the vertical direction.

Aluminum thin film tape in the present invention is a method for increasing or shortening the length of each tape; Increasing or decreasing the width of each tape; And a method of narrowing or widening the upper and lower intervals of the upper tape and the lower tape; and characterized in that the heating temperature, the heating value and the heating area of the heating element fabric are controlled.

In the present invention, the aluminum thin film tape is characterized in that a plurality of punching perforations having a diameter of 0.1 to 50 mm are formed at intervals of 5 to 100 mm.

Electrode connection method in the present invention comprises the steps of cutting the heating element fabric to the desired standard; Preparing an aluminum thin film tape coated with a conductive adhesive in the form of a roll tape; Bonding a plurality of aluminum thin film tapes on one side of the heating element fabric in the up and down direction; Connecting electric wires 70 to one end of the aluminum thin film tape; And connecting a plug to the other end of the wire.

Electrode connection method in the present invention is characterized in that the temperature is controlled by connecting a temperature controller to the wire.

In the present invention, the electrode connection method is connected to an adapter or a battery, characterized in that used as a DC power source.

The present invention is a mixture of a binder, a stabilizer and a solvent 40 to 80, while stirring 20 to 60% by weight of one or more exothermic components selected from the group consisting of carbon nanotubes, carbon black and graphite and slowly stirring with a mixer to check the dispersion stability Prepare a coating material for the heating element paste layer 10 prepared by stirring and mixing the weight%, and prepare a high-density fabric 40 treated with waterproofing. If the heat generating component is 60% by weight or more, the paste layer 10 adhered to the fabric may not be bent well, and thus crease may occur, thereby cutting or breaking. If the heat generating component is less than 20% by weight, the paste layer 10 adhered to the fabric is too thin to generate calories and bends well, resulting in crevices that are cut or broken.

As shown in FIG. 1, the paste layer 10 is coated on a release paper film 20 and then dried to dry the paste layer 10 having a thickness of 5 to 100 microns, preferably 7 to 50 microns. A coated release paint film 30 is prepared.

If the thickness of the dry film is more than 100 microns, the paste layer 10 adhered to the fabric is not easily bent, so that a creek is generated and thus cut or broken. If the thickness of the dry coating is less than 5 microns, the paste layer 10 adhered to the fabric is too thin to generate calories and to bend well, resulting in crevices that are cut or broken.

As shown in FIG. 2, the present invention coats the fabric 40 with an adhesive having a thickness of 5 to 200 microns, preferably 30 to 100 microns.

If the thickness of the adhesive layer is more than 200 microns, the paste layer 10 adhered to the fabric is too thick to bend and there is a problem that the creek is cut or broken. If the thickness of the adhesive layer is 5 microns or less, the paste layer 10 adhered to the fabric is too thin, and there is a problem in that the cut or break occurs due to creep.

As shown in FIG. 3, the present invention attaches the paste layer 10 of the release coating film 30 to the adhesive layer 50 coated with an adhesive, and then heats and pressures, preferably 100 to 200 ° C., and 0.5 to 10 KG · W. The release paint film 30 is adhered to the adhesive layer 50 while applying / cm ² pressure.

As shown in FIG. 4, the present invention removes the release paper film layer 20 from the release paint film 30 adhered to the fabric 40 to bond the paste layer 10 to the fabric 40.

5 to 7, in the present invention, the heating element fabric adheres one aluminum thin film tape to the paste layer 10 of the fabric 40 from one side of the heating element fabric to the other, or a plurality of aluminum thin film tapes. The amount of heat and the area of heat generated are controlled by the electrode connection method that bonds at regular intervals.

5 to 7, in the present invention, the heating element fabric 40 is to increase or shorten the length of the aluminum thin film tape to control the amount of heat and the heat generating area.

In the present invention as shown in Figure 6, the heating element fabric 40 is to control the heat generation amount and the heating area by narrowing or widening the interval between the aluminum thin film tape 60-1 and the aluminum thin film tape 60-2.

5 to 7, in the present invention, the heating element fabric 40 has a plurality of punched holes 62 formed on the aluminum thin film tape so that the coating layer coated on the aluminum thin film tape is well coated. 5 to 7, in the present invention, the aluminum thin film tapes 60, 60-1, and 60-2 are preferably formed with perforations having a diameter of 0.1 to 10 mm at intervals of 5 to 30 mm.

In the present invention, as shown in Figure 1, the release coating film 30 is coated on the release paper film layer 20, the coating of the paste layer 10 and then dried to 100 to 200 ℃, preferably 180 ℃ using a hot plate or hot air roller. It is preferable to prepare a release coating film 30 having a dry coating thickness of 5 to 100 microns, preferably 7 to 50 microns.

3 to 4, the heating element fabric according to the present invention is polyethylene terephthalate (PET), polyurethane (PU), thermoplastic polyurethane (TPU), polytetrafluoroethylene (PTFE), polyethylene (PE) and polypropylene (PP A dry film thickness of 5 to 200 microns thick, preferably 30 to 100 microns thick, on the upper surface of the waterproofing fabric 40 to the adhesive made of any one material selected from the group consisting of The release coating film layer 30 is adhered to the upper surface of the layer 50 by applying heat and pressure of 100 to 200 ° C., preferably 180 ° C., and then the release paper film layer 20 is peeled off. It is preferable to prepare the paste layer 10 by adhering it to the upper surface of the substrate.

When the paste layer 10 is transparently coated on the waterproofing fabric 40 of the present invention, a voltage may be applied to effectively transmit current and provide heat generation characteristics. The heating element fabric of the present invention preferably emits a large amount of far infrared rays, and preferably has an antibacterial and anti-odor function. It is preferable that the heating element fabric of the present invention has a strong permeability waterproof function of about 8,000 to 10,000 water pressure of Gore-Tex level.

In the present invention, it is preferable that the heating element fabric is connected to both ends of the fabric 40 by the AC / DC combined pre-volt electrode connection method (AC / DC 1 volt to 220 volt) to generate heat by the heating element.

In the present invention as shown in Figure 5 to 7 in the electrode connection method to cut the heating element fabric to the desired standard aluminum film film tape (60, 60-1, 60-2) coated with a conductive adhesive to 1.5cm width Prepared in the form of a roll tape made of one side or two or more lines of aluminum thin film tapes from one side of the heating element fabric to the other side and then connect the wires 70 at one end of each of the aluminum thin film tapes and the wires It is preferable to connect the plug to the other end of the manufacturing.

In the electrode connection method of the present invention, the plug is connected to the power outlet to generate heat, and the plug is connected to a temperature controller to control the temperature. In addition, when the plug is connected to the adapter or the battery in the electrode connection method of the present invention can be used as a DC power source, when used as a DC power source can be used as a safe heating element without electromagnetic waves.

In the present invention, as shown in Figure 6, the aluminum thin film tape can adjust the heat generation temperature by narrowing or widening the tape interval, and can be bonded to a plurality of heat generation amount, temperature setting and heat generation position can be adjusted.

5 to 7, in the present invention, the aluminum thin film tape is preferably formed with a plurality of punching holes 62, and punching punches having a diameter of about 0.5 mm at intervals of 5 mm or punching punches having a diameter of about 5 mm at intervals of 15 mm. It is desirable to perforate to improve the electrical flow through the aluminum thin film tape and to increase the adhesive strength.

Example 1 Preparation of Paste Layer Paint

5% by weight of carbon nanotubes, 15% by weight of carbon black, 5% by weight of graphite, 10% by weight of dispersion stabilizer, 20% by weight of polyurethane binder, 20% by weight of methyl ethyl ketone, 10% by weight of toluene and 15% by weight of dimethylformate By mixing, a paste layer paint is prepared.

Example 2 Preparation of Release Paint Film

The paste layer paint is coated on the release paper film layer 20 and then dried using a hot plate or a hot air roller to prepare a release paint film 30 having a dry coating thickness of 30 microns.

Example 3 Adhesion of Release Paint Film

After the polyurethane (PU) adhesive is coated on the fabric 40 to 35 microns thick, the release paint film 30 is adhered by applying heat and pressure of 180 ° C. to the upper surface of the adhesive layer 50.

Example 4 Preparation of Heating Element Fabric

The release paper film layer 20 is removed from the release paint film 30 adhered to the top surface of the fabric 40, and then the paste coating layer 10 is adhered to the top surface of the fabric 40 to produce a heating element fabric.

<Example 5> electrode connection method to the heating element fabric

Cut the heating element fabric to the desired size. An aluminum thin film tape coated with a conductive adhesive is prepared in the form of a roll tape with a width of about 1.5 cm. The aluminum thin film tape is adhered to both ends of the heating element fabric. Connect the wire to one end of the aluminum thin film tape attached to the heating element fabric. Connect the wire to the other end of the aluminum thin film tape attached to the heating element fabric.

Tighten the crimp terminal to the wire connected to the aluminum thin film tape to ensure solid bonding. Connect the plug to the end of the wire. If you plug the wire into a power outlet, it will generate heat.

If you connect the thermostat to the plug can be used to control the temperature. When the wire is connected to the adapter or the battery, it can be used as a DC power source. The safe heating element without electromagnetic waves is completed when the cable is connected to the adapter or the battery and used as a DC power source.

Example 6 Attachment Method of Aluminum Thin Film Tape

When the aluminum film film tape is attached to the heating element fabric, the heating temperature can be set at will by narrowing or widening the gap between the two tapes. When the aluminum film film tape is attached to the heating element fabric, the heat generation amount and area can be arbitrarily adjusted by increasing or shortening the length of the bonded aluminum film film tape.

When the aluminum film film tape is attached to the heating element fabric, it is possible to freely adjust the calorific value, temperature setting and heat generation position by adhering several aluminum film film tapes at regular intervals.

In case of attaching aluminum thin film tape to the heating element fabric, punching of about 0.5mm in diameter and 5mm in diameter or punching in about 5mm in diameter is prepared in 15mm intervals in order to increase vertical conduction of the aluminum thin film tape and adhesion to upper and lower substrates. .

Claims

20 to 60% by weight of one or more exothermic components selected from the group consisting of carbon nanotubes, carbon black and graphite are milled, and then slowly stirred with a mixer to check the dispersion stability and 40 to 80% by weight of the mixture of binder, stabilizer and solvent. Preparing a heating material paste layer 10 paint prepared by stirring and mixing;

Preparing a high-density fabric 40 treated with waterproofing;

Coating the paste layer 10 coating on the release paper film 20 and drying the paste layer 10 to prepare a release coating film 30 coated with a paste layer 10 having a dry coating thickness of 5 to 100 microns;

Coating a conductive adhesive of 5 to 200 microns to the fabric 40;

After attaching the paste layer 10 of the release paint film 30 to the adhesive layer 50 coated with the conductive adhesive so as to face each other, the release was performed while applying 100 to 200 ° C. heat and 0.5 to 10 KG · W / cm 2 pressure. Adhering the paint film 30 to the conductive adhesive layer 50;

A method of manufacturing a flexible heating element fabric, comprising the step of adhering the paste layer 10 to the fabric 40 by removing the release paper film layer 20 from the release paint film 30 adhered to the fabric 40.
The method of claim 1, wherein the paste layer coating material is carbon nanotube 5% by weight, carbon black 15% by weight, graphite 5% by weight, dispersion stabilizer 10% by weight, polyurethane binder 20% by weight, methyl ethyl ketone 20% by weight, toluene Method for producing a flexible heating element fabric, characterized in that the mixture is prepared by mixing 10% by weight and 15% by weight of dimethylformate.
The method of claim 1, wherein the conductive adhesive is made of polyethylene terephthalate (PET), polyurethane (PU), thermoplastic polyurethane (TPU), polytetrafluoroethylene (PTFE), polyethylene (PE) and polypropylene (PP) Method for producing a flexible heating element fabric, characterized in that made of any one material selected from the group.
The method of claim 1, wherein the heating element fabric is a tape, strip, band, circular, heart-shaped, triangular, rectangular and polygonal form of a plurality of aluminum thin film tape formed on one side of the heating element fabric A method of manufacturing a flexible heating element fabric, characterized in that the heating temperature, the amount of heat and the area of heating are controlled by an electrode connection method of adhering at intervals of 0.5 to 10 cm across one side.
The method of claim 4, wherein the aluminum thin film tape is a method of increasing or shortening the length of each tape;

Increasing or decreasing the width of each tape; And

A method of manufacturing a flexible heating element fabric, characterized in that the heating temperature, the heating value and the heating area of the heating element fabric is controlled by narrowing or widening the vertical gap between the upper and lower tapes.
The method of manufacturing a flexible heating element fabric according to claim 4, wherein the aluminum thin film tape has a plurality of punched perforations having a diameter of 0.1 to 50 mm at intervals of 5 to 100 mm.
The method of claim 4, wherein the electrode connection method comprises the steps of cutting the heating element fabric to a desired standard;

Preparing an aluminum thin film tape coated with a conductive adhesive in the form of a roll tape;

Bonding a plurality of aluminum thin film tapes on one side of the heating element fabric in the up and down direction;

Connecting electric wires 70 to one end of the aluminum thin film tape;

Connecting the plug to the other end of the wire; the method of manufacturing a flexible heating element fabric, characterized in that consisting of.
The method of manufacturing a flexible heating element fabric according to claim 4, wherein the electrode connection technique controls the temperature by connecting a temperature controller to the wire.
The method of manufacturing a flexible heating element fabric according to claim 4, wherein the electrode connection method is used as a DC power source connected to an adapter or a battery.