JPH02215078A - Electric blanket main body and manufacture thereof - Google Patents

Abstract

PURPOSE:To dispense with the complex and high adhesive technique and prevent the loss of the draping property of a base material by sticking the back face of a plush fabric and a flexible electric wire with a hot-melt adhesive. CONSTITUTION:A mire-knitted blanket base material 3 is put on a wiring pallet 2 with its pile faced downward, flexible heat-sensitive heater wire 4 is arranged using pins as a jig, an upper side mire-knitted blanket base material 5 is put on it, and they are pressed with a pressing plate 6. The voltage is applied to an outer-bound electrode and heating wire across both ends of the flexible heat-sensitive heater wire, the heater wire is excited and heated, a polyethylene hot-melt adhesive is melted, and the mire-knitted blanket base materials 3 and 5 are melted. A beautiful mire-knitted electric heating blanket main body with excellent draping property, heat preserving property and hand feeling is obtained. It can be efficiently stuck in a short time with no waste in the material and man-hour.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the structure of an electric blanket body made of a napped base fabric, such as a Maire knitted blanket or a boa blanket, and a method for manufacturing the same.

BACKGROUND OF THE INVENTION Generally, electric blankets have a bag construction in order to insert heating wires into the fabric used. This is called bound double weave, and when weaving the fabric, warp or weft threads are used to create a knot between two pieces of fabric, creating a bag-like shape.

This fabric is then raised through a raising process to create a blanket fabric. However, raised base fabrics such as Maya fiber blankets and boa blankets are completely different from this process, in which a pair of raised base fabrics are knitted.
Create two pieces of napped base fabric by cutting a slice in the middle. Alternatively, there is a method of knitting while intertwining cotton with knitting thread. Lay the back sides together and sew the ends together with the hem fabric to make -2 blankets. Electric blankets using this napped base fabric cannot be connected to wire the heater, so there are only a few examples of electric blankets made to date. The electric blanket itself was used.

Problems to be Solved by the Invention As described above, when attempting to construct an electric blanket body using napped base fabric, there were three major problems as shown below.

(1) Since it cannot be made into a bag like conventional blanket fabrics, flexible electric wires cannot be wired thereto.

(2) Napped base fabric has long napped piles and has good insulation properties, and it is very difficult to bond two back sides together with hot melt adhesive using an adhesive method that uses external heating such as a heat press. It was difficult. Also, the standing hair fell down and spoiled the texture.

(3) A method of forming a bond in advance with hot melt adhesive and inserting a flexible heating wire is also considered, but this requires a large amount of adhesive, the bonding process is complex, and requires advanced bonding technology. .

Additionally, this method uses a large amount of adhesive, which has the disadvantage of impairing the drapability of the fabric.

The present invention provides an electric blanket body made of an excellent napped base fabric that easily solves these problems, and a method for manufacturing the same.

Means for Solving the Problems The napped base fabric used in the present invention refers to Mayer knitted blanket base fabric, boa knitted blanket base fabric, boa woven blanket base fabric, high pile base fabric, etc. It is constructed by bonding the back side of the cloth and a flexible electric wire built into it with a hot melt adhesive, and the outermost shell of the flexible electric wire is formed by heating the flexible electric wire with electricity. Another major feature is that the hot-melt adhesive layer is melted and bonded. In addition, when forming a hot melt layer on the back surface of the napped base fabric, it can be melted and bonded by heating and energizing a flexible electric wire. The hot melt adhesive used for this has strong adhesive strength at temperatures below 80°C, and
Adhesive materials with a melting point of 0-150°C are preferred, 150
Adhesion at temperatures higher than °C is undesirable as it may cause deformation or melting of the flexible electric wire itself. Examples include vinyl acetate copolymers, polyamides, polyesters, polyurethanes, and copolymers thereof.

Function: The napped base fabric used in the present invention has good heat insulation properties and has long and thin napped piles. Therefore, even if this is subjected to a hot pressing process, heat conductivity is poor and heat is difficult to reach the inside, and the beautiful raised pile collapses due to heating and pressing, resulting in a very poor texture. In the case of pressurization at room temperature, even if piloerection is a special case, it will return to its original state as soon as the pressure plate is removed. For this reason, the present invention heats only the built-in flexible electric wire by applying electricity under pressure at room temperature, melts the hot melt adhesive, and bonds the flexible electric wire to the back surface of the napped base fabric. It is something that makes you The good heat insulation properties of the raised base fabric are 1, which works well at this time, allowing the hot melt adhesive on the outside of the flexible wire to be efficiently melted and bonded.

Example Next, the present invention will be explained using examples.

Example 1 Meyer blanket fabric 3 was placed with the pile facing downwards as shown in Figure 1 on a wiring pallet 2 with pins l of approximately 0.7 mm φ, and flexible heat-sensitive heater wires 4 were attached to the pins. I wired it using it as a jig. The upper Meyer blanket fabric 5 was placed on top of it, and pressure was applied from above using a pressure plate 6. The flexible thermal heater 4
has a structure as shown in Fig. 3, with a white ginseng Cu electrode 8 on a polyester core thread 7, a nylon 12 thread polymer temperature-sensitive layer 9, an outer-wound Cu electrode/heating wire 10, an insulating jacket 11, and a polyethylene-based The hot melt adhesive layer 12 was sequentially formed. A voltage is applied from both ends of this flexible wire heat-sensitive heater wire to the outer wound electrode/heating wire, and the heater wire reaches 140'C.
It was heated with electricity until The polyethylene hot melt adhesive (melting point: 105° C.) melted and fused 3.5 mm of Meyer knitted blanket fabric together.

In this way, a beautiful Mayer electric blanket body with excellent drapability, heat retention, and texture was obtained.

Example 2 As shown in FIG. 2, a continuous pallet jig 14 was installed on a conveyor 13. A wiring pattern using pins l is formed in advance on this pallet jig.

A thermosensitive heater wire 4 wound around a drum was wired on top of this, and the upper Mayer knitted blanket material 5 was layered on top of it, and was continuously flowed onto a conveyor as shown in FIG.

The heat-sensitive heater wire was cut to a length corresponding to one blanket, and both ends of the heat-sensitive heater, which came in front of the pressure roller 15, were connected to a power source and heated with electricity. This thermal heater wire had the same specifications as in Example 1. In this way, a Meyer knit electric blanket made of long cloth was manufactured. This was cut into pieces, a border fabric was sewn on, and a connector was attached to the end of the heat-sensitive heater wire to form the main body of the Mayer knitted electric blanket.

Example 3 Polyurethane hot melt adhesive (melting point 110) on the back side
℃) is coated in stripes with a thickness of 30 pm, and the boa fiber blanket 3 is placed on the pallet 2 as shown in Fig. 1.
Bonding was carried out in the same process as in Example 1 to obtain a boa woven electric blanket. In this case, a flexible heat-sensitive heater wire without an adhesive layer 12 was used, but the insulating jacket 11 was made of a polyvinyl chloride composition containing a polyester plasticizer, and the hot melt adhesive was used to strengthen the wire. I was able to glue it.

As described above, the present invention can easily construct an electric blanket body made of a napped base fabric such as a Mayer knitted blanket or a boa blanket.The flexible electric wire used in the present invention includes:
There are temperature detection wires, heater wires, thermosensitive heater wires, PTC (having a large positive temperature coefficient of resistance) heater wire, etc. Among them, thermal heater wires and PTC heater wires have their own temperature sensing function, so there is no need to worry about overheating accidents even if they are fixed with hot melt adhesive rather than with thread. Even if a part comes off and the wire becomes free, safety is maintained. Therefore, thermal heater wires and PTC heater wires are particularly suitable for the present invention. Further, the energization heating conditions during bonding can also be controlled using a temperature signal from the thermal heater itself.

Effect of the invention The effects of the present invention can be summarized as follows.

1) It is an excellent method that allows efficient bonding in a short time without wasting materials or man-hours.

2) The equipment is simple.

3) Efficient production is possible through a continuous production process using the napped base fabric long fabric.

4) The thickness of the hot melt adhesive layer formed on the outermost shell of the flexible wire can be easily controlled. By forming an optimal amount of adhesive layer, the adhesive strength to the blanket fabric and the drapeability of the electric blanket body can be controlled, and an electric blanket made of a napped base fabric with a good texture can be constructed.

As described above, the present invention has great industrial value.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a method in Embodiment 1 of the present invention, FIG. 2 is a diagram illustrating an apparatus in Embodiment 2 of the present invention, and FIG. 3 is a diagram showing an example of a flexible electric wire used in the present invention. It is a diagram. 3.5...Napped base fabric, 4...Flexible electric wire. Name of agent: Patent attorney Shigetaka Awano 1 person, 1 figure, 2 figures 1 - Hin'2 - J solette 3.5 - Napped base fabric 4 - Flexible & electric wire g - One voice l1lr Kosaka? ! 3--Gonbei Figure 7- Thread 8-Inner street electric station Qo-Fubu Yuhiro I layer to --° dato, tit, zushi 5L and) Soku=
Heat Me 1 (If--One Disconnected Wire Outer Plate 12- Hola 1 Melt Ringing Sound ■ Layer Procedure Amendment (Spontaneous) 2 Name of Invention Electric Blanket Body and its Manufacturing Method Related to the Person Who Amends the Case Address Name Name of Representative 4 Agent Address Patent Application Person 1 (11) 6 Oaza Kadoma, Kadoma City, Osaka (582) Matsushita Electric Industrial Co., Ltd. Akio Tanii 1 (11) 6 Oaza Kadoma, Kadoma City, Osaka 571 Address: Matsushita Electric Industrial Co., Ltd. Column 6 of the detailed description of the invention in the specification, Contents of amendment (1) The scope of claims in the specification will be corrected as shown in the attached sheet. @) Page 6, line 16 of the same Insert the following statement between line 16. In particular, the hot melt adhesive used in the present invention is most effective when it has adhesive properties with the insulating jacket material (the second jacket material from the outside). As a result, the thickness of the adhesive layer between the flexible wire and the napped base fabric becomes thinner.However, if there is strong adhesion between the outer covering material of the flexible wire and the hot melt adhesive, the adhesive layer will be very thin. Therefore, it is better to choose a hot melt adhesive that has strong adhesion to the insulation jacket.In this case, the thin adhesive layer may impair the drapability of the fabric. It is possible to make an electric blanket body with an extremely good texture without having to worry about it.As for the specific materials, polymer elastomer is used for the insulating jacket, but it is especially flexible, flame retardant, and has a good price. Polyvinyl chloride-based compositions (including copolymer compositions) are often used. Ethylene-1-ethyl acrylate copolymer is a hot melt adhesive that has strong adhesion to polyvinyl chloride-based compositions. , ethylene-vinyl acetate copolymer, polyamide, adhesive (mainly OH group-containing) polyene ether, and polyurethane.'' (3) Insert the following sentence between lines 10 and 11 on page 10 of the same document. Masu. [Example 4] Outer diameter 2.5 mm using polyvinyl chloride composition as insulating jacket material.
A 3ff thermal heater wire was coated with adhesive polyester (Pylon (manufactured by Toyobo)) to have an outer diameter of 2.6ff. This was wired onto a non-adhesive wiring board whose surface was treated with fluororesin to form a wiring pattern. A Mayer knitted fabric was placed on top of this, and after processing, the thermosensitive heater wire was energized until the temperature reached 1 so°C. After cooling, the pressure was removed, and the Mayer knitted fabric on which the heat-sensitive heater wires were adhesively wired was removed from the wiring board. This wired Mayer knitted fabric was layered with another separate Meyer knitted fabric on the back side, and the edges were sewn using a sewing machine. In this way, an electric blanket body was obtained. 2. Claims (1) An electric blanket body formed by bonding the back side of a napped base fabric and a built-in flexible electric wire with a hot melt adhesive. The electric blanket body according to claim 1, wherein the back surfaces of at least one napped base fabric are bonded together with a hot melt adhesive on the outer shell of a flexible electric wire built into the napped base fabric. ! The electric blanket body according to claim 1 or 2), wherein the hot melt adhesive has a melting point of 90 to 160. ! The electric blanket main body according to claim 1 or 2, wherein the flexible electric wire is a thermal heater wire or a PTc heating wire. (7) Claim (1) wherein the raised base fabric is one type selected from Meyer knitted wool base fabric, boa knitted blanket base fabric, and boa woven blanket base fabric.
) or the electric blanket body described in (2). -) A flexible electric wire with a hot melt adhesive layer formed on the outermost shell is wired between the back sides of two napped base fabrics, and the flammable electric wire is heated with electricity under pressure, and the hot melt adhesive layer is heated under pressure. A method of manufacturing an electric blanket body by melting and bonding the back surfaces of two napped base fabrics. A flexible electric wire is wired between the back sides of two napped base fabrics with a hot melt adhesive layer formed on at least one back side, and the flexible electric wire is heated with electricity under pressure to form a hot melt adhesive. A method for producing an electric blanket main body, comprising melting a part of the layer and bonding the flexible electric wire to the back surface of at least one napped base fabric. Q13 Hot melt adhesive has a melting point of 90-160℃
A method for producing an electric blanket according to claim (8) or (2). Ethyl lylate copolymer, ethylene-vinyl acetate copolymer (2)
The method for producing an electric blanket main body according to claim II (8) or above, wherein the flexible electric wire is a thermal heater wire or a PTC heating wire. A claim in which the napped base fabric is one type selected from Mayer knitted wool base fabric, boa knitted blanket base fabric, and boa woven blanket base fabric (
8) or the method for manufacturing an electric blanket body described in (3).

Claims (12)

[Claims] (1) The back side of the napped base fabric and the built-in flexible electric wire are
The body of the electric blanket is bonded with hot melt adhesive. (2) The electric blanket main body according to claim 1, wherein the back surfaces of the two napped base fabrics are bonded together with a hot melt adhesive on the outer shell of a flexible electric wire built into the napped base fabric. (3) A flexible electric wire with a hot-melt adhesive layer formed on the outermost shell is wired between the back sides of two napped base fabrics, and the flexible electric wire is heated with electricity under pressure, and the hot-melt adhesive layer is heated under pressure. A method for manufacturing an electric blanket main body, which comprises melting an adhesive and bonding the back surfaces of the two napped base fabrics together. (4) A flexible electric wire is wired between the back sides of two napped base fabrics each having a hot melt adhesive layer formed on at least one back side, and the flexible electric wire is heated with electricity under pressure. A method for producing an electric blanket main body, comprising melting a part of a hot melt adhesive layer to adhere the flexible electric wire to the back surface of at least one napped base fabric. (5) The electric blanket body according to claim 1 or 2, wherein the hot melt adhesive has a melting point of 90 to 150°. (6) Claim (5) wherein the hot melt adhesive comprises a polymer whose main component is at least one selected from polyethylene, ethylene vinyl acetate copolymer, polyamide, polyester, and polyurethane, and a copolymer composition thereof. ) The electric blanket itself. (7) The electric blanket body according to claim (1) or (2), wherein the flexible electric wire is a thermal heater wire or a PTC heating wire. (8) A claim in which the napped base fabric is one type selected from Meyer knitted blanket base fabric, boa knitted blanket base fabric, and boa woven blanket base fabric (
The electric blanket body described in 1) or (2). (9) The method for producing an electric blanket main body according to claim (3) or (4), wherein the hot melt adhesive has a melting point of 90 to 150°. (10) A claim in which the hot melt adhesive comprises a polymer whose main component is at least one selected from polyethylene, ethylene vinyl acetate copolymer, polyamide, polyester, and polyurethane, and a copolymer composition thereof. 9
) The method for manufacturing the electric blanket body described in (11) The method for manufacturing an electric blanket main body according to claim (3) or (4), wherein the flexible electric wire is a heat-sensitive heater wire or a PTC heating wire. (12) The method for producing an electric blanket main body according to claim (3) or (4), wherein the napped base fabric is one selected from Meyer knitted blanket base fabric, boa knitted blanket base fabric, and boa woven blanket base fabric. .