JPH0366303A - Electric blanket - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electric blanket and a method for manufacturing the same.

Conventional technology Conventionally, in this type of electric blanket, two pieces of cloth are weaved, and at the same time, binding yarn is woven between the two pieces of cloth at a predetermined interval, and the two pieces of cloth are integrated before a heater is inserted. There is a method in which a loading groove is constructed between two sheets of cloth for raising the nap, and a heater is installed in the loading groove after the napping process.

In addition, there is a method in which a heater is temporarily placed between two pieces of cloth in a predetermined pattern, and then the entire surfaces of the two pieces of cloth are bonded together with a water-soluble adhesive or a hot melt adhesive.

Problems to be Solved by the Invention However, such a structure, for example, 21
Due to the structure of the loom, the i-fiber blanket method is limited to plain weave and twill weave fiber blankets.

In the method of gluing two blankets together on their entire surface, the two blankets are stretched against each other after gluing, making them stiff and lacking in drapability.Furthermore, since the heater is also fixed to the fabric, the external force applied to the fabric is transmitted to the heater. There are problems such as the heater being easily disconnected.

Therefore, the first object of the present invention is to create an electric blanket without impairing its drapability and appearance by adhering it using boa fabric, Mayer Akebono blanket, etc., which has cilia that are gentle on the skin and have an excellent appearance.
The purpose is to

Furthermore, the second purpose is that when pasting Meyer blankets (that is, warp-knitted blankets that easily stretch in the horizontal direction), when an external force is applied to expand the Meyer blanket, it will stretch and deform easily. This method realizes a method in which wrinkles do not occur during the bonding process even when a knitted blanket is used.

In order to solve the problems and to distantly achieve the above first object, the present invention provides 30
Two knitted blankets are bonded at a predetermined interval using a moisture-reactive hot-melt adhesive having an oven time of about 2 seconds to 2 minutes, and at the same time a connecting groove for loading a heater is formed.

In order to achieve the second objective, the upper knitted blanket was supported using tightly pulled cheesecloth when bonding the two blankets together. If you glue the stretched blanket as it is,
After gluing, the Meyer blanket shrinks, but the adhesive-applied area does not shrink and becomes wavy and meandering, spoiling its appearance.

Function: The adhesive method using the moisture-reactive hot-melt adhesive of the present invention has the above-mentioned structure, so that the surface of the moisture-reactive hot-melt adhesive is applied while lightly reacting with the moisture in the air, so that it may be applied to the lower Meyer blanket to some extent. It bleeds through, but you can apply it easily without it seeping out on the other side.

Furthermore, when cheesecloth and the upper Meyer blanket are placed on top of the lower Meyer blanket and pressure is applied, the thin cured film on the surface of the adhesive breaks and the uncured portion inside seeps into the cheesecloth and Meyer blanket, causing physical damage. The shape allows the fibers to be entangled in the adhesive.

Next, on top of the lower Meyer blanket that has been spread out on a flat plate without any tension, the upper Meyer blanket is spread without tension on the cheesecloth that has been pulled from the left and right sides, and is overlapped, pressed, and adhered.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

In Figures 1 and 2, 1 is the upper Meyer blanket, 2 is the lower Meyer blanket, 3 is the cheesecloth, 4 is the heater, and 5 is the moisture-reactive hot melt adhesive applied in a linear manner. Apply it parallel to both sides of the heater placed with
Glue the bottom sides of both Meyer blankets and cheesecloth.

FIG. 3 is a diagram showing that during adhesion, the right and left sides of the cheesecloth are pulled by the holding fittings 10, the upper Meyer blanket is spread out without tension, and the upper Meyer blanket is placed on the lower Meyer blanket coated with a moisture-responsive adhesive.

For cheesecloth, use 30-IO thread with a thread count of 15-25 threads/inch for best results as the adhesive will pass between the weaves and bond to the upper Meyer blanket. Obtained.

As a moisture-reactive true melt adhesive, BO3T-I
Using 5UPERGRIP 2000 (trade name) manufactured by Company K, the coating was applied linearly from a nozzle at 110°C at a coating weight of 1-2 g/m.

After applying the adhesive, the upper Meyer blanket supported by cheesecloth was put together within 20-30 seconds and adhered by applying light pressure at room temperature.In addition to the effects of the invention, the electric blanket of the present invention exhibits the following effects. do.

(1) When two easily stretchy Meyer blankets are layered and glued together, cheesecloth is used to support them, so there is no waving or meandering of the Meyer blankets.

(2) In addition to Mayer knitted wool, the outer fabric can also be applied to easily stretchable fabrics such as pore wool, chassis fabric, French pile, etc., so the range of fabrics that can be used for electric blankets can be expanded.

(3) Since a moisture-reactive hot-melt adhesive is used as the adhesive, there is no bleeding onto the fabric surface, and pressure bonding can be done at room temperature, so the cilia on the fabric surface will not fall down and impair the texture.

(4) After curing, the adhesive becomes a flexible polymer resin, so the adhesive will not come off even if rubbed.

(5) Since the two Meyer blankets and cheesecloth are glued together at intervals, the fabrics may shift from each other when folded.
It can exhibit good drape properties.

(6) Since the adhesive part is hardened by the adhesive resin during use, it will not stretch even if an external force is applied, so no external force is applied to the heater, and there is no risk of heater breakage or wires. Also, since it does not shrink, there is no excess heater left over and it does not twist.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway top view of an electric blanket showing an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of the same, and FIG. 3 is a diagram showing the upper Meyer blanket supported by cheesecloth. 1... Upper Meyer blanket, 2... Lower Meyer blanket, 3... Cheesecloth, 4...
String heater, 5... Moisture-reactive hot melt adhesive, 10... Holder.

Claims (2)

[Claims] (1) Two knitted blankets, top and bottom, and cheesecloth sandwiched between them.
This electric blanket is made up of a blanket fabric made by adhering these pieces in a linear manner at predetermined intervals with a moisture-reactive hot melt adhesive, and a string-like heater attached between the bonded parts of the knitted blanket and cheesecloth. (2) After arranging the heaters in a predetermined pattern on the lower knitted blanket, apply moisture-reactive hot melt adhesive along the heaters, and stack the upper knitted blanket while supporting it with cheesecloth.
The manufacturing process of electric blankets involves applying pressure and adhesion.