JPS6227831B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filling for textile products which is particularly excellent as a filling for various textile products. More specifically, the present invention relates to a technique for producing batting uniformly bonded using specific adhesive fibers.

Conventionally, in cotton-filled gowns, mattresses, and various other cotton-filled textile products, especially quilted products, the filling bulges out from the surface of the fabric during use, making it extremely unsightly and a fatal problem that cannot withstand long-term use. It had a defect. In addition, it was not bulky and was prone to flatten like a rice cracker after long-term use. In particular, the elbows of quilted jumpers and the buttocks of mattresses tend to sag. This is thought to be due to the free behavior of the constituent short fibers.

As a conventional example of adhesive cotton, so-called resin cotton, which is cotton coated with acrylic resin, has been proposed, but this has poor washing resistance and the resin tends to fall off during use. There were flaws.

The purpose of the present invention is to heat-treat raw cotton through synthetic fiber cotton made of two materials with different melting points, so that the batting does not bulge out from the quilting surface and the batting does not sag. It is an object of the present invention to provide a batting particularly suitable as a batting for quilting products, which is extremely effective and suitable for use in quilting products, and does not cause any pollution during its manufacturing process.

Furthermore, it is an object of the present invention to provide an excellent batting that has good washing resistance and durability by uniformly adhering to the inner layer of the cotton, making it high quality, and using hot melt adhesive fibers. It is.

The structure of the present invention that achieves the above object is as follows. That is, in the filling material of textile products, thermoplastic core-sheath synthetic fiber raw material cotton formed by arranging a high molecular weight polymer having a lower melting point than the center part in the outer part, and other ordinary synthetic fiber raw material cotton or natural fiber material are used. This is a filling for various textile products, characterized in that it is a mixture of cotton and thermally bonded.

In the present invention, known synthetic fiber staples such as polyester, polyamide, and polyolefin can be used as the usual synthetic fiber raw material cotton, and known natural fibers such as cotton, wool, and hemp can be used as the natural cotton.

Further, this will be explained based on an embodiment example illustrated in the drawings. FIG. 1 is an enlarged cross-sectional view of heat-adhesive raw material cotton, FIGS. 2 and 3 are explanatory views, and FIG. 4 is an explanatory view. It is an explanatory view showing an example of a manufacturing process.

Synthetic fiber raw material cotton 3 formed using a material with a higher melting point than the outside material in the center part 1 and ordinary synthetic fiber raw material cotton or natural cotton 4 are mixed and then heat treated to form filling material 5.
It constitutes.

The synthetic fiber raw material cotton 3 formed using a material with a higher melting point in the center than the outside, for example,
It is preferable to use a conjugate type raw material cotton, which has a core of polypropylene fiber at 170°C and another olefin with a melting point of 140°C on the outside. Furthermore,
Composite fibers with normal polyester fibers (melting point 260°C) as the core component and copolymerized polyester with a melting point of 200°C or lower as the sheath component, as well.
Ordinary polyamide fiber (nylon-6 at 215℃,
Composite fibers with nylon 6, 6 (260℃) as the core component and copolyamide with a melting point of 200℃ or less as the sheath component can be used.

Next, to give an example of the manufacturing method, raw cotton 3 is formed using a material with a higher melting point than the outer side 2 in the center part 1, and natural cotton or synthetic fiber raw material 4 with a normal composition is blended, and the blended cotton 6 is heated with hot air. The hot air is passed through a heat treatment device 9 consisting of a blow-off port 7 and a duct 8 for sucking the hot air to undergo heat treatment. By doing so, the mixed cotton 6 can be heated efficiently, and there is no blowing out of hot air, making it possible to maintain a good working environment. Note that the cotton blend 6 contains 10% raw cotton 3.
It is preferable that the content be present in a range of 90% to 90% in order to maintain a good texture and keep raw material costs low.

The heat treatment temperature is determined by the melting point of the outer part of raw cotton 3.
If the temperature is 140℃, hot air of about 145℃ is appropriate. Moreover, when only the raw material cotton 3 of the heat-fusible fiber is used, the conveyance speed of the chain conveyor 11 is increased to perform a light heat treatment. When blending ordinary raw material cotton 4, the heat treatment time is slightly longer depending on the blending ratio.

In the present invention, the reason why hot air is blown from the upper part of the cotton and exhausted from below is to forcibly apply heat to the inside of the fiber cotton to achieve uniform thermal bonding. Therefore, the chain conveyor is preferably a perforated plate or mesh wire gauze.

As mentioned above, the batting 5 according to the present invention has the raw cotton 3 made of heat-sealable fibers having a high melting point in the center and a low melting point on the outside interposed therebetween, and melts only the outer part to fuse the raw cotton with each other. Since the adhesive is made up of 10 layers, the adhesive will not be unevenly distributed, and a bonded portion with a wide bonding area can be obtained. Therefore, when used as the filling for gowns, mattresses, and various other textile products, even if the quilted product is used for many years, there is very little of the filling coming out from the surface of the quilting, and there is almost no occurrence of cotton balls. At the same time, there is very little sagging. In addition, since it uses hot-melt type core-sheath composite fiber, no other adhesive is required, spraying work can be omitted, and sewing by needle locking is not required. Moreover, it dissolves the raw cotton itself. Therefore, it does not impair the texture of the raw cotton. In addition, since it can be processed by hot air treatment, it has remarkable effects such as no pollution caused by the use of organic solvents.

Furthermore, it has good thermal efficiency and can be used as a batting material with significantly lower manufacturing costs. It is also possible to manufacture various types of batting products, from hard batting to soft batting, depending on consumer preferences. Furthermore,
Since a conjugate type hot melt adhesive fiber is used, it has good washing resistance and extremely long durability in use.

This will be explained below using examples.

Example As an adhesive fiber, 20 parts by weight of the conjugate type fiber shown in FIG. 1 (core component is polypropylene with a melting point of 170°C, sheath component is polyethylene with a melting point of 140°C, fineness 15 denier) and 40 parts by weight of cotton fiber were used. Weight part, and polyester fiber (100 denier,
54mm) was mixed with 40 parts by weight while opening the fibers, and then thermally bonded using the apparatus shown in Fig. 4. The width of the web was 1 m, and the processing speed was 5 m/min. hot air is temperature
The temperature was 145℃ and the air volume was ^30m3 . The thickness of the obtained material was controlled by passing it through a roller to obtain a product with a basis weight of 1 kg (thickness: 30 mm). This product has a hardness suitable for use as a filling material for mattresses, does not bulge out, does not deform after washing, and does not change shape even after long-term use, making it truly excellent. Summer.

[Brief explanation of the drawing]

The drawings illustrate the present invention by way of example: Fig. 1 is an enlarged sectional view of heat-fusible raw material cotton, Figs. 2 and 3 are explanatory drawings, and Fig. 4 is an explanatory drawing showing an example of the manufacturing process. be. 1... Center, 2... Outside, 3... Synthetic fiber raw material cotton formed using a material with a higher melting point in the center than the outside, 4... Ordinary synthetic fiber raw material cotton or natural cotton, 5... Filling .

Claims (1)

[Scope of Claims] 1. In the filling material of textile products, thermoplastic core-sheath synthetic fiber raw material cotton formed by arranging a high molecular weight polymer having a lower melting point than the center part in the outer part and other ordinary synthetic fibers. 1. A filling for various textile products, characterized in that the fiber raw material cotton or natural cotton is blended, and the fibers are thermally bonded together by melting the high molecular weight polymer having a low melting point. 2. In a method for producing batting material for textile products, thermoplastic core-sheath synthetic fiber raw material cotton formed by arranging a high molecular weight polymer having a lower melting point than the center part in the outer part and other ordinary synthetic fiber raw materials A variety of products characterized in that cotton or natural cotton is blended and then passed through a heat treatment device having a hot air outlet and a hot air suction port to thermally bond the fibers together by melting the low melting point polymer. A method for manufacturing batting for textile products. 3. In an apparatus for producing thermally bonded batting for various textile products, a chain conveyor for transporting opened web cotton, a hot air outlet provided above the conveyor at a position where the web cotton does not come into contact with it, and An apparatus for manufacturing batting for various textile products, characterized in that an exhaust duct is provided below the conveyor.