JPH062240A - Moquette - Google Patents

Abstract

PURPOSE:To obtain a soft and flexible moquette, suitable as an upholstery fabric and excellent in abrasion resistance by bonding and fixing piles to a base woven fabric with fusible fiber used in the ground yarn without impairing the hand of whole moquette. CONSTITUTION:The objective moquette is obtained by constructing the ground yarn of a base fabric for engaging piles of the moquette from core-sheath yarn formed from a core part composed of thermally nonfusible fiber and a sheath part composed of the thermally nonfusible fiber and thermally fusible fiber. Thereby, the thermally fusible fiber for bonding and fixing the piles to the base woven fabric is mixed with the other thermally nonfusible fiber in the sheath part which is the surface of the ground yarn and thermally melted without hardening the ground yarn by the thermally molten thermally fusible fiber thereof. As a result, this soft, flexible and lightweight moquette, remarkably favorable as a vehicular upholstery fabric and excellent in abrasion resistance can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moquette mainly used for upholstered chairs such as automobiles, trains and aircrafts.

[0002]

2. Description of the Prior Art Moquette used for upholstered chairs is required to have strong abrasion resistance. In particular, in the woven moquette to be woven, unlike the knitting moquette in which the pile yarn forms a loop stitch with the ground yarn to form a part of the base knitted fabric, the pile yarn has a U-shape around the ground weft. Since it is only bent and detoured, the pile is easily pulled out during use and lacks wear resistance.

For this reason, a woven moquette is finished by applying a backing adhesive to the back surface of the woven moquette and fixing the pile to the base woven fabric by adhesion. However, since the backing adhesive is applied, the number of manufacturing steps is increased, resulting in a high cost. However, the finished moquette is heavier by the weight of the applied backing adhesive, which is not suitable for the recent weight reduction of automobiles and the like.

Therefore, the present inventor has invented a method in which the heat-fusible fiber is mixed with the ground yarn of the base woven fabric and heated after weaving to fuse it to the pile, which is disclosed in Japanese Patent Laid-Open No. 59-30937. Sun; August 13, 1982). Such a method of fixing the pile to the base fabric by mixing the heat-fusible fiber with the ground yarn is disclosed in JP-A-61-31131 (Japanese Patent Publication No. 3-31131, filing date; July 24, 1984).
Sun) and Jitsukai Sho 63-30371 (June 3-15)
No. 573, filing date; August 8, 1986).

[0005]

Thus, in the method of fixing the pile to the base fabric by mixing the heat-fusible fibers with the ground yarn, the other non-heat-meltable fibers in which the heat-fusible fibers constitute the ground yarn are used. Since the adhesive fibers are fusion-bonded to each other, the entire ground yarn becomes a hard rod shape, and the obtained moquette is also coarse and hard and lacks drape (flexibility).

Therefore, the moquette obtained by the conventional method is
As described in JP-A-61-31242, even if it can be used as a surface material for a plate-like member such as an automobile door trim or a rear side fisher, it is suitable for a stretched chair which requires flexibility. Would be unsuitable.

In this respect, in the method according to the above-mentioned JP-A-63-30371, the core-sheath yarn having the non-heat-fusible fiber as the core and the heat-fusible fiber as the sheath is used as the ground yarn. Yes, the non-heat-fusible fibers constituting the core part is prevented from becoming a hard rod-like whole ground yarn in a free state that can be slid without being fusion-bonded by the heat-fusible fibers, Even in that case, the core is melted and wrapped in the molten resin of the heat-fusible fiber that has become a plastic film, so the ground yarn becomes hard like a plastic-coated electric wire, and a flexible moquette suitable for chair stretch is I can't get it.

[0008]

SUMMARY OF THE INVENTION Therefore, according to the present invention, the fusible fiber used for the ground yarn adheres and fixes the pile to the base fabric without impairing the feeling of the entire moquette, and is flexible and suitable for chair upholstery. The purpose is to obtain a moquette having excellent wear properties.

[0009]

That is, the moquette according to the present invention is characterized in that the base yarn of the base fabric for locking the pile is composed of a non-heat-fusible fiber, and a non-heat-fusible fiber. It is characterized in that it is composed of a core-sheath yarn composed of a sheath composed of heat-fusible fibers.

The heat-fusible fiber has a melting point of 170.
A thermoplastic synthetic fiber having a melting point of 50 ° C. or lower, which is a thermoplastic synthetic fiber having a melting point of 50 ° C. or lower than other fibers constituting the ground yarn, and a non-thermofusible fiber having a melting point of 50 ° C. or higher. Means other fiber.

Therefore, as the heat-fusible fibers, in addition to known low-melting polyester fibers and low-melting polyamide fibers marketed under the trade names of Elder, Chisso-prepro OES, etc., non-heat-fusible fibers are cotton. If it is a synthetic fiber or a chemical fiber having a melting point of 200 ° C. or higher, such as natural fibers such as hemp and hemp, and ordinary polyester fibers, ordinary polyolefin fibers having a melting point of 120 ° C. to 160 ° C. are also used as the heat-fusible fiber. You can

On the other hand, as the non-heat-fusible fibers, natural fibers, polyester fibers and other synthetic fibers having a melting point of 200 ° C. or higher and chemical fibers are mainly used. The heat-fusible fibers have a melting point of 100 to 120. If it is low melting point polyester fiber or low melting point polyamide fiber of ℃, the melting point is 50 ℃
Higher ordinary polyolefin fibers can be used as the non-heat-fusible fiber.

In the present invention, the heat-fusible fiber is not used in the core portion of the ground yarn for adhesively fixing the pile to the base fabric.
The heat-fusible fiber is interposed in the sheath portion forming the surface of the ground yarn in contact with the pile, and is effectively used for adhesive fixing of the pile. The purpose is to prevent the ground yarn from becoming a hard rod by making the free fibers that can be freely slid without adhering to each other by the heat-fusible fibers. This is because the expansion and contraction of the ground yarn is reduced and the dimensional stability of the moquette is secured by aligning the ground yarn straightly along the axis.

At this point, the ratio of the core to the whole ground yarn is 5
If the amount is less than 10% by weight, it becomes difficult to secure the flexibility and dimensional stability of the moquette. On the other hand, if the ratio exceeds 30% by weight and the ratio of the sheath portion to the whole ground yarn is less than 70% by weight, the sheath The heat-sealing property of the part is deteriorated, resulting in insufficient adhesion between the pile and the base fabric.

Therefore, the ratio of the core portion to the ground yarn is 5 to 3
The content is 0% by weight, preferably 10 to 20% by weight, and it is desirable to apply a multi-filament yarn that is straight and continuous along the axis of the ground yarn to the non-heat-fusible fiber of the core.

The reason why the heat-fusible fiber and the non-heat-fusible fiber are mixed in the sheath part is that the heat-melted heat-fusible fiber is fused to the surface of the core part like a plastic-coated electric wire to form a film. This is because the molten resin of the heat-fusible fiber that is heated and melted is divided into the non-heat-fusible fibers and scattered on the surface of the core portion, whereby the ground yarn is hard. This is to prevent it from sticking.

In order to do so, the proportion of the non-heat-fusible fiber in the sheath is 40 to 85% by weight, and the remaining 15 to 60% by weight is occupied by the heat-fusible fiber. . Therefore, the proportion of the heat-fusible fiber in the whole core-sheath yarn (ground yarn) is 10.5% by weight (= 0.7 × 0.15) to 57% by weight (= 0.95 × 0.6). ), Preferably 12% by weight (= 0.8 × 0.15) to 54% by weight
(= 0.9 × 0.6).

As described above, in the present invention, the core yarn is used as the core-sheath yarn in order to bond and fix the pile to the base woven fabric, and the main reason for using the heat-fusible fiber only in the sheath portion is the flexibility of the moquette. Therefore, it is recommended to use polyamide-based one with a low Young's modulus as the heat-fusible fiber, and the material with the polyamide-based heat-fusible fiber as the non-heat-fusible fiber. It is recommended to use polyester fibers which do not bond too strongly due to the differences in

The core-sheath yarn can be used for both the ground warp yarn and the ground weft yarn constituting the base fabric of the moquette, but the core-sheath yarn yarn must be used for the ground weft yarn which the pile folds in a U shape and bypasses. use.

[0020]

EXAMPLE A polyester filament yarn of 40d / 3F is used as a core, a single-filament fineness is 2d, a low-melting polyamide fiber having a fiber length of 51 mm (melting point 110 ° C.), and a single-yarn fineness of 1.5d.
A polyester fiber having a fiber length of 51 mm (melting point of 250 ° C. or higher) is used as a sheath portion for a staple fiber, the core portion occupies 11% by weight of the core-sheath yarn, and the low-melting polyamide fiber of the sheath portion is 11 for the core-sheath yarn. The core-sheath yarn that occupies 69% by weight of the core-sheath yarn, which accounts for 69% by weight of the polyester fiber in the sheath portion, is used for the ground warp yarn and the weft yarn, and the polyester fiber spun yarn of metric count 20/2 is used as the pile yarn Weft density is 111 yarns / cm, pile lengthwise density is 95 yarns / cm, ground warp density is 2
A moquette having a density of 22 yarns / cm and a weft density of 190 yarns / cm was woven, and the back surface was heated to heat-melt the low-melting polyamide fiber, and the pile was adhered and fixed to the base fabric to finish.

[0021]

According to the present invention, the heat-fusible fiber for adhering and fixing the pile to the base fabric is not present in the core portion which is the axial core of the ground yarn, but other non-thermal heat is applied to the sheath portion which is the surface of the ground yarn. Since the fusible fibers are intermixed and interspersed, and when the fusible fibers are melted by heat and adhere the pile and the base fabric, they will be scattered on the surface of the ground yarn. The heat-fusible fiber does not harden.

Therefore, the moquette according to the present invention has the drape property required for upholstered chairs, and the backing finish with a backing adhesive is not required, so that the moquette can be efficiently obtained and has been conventionally coated with a backing. The backing adhesive is lighter by the applied amount, the backing adhesive does not block the cloth and it is highly breathable, it is flexible and has excellent abrasion resistance, making it a convenient chair stretch for automobiles, aircraft and other vehicles. Is.

Claims (4)

[Claims] 1. A base yarn for locking a pile is composed of a core portion made of non-heat-fusible fiber and a sheath portion made of non-heat-fusible fiber and heat-fusible fiber. A moquette, which is a core-sheath yarn having a melting point of the heat-fusible fiber of the sheath portion lower than that of the non-heat-fusible fiber of the core portion and the sheath portion by 50 ° C. or more. 2. The weight ratio of the sheath part to the core part of the core-sheath yarn according to claim 1 is 5 to 30 for the sheath parts 70 to 95.
The weight ratio of the non-heat-fusible fibers to the heat-fusible fibers in the sheath is 15 to 60 for the non-heat-fusible fibers 40 to 85. The moquette described in. 3. The weight ratio of the sheath portion to the core portion of the core-sheath yarn according to claim 2 is 10 to 2 for the sheath portion 80 to 90.
The moquette according to claim 2, which is 0. 4. The non-heat-fusible fiber according to claim 3 is a polyester fiber having a melting point of 250 ° C. or higher, and the heat-fusible fiber is a low-melting polyamide fiber having a melting point of 130 ° C. or lower. The moquette according to item 3.