JP2000328393A - Pile fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a pile fabric whose problems regarding feeling, yielding resistance in pile, weight-lightening, the fall of the pile yarn, color phase difference in white blur, polisher property, pilling of pile and the like are solved by adding a fiber consisting of a propylene terephthalate-based polyester to pile yarn. SOLUTION: This pile fabric is made of pile yarn having pile lengths preferably of 60 mm or less and containing fiber (preferably, flat fibers having a cross-sectional flatness ratio of 2-10) consisting of a propylene terephthalate- based polyester. The fiber consisting of a polypropylene terephthalate-based polyester preferably contains at least one kind of a delustering agent selected from a group consisting of titanium dioxide, barium sulfate and zinc sulfide in an amount of 0.1-10 wt.% based on the weight of fiber. The pile fabric is useful as chair cloths, interior cloths for furniture, vehicles or the like, carpets, blankets, man-made leathers or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to chair coverings, furniture,
The present invention relates to various pile fabrics such as pile fabrics for car interiors, carpets, blankets, and artificial fur.

[0002]

2. Description of the Related Art Conventionally, pile fabrics using polyester fibers have been widely used because of their characteristics such as excellent dyeing fastness and recyclability. However, since the properties of the polyester itself are rigid, there are problems that the texture is hard, the pile has a large set, the basis weight cannot be reduced, and it is difficult to reduce the weight. Therefore, many proposals have been made to soften the texture and reduce the settling.

[0003] For example, JP-A-61-152849, JP-A-1-156544, and JP-A-2-160.
908, JP-A-2-197438, JP-A-2-221411, JP-A-3-51349, JP-A-3-64550, etc. By using different flat cross-section fibers, smooth feel, and by applying a flat cross section to external force, it flexibly deforms and gives drape properties, imparts softness close to nylon, and flattens There has been proposed a method of reducing the set by reducing the stress deformation as much as possible. Certainly, the effect of improvement was recognized as compared with the polyester fiber before that, but it was insufficient.

Japanese Patent Application Laid-Open Nos. 3-51343 and 3-51343 disclose, in part, a cationic dyeable polyester in order to improve pile durability and reduce pile hue change due to pile settling. It has been proposed to use a laminated composite yarn which has been used or to use a composite fiber in which the amount of titanium oxide added to the core-sheath portion is changed, but it has not been sufficient.

[0005] As shown in Japanese Patent Publication No. 57-25645 and Japanese Patent Application Laid-Open No. 56-107044, in the case of pile fabrics having relatively long hair feet, such as carpets, blankets and artificial fur, conventional polyester fibers are not used. In the pile fabric manufacturing process, the surface of the pile fabric is brought into contact with a high-speed rotating heat roller to stretch the crimp at the tip of the pile, to soften the feel of the pile, and to prevent the pile from fluffing while using the pile fabric. Polisher processing is aimed at, but with conventional polyester fibers, the crimp is difficult to stretch,
The softening of the texture is insufficient, and the pile becomes a hard pill during use, significantly, the texture becomes coarse and hard,
There is a problem that the quality deteriorates, and it has been proposed to improve the cross-sectional shape of the fiber used for the pile fabric having a long hair foot by changing the cross-sectional shape to various flat cross-sectional fibers, but some effects can be expected. Was not enough.

That is, the above prior art relates not only to a pile fabric manufactured by supplying a spun yarn or a filament yarn to a knitting machine or a loom, but also to a pile fabric called a sliver knit manufactured by directly knitting a sliver into a knitting machine. Things. Also included are pile fabrics obtained by needle-punching a nonwoven fabric and raising piles, mall yarns in which a pile (also referred to as flock) is adhered to the yarn surface by electric flocking, and electroplanted pile fabrics which are adhered to the fabric surface.

[0007]

As described above, even in the various prior arts, the texture is hard, the pile set is large, it is difficult to reduce the weight, the white blur color difference due to hair fall occurs, the polisher property is poor, Problems specific to pile fabrics using polyester fibers, such as pilling of the pile during use and deterioration of texture, have not been sufficiently solved.

[0008] The present invention solves problems related to the texture, pile resistance, weight reduction, hair falling, white blur color hue difference, polisher property, pile pilling after use over time, change in texture, etc. for pile fabrics made of polyester fibers. It is intended to do so.

[0009]

That is, the object of the present invention can be attained by a pile fabric characterized in that the pile yarn contains fibers made of polypropylene terephthalate polyester.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The pile yarn of the present invention is made of a polypropylene terephthalate (polytrimethylene terephthalate) polyester, which improves the texture, reduces pile set, reduces weight, reduces hair breakage, and causes white blur. It is necessary to reduce the hue difference, improve the polisher property, prevent pilling of the pile during use, and reduce the change in texture.

The polypropylene terephthalate-based polyester mentioned here can be obtained by various methods such as polymerization of 1,3-propylene glycol (trimethylene glycol) and terephthalic acid ester in the same manner as polyethylene terephthalate. It refers to copolymerized polypropylene terephthalate.

Here, as the copolymerization component in the copolymerized polypropylene terephthalate, various components such as metal sulfoisophthalic acid and esters thereof can be used, and they may be appropriately combined in consideration of spinnability and the like. The copolymerization ratio of the copolymer component is preferably 30 mol% or less, and when it is within the above range, the above-mentioned effects are remarkably exhibited.

In the present invention, it is also possible to use a mixture of fibers made of polypropylene terephthalate polyester and other fibers made of other ordinary polyethylene terephthalate or a copolymer thereof. When the mixing ratio of the polypropylene terephthalate-based polyester fiber is 10% by weight or more,
Outstanding effects on texture, pile settling, weight reduction, hair fall properties, resulting white hue color difference, etc., polisher properties, difficulty in forming pile pills during use, change in texture (deterioration), etc. Is played. In particular, when the content is 50% by weight or more, a remarkable effect is further exhibited.

It is possible to add at least one matting agent selected from the group consisting of titanium dioxide, barium sulfate, and zinc sulfide to the fibers of the polypropylene terephthalate-based polyester constituting the pile fabric. Is preferable for preventing see-through, and for softening the pile. Further, in the case of barium sulfate and zinc sulfide, the concealing properties and the softening of the texture are slightly inferior to those of titanium dioxide. Unlike titanium, it is not lightly dyed and has a feature that the wear of cutting tools when cutting the pile tip is remarkably reduced.Therefore, in order to reduce dyeing cost and improve pile cut workability, Matting agent may be used.

The matting agent is used in an amount of 0.1% based on the fiber weight.
By containing 1 to 10%, it is possible to obtain a softer color tone and softer texture, less settling, lighter weight, improved polisher properties, better pile pilling during use, and a better pile fabric with reduced texture change. can do.

The polypropylene terephthalate-based polyester fiber of the present invention may be produced by a known polyester fiber production method.
Various cross-sectional shapes such as a trilobal to polygonal multi-lobal cross section, a hollow cross section, and a modified hollow cross section can be used. In particular, those having a flat cross-sectional shape are preferable from the viewpoints of softer touch, pile tip cutability, hair fall prevention, white blur hue difference countermeasure, pilling prevention and the like.

Here, when a flat cross section fiber is used,
When the width of the flat cross section is W and the length is L, the flat ratio (L /
Those having W) of 2 to 10 are preferred. When L / W is within the above range, effects such as softer touch, pile tip cutting property, hair fall prevention property, white blur color hue difference countermeasure, pilling prevention and the like are exhibited, and are sufficiently practical. Become.

FIG. 1 illustrates a cross-sectional shape of the flat cross-section fiber of the present invention. FIG. 1A shows a simple flat shape or an elliptical shape, which is softer and has improved hair fallability as compared with a circular cross section, but has a brilliant gloss. The feel is also high with wet friction.

1 (b) to 1 (f) each have one or more constricted portions in the cross-sectional shape, and these flat cross-sectional shapes have a flat shape as shown in FIG. 1 (a). A pile fabric using such a fiber is more preferable because it has a calm luster because diffused reflection light increases as compared with a cross-sectional shape.

1 (c) to 1 (e) are preferable in that the central portion is thicker than both ends of the cross section and that the hair tips are less fibrillated.

FIG. 1F shows a hollow flat cross section. When the cross section is changed from a circular cross section to a flat cross section, the bulkiness tends to decrease, but the hollowness improves the bulkiness. In applications where the pile is lightened, in particular, used as a cold protector such as artificial fur, it is also effective for improving the heat retention.

FIG. 1 (g) shows a waveform having a flat cross section. As shown in FIG. 1 (a), such a cross-sectional shape is soft as a flat cross-sectional effect and is excellent in terms of hair handling properties, but it has a brilliant shape and has a flat cross-section having a constricted portion as described above. Not always preferred compared to.

The pile length of the pile yarn of the present invention is preferably 60 mm or less, and the pile length of the pile fabric for interior decoration of upholstery, furniture, vehicles and the like is preferably 10 mm or less. When the thickness is 10 mm or less, the displacement of the pile at the time of wearing is extremely suppressed, so that the feeling of wearing stability is large, and particularly, it can be suitably used as a skin material of a vehicle seat having a lateral sway.

The pile length of the pile fabric used for applications such as carpets, blankets and artificial fur is preferably 60 mm or less. When it is 60 mm or less, between fibers-fiber, fibers-
Fiber friction between yarn paths can be extremely suppressed, and productivity of pile fabric production in a spinning step, a sliver knitting step, and the like is remarkably improved.

When the nonwoven fabric is formed into a pile fabric by needle punching, if the pile length is 60 mm or less, the card passing property is further improved.

The number of crimps of the polypropylene terephthalate fiber used for these pile fabrics for interiors, carpets, blankets, artificial fur, needle punched non-woven fabrics and the like is 5 to 2.
Five peaks / 25 mm are desirable from the viewpoint of spinnability, sliver knit workability, and nonwoven fabric workability, and are preferable in terms of softness, resilience, elastic recovery, and the like of a pile fabric product having a fineness of 0.3 to 20 denier. .

When the pile fabric of the present invention is obtained by an electric flocking method, it is preferable that the pile length is 3 mm or less, because more uniform and stable flocking processing characteristics can be exhibited. When electric flocking on the surface of yarn, cloth or non-woven fabric,
It is preferable from the point of recycling that the yarn, cloth and nonwoven fabric used as the base material are polyester fibers. The pile used for electric flocking is desirably a straight non-crimped pile, and the fineness is 0.1 to 20 denier. Are preferred.

It should be noted that within a range not to impair the object of the present invention,
Optional additives such as a fluorescent whitening agent, a matting agent, a flame retardant, a deodorant, an antibacterial agent, a far-infrared radiating substance, and an ultraviolet absorber can be used in combination.

[0029]

EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited by these examples. In addition, each evaluation item in an Example was measured according to the following method. 1) Compression energy (WC): Using a low-speed type tension (compression) tester, a pile yarn of a fabric was cut at a constant speed of 2 mm / min by 0.5.
It was compressed to Kg, and the work corresponding to the compression was calculated. 2) Durability of pile yarn: Judgment was made according to the method described in JIS L-1022, based on the change in appearance after a 30-minute test under a load of 3 kg. No change in 5th grade. Grade 1 was set to Hetari size and evaluated on a five-point scale. 3) Judgment of texture and white blur: Judgment was made based on the feel and appearance of the pile yarn surface. 4) Comprehensive evaluation: Comprehensive evaluation was performed according to the following criteria. ◎: Pile fabric which is extremely excellent in practical use. : Pile fabric that is practically good. Δ: Pile fabric which is slightly better in practice. ×: Pile fabric at a level that cannot be practically used.

[Examples 1 and 2, Comparative Examples 1 to 3] Single denier fineness 2.5 denier, fiber length 51 mm, titanium dioxide content 0%, circular cross section (Example 1), 1-b Using the polypropylene terephthalate fiber shown in the figure (Example 2) as a 26/2 cotton count spun yarn, using the spun yarn as a warp and a weft, pile pile density 22 / inch, fabric density 22 / inch, pile Weft density 21 / inch,
A moquette having a fabric weft density of 42 lines / inch was constructed. In this moquette, pile yarns reciprocate between fabrics woven with ground yarns in the warp and weft directions, respectively, to form a double structure, and the double structure is separated into two pieces by a blade. Next, after hair treatment, the pile surface was shirred and the pile length was 2.5 m.
m of the interior pile fabric was obtained. Table 1 shows the evaluation results.
For comparison, the same test was carried out for a fiber having a different cross-sectional shape as shown in the same table, a fiber having a different cross-sectional shape with polyethylene terephthalate, and a material having nylon 6 as a material. (Comparative Examples 1 to 3)

[0031]

[Table 1]

Examples 3 to 8 Table 2 shows the results obtained by changing the mixing ratio of the fibers of Example 1 and Comparative Example 1, and the results obtained by changing the mixing ratio of the fibers of Example 2 and Comparative Example 1.

[0033]

[Table 2]

[Examples 9 to 10] Polypropylene terephthalate fiber having a denier of 6 denier, a fiber length of 51 mm, a titanium dioxide content of 0%, and a circular cross section (Example 9), FIG. 1 (b) (Example 10) After dyeing by a conventional method, carding was performed to prepare a card sliver having a basis weight of 15 g / m. Using these as piles, a spun yarn (count 201S / 1) made of normal polyester is used as ground yarn, knitted with a high pile knitting machine (10 gauge, diameter 20 inches), and sheared after backing.
Next, polisher processing was performed. Polisher processing is
At a surface temperature of 175 to 180 ° C., the fabric was passed twice alternately in the same direction and in the opposite direction to the fabric advancing direction, and was subjected to finishing shearing again to obtain a high pile fabric. This high pile fabric has a width of 1.5 m, a pile length of 20 mm, and a pile weight of 1.
It is 1 kg / full width × 1 m long, the crimp at the tip of the pile is sufficiently removed, the hair handling property is good, there is no pill formation due to wearing over time, and the feeling is not hard, and it is good. Was. In particular, the product of Example 10 had a gentle luster of animal hair and a smooth feel, and was excellent in appearance and feeling in animal hair.

Comparative Examples 4 and 5 The same treatment as in Example 9 was carried out except that the polyethylene terephthalate fiber of Comparative Example 1 or 2 was used, and the fineness was changed from 2.5 denier to 6 denier. The obtained high pile fabric was not good in appearance and feeling and was a product without commercial value.

[Examples 11 to 14] In Example 10, the content of titanium dioxide was 0.2% (Example 11).
0.4% (Example 12), 5% (Example 13), 12%
The same processing was performed except that the example was changed to (Example 14). As the content of titanium dioxide increases, the polisher property becomes better, the feel becomes softer, the hair handling becomes better, the pile setting becomes less, the luxury feeling increases, and even during long-term use, pile pilling and wind There was little change in the combination and the like, which was favorable. Those having a titanium dioxide content of 12% were pale in color at the time of dyeing and required a larger amount of dyes than the others.

Example 15 The same treatment as in Example 13 was carried out except that the content of zinc sulfide was changed to 5% (Example 15). Comparing Example 13 with the sharpness of the blade at the time of shearing, it was confirmed that in the case of zinc sulfide, the life of the blade was extended about four times, and workability was greatly improved.

[Embodiments 16 and 17] In the tenth embodiment, the cross-sectional flattening rates were 5 (embodiment 15) and 8 (embodiment 1).
6) and 12 (Example 7) were processed in the same manner except that the modified one was used. The obtained high pile fabric was good in both appearance and feeling. However, the section flattening rate is 12
In the case of (Example 7), the pile was liable to be worn out, although there was no practical problem with the wearing time.

[0039]

The pile fabric of the present invention not only has good dyeing fastness and is recyclable, but also eliminates various drawbacks of the conventional polyester fiber, and has not been obtained conventionally.
A pile fabric with excellent properties is obtained. Furthermore, the pile fabric for interiors, the carpet, the blanket, the artificial fur, the non-woven needle punched product, the pile fabric by the electric flocking method, etc. of the present invention have a softer texture and pile resistance than the pile fabric made of the conventional polyester fiber. It has excellent properties such as improved settability, lighter weight, hair fall prevention, reduced white hue color difference, improved polisher properties, prevention of pile pilling after use over time, and reduction of change in texture over time.

[Brief description of the drawings]

FIG. 1 is a view schematically showing one aspect of a flat cross-sectional shape that can be taken by a polypropylene terephthalate-based polyester fiber contained in a pile yarn of the present invention.

[Explanation of symbols]

 L: Indicates the length of the flat section fiber. W: Indicates the width of the flat cross section fiber.

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Claims (7)

[Claims] 1. A pile fabric, wherein the pile yarn contains fibers made of polypropylene terephthalate polyester. 2. A fiber comprising a polypropylene terephthalate-based polyester, comprising titanium dioxide, barium sulfate,
The pile fabric according to claim 1, comprising at least one matting agent selected from the group consisting of zinc sulfide in an amount of 0.1 to 10% by weight based on the weight of the fiber. 3. The pile fabric according to claim 1, wherein the fibers made of polypropylene terephthalate polyester are flat fibers. 4. The pile fabric according to claim 3, wherein the flat fibers have a cross-sectional flatness of 2 to 10. 5. The pile fabric according to claim 1, wherein the polypropylene terephthalate-based polyester is homopolypropylene terephthalate. 6. The polypropylene terephthalate-based polyester is a copolymerized polypropylene terephthalate,
The pile fabric according to claim 1. 7. The pile fabric according to claim 1, wherein the pile length is 60 mm or less.