JP2008095216A - Multi-colored textile product using dyeable polypropylene-based fiber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-colored textile product, especially a carpet having a nappy feeling, a bulky feeling and a soft feeling and designability with an upscale feeling. <P>SOLUTION: The multi-colored textile product is composed of a disperse dye-dyeable fiber satisfying the following (1) and (2) and a disperse dye-non-dyeable fiber: (1) The disperse dye-dyeable fiber is partially dyed in two or more different colors in the longitudinal direction of the yarn and the dyeing length of the same color is 1-50 cm on the surface of the multi-colored textile product and (2) the mixing ratio of the disperse dye-dyeable fiber is 3-50 mass%. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a polychromatic fiber product composed of disperse dye-dyeable fibers and disperse dye-dyeless fibers satisfying the following (1) and (2).
(1) The disperse dyeable fiber is partially dyed with two or more different colors in the length direction of the yarn, and on the surface of the polychromatic fiber product, the dyed length of the same color is 1-50 cm.
(2) The mixing ratio of the disperse dyeable fiber is 3 to 50% by mass.

So far, many carpets using different colored mixed crimped yarns have been proposed. For example, in Patent Document 1, two or more types of crimped yarns exhibiting different color are entangled into mixed yarns. A multi-colored carpet using is described. However, since it is an entangled mixed yarn of crimped yarns exhibiting a different color, the color change was slight and the color change could not be emphasized. Patent Document 2 describes a polychromatic carpet exhibiting a tone that can be chemically recycled. However, since polytetramethylene terephthalate fiber is used, the hair fall resistance and color development are inferior, and the color change is particularly poor.
JP 2001-226843 A JP 2002-88663

  The object of the present invention is to solve the problems in the prior art as described above, and is a fiber product made of polypropylene fibers that can be dyed in multiple colors by dyeing in post-processing and has excellent spinning stability. Is to provide.

This invention exists in the polychromatic fiber product which consists of disperse dye dyeable fiber and disperse dye non-dyeing fiber which satisfy | fills following (1) and (2).
(1) The disperse dyeable fiber is partially dyed with two or more different colors in the length direction of the yarn, and the dyeing length of the same color is 1 to 3 on the surface of the polychromatic fiber product. 50 cm.
(2) The mixing ratio of the disperse dyeable fiber is 3 to 50% by mass.
Furthermore, the present invention is characterized in that the polychromatic fiber product is a carpet.

  A fiber product comprising a disperse dye-dyeable polypropylene fiber dyed by the disperse dye of the present invention and a disperse dye non-dye fiber has a high nap and a bulky feeling, and has a suitable texture, and further has a mixed texture. By weaving, it becomes a high-quality polychromatic fiber product. As a patterning method using mixed weaving, dyeing of dyeable polypropylene fibers that are dyed with disperse dyes in the tufting process of disperse dye-non-dyed fibers (cheese dyeing, casserole dyeing, roller printing, space printing) Die etc.) Fibers with excellent design and high quality can be obtained by drawing a pattern by combining the fibers. Further, if post-dyeing (raw machine dyeing, screen printing, transfer printing, paper-type printing, etc.), a high-quality multicolored fiber product can be obtained. In the present invention, examples of the disperse dye-immiscible fibers include original polypropylene fibers and nylon fibers.

  The textile product capable of multicolor dyeing according to the present invention has a soft texture and is excellent in nap, bulkiness, design, and multicolor, so it is suitable for use in vehicle option mats, rugs and piece carpets. Is possible.

Hereinafter, the present invention will be described in detail.
The disperse dyeable dyeable polypropylene fibers used in the present invention are pre-dyed (cheese dye, casserole dye, roller printing, space dye, etc.) fibers on the surface of the polychromatic fiber product (hereinafter referred to as the same dyeing area). , The same staining length) is required to be 1 to 50 cm. More preferably, the same staining length is 2 to 15 cm. When the same dyeing length is less than 1 cm, even if space dye dyeing is performed, the dyed yarn does not exhibit the characteristics, and the fiber product has a poor feeling of contrast (contrast). Moreover, when it exceeds 50 cm, even if the pre-dyed fiber is multicolored, the color switching frequency is lowered, which is not preferable.

Further, the mixing ratio of the disperse dyeable polypropylene fiber is required to be 3 to 50% by mass. The mixing ratio of the disperse dye-dyeable polypropylene fiber is more preferably 5 to 25% by mass. If the mixing ratio of the disperse dye-dyeable polypropylene fiber is less than 3% by mass, the feeling of contrast (contrast) is poor and the design is poor. On the other hand, if the mixing ratio exceeds 50% by mass, the design is poor and the design is lowered.
Thus, in the present invention, if a pattern is drawn with a fiber that is not dyed by a disperse dye in a tufting process and a disperse dye-dyeable polypropylene fiber, a polychromatic fiber product that is excellent in design and high-quality can be obtained. A typical example of the polychromatic fiber product of the present invention is a carpet. The carpet may be a cut pile carpet, a cut pile carpet in which a part of the cut pile is mixed, or a cut and loop pile carpet in which a part of the loop pile is mixed.

  The disperse dye dyeable fiber used in the present invention is preferably a disperse dye dyeable polypropylene fiber. Dispersible dye-dyeable polypropylene fibers can be crimped to be crimped fibers, and the dyeable polypropylene-based crimped fibers obtained after crimping are twisted. May be. In addition, additives such as coloring pigments, dispersants, fluorescent brighteners, matting agents, lubricants, antistatic agents, deodorants, antibacterial agents, flame retardants, etc., are included within the range that does not impair the high elongation properties of the fiber. The types and amounts of these additives may be different.

  On the other hand, as the disperse dye non-dyeing fiber used in the present invention, a polypropylene fiber is preferable. In general, disperse dye-dyeless fibers include polypropylene fibers and nylon fibers, but polypropylene fibers are attracting attention as environmentally friendly resins from the standpoint of containing no harmful substances and being easy to recycle. In addition, polypropylene fibers are more preferable from the viewpoint of reducing environmental burden. Polypropylene fibers that are not dyed by disperse dyes can be crimped to be crimped fibers, and, after crimping, twist the obtained dyeable polypropylene-based crimped fibers. You may spend it. Additives such as color pigments, dispersants, fluorescent brighteners, matting agents, lubricants, antistatic agents, deodorants, antibacterial agents, flame retardants, etc. are included within the range that does not impair the high elongation properties of fibers. The types and amounts of these additives may be different.

  The disperse dye-dyeable polypropylene fiber constituting a part of the present invention preferably contains 5 to 15% by mass of a polybutylene terephthalate resin. The polybutylene terephthalate resin contained in the disperse dye dyeable polypropylene fiber is a disperse dye dyeable component. The mixing ratio of the polybutylene terephthalate resin is required to be 5 to 15% by mass, and preferably 5 to 10% by mass. If it is less than 5% by mass, desirable dyeability cannot be obtained, and if it exceeds 15% by mass, the spinning stability of the disperse dye-dyeable polypropylene fiber may be lowered.

  Further, the melting point of the polybutylene terephthalate resin contained in the disperse dyeable polypropylene fiber is preferably 30 ° C. or less, more preferably 15 ° C. or less, with respect to the melting point of the polypropylene resin. When the melting point difference exceeds 30 ° C., the polybutylene terephthalate resin does not melt sufficiently at the temperature at which the polypropylene fiber is melt-spun, and remains as a solid foreign substance in the melted polypropylene-based resin. There is a risk of lowering the spinning stability. Further, at the temperature at which the polybutylene terephthalate resin is melt-spun, the melt viscosity of the polypropylene-based resin is lowered, and the spinning stability may be lowered.

  In the present invention, the crimp ratio of the disperse dye-dyeable polypropylene fiber constituting a part of the polychromatic fiber product is preferably 5 to 20%, more preferably 10% or more. When it is 10% or more, it is possible to obtain a fiber product (carpet) having a higher nap feeling while being bulky. If the crimp rate is less than 5%, the bulkiness and the feeling of napping become inferior.

  Furthermore, the cross-sectional shape of the disperse dye-dyeable polypropylene fiber constituting a part of the pleochroic fiber product of the present invention is circular, triangular, flat, hollow, multi-core hollow cross-section, Y-shaped cross-section or cross-shaped cross-section. Any of multileaf type cross sections having 3 to 6 leaves (ribs) may be used. In particular, it is more preferable that the dyeable polypropylene fiber has a multi-leaf type cross section in which high bulkiness can be easily obtained, because a bulky carpet is obtained.

Next, an example of the manufacturing method of the polychromatic fiber product of this invention is demonstrated.
The disperse dye-dyeable polypropylene fiber constituting a part of the pleochroic fiber product of the present invention can be obtained by a known melt spinning method for polypropylene fibers. In melt spinning, disperse dye-dyeable polypropylene fibers are composite fibers such as a core-sheath structure or a laminated structure, as long as a thermoplastic resin composition such as polybutylene terephthalate is disposed at least on the fiber surface. There may be a composite spinning in the melt spinning.
Next, the resin melted by the melt extruder is extruded from a spinning nozzle, a spinning oil is applied to the surface of the spun yarn, and the yarn is wound to obtain an undrawn yarn. The unstretched yarn may be continuously stretched in a continuous process, or may be stretched after being wound once. Stretching may be performed in one or more stages, and the setting of the stretch ratio in the multistage stretching is not particularly limited.

  Furthermore, it is also possible to give a crimp by performing a hot air crimping process. At this time, without winding the melt-spun undrawn yarn, it is continuously drawn simultaneously with hot-air crimping, directly spun-drawn crimped with air entanglement, or once undrawn yarn is wound up and then drawn simultaneously. Hot air crimping, air entanglement, or the like can be used.

  In the stretching process, the heat source may be a contact type or a non-contact type. The draw ratio is preferably 2 to 7 times. If the draw ratio is less than 2 times, the fiber strength of the obtained filament yarn becomes low, and if it exceeds 7 times, the risk of occurrence of yarn breakage or the like increases. The stretching temperature is preferably in the range of 50 to 130 ° C. If the stretching temperature is less than 50 ° C., the draw ratio cannot be increased, and as a result, the fiber strength of the filament yarn obtained becomes low, while 130 If it exceeds ℃, thread breakage occurs.

Subsequently, in the method for producing a polychromatic fiber product, a crimped yarn of disperse dye-dyeable polypropylene fiber can be obtained in advance by a known dyeing method. For example, if the dyed yarn obtained by multi-color space dye dyeing and a crimped yarn that is not dyed by disperse dyeing are partially arranged and tufted, the design property can be improved. A highly pleochroic textile product is obtained. The arrangement method can be arbitrarily selected.
It is also possible to post-dye the pleochroic fiber product (raw dyeing, screen printing, transfer printing, paper type printing, etc.). Furthermore, if a fiber product mixed with fibers dyed with other dyes is dyed in multiple colors, a fiber product having a multicolor feeling can be obtained.

Next, the resulting multicolored textile product with high designability is a cut pile carpet, a cut pile carpet in which a cut pile portion is mixed in part, or a cut and loop pile carpet in which a loop pile portion is mixed in part. Also good.
After forming the carpet of the textile product, an adhesive is applied to the back surface, and the adhesive is dried and cured to fix the pile, thereby obtaining a carpet made of the dyeable polypropylene fiber of the present invention. At this time, a lining according to the application, for example, a sheet made of synthetic rubber or vinyl chloride resin or linen may be attached to the back surface of the base material via the adhesive. As the adhesive to be used, any adhesive can be used depending on the use and the material of the backing. For example, it can be appropriately selected according to the type of the base fabric such as acrylic latex or urethane adhesive.

In addition, about the evaluation method of a textile product, it carried out as follows.
(Crimp rate)
-Bundle the specimens to create a fissile sample thread.
-Heat the sample yarn at 80 ° C for 10 minutes.
-Leave for at least 10 minutes after heat treatment.
・ Apply the measurement load A to one end of the sample yarn and measure the yarn length (L1) after 1 minute.
Measurement load A = dtex × (1/10) × (2 × number of windings)
・ Leave the measurement load A for 2 minutes.
・ Apply the measurement load B to one end of the sample yarn and measure the yarn length (L2) after 1 minute.
Measurement load B = dtex × (1/10) × (2 × number of windings)
Crimp rate (%) = ((L1−L2) / L1) × 100 was used as the crimp rate.
Hereinafter, the present invention will be specifically described by way of examples.

(Example 1)
Disperse dye-dyeable polypropylene fibers constituting part of the present invention are obtained by polycondensation of a resin (dicarboxylic acid or its lower alkyl ester, acid halide or acid anhydride derivative with a dihydroxy compound) by a known melt spinning method. The obtained saturated polyester resin, 10% by mass mixture) is discharged using a spinneret (number of holes 60) having an extrusion temperature of 210 ° C., a spinning temperature of 215 ° C., and a Y-shaped hole shape, using a melt extruder. Spinning was performed at a spinning speed of 900 m / min.

  Subsequently, the undrawn multifilament yarn obtained without being wound once was subjected to simultaneous drawing hot air crimping at a draw ratio of 2.0 times, a drawing temperature of 110 ° C. and a hot air temperature of 180 ° C., and a relaxation rate of 17%. Winding and 1780 dtex / 60 filament (hereinafter referred to as f) disperse dyeable polypropylene crimped yarn A (hereinafter referred to as crimped yarn A) were obtained. The physical properties of the obtained crimped yarn A are shown in Table 1.

Furthermore, space dye dyeing | staining was implemented with respect to the crimped yarn A, and the dyed yarn A was obtained. The staining conditions were as follows. That is, the fiber running at a speed of 80 m / min was dyed by contacting with a roller to which each dye adhered, and fixed and refined.
The obtained dyed yarn A was dyed in each color every 25 cm.
Machine stand BELMONT TEXTILE (Roller printing machine)
Dye Disperse Dye Pretreatment Process 100 ° C Press Team x 1 Dyeing Process Speed = 80m / min Contact Time = 0.2sec Dye Pink, Blue, Green, Orange, Green, Violet in order Heat Fixing Process 100 ° C Press Team X 3 times refining process water washing drying process 130 ° C x 1.63m / min x 4

The other disperse dye-dyeless polypropylene fiber can also be obtained by a known melt spinning method.
A polypropylene homopolymer (manufactured by Nippon Polychem Co., Ltd., product name: SA03 (MFR = 31 g / 10 min, melting point = 164 ° C.)) blended with a green color pigment at a ratio of 0.54% by mass was used.
Using a melt extruder, the extrusion temperature was 210 ° C., the spinning temperature was 210 ° C., and the spinning was performed using a Y-shaped spinneret (number of holes: 60) and spinning at a spinning speed of 900 m / min.
Subsequently, the undrawn multifilament yarn obtained without being wound once was subjected to simultaneous drawing hot air crimping at a draw ratio of 2.0 times, a drawing temperature of 100 ° C. and a hot air temperature of 160 ° C., and a relaxation rate of 17%. Winding and 1780 dtex / 60f disperse dye-dyed polypropylene fiber crimped yarn B (hereinafter referred to as crimped yarn B) were obtained. Table 1 shows the physical properties of the obtained crimped yarn B.

Using a 1/8 gauge tufting machine with a ratio of 3 crimped yarns B to the obtained dyed yarn A, tufted with a pile driving density of 12 / inch and a pile height of 8 mm. did. Furthermore, after applying a latex adhesive on the back surface of the base fabric, it was dried with a dryer at 140 ° C. for 3 minutes to fix the cut pile, thereby obtaining the polychromatic fiber product (carpet) of the present invention. .
The obtained pile carpet has the same dyeing length on the surface of the pleochroic fiber product in which six colors are arranged at intervals of 5 cm, and the dyed yarn in which six colors are dyed in three colors of crimped yarn B There is A1 book, and there is rich change of color, and there is sense of quality. The mixing ratio at this time is 25% by mass for dyed yarn A and 75% by mass for crimped yarn B.

(Example 2)
Except that the crimped yarn A used in Example 1 was used and the dyeing process was changed to speed = 80 m / min and contact time = 0.5 seconds, space die dyeing was performed under the same conditions as in Example 1, and dyed yarn C Got. The obtained dyed yarn C is dyed in each color every 75 cm.
Using the 1/8 gauge tufting machine for the ratio of 3 crimped yarns B to the obtained dyed yarn C, tufting was performed at a pile driving density of 12 / inch and a pile height of 8 mm. It was. Furthermore, after applying a latex adhesive to the back surface of the base fabric, the pile was fixed by drying for 3 minutes at 140 ° C. with a dryer to obtain the polychromatic carpet of the present invention.
The obtained pleochroic carpet has one dyed yarn C dyed with six colors in the color of the crimped yarn B, rich in color change, and has a high-class feeling, and has a dyeing length longer than that of Example 1. It became a different color for a long time. The mixing ratio at this time is 25% by mass for dyed yarn A and 75% by mass for crimped yarn B.

(Example 3)
Except for the fact that 50 crimped yarns B used in Example 1 were arranged in succession and changed to an arrangement in which the crimped yarn B was repeated five times at a ratio of 2 to 1 dyed yarn A, and A pleochroic carpet was obtained with the same standard.
The resulting carpet, which is a polychromatic fiber product, has a green color portion of the crimped yarn B of 12 cm and a mixed portion of the dyed yarn A and the crimped yarn B arranged alternately in a direction perpendicular to the tufting downward direction. It was a luxurious carpet. The mixing ratio of the dyed yarn A was 7.7% by mass.

(Comparative Example 1)
A pink color different from that of Example 1 on the polypropylene homopolymer used in Example 1 (product name: SA03 (MFR = 31 g / 10 min, melting point = 164 ° C.)) used in Example 1 under the same conditions as in Example 1. A crimped yarn C (hereinafter referred to as crimped yarn C) of a disperse-dye-dyed polypropylene fiber in which the pigment was blended at a ratio of 0.30% by mass was obtained. The physical properties of the crimped yarn C are shown in Table 1.
Using a 1/8 gauge tufting machine with a ratio of 1 crimped yarn C to 3 crimped yarns B used in Example 1, pile driving density 12 / inch, pile height: 8 mm And tufted to make a pile. Furthermore, after applying a latex adhesive on the back surface of the base fabric, it was dried in a dryer at 140 ° C. for 3 minutes to fix the cut pile, thereby obtaining a carpet.
The obtained carpet is a carpet which has no color change in the length method because only a quarter of the crimped yarn C is mixed in the warp direction in the color of the crimped yarn B. It became a carpet with a poor feeling.

Claims (6)

A polychromatic fiber product comprising disperse dye-dyeable fibers and disperse dye-dyeless fibers satisfying the following (1) and (2).
(1) The disperse dyeable fiber is partially dyed in two or more different colors in the length direction of the yarn, and the same dyeing length is 1 to 4 on the surface of the polychromatic fiber product. 50 cm.
(2) The mixing ratio of the disperse dyeable fiber is 3 to 50% by mass.   The pleochroic fiber product according to claim 1, wherein the disperse dyeable fiber is a disperse dyeable polypropylene fiber.   The pleochroic fiber product according to claim 1, wherein the fiber not dyed by the disperse dye comprises a polypropylene fiber.   4. The polychromatic fiber product according to claim 2, wherein the disperse dyeable polypropylene fiber is a dyeable polypropylene fiber made of a polypropylene resin containing 5 to 15% by mass of a polybutylene terephthalate resin.   The polychromatic fiber using the dyeable polypropylene fiber according to claim 4, wherein the polybutylene terephthalate resin contained in the disperse dyeable polypropylene fiber has a melting point difference of 30 ° C. or less with respect to the polypropylene resin. Product.   The pleochroic fiber product according to any one of claims 1 to 5, wherein the pleochroic fiber product is a carpet.