JPH10137103A - Manufacture of carpet excellent in design - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carpet which is prominent in pattern design of color and unevenness by forming an original fabric of a raised pile carpet by using thread or silver made by mixing fiber having low shrink properties and fiber having high shrink properties and heat-treating to form unconventional two- layered piles, and then cropping a part of the fiber in a raised pile section. SOLUTION: Thread are spun by mixing with fiber having high shrink properties (down hair 6) and fiber having low shrink properties (guard hair 4), which are different in color and transparency. The thread are woven to form an original fabric of a raised pile carpet by using a loom or a tufting machine. The original fabric of the so-called two-layered raised pile carpet is obtained through wet heat or dry heat treatment. Then, a raised pile part (pile) is opened by brushing, and crimps are stretched by means such as a polisher to contrast color and transparency of the down hair 6 with those of the guard hair 4, and then a part of the guard hair 4 and a part of the down hair 6 is cropped to form patterns.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a carpet, and more particularly to a method for producing a carpet having an excellent design, which can provide a carpet having a distinctive pattern due to unevenness having a color difference. Things.

[0002]

2. Description of the Related Art As a means used to impart a pattern having a different color to a cloth-like fiber product or a nap-like fiber product, there are two types of yarns, one using a variety of yarns and the other using a single type of yarns. There are things. 2. Description of the Related Art Conventionally, as a method of giving patterns having different colors by using various kinds of yarns, there are broadly classified methods using a weaving machine such as a jacquard or a dobby, a similar Wilton loom, and an akisminster. On the other hand, as a method of giving patterns of different colors using one kind of yarn, printing is a typical method.

[0003] In general, when a pattern of different colors is applied by using various kinds of yarns by a weaving machine such as the jacquard or dobby, or a similar Wilton loom or Akisminster, a complicated pattern is applied. On the other hand, it is necessary to prepare various kinds of color yarns corresponding to the number of colors of the pattern, and it is necessary to spin or dye different amount of yarns according to the area of the pattern. There is a drawback that management is very complicated. on the other hand,
When printing patterns with different colors by printing, the number of colors,
It is necessary to prepare a roller or gauze according to the pattern, and after printing the dye, an expensive apparatus that consumes a large amount of energy such as steaming, washing, dehydrating, and drying is required. The current situation is that utility costs greatly squeeze product costs. Furthermore, the means for obtaining a pattern such as the jacquard described above is based on the fact that the color and pattern are determined at the time of knitting and weaving, and there is a risk that it is impossible to change the color and pattern before finishing processing, and there is a risk that many kinds of yarn It involves the complexity of requiring lot management. In the printing method, the risk is small in that a single yarn is used, but the investment amount for gauze and rollers is high, and the processing lot is large due to the decrease in the operating rate for color and pattern switching. There's a problem. In addition, in the case of napped products such as carpets, when trying to impart an uneven pattern by a printing method, a solvent is used to dissolve and shorten the pile to some extent, so although improvement is progressing, The difficulty that the texture becomes hard is still left.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in providing a pattern having a different color to a textile product, in particular, a napping textile product such as a carpet. Using one thread, after adjusting the texture in the finishing process, giving the desired pattern in the final process, and at the same time, the ground portion (the uncut portion of the convex portion) in the pattern portion (the cut portion of the cut portion). It is an object of the present invention to provide a method for producing a carpet having excellent design properties, which makes it possible to make the design properties of the pattern stand out in both the color and the unevenness by making a different color appear.

[0005]

Means for Solving the Problems The present inventors have conducted intensive studies in order to achieve the above-mentioned object, and as a result, after fabricating and weaving a raw material of a nap-like carpet product, brushing, polishing, etc. When finished to the nap product, the color of each fiber constituting the pile part of the raw fabric, which is marbled, but looks plain, becomes clearer and darker, and Paying attention to the fact that the appearance of the color differs due to the difference in the transparency between the fibers when different colored fibers are mixed, as a result of various studies on the hue, gloss, finishing conditions, etc. of the fibers constituting the pile of the raised carpet, The present invention has been completed.

That is, the method for producing a carpet according to the present invention comprises a low-shrinkage fiber and a high-shrinkage fiber having different colors from each other, wherein the low-shrinkage fiber has low transparency.
The high-shrinkage fiber is a fiber having a higher transparency than the low-shrinkage fiber, and forms a raw material of a napped carpet using a yarn or a sliver mixed with the low-shrinkage fiber and the high-shrinkage fiber, After the heat treatment is performed to shrink the fibers of the raised portion to form a two-stage pile of a different color, a pattern is formed by cutting a part of the fiber of the raised portion to make the pattern portion and the ground portion different colors. It is characterized by the following. Here, that the color of the low-shrinkage fiber and the color of the high-shrinkage fiber are different means that both have different hues and / or color densities. In the following, fibers having high transparency are referred to as bright fibers, and fibers having low transparency are referred to as dull fibers.

As the low shrinkage fiber, a fiber having a dulling agent content of 0.2% by weight or more and 30% by weight or less is used, and as the high shrinkage fiber, a dulling agent content of 0.2% by weight or less is used. It is preferable to use fibers of

The shrinkage ratio of the low-shrinkage fiber and the high-shrinkage fiber is such that the hot-shrinkage ratio of the low-shrinkage fiber is 10% or less and the difference in shrinkage ratio between the low-shrinkage fiber and the high-shrinkage fiber is 10%. It is preferable that it is above. The hot water shrinkage rate here is 9
A fiber having a sample length of 30 cm is immersed in hot water boiling at 8 ° C. or higher for 30 minutes, and the length of the fiber pulled up from the hot water is measured.

Hot water shrinkage (%) = [(Original length of fiber (sample length) −length of fiber after immersion in hot water) / (original length of fiber (sample length))] × 100

In the method for manufacturing a carpet according to the present invention, in order to trim a part of the fiber of the nap portion to form a pattern on the carpet, it is preferable to perform the hand cut alone or at least to use the hand cut together. .

It is preferable to use thermoplastic fibers having a fineness of 2 to 40 denier and a high shrinkage fiber of 1.5 to 20 denier.

Further, the mixing ratio of the low-shrinkage fiber and the high-shrinkage fiber is preferably in the range of 20:80 to 80:20 by weight.

[0013]

Embodiments of the present invention will be described below. The method for manufacturing a carpet according to the present invention includes weaving, as well as emphasizing a pattern imparted to a napped carpet product obtained by tufting or the like, for example,
Spinning the yarn which mixed high shrinkage fiber (down hair) and low shrinkage fiber (guard hair) with different colors and transparency,
Using a loom, tufting machine, etc., a raised carpet material is formed and subjected to wet heat and / or dry heat treatment to obtain a so-called two-stage pile of raised carpet material.
Next, the raised portion (hereinafter referred to as “pile”) is defibrated by brushing, and the crimps are extended by means of a polisher or the like to enhance the contrast between the down hair and the guard hair in color and transparency. By trimming a part of the down hair together with the guard hair or to the desired depth to form a pattern, the pattern is emphasized by highlighting the color difference between the cut part and the uneven part between the ground part and the design. An excellent carpet product.

The method for producing a carpet of the present invention will be described in more detail with reference to specific process examples.

(1) First, a yarn spun by mixing fibers for down hair and fibers for guard hair having different hues, color densities, and clarities is spun, and woven, tufted, or the like is used to prepare a raw napped carpet. Form an anti.

(2) Preliminary brushing (brushing)
→ Pre-shearing (shearing) → Steaming + latex coating → Drying, and then enter the finishing step described below. Here, the preliminary hair treatment eases the entanglement between the fibers to facilitate the contraction of the highly shrinkable fibers due to heat, and the preliminary shearing removes irregularities due to a so-called J-cut (uneven length of pile). This is carried out in order to clarify the level difference between the high-shrinkage fiber and the low-shrinkage fiber when the high-shrinkage fiber exhibits heat shrinkage by trimming and uniform length.

(3) In the finishing step, brushing → shearing → polishing is repeatedly performed to loosen the fiber mass constituting the yarn and to minimize the entanglement between the fibers. When the crimp remaining on the single fiber is stretched and gloss is given by the step of, the independence of the single fiber increases, and the hue of the pile portion which seemed plain at first glance becomes clear,
The color difference and the transparency difference between the fibers of the guard hair and the down hair are emphasized. Further, in the present invention, two or more kinds of fibers having different shrinkage ratios when heated and different in hue, color density and transparency are mixed and spun, and a napped carpet product is formed using the above-mentioned means, and finished. By performing the treatment, the down hair having a large shrinkage and the guard hair having a small shrinkage are divided into two stages, and a so-called two-stage pile having different colors is obtained.

As described above, in the present invention, a step (color difference) is effectively produced by forming a two-stage pile from low-shrinkage fibers and high-shrinkage fibers having different colors and transparency. In addition, by using bright fibers for the high-shrinkage fibers serving as down hairs and using dull fibers for low-shrinkage fibers serving as guard hairs, the steps can be more effectively emphasized. Regarding hue and color density, it is more effective when the guard hair is light and the down hair is dark, but conversely, even when the guard hair is dark and the down hair is light, the color difference is emphasized by the contrast between the brightness of the bright and dull. be able to. Regarding transparency, in any case, the low-shrinkage fiber used for the guard hair has a high content of a dulling agent and is opaque. The total content of the agent is 0.2% by weight or more and 30% by weight or less based on the fiber weight;
Preferably, it is in the range of 0.3% by weight to 20% by weight. This is because when the transparency of the guard hair is high, the hue of the down hair is transmitted through the guard hair and reflected on the pile surface, and the hues of the down hair and the guard hair are mixed, so that the contrast between the two is not clear.
On the other hand, as the high shrinkage fiber used for the down hair, one having higher transparency than the low shrinkage fiber is used, and the content of the dulling agent is desirably 0.2% by weight or less. In addition, as the fiber for the guard hair and the fiber for down hair,
Multiple types of fibers may be mixed and used respectively, and when mixing and using multiple types of fibers for guard hair,
If the guard hair is dull as a whole, bright fibers may be mixed therein.

The dulling agent referred to in the present invention includes titanium dioxide, silicon oxide, zirconium oxide, aluminum oxide, magnesium oxide, calcium oxide, zinc oxide, tin oxide, titanium hydroxide, aluminum hydroxide, magnesium hydroxide, Examples include metal compounds such as zinc hydroxide and, particularly, metal compounds such as antimony trioxide, antimony pentoxide, and metastannic acid used as a flame retardant, but are limited to these as long as they are compounds having an effect of lowering transparency. It is not something to be done.

(4) The guard hair is trimmed to the vicinity of the tip of the down hair when the pattern is imparted to the two-stage piled napped carpet obtained in this manner. By trimming, the hue of the down hair appears on the surface of the trimmed pattern portion, and the applied pattern appears to be emphasized by the color difference from the guard hair in the ground portion.

In the above case, the means for forming the cut pattern on the pile may be pattern shearing, design shearing, or the like, but cutting by hand cutting can enhance the design quality most, and the hue of the cut part is the hue of the guard hair. It is preferable because the pattern can be emphasized because the pattern can be emphasized, and it is preferable that the pruning is performed by the hand cut alone, or the pruning is performed by using at least the hand cut in addition to the other means as described above. In the case of cutting by hand cutting, a hue gradation effect (blurring effect) can be exhibited by cutting a gentle slope from the tip of the guard hair to an arbitrary depth of the down hair. For example, FIG. 1 is a schematic side view of a carpet according to the present invention. In the figure, reference numeral 1 denotes the gentle cut surface of the gentle slope, 2 denotes a cut and removed portion, and 3 denotes a tip portion (pile plane) of a guard hair. 4 is a guard hair, 5 is a tip of a down hair, 6 is a down hair, 7 is a base cloth of a carpet, and 8 is a normal cut surface. By cutting in a gentle slope as shown in the figure, a gradation effect is obtained. Is expressed. In this case, a gentle inclined cutting surface 1
Is preferably about 10 degrees with respect to the horizontal plane.

In the present invention, the fineness of the fibers constituting the pile is 2 to 40 deniers, preferably 3 to 20 deniers for guard hairs, used alone or as a mixture of a plurality of types. For down hair, 1.5 to 20 denier, preferably 2 to 10 denier fibers are used alone or in combination of two or more. If the guard hair is less than 2 denier, the hair tips are entangled in a felt shape when used as a carpet and significantly impair the aesthetic appearance. If it exceeds 40 denier, the coarse hair is strong and the pile density is coarse, so the down hair In addition to the drawback that it is difficult to obtain a contrast with that, it is difficult to obtain sufficient workability in terms of spinnability and weaving. Further, it is preferable to use thermoplastic fibers as these fibers, for example, as the fibers for guard hair, acrylic fibers, modacrylic fibers, polyester fibers, polypropylene fibers, vinyl chloride fibers, and the like, The down hair fiber is not limited to the above, as long as it is an acrylic fiber, a modacrylic fiber, or any other fiber that shrinks as described later by wet heat treatment under normal pressure of about 100 ° C. and / or dry heat treatment of about 130 ° C. Not something.

Regarding the shrinkage rate of the guard hair fiber and the down hair fiber, the difference in the shrinkage rate between the guard hair fiber and the down hair fiber when subjected to a heat treatment by wet heat or dry heat is at least 10% or more. desirable. If the difference in shrinkage is smaller than 10%, the guard hair and the down hair are mixedly visible in the eyes, and it is difficult to enhance the pattern by the color difference when the pattern is cut. The hot water shrinkage of the highly shrinkable fiber is preferably 20% or more, more preferably 20% to 50%. The hot water shrinkage of the low shrinkage fiber is preferably 10% or less, more preferably 5% or less. If the shrinkage ratio of the low shrinkage fiber exceeds 10%, the step of the two-stage pile becomes small, which is not preferable.

The down hair fiber and the guard hair fiber can both be colored by using an inorganic or organic coloring agent. However, the pattern obtained by hand-cutting is changed depending on the difference in hue and / or color density between the two. In order to make the fibers appear, the colorants contained in both fibers must not have the same hue or color density.

The fibers for down hair and guard hair constituting the pile are cut into lengths suitable for spinning, and the weight ratio is 20:80 to 80:20, preferably 30:70 to 70:70. Mix at a ratio of 30 and form the yarn using carded or short carded spinning. In this case, if the ratio of the down hair fibers or the guard hair fibers is less than 20% by weight, the contrast of the hue, the color density, and the transparency of the two cannot be sufficiently obtained, and even if a pattern is formed, this is emphasized. I can't.

According to the method of manufacturing a carpet according to the present invention, the pattern is formed by cutting using a hand cut or the like as described above, whereby the color and the transparency of the guard hair made of dull fiber in the ground portion are improved. The contrast between the color and the transparency of the down hair made of the bright fiber in the pattern portion that has appeared makes it possible to obtain a napped carpet product excellent in design. Furthermore, if the trimming is performed by hand cutting, it is possible to change the pattern for each carpet, making it possible to create a very unique product with a different pattern for each user, such as entering the name of the user It is also possible to express the originality by trimming the user's own design into a pattern.

[0027]

【Example】

(Example 1) For guard hair, full-dull flat fibers (7 denier x 127 mm, 0.15% of titanium dioxide and 5.0% of aluminum hydroxide as dulling agents were used per fiber weight (hereinafter referred to as "on the weight of fiber"). ”As an abbreviation of“ owf ”.)
5% thing. 30% by weight, and full-dull flat fibers (3 denier × 127 mm, dulling agent and hot water shrinkage are the same as those of 7 deniers) 20% by weight, and a bright shrinkable stock solution colored fiber for down hair (4 denier × 102 mm, containing a dulling agent content of 0%, and a cationic dye as a coloring agent containing a total of 3.0% owf and colored in a rouge and having a hot water shrinkage of 40%) Equivalent to 50% by weight , And a total of 100 kg of the three types of acrylic fibers (provided that the 7-denyl and 3-denier full-dar flat fibers for guard hair are dyed in a very light red color by a normal dyeing method), and a total of 100 kg is mixed, and a simplified worsted spinning is performed. Using a machine (semi-worsted spinning), a 4.2th single yarn of metric count was obtained. The yarn spun by mixing the fiber for guard hair and the fiber for down hair is tufted using a 1/10 gauge tufting machine to obtain a piled carpet product having a pile length of 12 mm and a pile weight of 1 kg / m ^2. Created a web. The raw material is subjected to preliminary brushing to open the yarn forming the pile, and through preliminary shearing, for the purpose of preventing hair removal and expressing shrinkage of the stock solution-colored shrinkable fiber as down hair, provided with a steaming device, After applying the back coating with a dryer, brushing was performed four times, polishing (150 ° C. to 100 ° C.) was performed six times, and shearing was performed twice. At this time, the cloth speed of the polishing process is 5 m / min. The obtained napped carpet product is fully flexible and has one guard hair.
The carpet product was a two-tier pile with 0 mm and 6.5 mm down hair. This carpet product was cut into 1.9m squares and the pattern was cut to a depth of 4mm from the tip of the guard hair of the pile using electric scissors. A polisher carpet with a beautiful contrast pattern with a slightly pale rouge recess was obtained.

Example 2 Production of acrylic semi-dull flat fibers (3 denier × 127 mm, containing 0.3% owf of titanium dioxide as a dulling agent, hot water shrinkage 3.0)
% Stuff. ) 30 kg and also the production of acrylic semi-dull normal cross-section fibers (3 denier x 102 m)
m, containing 0.2% owf of titanium dioxide as a dulling agent and having a hot water shrinkage of 2.0%. ) 20kg total 50
kg of raw cotton was prepared. On the other hand, an acrylic fiber tow of 3 denier single fiber (500,000 denier, containing 0.1% owf of titanium dioxide as a dulling agent) is dyed in a dark blue color by an ordinary dyeing method, dried, and dried by an ordinary method. It is stretched and cut to prepare a 2.4 denier x 89 mm dark blue staple having a hot water shrinkage of 20%, and the same amount as the above-mentioned two types of raw cotton is separated, and the weight ratio is 30:20:50. Was prepared. The mixed cotton was subjected to a worsted spinning and twisting process to obtain a twentieth number double yarn.
Using a 1/10 gauge plain tufting machine, this yarn was used to form a tufted material having a pile length of 10 mm and a pile weight of 900 g / m ² . Then pre-brushed,
After shirring to a pile length of 9.5 mm, the back coating was applied while steaming using a dryer equipped with a steaming device. This material is subjected to the same process as in the first embodiment,
The finishing speed was increased by increasing the polishing cloth speed only to 7 m / min to obtain a carpet having a soft pile portion.
The pile part is about 9mm guard hair, about 7mm down hair
It was a two-stage pile. Measured from the tip of the guard hair of the pile of this carpet product, a sculpture pattern was formed using manual carving scissors to a depth of 6 mm. The portion cut to a depth of 6 mm was fused with the guard hair and down hair. A carpet with a slightly pale navy blue color, a navy blue pattern on a white background, and excellent design was obtained.

Example 3 5 denier × V of commercially available acrylic dull flat fiber (containing about 1.6% owf of titanium dioxide as a dulling agent and 2.4% of hot water shrinkage).
(Bias cut) and 7 denier × V (bias cut) were dyed pale rattan in an amount equivalent to 15% by weight (15 kg each, 30 kg in total), while the hot water shrinkage was 32%. % Acrylic black bright fiber (4 denier × 102 mm, containing no dulling agent and containing 4.5% owf of a cationic dye) corresponding to 70% by weight (70 kg), and a total of 100 kg was prepared. .
These were mixed well, and a 3.5-meter single yarn was spun out using the same semi-worsted spinning machine as in Example 1 above, and the pile length was lengthened with a 5/32 gauge long needle tufting machine. 18mm, pile weight 1200g / m ²
Formed a carpet stock. This material was subjected to the same preliminary polishing as in Example 1, preliminary preliminary shearing, back coating, and brushing.
Twice—Shearing is performed four times, and the guard hair 16
A long pile carpet product having a pile weight of 1100 g / m ² and a two-stage pile of 11 mm down hair was obtained. This carpet product was cut into a square of 2.0 m, and a pattern was formed on the entire surface by hand cutting. At this time, the pattern was measured from the tip of the guard hair of the pile and cut into a gentle slope to a depth of 0 to 10 mm, and the part that swelled to a depth of 10 mm developed a dark gray color, The sloped portion ranging from 0 to 10 mm was colored with a gradation ranging from dark gray to light gray to obtain a carpet product that was extremely excellent in design and had a heavy texture with a pile of soft texture. .

Example 4 Acrylic Fuldal Fiber (5)
Denier × 89 mm, containing 2.0% owf of cellulose acetate, 6.0owf of aluminum hydroxide and 1.0% owf of titanium dioxide as a dulling agent, and having a shrinkage ratio of hot water of 3%. ) 40 kg, full denier fiber (3 denier x 76 mm) of the same kind of fiber, different only in denier and fiber length
30 kg and acrylic semi-dal stock solution colored fiber (4 denier x 64 mm, containing a total of 3.6% owf of cationic dye, colored deep brown, containing 0.2% owf as titanium dioxide as a dulling agent, hot water 30 kg, a total of 100 kg of three types of acrylic fibers were uniformly mixed, and subjected to a woolen spinning and twisting process to obtain 5
A metric # 12 twin yarn of color was spun. However, the 5 denier and 3 denier white fibers are 4
0 kg and 30 kg were separately colored in light brown color, light gray color, cream color, turbid ultra light red color and light green color. Was prepared, and 30 kg of the shrinkable colored fiber was mixed with 70 kg of each set to prepare yarns of five colors. From these five-color yarns, a Wilton loom (Van de Ville) is used to obtain 2
Weaving a carpet stock with a m-square abstract pattern. Next, through the same finishing process as in the first embodiment,
An original carpet fabric having a pile weight of 850 g / m ² was obtained, which was provided with a two-stage pile having a guard hair of 10 mm and a down hair of 7 mm. This carpet material is cut into 2m squares, trimmed using a normal overlock sewing machine, and measured from the pile tip along the outline of the abstract pattern, 4mm
Sculpture by hand cut to the depth of. The resulting product was a beautiful carpet with a clear brown outline for each of the five abstract patterns.

Example 5 For guard hair, acrylic full-dull flat fibers (30 denier × 152 mm) containing antimony trioxide 27% owf as a dulling agent and flame retardant, and having a hot water shrinkage of 1.3% 60 kg) by a usual dyeing method to brown (amount of cationic dye used: 1.2%)
owf). On the other hand, for down hair, acrylic bright fiber white (produced) (4 denier × 10
2 mm, dulling agent content 0%, hot water shrinkage 32%. ) Is divided into 40kg and 60k for the guard hair
g, and a total of 100 kg was uniformly mixed, and a metric type 2.1 single yarn was spun out by semi-worsted spinning. This was tufted by a 5/32 gauge tufting machine to obtain a raw material for carpet. The raw hair was subjected to the same finishing process as in Example 3 so that guard hair 15 mm, down hair 11
mm, a product having a thick monofilament and a strong presence was obtained.
Further, the product was cut into a 1.9 m square, and a simple curved pattern was cut to a depth of 8 mm as measured from the tip of the guard hair using a carving robot. Furthermore, a gentle slope-like pruning of 30 mm in width was performed on both sides of the line with the above-mentioned curved pattern as a reference line by hand cutting, and a beautiful pattern with a gradation effect that turned brown on both sides centering on the beige reference line. Got the carpet.

(Comparative Example 1) Commercially available acrylic fiber (7 denier x 127 mm, bright type having a dulling agent content of 0%, hot water shrinkage of 1.5%) equivalent to 50% by weight was used for guard hair. For the amount and down hair, dark blue acrylic stock solution colored fiber (4 denier × 102 mm,
Dulling agent content 0%, blue-based cationic dye 2.5% o
Contains wf and has a hot water shrinkage of 22%. ) An equivalent amount of 50% by weight, that is, a total of 60 kg, was uniformly mixed and subjected to a semi-worsted spinning process to obtain a 4.5-meter single yarn. This thread,
Pile length 1 using a 1/10 gauge tufting machine
A 1 mm carpet stock was obtained. Next, after performing preliminary brushing, shearing (11 mm setting), steaming and back coating, the same finishing as in Example 1 was performed. However, at this time, the polishing temperature is 17
The temperature was set to 0 ° C. to 120 ° C., and the cloth speed was set to 5 m / min. The resulting carpet product was a relatively soft raised product, with 10 mm guard hair and 8 mm down hair. Although there was a step between the ghat hair and the down hair, and a two-step pile was formed, the hue of the down hair was transmitted and reflected because the guard hair was transparent with bright fibers, and the two appeared to have similar hues. In addition, a hand-cut pattern was added, but the colors of guard hair and down hair fused,
The color difference between the pattern portion and the ground portion was unclear, and the pattern could not be emphasized.

(Comparative Example 2) Acrylic full-dull fiber (10 denier × 152 mm) for guard hair, containing 0.15% owf of titanium dioxide and 5.0% owf of aluminum hydroxide as a dulling agent, 16%
Stuff. ) Was prepared in an amount of 60 kg. On the other hand, acrylic bright stock solution colored fiber (brown) (3 denier x 127 mm,
With a dulling agent content of 0%, a cationic dye content of 2.2% owf, and a hot water shrinkage of 22%. ) 40 kg were prepared, and 100 kg in total was mixed uniformly, and a 4th and 8th single yarn of metric count was obtained through semi-worsted spinning. The yarn was tufted using a 1/10 gauge tufting machine, and pile height 1
A 0 mm stock for carpet was obtained. This was finished using the finishing process used in Example 1 to give a smooth brown marbled product having a guard hair of 9.3 mm and a down hair of 8.6 mm. The product was cut into 1.9m squares and hand-cut arabesque patterns.
The step between guard hair and down hair was small, and a clear pattern could not be obtained. This is due to the slight irregularity of the length of the down hair, which is inevitably generated in the finishing process, and some of the ends of the down hair reach the vicinity of the guard hair at random, and appear to be marbling of the down hair and guard hair. Was. Further, when an attempt was made to obtain a gradation effect by trimming on an inclined surface having a width of about 20 mm, no gradation effect was obtained at all because the step was small.

Comparative Example 3 Example 1 for guard hair
Of the acrylic full-dull flat fibers (three denier × 127 mm, hot water shrinkage 3.5%) used in 7.5.
42.5 kg (equivalent to 85% by weight) of down hair (corresponding to 85% by weight), prepared in the same manner as in Example 1, was used for Example 1 and had a denim color of 4 denier x 102 mm and a hot water shrinkage of 40%. Was uniformly mixed, and a metric-type No. 5 single yarn was spun using semi-worsted spinning. Using a 1/10 gauge tufting machine, the thread is about 2
0% high density and tufting, pile height 11m
m, a raw weight for carpet having a basis weight of 980 g / m ² .
Next, after brushing and polishing were performed through back coating as in Example 1, a soft touch carpet product having a guard hair height of 10 mm and a down hair height of 7 mm was obtained. This is 1.9m
It was cut into corners and trimmed in the form of a line and an inclined surface having a width of 30 mm. The resulting carpet had good steps and contrast between guard hair and down hair, but despite the tufting at a higher density of 20%, the guard hair density was coarse, so the trimmed pattern was not clear, and No gradation effect was observed.

Table 1 shows the structures and evaluation results of the carpets of Examples 1 to 5 and Comparative Examples 1 to 3. In addition,
The evaluation results in Table 1 were obtained by visually performing a sensory evaluation of the contrast of the color and the transparency between the pattern portion and the ground portion of the finished carpet, and “○” indicates that the pattern was clear, and “△” indicates that the pattern was slightly unsatisfactory. Clear, “x” indicates that the pattern is unclear.

[0036]

[Table 1]

[0037]

As described above, according to the present invention, it is possible to provide a carpet excellent in design and having a distinctive pattern due to unevenness having a color difference.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a carpet according to the present invention.

[Description of Signs] 1 Gentle slope-shaped cut surface, 2 Cut portion removed, 3 Guard hair tip, 4 Guard hair, 5 Down hair tip, 6 Down hair, 7 Garpet base cloth, 8 Normal cut surface.

Claims (6)

[Claims] 1. A low-shrinkage fiber and a high-shrinkage fiber having different colors from each other, wherein the low-shrinkage fiber is a fiber having low transparency, and the high-shrinkage fiber is higher in transparency than the low-shrinkage fiber. A fiber or a sliver that is a mixture of the low-shrinkage fiber and the high-shrinkage fiber, forming a raw material of the napped carpet, and performing heat treatment to shrink the fiber of the napped portion to obtain a different color 2 A method for manufacturing a carpet having excellent design characteristics, wherein a pattern is formed by cutting a part of the raised portion after forming the step pile, and the pattern portion and the ground portion are made different colors. 2. A fiber having a dulling agent content of 0.2% by weight or more and 30% by weight or less as the low shrinkage fiber, and a dulling agent content of 0.2% by weight or less as the high shrinkage fiber. The method for producing a carpet according to claim 1, wherein the fibers are used. 3. The hot water shrinkage of the low shrinkage fiber is 10%.
Or less, and a difference in shrinkage ratio with the highly shrinkable fiber is 10
%. The method for producing a carpet according to claim 1 or 2, wherein 4. The method according to claim 1, wherein a pattern is formed by cutting a part of the nap portion, and the pattern is formed by hand cutting alone or at least by hand cutting. 3. The method for producing a carpet according to 1. 5. The fineness of the low shrinkage fiber is 2 denier to 40.
Denier, fineness of high shrinkable fiber is 1.5 denier to 20
The use of a denier thermoplastic fiber,
5. The method for producing a carpet according to any one of 4. 6. The carpet according to claim 1, wherein a mixing ratio of the low-shrinkage fiber and the high-shrinkage fiber is in a range of 20:80 to 80:20 by weight. Manufacturing method.