JPH05148752A - Pile textile product developing no fluff - Google Patents

Abstract

PURPOSE:To obtain the subject textile product having stiff touch feeling, also durable to dyeing by using specific spun yarns put to thermofusing treatment as pile yarns. CONSTITUTION:The objective textile product where the following acrylic fiber- mixed spun yarns are used as pile yarns: (1) causing no single fiber splitting even after untwisted by the number of first twist after thermofusing treatment and (2) reducing the Young's modulus after thermofusing by 10-50% compared to that of non-thermofused yarns. This textile product develops virtually no fluffs in the case of both loop pile fabrics and cut pile fabrics; for the latter fabrics, the mixing rate for such acrylic fibers causing no pile chip splitting is set at >=30wt.%.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile fiber product used for mats, carpets, and other rugs, which are preferred to have a hard texture and to suppress the generation of fluff, and for toiletry products which are dyed.

[0002]

2. Description of the Related Art Resin processing is generally used to give a fabric a hard texture. It is already known to apply a resin processing to the yarn to harden the texture of the yarn itself. However, the resin processing has a drawback that the resin adheres to the interstices of the fibers and remarkably impairs air permeability and water absorption of the fibers.

Japanese Patent Publication No. 51-34519 discloses a method of processing pseudo synthetic linen for acrylic synthetic fibers. However, when a spun yarn made of acrylic fiber is continuously impregnated with a solvent aqueous solution such as ethylene carbonate by this method and then continuously dried, the texture of the spun yarn becomes too hard.
Therefore, in this processing method, the spun yarn is softened by the kneading effect. This is a method that has been unavoidably taken because the winding tension is inevitably applied during continuous processing and the spun yarn becomes too hard. However, this rubbing effect has a drawback that the operation is complicated and the adjustment is difficult. This is a waste of the process because the fibers that have been carefully attached will be separated by the rubbing effect. In addition, a special device is required for continuous processing, which increases the cost.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to impart a hard texture to the yarn while suppressing the bulge of the yarn, suppress the fluffing of the pile, and dye the product without using a special device. To provide cheap pile fiber products at low cost.

[0005]

Means for Solving the Problems The inventors of the present invention, after impregnating an aqueous solution of a solvent of acrylic fiber into a knitted spun yarn,
As a result of detailed research on suitable conditions such as drying temperature for drying without load other than its own weight, dry space, adhesion amount, etc., a spun yarn with almost no fluff was found, and this spun yarn was used as a pile yarn to achieve the present invention. Was completed.

That is, according to the present invention, the acrylic fiber is 30% by weight.
After being mixed-spun and heat-sealed, the single fibers do not separate even after being untwisted by the number of twists of the lower twist, and the Young's modulus after heat-sealing is 10 as compared with the Young's modulus of the yarn not heat-sealed. Is used for the pile yarn.

The spun yarn used in the present invention is a yarn in which 30% by weight or more of acrylic fiber and / or acrylic fiber as specified by the Household Goods Quality Marking Method is mixed. If the blending ratio is less than 30%, the heat fusion effect is weak and the expected effect cannot be obtained. Of course, acrylic fiber or and acrylic fiber is 100
May be%. More preferably, the blending ratio is 50% by weight
That is all. The acrylic blended yarn used in the present invention may be non-bulky yarn or bulky yarn. Further, it may be spun yarn after dyeing.

Solvents for acrylic fibers or acrylic fibers used in the present invention include sulfolane, ethylene carbonate, dimethylformamide, dimethylsulfoxide and dimethylacetamide. Among them, sulfolane is the easiest to handle and is preferable. Solvents of these acrylic fibers or acrylic fibers are used by diluting them in order to uniformly attach them to the spun yarn. An organic solvent such as acetone can be used as the diluent, but it is not so preferable because the recovery device becomes large in size. Water is usually used as the diluent.

As a solvent for the acrylic fiber or the acrylic fiber used in the present invention, other softening agents, antistatic agents, leveling agents and the like may be used at the same time as long as they do not cause any problems.

The concentration of the acrylic fiber or the aqueous solution of the acrylic fiber in a solvent varies depending on the draw ratio. Further, the squeezing rate varies depending on the liquid removal method. For example, using a centrifugal dewatering machine, it is possible to squeeze from 30 to 40% by weight based on the usual yarn weight. When squeezed with a mangle roller, the liquid content is about 1
It can be squeezed to about 00% by weight. Since the liquid-containing cassette is hung, dried, and heat-treated, it is preferable that the liquid content is low so that there are few spots. If the liquid content is high, uneven adhesion tends to occur during drying and heat treatment.

The solvent of these acrylic fibers or acrylic fibers is 2.5 to 6.5% by weight based on the weight of the spun yarn.
Good to attach. Preferably 3.0 to 5.5% by weight
Is. As the solvent adhesion amount of these acrylic fibers or acrylic fibers increases, the heat fusion effect increases,
The texture of the yarn becomes harder, the fuzz of the pile can be suppressed, and the breakage of the tips of the cut pile can be suppressed. If the amount of these acrylic fibers or acrylic fibers adhering to the solvent exceeds 6.5% by weight, the texture of the spun yarn becomes too hard, and the workability of the subsequent processes such as knitting and sewing is markedly impaired.

The thermally fused spun yarn of the present invention has a lower Young's modulus as the amount of acrylic fiber or acrylic fiber adhering to the solvent increases. This is thought to be because the fine fibers have a fine network structure due to heat fusion. A similar network can be made in resin processing, but the Young's modulus is expected to be high due to the coarse mesh.

If the blending ratio of the acrylic fiber or the acrylic fiber other than the acrylic fiber is lowered, it is necessary to increase the amount of the acrylic fiber or the acrylic fiber deposited on the solvent in order to obtain a desired effect. Therefore, the concentration of the acrylic fiber or the aqueous solution of the acrylic fiber in the solvent is adjusted so that the spun yarn has a desired texture so that the amount of the acrylic fiber or the solvent of the acrylic fiber adhered to the spun yarn is in the above range. It may be selected as appropriate in consideration. The spun yarn to which a specified amount of the acrylic fiber or the acrylic fiber aqueous solution of the solvent is adhered is heat-sealed simultaneously with drying while keeping the shape of a skein.

If the size of the cassette is too large, the yarn becomes thin due to the weight of the cassette itself. Therefore, the weight of the cassette is preferably 500 gr or less. It is more preferably 250 gr or less. 5
If it exceeds 00 gr, it is advisable to put it in a net without hanging it, or place it on the net to dry and heat it. The drying and heat treatment temperature is 120 at the temperature of the spun yarn itself.
C. or less is preferable. If it exceeds 120 ° C, the acrylic fiber itself may be colored, which is not preferable. More preferably, it is 100 ° C. or lower.

The spun yarn of the present invention, which has been heat-fused, exhibits excellent adhesion between single fibers, while maintaining a suitable hard texture without thinning the yarn thickness. As a result, in the case of a pile product, both loop pile fabrics and katsopile fabrics have excellent fluff resistance and excellent abrasion resistance, and cut pile fabrics do not crack the pile tips even when worn.
Further, since the fibers themselves are fused to each other, there is no foreign matter such as resin between the fibers, and the water absorption and air permeability of the fiber product are not impaired. The heat fusion state of the spun yarn of the present invention is different from the heat fusion state of commonly used heat fusion type fibers. The heat-melting type fibers are in a form in which the melted parts are gathered in the form of droplets during heat-sealing, and the form is similar to that of the resin addition process. In the heat fusion state of the fiber of the present invention, the deformation of the fiber is so small that it is difficult to find the bonded portion with a scanning microscope.

In order to produce a pile fiber product using the heat-bonded spun yarn, the heat-bonding conditions of the spun yarn are set in advance in consideration of the product texture, knitting of sinker pile and the like, sewing machine and tufting. The case of the heat-bonded spun yarn is wound around an appropriate amount of cheese or the like, and then used in processes such as knitting, sewing, and tufting. When rewinding the cheese, consider the release tension and set the appropriate winding tension and twill angle.

The spun yarn of the present invention may be a yarn which is dyed with cotton and then spun, or a dyed yarn which is spun and then dyed.
The spinning method differs depending on the fiber length used, blending, etc.
There is no particular limitation such as long spinning. The number of twists during spinning is the product texture,
It is set considering the spinnability and the hardness of spun yarn. Since the number of twists may be restricted depending on the spinning method, selection should be made taking into consideration the entire process and product texture. Although the tension may increase in the knitting process as the texture of the spun yarn becomes harder, waxing may be performed on the heat-bonded spun yarn in order to improve workability in the knitting process, if necessary.

The Young's modulus used in the present invention was determined as an initial elastic modulus from the SS curve measured by using a commonly used constant speed tensile strength / elongation measuring machine. The number of twists in the present invention was measured by a twisting machine according to JIS. The fiber splitting property in the untwisted state was visually evaluated by using a twisting machine and holding the spun yarn in the untwisted state. The wear resistance of the pile was measured according to the JIS taper method, and cracks and fluffs on the tips were visually evaluated. The adhered amount of sulfolane on the spun yarn was measured by gas chromatography using a flask with a reflux tube and immersing the spun yarn in water at 80 ° C. for 60 minutes to elute the sulfolane.

[0019]

The present invention will be described in more detail with reference to Examples, but the present invention is not limited thereto. In the examples, "%" is "% by weight" unless otherwise specified. Production Example 1 Acrylic semi-dull 3d, 102 mm bias cut 10
Using 0%, a 2/10 non-val spun yarn was manufactured by a standard method by 4-inch spinning. The upper twist was 90 times / 25 mm and the lower twist was 200 times / 25 mm. The spun yarn obtained was rewound into a case having a length of 1 m and a size of 250 gr.

Example 1 Using the spun yarn case produced in Production Example 1, an aqueous sulfolane solution was immersed as a solvent for acrylic, and then centrifugally deliquored to deposit a prescribed amount. The adhering amount of sulfolane was adjusted by changing the concentration of the sulfolane aqueous solution while keeping the squeezing ratio of the centrifugal dehydrator constant. The amount of sulfolane attached is shown in Table 2. Next, with this cassette suspended in a cassette dryer, in hot air at 100 ° C,
It was dried and heat-treated for 10 minutes. The Young's modulus of the obtained heat fusion spun yarn is shown in Table 2. The obtained heat-fusible spun yarn was sewn by a sewing machine using a plain cotton fabric as a base fabric, 10 gauge, 13
A cut pile sewing machine was used for stitching to create a cut pile matte fabric.

The wear resistance of the cut pile mat fabrics was compared with the naked eye after a load of 1 kg and 5000 revolutions by the taper method.
The results are shown in Table 2. No. 1 of the present invention. Nos. 3 to 6 showed no increase in the Young's modulus of the spun yarn, and the cut pile mat fabric showed excellent wear resistance.

[0022]

[Table 1] In the table, the evaluation of fluff is shown by the following symbols. "A" Remarkably fluffy. "B" There are many fluffs. "C" There is little fuzz. "D" Almost no fluff. The cracks on the pile tips are indicated by the following symbols. "A" All hair tips are broken. "B" Most hair tips are broken. "C" Most hair tips are not broken.

Example 2 In the same manner as in Example 1, the sulfolane was changed to ethylene carbonate, the Young's modulus of the heat-sealed yarn and a loop pile matte were produced with a loop pile sewing machine, and the abrasion resistance of this matte was measured. The results obtained are shown in Table 3. No. 1 of the present invention. Nos. 9 to 12 showed no increase in the Young's modulus of the spun yarn, and the loop pile mat fabric showed excellent wear resistance.

Example 3 Acrylic semi-dal 3d, 102m in the same manner as in Production Example 1.
m bias cut 20%, 30%, 50% and polyester semi-dull 3d, 102 mm bias cut 80%, 70%, 50% respectively, using spun yarns with different blending ratios, and in the same manner as in Example 1. Table 4 shows the Young's modulus of the spun yarn having a sulfolane adhesion amount of 2.6%, and the wear resistance of the cut pile mat fabric. No. 1 of the present invention. Nos. 15 and 16 showed no increase in the Young's modulus of the spun yarn, and the cut pile mat fabric showed excellent wear resistance.

Comparative Example 1 Sulforane was attached to the spun yarn produced in Production Example 1 in the same manner as in Example 1, and then heat fusion was performed at a heater temperature of 180 ° C. by a dry heat drawing machine using a plate heater. When the feed and delivery speeds were the same, the roller wrapped around the roller, so a tension of 1.05 was applied. Table 5 shows the obtained Young's modulus of the heat-bonded yarn and the wear resistance of the cut pile mat fabric. The bulge of the heat-bonded spun yarn was reduced, and the part in contact with the plate became flat. The Young's modulus of all yarns is 2 compared to untreated yarn.
It was higher than 0%. In the obtained cut pile matte material, the yarn was apparently thin and the base fabric was visible. Further, since the pile was too hard, the pile appeared to be broken when compressed and the appearance was significantly impaired.

[0026]

[Table 2]

[0027]

[Table 3]

[0028]

[Table 4]

[0029]

[Table 5]

[0030]

The heat-bonded spun yarn of the present invention exhibits an excellent adhesion between single fibers, while the yarn thickness does not become thin, and an appropriate firm texture can be maintained. Further, when a pile product is formed by using this yarn, both the loop pile fabric and the cut pile fabric show significantly less fuzz and exhibit excellent abrasion resistance. Furthermore, in the cut pile fabric, even if the pile is worn, the tips of the pile hairs do not break, and the product can withstand dyeing.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location D06C 7/02 D06M 13/248

Claims (1)

[Claims] 1. A Young's modulus of a yarn in which 30% by weight or more of acrylic fibers are mixed and spun, and after heat fusion, the single fibers are not separated even after being untwisted by the number of twists in the lower twist The pile fiber product is characterized in that a spun yarn whose Young's modulus after heat fusion is reduced by 10 to 50% is used for the pile yarn.