JPH0457935A - Production of light-brightening nylon woven fabric - Google Patents

Abstract

PURPOSE:To obtain the title woven fabric having excellent surface properties and light-brightening properties incapable of obtaining by usual methods by using a nylon multifilament obtained by high-speed spinning and having specific properties as a warp. CONSTITUTION:A nylon multifilament obtained by spinning at a winding rate of >=3500m/min and having 40-60% elongation, 1.05-2.0 yarnmodified degree and 0-0.4wt.% TiO2 content, and satisfying the equation 0.5<=D1<1/2>/D2 <=3.0 in total denier (D1) and single yarn denier (D2) is used as at least warp to provide the objective woven fabric.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing a nylon fabric with excellent surface feel, particularly shine. The nylon used in the present invention includes 6-nylon, 6°6-nylon, and 4,6-nylon.
- Various nylons such as nylon are exemplified.

[Prior Art] Unlike polyester fabrics, nylon fabrics have few fabrics that have a rich surface feel such as texture and luster. In other words, ordinary nylon without adding a third component has a boiling water shrinkage rate of 12 at most due to its nature. %, so even if you create a yarn with a different cross section or a mixed denier yarn, or if you intertwine or heat it, you will not be able to achieve the same effect of imparting surface textures such as bulkiness and luster as with polyester. Therefore, it is possible to create a yarn mixed with different materials to improve the surface feel, but if you use nylon and dyeable materials, the cost of dyeing will be high, or the biggest characteristic of nylon This results in the disadvantage that various coatings, laminations, rubber coatings, etc., cannot be applied.

[Problems to be Solved by the Invention] An object of the present invention is to provide a method for manufacturing a nylon fabric with a high surface feel, particularly brightness, at a low cost while taking advantage of the characteristics of nylon.

[Means for Solving the Problems] The method for manufacturing a nylon fabric according to the present invention provides
Elongation (DE) 40-60 spun at a winding speed of minutes or more
%, yarn irregularity degree 1.05-2.0゜TiO2 content 0-0
．． 4% by weight, and the total denier (DI) and single yarn denier (D2) are 0.5≦11-1/D*≦3.0
The point is to use a nylon multifilament that satisfies the following for at least the warp.

Note that the degree of yarn irregularity referred to here is calculated by dividing the diameter of the circumscribed circle of the yarn cross section by the diameter of the inscribed circle.

[Function] The present inventors have found that it is necessary to suppress glare and diffused reflection in order to obtain a nylon fabric with a rich surface feel, particularly a high-quality silk fabric-like glitter. Therefore, the spinning speed is 1000
Conventional FDY, which is wound at a speed of less than m/min and then subjected to a drawing process, has a slow spinning speed, resulting in the presence of loops and fuzz, which deteriorates the processing quality of the fabric.In addition, the number of spinning steps is large, causing friction and Migration between single fibers due to twisting or the like progresses, and when made into a woven fabric, diffuse reflection occurs, resulting in a woven fabric with uniform luster, so it cannot be used. On the other hand, nylon filament (DDN) manufactured by direct spinning and drawing method has a
After spinning at a speed of more than m/min, stretching and winding are performed continuously in one process, so there are fewer fuzz and loops, and migration between single fibers does not progress, so single fibers can be separated in the length direction. They can be arranged in an orderly manner, resulting in a fabric that is less likely to cause diffused reflection.

The elongation (DE) of the nylon multifilament used in the present invention must be 40 to 60%. DE is 40
If DE is less than 60%, the rolled shape of the cheese will be poor, making it impractical. If DE exceeds 60%, process passability will be poor, and warp streaks and uneven dyeing will occur in the product, resulting in a decline in quality. .

Furthermore, it is preferably 45 to 55%.

It is necessary that the yarn atypicality is 1.05 to 2.0,
Preferably it is 1.1 to 1.6. As the degree of yarn irregularity increases, the glitter property also increases, but if it exceeds 2.0, a feeling of glare occurs and a delicate surface texture cannot be obtained. Moreover, if it is less than 1.05, there is almost no difference from a round cross section, and the desired glitter cannot be obtained. The cross-sectional shape is not particularly limited, and various cross-sectional shapes such as a triangular cross-section, a hexagonal cross-section, a rhombic cross-section, or an elliptical cross-section can be used.

Total denier (Dl) and single yarn denier (D2) are
It is necessary to satisfy 0.5≦-/D, ≦3.0.0 For example, if Dl is the same, if the value of Jl-1/D2 becomes large, it will be multiplied, so if it exceeds 3.0 The reflection becomes uniform, and the effect of using yarn with a different cross section cannot be obtained, resulting in the same gloss as conventional glossy fabrics, and FT Fun D2
When the value of is small, it approaches monofilament and the glitter property increases, but when it is smaller than 0.5, it becomes hard touch, which is not preferable.

Tie content needs to be 0 to 0.4%. Ti
By keeping the amount of addition of e. low, the brightness can be emphasized, and if it exceeds 0.4%, the color becomes dull.

The average particle size of TiO2 is preferably 0.1 to 0.4 microns. If it exceeds 0.4μ, the glitter property will decrease, which is not preferable. Further, it is technically difficult to make the thickness less than 0.1 μm, and it is not preferable in terms of cost.

More preferably, it is 0.3 to 0.4μ.

It is preferable that the breaking strength is (DT)≧4.5 g/d. If the breaking strength is less than 4.5 g/d, the weavability will be reduced and yarn breakage will occur easily, resulting in poor transparency. Become. More preferably, it is 4.5 to 7.5.

The degree of entanglement due to air entanglement treatment etc. performed to impart convergence is preferably 1 to 40 co/m, and may be set within an appropriate range depending on the warp and latitude of the application. Organization/sizing/
There are no particular restrictions on the dyeing method, etc.

When weaving nylon fabrics, it is necessary to use at least a multifilament that meets the above requirements for the warp, but for the weft, nylon multifilament, cationic dyeable polyester multifilament, rayon filament, etc. that are not according to the present invention may be used. May be used.

[Example] Various nylon multifilaments were made using yarns of the classification shown in Table 1, and after scouring and relaxing with a regular jigger, Suminol Cyanine 5RO, 5%, acetic acid (10%) 5 l/f, and acetic acid were added. Sodium (anhydrous) 2
It was stained using a staining solution containing g/u.

Table 1 Weaving was carried out using the yarns of the above categories and the brands shown in Table 3 as warps and wefts to obtain various fabrics.

The gloss and quality of the obtained fabric were visually judged. The results are shown in Table 3. Each fabric was finished to have the following density depending on the total denier of the multifilament used.

Table 2! As is clear from Table 3, Examples 1 to 5 of the present invention have a random and delicate luster, a rich surface feel, and the fabric has no warp lines and has excellent quality. . On the other hand, in Comparative Example 6, the degree of system atypicality exceeds 2, causing a feeling of glare and poor quality; in Comparative Example 7, fl-1/D2
Since it exceeds 3, the gloss becomes uniform and only the same gloss as the conventional glossy fabric can be obtained.Comparative Example 8 contains 3% of Tie, and the gloss becomes dull. Comparative example 9 has an elongation of 6
If it exceeds 0%, the fabric will have warp lines and its quality will deteriorate.
Comparative Example 10 used yarn obtained by the FDY method, so there were many fluffs and loops, migration also progressed, and the gloss was uniform.

[Effects of the Invention] The present invention is configured as described above, and it was possible to obtain a glittering fabric with a rich surface feel that cannot be obtained with ordinary nylon threads. Furthermore, the fabric obtained by this method has high quality and does not impair the dyeability or processability of nylon.

Claims (1)

[Claims] In producing a nylon fabric, the elongation (DE
) 40-60%, yarn irregularity 1.05-2.0, TiO_2 content 0-0.4% by weight, total denier (D_1) and single yarn denier (D_2)
A method for producing a glittering nylon fabric, characterized in that a nylon multifilament satisfying 0.5≦√(D_1)/D_2≦3.0 is used for at least the warp.