JPS6065115A - Modified conjugated yarn - Google Patents

Abstract

PURPOSE:Modified conjugated yarn providing cloth having improved surface touch, bulkiness, tension, etc., obtained by forming released, separated parts with limited length on the neighboring bonded parts of polyester and polyamide of conjugated yarn. CONSTITUTION:In conjugated yarn wherein the fiber-forming polyester polymer 1 and the fiber-forming polyamide polymer 2 are alternately arranged plural times in a neighboring state, for example, the yarn is twisted and untwisted so that the released and separated parts 3 with limited length are randomly formed on the bonded face of the polymer 1 and the polymer 2 of the conjugated yarn, to give the desired modified conjugated yarn. The conjugated yarn has at least one combination of separated yarn of 1-2, 1-2-1, and 2-1-2 neighboring arrangements.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an A-filament composite yarn having a novel yarn form.

(Prior Art) For synthetic fibers, many composite yarns in which different types of fiber-forming polymers are combined have been proposed for the purpose of improving the crimp form or obtaining ultrafine filaments.

In the past, composite yarns were proposed in which two types of fiber-forming polymers were combined in a side-pie-side type, or a sewn-core type, and in recent years, in order to obtain ultra-fine filaments, composite yarns have been proposed in a seabird type. Proposals have been made in which different types of fiber-forming polymers are arranged, and in which different types of fiber-forming polymers are arranged adjacently multiple times.

However, the conventionally used
Side-type composite yarns and sheathed-core type composite yarns have extremely simple yarn forms, and the texture and function of fabrics obtained with these composite yarns have not always been satisfactory.

In other words, it has been proposed that the crimping form of such composite yarns is a combination of crimping that takes advantage of the physical property differences between different types of fiber-forming polymers, and processing crimping that is imparted through high-order processing after forming a single yarn. However, in the end, these were nothing more than one continuous composite filament with some variation in its crimp form.

On the other hand, seabird-shaped composite yarns and composite yarns that are arranged adjacent to each other multiple times are aimed at obtaining ultrafine fibers, and do not take advantage of the unique characteristics of composite yarns.

In other words, for seabird type composite yarn, ultrafine fibers made of island components are obtained by dissolving and removing the sea component, and for adjacent arrangement type composite yarn, it has been proposed to divide the yarn into ultrafine fibers by treating with a swelling agent or the like. ing.

Although it is possible to obtain ultra-fine filaments by such division, it does not take full advantage of the properties of composite yarns, and 49. In addition, such melting and dividing processes are difficult to handle when handling the yarn as a weir, and the fabric is In many cases, this process is carried out after the process has been carried out, making it difficult to utilize the properties of the composite yarn itself, and it has not been possible to obtain a yarn that is fully satisfactory in terms of feel and functionality.

(Object of the Invention) The object of the present invention is to improve the conventional drawbacks and to provide an extremely superior FC surface touch, bulkiness, and tension.

It is an object of the present invention to propose a compound gold thread with different striations having a new form that allows fabrics to have a waist texture.

(Structure of the Invention) The present invention provides a composite yarn in which a fiber-forming polyester polymer [F] and a fiber-forming polyamide polymer (N) are alternately arranged adjacent to each other a plurality of times. By peeling and splitting at long points and distributing the peeling and splitting points along the yarn axis direction, a multifilament yarn having different degrees of density is formed, and a part of the multifilament yarn K(Pl-( N),
f)-(N)-(P), (N)-Q')-N)nol
This is a composite yarn with different filaments characterized in that it contains at least one set of split filaments having an I-contact arrangement.

The composite yarn used in this Wi# is made up of a fiber-forming polyester polymer [F] and a fiber-forming polyamide polymer (H) alternating multiple times. It is arranged. As the fiber-forming polyester polymer, terephthalic acid or its ester-forming derivative, 2HO (CHl), O
H-containing polymethylene glycol (where p is an integer from 2 to ]), in particular, polyethylene terephthalate or Polytetramethylene terephthalate is preferred. If desired, amounts of up to about 15 molar of other glycols or other esters or oxycarboxylic acids may be added to the reaction mixture during the preparation of the above polyesters. Examples of compounds that can be added include, for example, 3 as an acid component.
．． 5-dicarboxyhensenesulfonic acid, 7-dipic acid,
One or more dibasic acids or oxyacids such as sebacic acid, inphthalic acid, diphenylsulfone dicarboxylic acid, naphthalene dicarboxylic acid, and oxybenzoic acid; glycol components include, for example, trimethylene glycol; 1 selected from propylene glycol, cyclohexane dimetatool, neopentyl glycol, etc.
A species or two or more compounds. Of course, the copolymerized polyester may be mixed with other polyesters as long as the polymethylene terephthalate units are within 85 moles.

As the fiber-forming polyamide polymer, nylon 4. knife 6. Nine 6, 6. Na 6 - Ylon 7, Nylon 6.1 G, Nylon 11° Nylon 12. Bis(p-7 minocycouhexyl)methane and 1,10-decamethylene dicarboxylic acid are polyamides made from 1,9-nonamethylene dicarboxylic acid, and polyamides copolymerized with less than 15 moles of component #I3, and It refers to a copolymer or a mixture of two or more of these, and 4IK Nine-6 is preferred. Furthermore, these fiber-forming polyamides contain two types of general formulas (P) and (B) in an amount of 1 to 15% by weight relative to the wrinkled polyamide, in order to impart antistatic properties to the resulting offal and prevent staining. It is preferred to add a mixture of compound eyelids.

CuH*n+-■(CH*CHRO) iHKNext,
In the composite yarn used in the present invention, it is important that such fiber-forming polymers are alternately arranged adjacent to each other multiple times. As for the number of alternately arranged in contact with KIII, the total of the component part [F] and the axis is in the range of 4 to 40, more preferably 10 to 2.
Examples include those used within the range of 0. If the number of times of adjacent arrangement is less than 4, the divided fibers will not form a composite structure such as (g)-(f), and the object of the present invention cannot be achieved. Moreover, if the number of times of adjacent arrangement exceeds 40, the equipment and operation of the spinning process becomes complicated, which is not preferable.

In this way, the fiber-forming polymer is alternately applied multiple times.
Preferably, the cross section of the composite yarn to be arranged has a hollow annular cross section in a direction perpendicular to the yarn axis. In particular, since the composite yarn used in the present invention is obtained mainly by mechanical processing to obtain split fibers, it is preferable to have a hollow part, and the hollow part has a hollowness ratio of 0.1 to 15-. ,
More preferably, those having a hollowness ratio of 0.1 to 109 g are exemplified. Here, the hollow ratio is the ratio S, /5oxto, which is obtained by enlarging the drawn yarn under a microscope and measuring the cross-sectional area SO of the single fiber and the cross-sectional area S of the hollow part.

It is expressed as

Further, the shape of the hollow portion is not limited to a perfect circle, and may be elliptical or non-circular.

FIG. 1 is a cross-sectional view showing an example of a cross section in a direction perpendicular to the fiber axis before peeling and splitting the composite yarn used in the present invention, where l is a fiber-forming polyester polymer [F], and 2 is a fiber This figure shows a formable polyamide violet aggregate. The best example is one having a hollow annular lid cross section as shown in FIG.

Figure 1 (OK) Even if the hollow annular composite yarn has a symmetrical structure, it can be divided into different fibers, [F] - (to), (P) - (to) -(P).

Easy to obtain fibers consisting of a combination of axes - 0 - axes 9- Rukoto can.

In addition, the total weight proportion of the fiber-forming polymer ψ), (N is 3
Can be arbitrarily selected within the range of 0 to 70:30,
Further, the denier of each component can be arbitrarily selected according to the purpose of use, and is preferably 0.1 to 1.
A range of 2 is exemplified.

Incidentally, such a composite yarn can be manufactured by conventionally known spinning and reeling methods.

The yarn of the present invention uses such a composite yarn to form an adjacent interface formed by fiber-forming polymers 0, (he), and K (i.e.,
When peeling and splitting the joint surface), the peeling and splitting occurs at random finite length locations.

Fig. 182 is a perspective view schematically showing an example of the composite yarn of the present invention, in which 1 shows the constituent parts of the polymers of the shaft, and 3 shows the voids created by the division. show.

As described above, the composite yarn of the present invention is characterized in that the peeling and splitting occurs randomly and at finite length locations. Furthermore, the peeling and splitting points are distributed along the yarn axis direction and preferably occur without interruption (that is, continuously), resulting in multifilament yarns having various finenesses.

Moreover, since the peeling and dividing is performed at random finite length locations as described above, the dividing lines are connected somewhere and have a kind of network structure.

Further, the multi-filament yarn of the present invention has a part of the multi-filament yarn (R-(Nl, [F]-(to), 0° axis-0
- It is important that at least one set of split filaments having the llIl arrangement of the axes is included.

FIG. 3 is a cross-sectional view showing an example of the cross section of the J%SS composite yarn of the present invention, in which 1 is made of polymers of 0 and 2 is polymers, some of which are h-n, ■-cross-〇.

■-[F]-It is a split line with the axis remaining joined.

Moreover, it is preferable that five or more split fibers of these three types are contained in any given cross section.

If the content is less than 5%, the effect of the dividing filaments of [F]-dynamics will be weak, and there is a risk that the effect of creating desired voids between the filaments will be reduced.

In addition, peeling and division to give such a thread shape is as follows:
A continuous mechanical force may be applied to the composite yarns of the adjacently arranged structure, such as continuous ironing treatment, heating-untwisting treatment (for example, false twisting without using a heating device). This can be achieved by high pressure treatment eK (processing), and in addition to these, it is also possible to use in combination with mild entangling treatment, partial heat treatment, and temperature control heat treatment.

Further, the content of P)-axis, PI-Kan-lP), (he)-■-(he) can be adjusted by the degree and combination of these mechanical effects. However, when used in conjunction with heat treatment, the amount of heat and temperature that would affect the entire yarn must be avoided. This is because heating before splitting the composite yarn Nl, (P)-11)-(1')
, H-(P-(N1, etc.), which may inhibit twisting and crimping due to compounding.

(Action of the invention) In the multi-filament composite yarn of the present invention having the above-described structure, does the peeling and division occur in the direction of the yarn axis #? E? This is presumably because the splitting is done randomly, but the split fibers have virtually no unevenness, even though they have various finenesses. Therefore, there is virtually no occurrence of unevenness due to poor curling or color unevenness where the hue changes slightly, which are seen in conventional fabrics made of composite yarns.

In addition, some of the divided filaments include ■-axis, aj)
Since it contains a composite split thread consisting of a combination of -axis one (P) and axis -■-axis, these split filament yarns undergo thermal history as they undergo post-fire processing. , 13- This causes twisting and crimp due to the difference in physical properties between 0 and 13- filaments, and creates delicate voids between the filaments.

Furthermore, the voids are not only caused by changes in the shape of the twisted or crimped portion, but also are accentuated by the complex network structure of the yarn itself. In other words, the relative yarn length of the split filament that caused the twisting or crimp decreases due to its morphological change (a type of shrinkage), but from this K the entire composite yarn shrinks in the yarn axis direction. The split line that has been subjected to the action and has caused twisting and crimp, and the twisting and crimp.
Although crimp does not occur much, there is an apparent yarn length difference between the split fibers and the fibers in which no crimp occurs, and the split fibers having these yarn length differences form a network structure. A thread with unprecedented fluffiness and electrical properties can be obtained.

In the conventional method of using composite yarn, it is divided by chemical treatment after being made into a fabric, so it is difficult to create a yarn structure like the one of the present invention.
It has also been proposed that the fibers be divided into various finenesses by raising the fabric after being made into a fabric14-; Since it was divided, it could not function like the thread of the present invention.

The yarn of the present invention has a network structure that allows delicate gaps between the Km strips as described above, so it can be used to create a good fabric with fluffiness, and a wire that does not have many splits. Since most of the filaments are mixed in, it is possible to give the fabric an appropriate stiffness and tension, and it is possible to improve the feel of polyester fabric by alkali treatment, which is conventionally applied to polyester fabric, without the need for alkali treatment. It is. (However, this does not preclude alkali treatment of the fabric made from the yarn of the present invention.) Furthermore, if a yarn having a hollow portion is used as the starting yarn of the composite yarn of the present invention, the heating-untwisting process 114! It is possible to easily separate and split the strands by just twisting the strands.
F] - ring, [F] - (to) - [F], eVl) - (g)
- The content of the shaft can be increased or decreased, and the degree of fullness due to the network structure can be adjusted. (It is thought that peeling and splitting is likely to occur due to the presence of hollow parts).

Furthermore, in the composite yarn of the present invention, it is also possible to use ultrafine fibers with a fineness of 1 denier or less in the individual constituent parts arranged adjacently, and in this case, the fabric using this can have a soft surface touch. It is possible to
By containing a component made of polyamide, it is possible to vary the coefficient of friction on the surface and create fabrics with different tactile sensations to the touch.

Examples will be explained below.

(Example 1) A fiber-forming polyester polymer (7) having a cross section as shown in FIG.
5 denier/20 filament composite yarn ((8 Pi acid components).

Consists of 8 axial components, total number of constituent parts = 16° Thickness of individual constituent parts: 0.2 a denier, hollow ratio: 10
%), twist number 1544~3ys o T/M
The threads were heated and untwisted by changing the tension within a range of 1 to 2, and the bonded surfaces of the threads were partially peeled and split. (Rotation speed ass, ooo
rpm 1 * 0F-5 CH) The obtained different filament composite yarn had adjacent interfaces peeled and split at random finite length points, and was a multifilament yarn having different finenesses.

Also, is it included in the composite yarn with different fibers? )-(to), ■-(N
The proportion of divided fibers consisting of a combination (composite) of l-Q'l, H-(g)-ring (total proportion of the three) is #
! It was as shown in Table 1.

Furthermore, using these yarns, fabrics were created and the texture was evaluated, and the results are shown in Table 1.

17- Table 1 ×... Lack of fullness and poor surface touch O...
Good touch on one surface of the bulge ◎: Very good touch on one surface of the bulge The bulkiness of the thread and the total ratio of the three (Gin) were measured as follows.

Bulkyness of Yarn JI8109017) Measured by method B (punching method) K of the measuring methods for "s, s bulkiness".

Total ratio of the three (Gin) Take a microscopic photograph of the cross section of the composite yarn before peeling and dividing.
From this cross-sectional shape, calculate the cross-sectional area of the fiber portion (~18°).Next, take a microscopic photograph of the cross-section of the composite yarn with different fibers after peeling and splitting, and from this cross-sectional photograph, (g) - (To), [F]-GV-(P), (To)-〇-The total cross-sectional area ω of the dividing line consisting of the combination of rings
). After that, 3 However, in order to improve the measurement accuracy,
The number n of micrographs for cross-sectional area measurement is set to n≧5.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an example of a cross section of the composite yarn used in the present invention in a direction perpendicular to the fiber axis before being separated and divided. FIG. 2 is a perspective view schematically showing an example of the composite yarn of the present invention. FIG. 3 is a cross-sectional view showing an example of the cross-section of a composite gold thread with different fibers according to the present invention. 1...Polyester polymer 2...Polyamide polymer 3...Peeling and division point 19-years old Z diagram

Claims (1)

[Claims] L A composite yarn in which a fiber-forming polyester polymer (P) and a fiber-forming poly7side polymer (N) are alternately arranged adjacent to each other a plurality of times, and the adjacent interface is random and finite. It is peeled and split at long points, and the peeled and split points are distributed along the yarn axis direction, resulting in a multifilament yarn having a steepness different from K, and a part of the multifilament yarn K (P). -(to),Q')-(
Different line Hata composite yarn 2 characterized in that it contains at least one set of split fibers having an adjacent arrangement of Nl-(P), ■-(P)-H. 2. The composite yarn according to claim 1, which is a hollow annular conjugate fiber having a hollow annular cut in a direction orthogonal to the hollow ring, and has [F] and hooks arranged adjacent to each other in the tangential direction of the hollow ring. 3, P) - (to), (g) - Fuichi ■, (to) - [F] -
Claim 1 is a composite yarn according to claim 2, in which a total of five or more divided filaments having a dynamically adjacent arrangement are included in an arbitrary cross section.