JPS58136850A - Hard twisted yarn-like special bulky processed yarn - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention is characterized by the delicate crispness, drapability, and
In addition to having strong twisting effects such as volume and elastic texture, the resulting woven or knitted fabric does not have the appearance of thin defects, has a rich sense of volume and softness overall, and has uneven drapability. Contains a special bulky η Loe yarn count with a strong twist tone that can give a high-class product feel without giving any appearance.

Conventionally, in the false twisting process, a technique for loosening the unsteady false twist lJ opening 1 and alternately forming actual twists with different twist directions in the longitudinal direction of the yarn is disclosed in Japanese Patent Publication No. 39-12891. ,
Special Publication No. 40-14615.

Japanese Patent Publication No. 49-8414, Japanese Patent Publication No. 49-10835
No. 3, JP-A-51-49949.

It has been proposed in Japanese Patent Application Laid-Open No. 53-61745, etc.
In this way, the processed yarn obtained by simply subjecting thermoplastic synthetic fiber yarn to unsteady false twisting has a strong twisting effect, but the untwisted portion that has twist in the direction of false twisting heating has a false twisting effect. Unlike the untwisted part, which has a twist in the untwisting direction, the yarn does not have bulk, and the initial elastic modulus of the untwisted part is higher than that of the untwisted part. The woven or knitted fabric obtained from the above may have a sink mark-like defect-like appearance when the untwisted portion is present alone, or a defect-like appearance where the untwisted portion is locally lacking in thickness when the untwisted portion is present in a concentrated manner. In addition to having uneven appearance, due to the difference in the initial elastic modulus, only specific parts of the fabric tend to bend, resulting in lack of uniformity in drape properties, and a disadvantage that a printed product feel cannot be obtained.

The purpose of the present invention is to solve the above-mentioned drawbacks of the proposed yarn, to greatly reduce the uneven thickness and initial elastic modulus of the yarn, and to improve the appearance of the fabric obtained from the yarn. The purpose of the present invention is to provide a highly twisted yarn-like specially bulky processed yarn that has enhanced uniformity and imparts uniform drape properties, giving a high-quality product feel.

The purpose of this is to prevent the unsteady false twisting process that occurs in thermoplastic synthetic fiber yarns that have been subjected to bulk processing that involves heat processing, and to leave real twists in different directions in the longitudinal direction of the yarn. This is achieved by creating a highly twisted yarn-like special bulky textured yarn in which the bulkiness and breaking elastic modulus of the actual twist remaining portions in different directions are substantially equal to fr>.

The present invention will be explained in more detail below.

First, the processed yarn of the present invention is obtained by applying an unsteady false twisting process to a yarn that has been subjected to a bulking process accompanied by heat treatment, and then subjecting the yarn to actual twisting in different directions in the longitudinal direction of the yarn. The bulkiness of the untwisted portion of the remaining yarn is substantially the same as that of the untwisted portion. Bulking processing accompanied by heat processing here refers to bulking processing accompanied by heating, and any method may be used as long as the specialized properties of the yarn are not lost during unsteady false twisting processing accompanied by subsequent heat processing. These include the 'false twist crimp method, stretch false twist method, shaping crimp method, and abrasion method. Note that this bulking process accompanied by heat processing may be performed continuously with the subsequent unsteady false twisting process, or may be performed discontinuously.

In addition, thermoplastic synthetic fiber yarn that has been subjected to bulking processing accompanied by thermal processing is defined as the apparent outer diameter of the yarn under a near-untensioned load before the bulking process, and the apparent outer diameter of the yarn after the bulking process. Apparent outer diameter ratio is at least 1.1 or more preferably 1.2
The heat j:lT ill synthetic fiber yarn in the above state. Furthermore, unsteady false-twisting process accompanied by thermal processing refers to active unsteady false-twisting process accompanied by heating. Refers to a method using yarn path displacement in the twisting zone, etc.
Processes such as false twisting and ununtwisting that are simply performed continuously are not included in this range. The processed yarn of the present invention is produced by the above-mentioned unsteady false twisting accompanied by thermal processing, so that real twists with different twist directions alternate in the longitudinal direction of the yarn at arbitrary lengths. The bulkiness of the untwisted portion, which is twisted in the twisting direction, and the bulkiness of the untwisted portion, which is twisted in the false-twisting/untwisting direction, are substantially the same. Here, the term "bulkness is substantially ≦ the same" means that the difference in the apparent outer diameter of the yarn under a load close to point tension is 10% with respect to either the untwisted part or the untwisted part, whichever is thicker. The following is preferred! , i is 5% or less. As described above, the processed yarn of the present invention has a strong twisting effect due to the presence of natural twists in different directions in the longitudinal direction of the yarn. Since they are substantially the same, the fabric obtained will not have a sink-like appearance or a thin appearance, and will have an overall soft feel. Figure 1 shows the invention of this invention.
Aspect 1 of Chapter 1 is a brief explanation, and in the 21st and 4th sections of the conventional alternately twisted yarn without 2R, the untwisted part [A)' is untwisted? fc
) 'It lacks bulkiness compared to ≦ This book -#
, :・il dD work upper yarn untwisted part (Al and untwisted part 1c
There is almost no stiffness in the roughness of I, and the non-twisted or nearly non-twisted molecules B1 and fD) are also bulky, showing a bulky state along the longitudinal direction of the yarn I. There is.

Next, the i゛1M unknown r+u dupe is its untwisted 1B
and the initial elastic modulus of the untwisted part are substantially equal.

In this case, the initial elastic modulus is substantially equal when the difference in initial elastic modulus measured by the normal measurement method described below is preferably 25 width or less based on whichever is higher of the untwisted part or the slightly untwisted part. It is said that it is below 15% 1.1. A plastic synthetic fiber that does not undergo bulk processing accompanied by thermal processing, and unsteady false twisting/In' with thermal processing in the twisted yarn.

In conventional alternately twisted yarns, the untwisted yarns (A
)' is higher than that of iGikaetsuya (C)', but the present invention + JLI Komi is Ichibata-cho, which has been subjected to 1'-high processing with heat processing in advance.・・The supply system is θ Offshore 11J2 yarn, which has been thermally stabilized before undergoing unsteady false twisting and JLl heat treatment with heat treatment. The treated yarn is a processed yarn that has been heat-treated relatively uniformly in the longitudinal direction, and the +JJ elasticity modulus of the water-splitting section and the twisting section are substantially equal. The woven or knitted fabric obtained from the rJD yarn needle yarn of the present invention has a high quality, wood-like feel without having uneven drapability such as bending in specific areas.

, @3 Figure shows the untwisted processed yarn of the present invention +A) and 1 untwisted +! This is a graph showing the relationship between breaking stress and elongation of SFCI, and Figure 4 is a graph showing the relationship between breaking stress and elongation of conventional -〈unbroken combustion temperature (A)' of intertwisted yarn and breaking stress of continuous burning 'ffl (C)'. It is a graph showing the relationship between and elongation. As is clear from both figures, in the conventional alternately twisted yarn, the initial elastic modulus of the untwisted portion (A)' is significantly higher than that of the continuously twisted yarn, 561C)'; In the thread l, the untwisted part +
It can be seen that the initial elastic modulus of A) is approximately equal to that of the threaded part + C).

Next, a method for producing the special bulky one-captured wool yarn of the present invention with L distribution will be explained.

First, we applied unsteady false twisting IJL'l to the unsteady twisted yarn (for thermoplastic fitting that does not require bulking processing accompanied by thermal processing) to create a conventional method with a twist number distribution in the longitudinal direction of the yarn. As a method for producing alternately twisted yarn, for example, false twisting m1 using fluid intermittent twisting is used.
To explain the case, heat i = i plasticity → Ebisu fiber yarn is passed through the false twisting process used in the compressed fluid twisting nozzle C (hereinafter referred to as nozzle)', and the fluid is intermittently supplied to the nozzle L. By repeatedly turning and stopping the yarn, the yarn
This false twist transient effect y t +lI is used to impart alternate twist. In this case, when the fluid is stopped, the untwisted part (A)' is untwisted, and when the fluid is delivered, the untwisted part (C)' is twisted, and from the untwisted part (A)' to the untwisted part (C). No twist i between ′ (B)
', and the opening from the electrolytically twisted part (C)' to the untwisted part (A)' forms untwisted re iD+', and these untwisted parts (A)' → untwisted ( B)' → over-twisted part C)' → non-twisted part (D)' becomes a repeated yarn.

Before the thus obtained twisted part (C)' passes through the nozzle,
The nozzle is twisted by the compressed fluid supplied to it,
Heat by heating device 1. After the added combustion passes through the nozzle, it is rapidly subjected to the twisting and untwisting action of the nozzle in the opposite direction, and is untwisted into a river in the opposite direction to the twisting in the heating direction. be done. In this way, the twisting part (C)' is made by twisting the thermoplastic chusha, sashi, and usui yarn, heating it, and then setting it to 1. Because of twisting, each single yarn is twisted and fixed, and due to the generation of return torque, it is not in the closest packed state and becomes bulkier than the supplied raw yarn.

On the other hand, the unresolved (heated part (A)' is through the nozzle, and the compressed fluid that was previously supplied to the four nozzles twisted the twist 1 last night, and the twist thermally identified by the heating device was twisted once after passing through the nozzle.)
In this case, since the supply of compressed fluid to the nozzle is stopped, the material is not untwisted or twisted after passing the nozzle, and the material is twisted before passing through the nozzle and remains sufficiently heated. As a result, the supplied raw yarn becomes a highly bundled yarn with no bulkiness. Further untwisted r”/6 IA
I' is the untwisted part (
A)' initial bullet l! The ratio shows a false value compared to that of the threaded part (C)'.

In this way, this conventional alternately twisted yarn has no 7° commercialization with respect to the supplied raw yarn, and has a high initial
The untwisted part (C) has a high initial elastic modulus with a ratio of E to the untwisted part (A)', which is bulky with respect to the supplied raw yarn and has a low initial elastic modulus at a ratio of E to the untwisted part (A)'. )' are mixed together.

On the other hand, the special high-bulk needle yarn of the present invention uses a thermoplastic synthetic fiber yarn that has been subjected to bulk processing that involves thermal processing such as false twisting and crimp processing as a feed raw yarn, and this is processed by using a nozzle, for example. In the steady false twist JJO process, the supplied 10000 yarns have been made bulky in advance, so in untwisted, 5(S(A)),
Before being twisted by the nozzle, the balance of the valley single yarns that are twisted by the nozzle is disturbed, and even after twisting, the yarn is not in a close-packed state and its bulkiness is maintained.

On the other hand, in the threading and twisting section jC), as mentioned above, since the supplied yarn is a thermoplastic yarn, the threading and twisting section (C) Add bulk to yarn.

Furthermore, since the uninvented special hole 1% knitting yarn is supplied with F4 plastic synthetic fiber yarn which has been subjected to bulk processing with heat processing such as false twisting and crimping, it can be processed by fluid intermittent twisting It has been thermally stabilized even before applying non-electromagnetic temporary processing that involves heat processing such as false twisting, and even if unsteady false twisting processing that involves heat processing is applied, the above-mentioned The initial elastic modulus of the untwisted part + A) of the conventional alternately twisted yarn is higher than that of the untwisted part (C) of the conventional alternately twisted yarn.
:・4) J M of the untwisted part (A) without being twisted in one pair
The elastic modulus and threaded part (the threaded part (C1) are substantially equal, resulting in a thread treated yarn that is uniform in the longitudinal direction of the yarn.
Since the raw yarn to be supplied is a yarn that has been subjected to a high-strength process that involves thermal processing, its initial elastic modulus is lower than that of the yarn that has not been subjected to the curling process, and is superior to the IJLI yarn of the present invention. The woven camphor fabric that is threaded has high drapability.

The above-mentioned thermoplastic synthetic fiber yarn of the present invention IJO needle thread is a synthetic fiber yarn obtained from polymers such as polyester and polyamide, copolymers thereof, blend polymers, etc., and is subjected to the usual spinning → drawing process. , a drawn yarn obtained from this process, a semi-j continuous drawn yarn, or an unsharpened drawn yarn obtained by high-speed spinning.

As mentioned above, the special lacquered J-loe yarn of the present invention is a thermoplastic synthetic fiber yarn that has been subjected to a bulky U-loe that is heat-processed, and a yarn that is made by applying an irregularly false-twisted lJ-loe that is heat-processed. Because it is a yarn with different actual twists formed between the protons of the yarn, it has a delicate crisp feel similar to that of a twisted yarn, drapability, and skin twist effects such as W[g] and elastic texture. At the same time, the void height of the untwisted part is practically the same as the bulk resistance of the untwisted part, and therefore, the special layer height of the present invention is 7 Jl. It does not exhibit a shabby appearance lacking a sense of thickness, and has an overall soft feel.
Since the supplied 1000 yarn before relaxing the unsteady false twisting process with the heat JJII process described in mQ is a yarn that has been subjected to the bulky IJD process with heat processing, it is thermally stabilized and the initial It is a yarn with a decrease in elastic modulus of 1-1, and the first 11 JI of the untwisted part.
The jolt property and the bright curvature of the overcurvature twisted part are substantially equal, so the woven tsumugi fabric has high drapability and uniformity, and has a high-quality feel.

Hereinafter, the present invention will be explained in detail using examples.

Example Polyester drawn yarn 125 d/6 U f (Initial bullet modulus 1 υU?/a) e, L - Ordinary thermal gear forming type 1
By using 10 construction methods, 4 high IR
Using a nozzle with 1 air of compression, the obtained yarn was passed through a Loheer with 24 intermittent vortex twists and several twists, unsteady false twisting under the conditions shown in Table 2. Invented Samurai Jushu Mengaka IJD Dupion.

Table 1 & 2 The obtained processed yarn has an untwisted part of 0.8 m in the longitudinal direction of the yarn.
The front and back twisted parts are tsm @ rear length, and both K or K are written alternately, and the non-twisted part when changing the direction of both twists is tsm@.
l, also 0. The humidity was negligible at less than IJ 2 m.

The remaining actual twist of the 1101 yarn under a load of 2''i'/d is the upper twist portion 1'25L) T/
M, had a high density of 118 LI T/mu 4, and was a strong yarn-like thread. The actual number of twists remaining in the yarn is determined by the total length of each part [stiffness 5 α
Twist at intervals, and the maximum number of twists in the horizontal direction at the 6th point is 1mj.
This is converted into the number of twists.

In addition, the outer diameter of the untwisted part, support, and unraveled part of the processed yarn at 2°C under the bag was determined by a microscope.
C. However, the outer diameter of the untwisted portion was 2 x 1.6μ, and the outer diameter of the untwisted portion was 197.6μ, so there was almost no difference in bulk between the two. To measure the outer diameter of both twisted parts,
``I'i/d! 7) Collect the sample on a microscopic measurement preparation under load, and directly read the maximum value of the outer diameter in the front and rear 11 sections at the center of each sample. The initial elastic modulus of the untwisted part and the untwisted part of the bobbin thread described in line 0/10 was measured, and the initial cutting elastic modulus of the untwisted part was 15, 1 f/
d.1. Sho lIl/l! The cut-off elasticity modulus of flu is 13.3
There was no noticeable difference between fF7d and 111 users, and
In all cases, the width was reduced by 1 to 1 compared to the drawn yarn before the addition. The initial elastic modulus was measured five times each at trial slope length 5, accommodation, and tensile relationship 1 (J 0% 2-). The value of 1.6 kg was calculated by converting it into l per denier.

In history, a cloth was made by the Moji Shikumi group using 4 diameters, 75 threads per inch, and 68 threads in the weft. When the appearance of twisting and twisting is sharp, there are IJs caused by conventional alternately twisted yarns, sink-like external inkstone spots caused by lack of bulk in the untwisted part, and thinning-like defect spots. Asymmetric drape properties due to high elastic modulus were not observed.

Comparative Example 125d/6°f polyester drawn yarn same as Example 1
Using this, we applied the same unsteady temporary/natural processing method as in the actual work to create a highly twisted textured yarn by performing one-hole/island beating.

The processed yarn of this comparison is the same as the example, and the actual twisted ridges remaining in the yarn, the untwisted part pattern, the untwisted part 6), the outer diameter, and the initial elastic modulus were measured using the serial number. , Unsolved! However, the actual number of twists in the part is 1270"/M, and that in the continuous part is 8υLI.
T/M was 1°4 dense, but the outer diameter of the untwisted part was 202.8 μ, and the outer diameter of the untwisted part was 162
．． They are all small at 2 μ, and the initial cutting elastic modulus is: ~2 late 1
Δ part is 16.6? /d, while the untwisted part is 293'? /d and 烙2Byo1! The value was

Therefore, compare L.) Same as the example using the bobbin thread, p
When I strained the fabric, there was a sink mark-like defect.

1E0 with thin walls, irregular imperfections, and uneven drape

[Brief explanation of drawings]

Figure 1 is a schematic side view of the special bulky processed yarn of the present invention, Figure 2
The figure is a schematic side view of a conventional highly tuned bobbin yarn, and Figure 3 is a graph showing the relationship between the stress during the Gino period and the stretch of the untwisted Japanese yarn and J11 twist part of the special bulky yarn of the present invention. Figure 44 shows the conventional strong twisting yarn [untwisted part of the yarn and it r=, @ m r
It is a graph showing the relationship between the 91st term stress of m and Nakahen 7. fA] ...Special to this invention; 1% envy! 1 ■ Untwisted part of yarn. IBI......Special bulky j+D yarn bobbin thread I of the present invention Fermentation and untwisting part IA)'......Ununtwisted conventional highly twisted textured yarn Department. (B)'・・・・・・・・・Conventional strong twist jJD I
Thread Interpretation 21i Country 1 / Terakide Shonin Unitika Co., Ltd. Hana 75 ￥Z for rod Hanakaton

Claims (1)

[Claims] 1. A thermoplastic synthetic fiber yarn that has been subjected to a bulking process that involves thermal beating is subjected to an unsteady false twisting process that involves thermal processing, so that actual twists in the longitudinal direction of the yarn ≦ different directions remain. The bulkiness of the untwisted portion having a twist in the false-twisting heating direction and the bulkiness of the untwisted portion having a twist in the false-twisting and untwisting direction are substantially the same, and , a highly twisted yarn-like special bulky processed yarn characterized in that the initial elastic modulus of the untwisted portion and the untwisted portion are substantially equal.