JPS59211620A - Preparation of polyester yarn for woven fabric of hard twist yarn - Google Patents

Abstract

PURPOSE:To obtain the titled yarn having high craping properties, by melting and extruding a polymer containing polyethylene terephthalate and polytrimethylene terephthalate in a specific ratio, drawing and heat-treating filaments by plural hot rollers, winding it at high speed. CONSTITUTION:A polyester composition obtained by copolymerizing and/or blending 50-80wt% polyethylene terephthalate (C2T) based on total amount with 50-20wt% polytrimethylene terephthalate (C3T) and/or polytetramethylene terephthalate (C4T) based on total amount is melted and extruded as filaments, cooled, solidified, drawn and heat-treated successively by at least two hot rollers, and wound at <=3,500m/min, to give the desired yarn consisting of multifilaments having fiber properties of <=2.2de single yarn size, <=40% elongation at breaking and <=5% shrinkage percentage in boiling water.

Description

[Detailed description of the invention]

The present invention is directed to a method for producing polyester yarn, more specifically polynisdel yarn for highly twisted textiles having a high degree of grain finishing. (Prior art) Conventionally, when preparing polyester fibers, in order to facilitate the handling of foam in the weaving process or the 70) striped process, raw yarn iC1 has been applied with a thread and is highly twisted. The strips are fixed at high temperatures (usually by heating with steam). However, such sizing is a step in the production of highly twisted textiles. It brings elegance, and it is not desirable as it may cause spots to appear on the product. In addition, the temporary twisting and fixing treatment at a high place heats and deforms the polyester fiber structure, and as a result, the degree of grain development decreases. t, A-to change one thing is 1
I paid with Miyabi. In particular, when storing polynyster high-twist yarn in a water jet loom with high vermilion properties,
Compared to A weaving on a general right-handed loom, it is necessary to fix the twist of Takasho even more, and therefore the twist is fixed by θ) (-11 temperature, because it becomes ν; II <#? ia The heat (shape becomes remarkable, and the performance of one/bottom of the device is almost IIJ/, c. (Object of the Invention) The object of the present invention is to , low mountain), even though it is set at 4 ~, it is fixed at 01 by dividing the light of the book.
In addition, the inner layer can be simplified by one inch, and when it is made of textiles, the grain quality is better than that of the conventional polyester. +', 'r'S:', Q
'+: 'l polyester thread 4. -jmeiijcho O
Let's learn how to make a pair of shoes together. (11.'I composition of the invention) According to the present invention, polyethylene terephthalate (C2T) has a total content of -V:; O~80 wt%, n mm trimethylene terephthalate (C5T) or/and polytetramethane terephthalate (C5T) Great t C4T ) is total, i, 10
A polynistil composition obtained by copolymerizing or/pasting and blending with a polymerization of 50 to 2 F+, vt% is melted and discharged as a filament, and after solidification, a small amount of
Stretching heat treated with 1 hard heating roller, 3st+ with arrow
It is characterized by being wound as a multifilament having fiber physical properties such as a single fiber fineness of 2.2 dc or less, a cutting elongation of 40% or less, and a boiling water shrinkage rate of 5% or less at a speed of 1.2 dm/min or less. It's a shame that the polyester j Kyoto yarn for strong desire was manufactured in the first month. Book/) Science of Polyester 7,. The important conditions for the 5th generation ic 'J6 are the above-mentioned C2T and C, T, or C2T and C,
T, or C7T and C, T and C, T, there is a certain L in the point where polyalkylene terephthalate with different carbon = a of the glycol component is combined as a blend or/and eutectic combination. Since alkylene terephthalates have similar chemical properties, the polymers have good compatibility with each other, and for general IC, it is best to mix them at a certain ratio and spin them into yarn. [Shif]・L, but in the present invention C2
q'' requires 4 units that account for 10 to 8θwt% of the total amount. CRT (') If J4k is 50wt% and 1.5%, there will be a power struggle as/hoHk%: There is a certain trend, and on the contrary, P Owt% is set as the target of polymerization (C (・Well, 1 of the present invention). Financial σ)5 also for C, T or/and C4T
Q~20~7%: 1↓ is a must call. These J
) 4 force''-50wt% and grain:, comb-shaped in the nose texture J) 2 riri, the fabric = i < l: Not only is it unfavorable, but also 4.4 hardness 11.1: too! ″ζ becomes. vice versa,
20%Vt%(-4 case 1.Ir+';j,
:;ゐFixity and 戊11　 and shun　σ)　　　　　　　　　The wood-sharpened yarn is the same as the above θ) da1.
7 (C, T or/and C4' or/and C, T are the main components, but its 11il total weight・σ) 5vt Satoru・
The following σ) is the 8th conjunction and the purpose of 1 child is 6 pa, so σ) 1° x 9 molecules, small molecules and 11 axes. u+t? 4 Mustache 7): Even if the oil quality is 7゛ / and / and copolymerized, it is not correct (゛. Or/and polymerization cannot be achieved even if it is carried out gradually during the polymerization process of the polymer, and it is also easy to achieve it by hydrating each component and then blending it (because ester redistribution reaction occurs during the spinning process). can. (Foundation) 1'c, the polyester yarn of the present invention has a breaking elongation of 4
0% or less1. 2-It is essential that the lid water absorption rate is 5% or less. If the cutting elongation exceeds 40% (3;+b), the handling of the yarn in the weaving process and its fφ double process becomes poor. In addition, if the elongation exceeds 40% or the shrinkage rate exceeds 5%, M&
Since the fiber structure is not mechanically optically stable, the hair core is twisted to fixed, and deformation of the 14 structure to warming occurs, resulting in t11 for graining! Most of the redundancy is lost. The above-mentioned polyester yarn can be divided into separate processes L' such as +I+1-mura, melt spinning, winding, stretching, heat treatment, and winding to form a single yarn. However, after spinning and winding φ, at least 2 t';
It is possible to publish a book that aims to make Japan 11: 1: 1 even at the 1st stage. In this case, (the number of rotations is 2 or σ), the additional roller 1
1:J will be held, but the song VC heat set 101-
T-kome σ) Sword 1 heat roller, flat heater,
Adding an auxiliary heating means for stopping the slit heater or a cooling roller F is also a problem. The cargo movement is b. In addition, L+iJ, heat treatment on the side rollers is 1:l
1. Do not do it under force. Water revenue: ≦
Pull down 5゛・j down λ doger, ya, quasi-pa, :face/-ge'
C1' Hisaichi 1 seru toru ari・1''. For this reason,
・ij5 (Shinju-gu,) to lower the power of one section”4
) is also a necessary side, or length type). Or use a stepped roller, but it is too small.For self-engineering, an i that is less than 351 JOp/min is required.
,・It's coming.・The sampling speed is: ＜:room/min・j
5.) 1 go is 11. ≧1 processing face 1 [)" is the original dialect, 2tノ" Jaku,, 1.,, ox;・Te (tunho suke present 1 cow r) L gets worse. 1 Tomoe million, Saetori speed (!
7]' 350 L) Tn/min. Single yarn fineness is 2.
It must be 2d6 or less. Single yarn 1, fineness 2.
If it exceeds 2 de, the stiffness of the highly twisted fabric will become undesirable. When the single yarn () degree is 2.2 de or less (Fii: a strong (1.zeta) product with a nice texture is obtained, especially when the single yarn degree is around 1.Ode to 1.S da (Operations and Effects of the Invention) The polyester yarn produced according to the present invention has both 1.' and Ishiho's grain-reinforcing properties and excellent anti-shock properties. 17 It is OJ's ability to omit or simplify the 4th edition, which was essential in the manufacturing process of tableware.It also prevents the occurrence of grain spots due to fluctuations in the mating process. .Furthermore, the distance of 1η in the water jet loom, which was conventionally extremely L1'1!,2, becomes jjj distance. Changed to ``Se,'', light grained 75
- It's possible to do it. (What is life doing?)
iJ late Takatomo's Shibo'; T, present: ヰ and an excellent statement l
1 constant (I wonder if it is possible to satisfy the contradictory requirements of cows by 1.1?)! It is not clear. However, the present invention can be applied to different polyalkylene wrenches. Reflex crates (very mutual customers) Oki is electric (blend in molecule 1st Ku), Cs T, rj and C4
11 Formation change of the molecular chain V(t, i
The dust has two stable shells, and this;
;l can be reversibly cleared, 11 people, - can, A-, 7,,
If you think about it, (lack of j; 1: the festival is 0 cho 1-) is huge and lb. That is, if it is 1 at room temperature, then 1ii thread or production, i' Mr. ball 4 LL 8 Vrc is the upper 5 k. Elastic shape of C8T and C4T, IS change is molecular autophase f]
Molecules of C2T are suppressed and frozen by <tb. Craftsmanship is different. ■ Ropolymer J) Twisting fixity improves by the amount of slight destabilization of fine 4M structure due to blending or copolymerization. On the other hand, in the texturing process, the highly twisted fabric made of the yarn of the present invention is relaxed in boiling water. C2TV
The elasticity of C, T and C4T is thawed and threaded. 0) As a result, C, T or C, which was mainly generated in the yarn twisting process,
T's expansion distortion causes continuous VC attack, and generates 65's powerful torque. The above are the effects and effects of the present invention. The 10-ester ester yarn of the present invention is stretched by 4 yarns by performing straight drawing following spinning. Therefore, post-processing σ
)Mi7. CI') Zu yarn production side! in? Even if the manufacturing cost is low, it is possible to reduce the manufacturing cost. In addition, the polynisdel yarn in the present invention mainly has the following properties: 'A-roller silences 4. Therefore, there is no fear of dyeing spots caused by heat-treated tassels due to ink slips that sometimes occur during heat treatment with a burner heater, and high crystallinity 'A'''fA 7
% '2'' 4 Le J-# Katekiru.
As an agent, Tiotf O, 05w +, % containing C, T (
1 viscosity [η] 2 [1
, 86 C4T (r, A degree] dried at 20'C for 6 hours, Sakae) was blended in a chip state in an A.

[・After 1 insect,
A straight hole with a diameter of 601 mm was discharged from an Okinozuro spinneret. The feeding and discharging yarn dyeing was carried out using the usual method of cooling, heating to a temperature of 80°C; ■ speed + 000 m/min - 71σ) and separating the rollers around it. Further, the temperature was increased to 190°C, and the heat treatment was performed 12 times through a separate roller with a local pressure of 290 Om/min. 7) After that, the thread was also taken by Wynotar as a 5 de / 60 fil manoshiki filament with a luck of 28427 + 1 / min. The raw yarn was twisted with the number of twists of 525QOT/M using an Italian twisting yarn, and then steam-twisted using a steam-heating vacuum center with >PA 70''C, Ic. The warp is made of root C2T multifilament (50 de / 36 f
8-WJLLW-41 (rotation Q: 3R, 11 rpm) K rotation was performed using the 8-year-old WJLLW-41 (rotation Q: 3R, 11 rpm). The woven fabric f1j was laminated with a weak alkali, and the texture was made using a rotary washer (boil x 20 minutes) tr4. X: Indicates the weavability, crimpability and cocoon'$A texture of a highly twisted fabric of 1 or more. --:--1-
---1-1-1----11--1-1--
゛Yellow mirror quality ××Mu1 cannot be woven
For some reason, Koniri) He split, 哉-L6 possible 0 A good arrow yellow Shiho-ranked ○ Good ◎ Good △ Slightly older x
Defective, 1! The 14th C, T l of Ky161.2 is 00%, or even if C and T are twisted, the twisting set effect is insufficient. Genben and IQ
j, ・, λ cases are bad (many burrs are mixed in. On the other hand, in the case of /l/l 5, there are too many C and T, so the texture is very good, but the fabric feels slimy),
Undesirable. Also, A6 is for 100% C4T,
The untwisting torque after the untwisting is set is extremely large, making weaving virtually impossible. In contrast to these comparative examples, /63 and 4 of the present invention were satisfactory in terms of weavability, crimpability, and texture of the fabric. EXAMPLE C, T and C, T of Example 1 were mixed at a ratio of 70% to 30%, and spinning and direct stretching were carried out using the same apparatus as in the actual foil example]. However, the circumferential speed and temperature of heating rollers 1 and 2 (!
KK history. For these wound yarns, X slack i;+
In the same way as No. 11, strong twist is applied.
After that, I performed a tuning. Second, the elongation of the above-mentioned wound yarn and the weavability and texture of the 9-strong twist yarn were compared. As can be seen from Table 2, in the case of /I61 and /162, the stretching ratio is high, so the boiling water absorption rate does not fall below 5%. In these actual bmfjl1w, 2! ζ age is good, but mbovu is also lacking. On the other hand, in A69, the peripheral speed of the heating roller 2 is high and σ) during heat treatment 1■ is cancerous, so the heat cent' The fruit of J is insufficient, and the fluoridated water yield/15 rate is 5.
Get % or 2. In these actual examples, there is also a yakerinpo tachi'(-1 palpitation)''-unyearly.Also, the elongation rate of the demand 10θ) is 1.0, and the elongation is 40. %4-Dawn.This σ) is a warning, 1st time or sobi) 1st l1iii, if the thread is washed away during the process.
'mr It's easy to thread, and it's thin. In addition to the extremely poor grain quality, the grain is also unsatisfactory. In contrast to the comparative examples above, 4 to A68 were produced according to the present invention, and both the texture and texture were satisfactory.

Claims (1)

[Claims] Polyethylene terephthalate (C, T) completely crushed 50
~80 wt%lF litrimethylene terephthalate)rc
, T) or a polyester composition obtained by copolymerizing and/or bundling 7-6 and iN literate (C, T) at a ratio of 20 wt% to the nearest 50% as a filament Raku) 1 After discharging, cooling and solidifying, at least 2il11. lσ) Stretching heat treated by heating p-ra, then at t1 at a rate of 35*om/min or less, the single fiber fineness is 2.2 de or less, the cutting elongation is 4
A method for making single-twist polyester yarn, which is characterized in that it is wound as a multifilament having fiber physical properties of 0% or less and a seawater shrinkage rate of 5% or less.