CN101724923A - Full-drawn yarn of super fine polyester and manufacturing process thereof - Google Patents

Abstract

The invention relates to a full-drawn yarn of super fine polyester manufactured by using polyester continuously. The full-drawn yarn of super fine polyester with a specification of 75D/192F is manufactured by a one-step process route of circular blowing, cooling and spinning, and the yarn has good performance. The manufacturing process of the full-drawn yarn of super fine polyester comprises the following steps of: esterifying phthalic acid and glycol by using the refined raw material, preparing the melted polyester by the prepolycondensation and the final polycondensation, and directly spinning the melted polyester. The manufacturing process route comprises melted polyester, conveying the melted polyester, a spinning box, a metering pump, a member, circular blowing cooling, bundling and oiling, a paved path, a first hot roller, an interlacer, a second hot roller and winding. The invention has advantages of reasonable manufacturing processing, good fibre spinnabilitty, smooth weaving, light, flexible quality of the fabric and good style of the fabric, thereby meeting weaving request of fabric and lining of high-grade clothes and improving the grade and the additional value of products.

Description

Superfine terylene fully drawn yarn and production and processing technology thereof

Technical field

The present invention relates to a kind of synthetic fiber and production technology thereof, specifically is a kind of 75D/192F superfine terylene fully drawn yarn and production and processing technology thereof.

Background technology

Terylene is as one of the big main force of three in synthetic fiber fiber, because of its good physics and chemical characteristic are widely used in garment material and other non-garment industry.The terylen product since coming out, also once with its drapability is good, intensity is high, well-pressed, be difficult for becoming and be used as main textile raw material by downstream user and weave all kinds of textiless.Along with economic globalization, the market internationalization, people are also more and more higher to the requirement of clothes, not only to have comfortableness, also will have functionally, lining just develops to light, gentle, functional direction, and composite fibre materials just need improve constantly performance and satisfy requirements of weaving process.Superfine fibre is because its high spreadability, superperformance such as soft, comfortable and easy to wear have become a focus textile raw material of each weaving manufacturing enterprise exploitation grade textiles both at home and abroad, and its use can effectively improve the class and the added value of product.In addition, superfine fibre also can be applicable to such as other fields such as heat-insulating material, filtering material, ion exchange material, imbibition material, biologic applications.The combination in and other technologies field differential by superfine fibre, Application Areas from now on is with increasingly extensive.

Superfine fibre product development difficulty, the product of production is relatively poor aspect physical indexs such as bar evenness, dyeability, and full-rolling rate and AA level rate are lower, influence weaving of product, can not improve the class and the added value of product.At the above difficulty that the exploitation superfine fibre exists, we have developed a kind of high-quality superfine fibre, have excellent physical index, can satisfy the requirements of weaving process of high-grade fabric, have promoted the class and the added value of product.

Summary of the invention

The purpose of this invention is to provide a kind of 75D/192F terylene fully drawn yarn and production and processing technology thereof, make the superfine fibre of production have excellent physical index, can satisfy the requirements of weaving process of high-grade fabric, promoted the class and the added value of product.

Purpose of the present invention is achieved through the following technical solutions:

Superfine terylene fully drawn yarn is the polyester quantity-produced, it is characterized in that specification is 75D/192F, adopts ring blowing cooling spin-drawing one-step technology route to produce excellent product performance.

The production and processing technology of superfine terylene fully drawn yarn, carry out esterification by raw material p-phthalic acid and ethylene glycol, carry out direct fabrics through precondensation and the poly-preparation of final minification polyester fondant again, adopt spin-drawing one-step technology route, it is characterized in that: the viscosity of prepared polyester fondant is 0.650;

Production process route is: polyester fondant → melt Conveying → spinning manifold → measuring pump → assembly → ring blowing cooling → boundling oils → path → first hot-rolling → Network device → second hot-rolling → coiling

Technological parameter is:

293～295 ℃ of spin manifold temperatures, 287～289 ℃ of pipe temperatures

The measuring pump specification adopts 3.5ccm

Component pressure is that 170～190bar, spinnerets specification are PRB-2*96-0.16*0.60, metal sand proportioning 60-80 order: 140～150 μ m/g

Ring blow pressure 750～800pa, 20～23 ℃ of temperature, humidity 80～95%, zone of silence height 75mm, EVO pressure reduction 30～40pa

The valid density of finish is 90%, the rate of oiling is 0.90～0.10%, oily frame height 600～750mm

Winding speed is 4050～4150m/min, the speed of first hot-rolling is that 2350～2400m/min, temperature are 80～84 ℃, the speed of second hot-rolling is that 4050～4150m/min, temperature are 120～124 ℃, Network device pressure between first and second hot-rolling is 3bar, coiling start angle, handoff angle are 5.2 °, initial contact pressure is 175N, and it is good to guarantee that the terylene fully drawn yarn spinning cake is shaped;

The spinning tension of tow is that the tension force between 28～3iCN, first hot-rolling and second hot-rolling is that 45～48CN, winding tension are 10～12CN.

The advantage of production technology of the present invention is: technology is reasonable, and fiber spinnability is good, the physical index excellence, and lousiness little breakage, handover success rate height, the even dyeing rate reaches more than 99%, and full-rolling rate reaches more than 98%; Weave smooth and easyly, fabric texture is light, gentle, and fabric style is good, satisfies the requirements of weaving process of high-grade clothing face, lining material, promotes product specification and added value.

The specific embodiment

Further specify technical scheme of the present invention by specific embodiment:

Use crust horse lattice ring blowing apparatus to produce the terylene fully drawn yarn of 83dtex/192F specification, earlier by p-phthalic acid and ethylene glycol esterification reaction, be that 0.650 polyester fondant carries out direct fabrics through the poly-preparation of precondensation and final minification viscosity again, adopt ring blowing cooling spin-drawing one-step technology technology, pipe temperature is 287 ℃ during melt Conveying, 294 ℃ of spin manifold temperatures, use 3.5ccm specification measuring pump, rotational speed with 11.65rpm, guarantee to produce the fiber number of product, the spinnerets specification is selected PRB-2*96-0.16*0.60 for use, metal sand proportioning 60-80 order: 145 μ m/g, make component pressure reach 185bar, guarantee the normal wire vent of spinnerets, adopt ring blowing mode to cool off, the height of zone of silence is 75mm, and the pressure of ring blowing is 780pa, 22 ℃ of temperature, humidity 95%, EVO pressure reduction 36pa, oil frame height 720mm adopts the oil nozzle mode that oils, and using valid density is 90% finish, the rate of oiling is 1.0%, guarantees the obvolvent performance between the monofilament; Winding speed is 4080m/min, and the speed of first hot-rolling is that 2380m/min, temperature are 83 ℃, and the speed of second hot-rolling is that 4080m/min, temperature are 123 ℃, the 3bar of Network device between first hot-rolling and second hot-rolling; For guaranteeing the spinning cake forming of terylene fully drawn yarn, the coiling start angle is made as 5.2 ° and is being wound up into 130mm, 135mm, 150mm, 140mm, 150mm, 170mm, 210mm, 230mm, winding angle is made as 5.2 ° respectively during 360mm thickness, 5.3 °, 5.5 °, 5.7 °, 5.9 °, 5.7 °, 5.5 °, 5.3 °, the winding angle that full volume switches is made as 5.2 °, initial contact pressure is made as 175N, at 94mm, 135mm, 150mm, 200mm, 250mm, 280mm, 330mm, during 360mm thickness, contact pressure all is made as 175N, automatically switch when completely rolling up, spinning cake is delivered to quality testing check physical index and appearance test, be packaged into the storehouse after qualified.The terylene fully drawn yarn physical property physical index that adopts ring blowing cooling spin-drawing one-step technology technology to produce is good, and concrete physical index sees Table 1, satisfies the high-grade fabric requirement fully, weaves smooth and easyly, and fabric texture is light, gentle, and fabric style is good.

Table 1 physical index

Line density	??dtex	??83
			Fracture strength	??cN/dtex	??3.95
Elongation at break	??％	??36.0

Line density	??dtex	??83
			Bar is done CV	??％	??1.28
Bar is done Hi	??％	??0.53
			Boiling water shrinkage	??％	??7.11
Oil content	??％	??1.0
			Nexus	Individual/rice	??7.0

Claims (2)

1. superfine terylene fully drawn yarn is the polyester quantity-produced, it is characterized in that specification is 75D/192F, adopts ring blowing cooling spin-drawing one-step technology route to produce.

2. the production and processing technology of superfine terylene fully drawn yarn, carry out esterification by raw material p-phthalic acid and ethylene glycol, carry out direct fabrics through precondensation and the poly-preparation of final minification polyester fondant again, adopt spin-drawing one-step technology route, it is characterized in that: the viscosity of prepared polyester fondant is 0.650;

Technological parameter is:

293～295 ℃ of spin manifold temperatures, 287～289 ℃ of pipe temperatures

Component pressure is that 170～190bar, spinnerets specification are PRB-2*96-0.16*0.60, metal sand proportioning 60-80 order: 140～150 μ m/g

Ring blow pressure 750～800pa, 20～23 ℃ of temperature, humidity 80～95%, zone of silence height 75mm, EVO pressure reduction 30～40pa

The valid density of finish is 90%, the rate of oiling is 0.90～0.10%, oily frame height 600～750mm

Winding speed is 4050～4150m/min, the speed of first hot-rolling is that 2350～2400m/min, temperature are 80～84 ℃, the speed of second hot-rolling is that 4050～4150m/min, temperature are 120～124 ℃, and the Network device pressure between first and second hot-rolling is 3bar.