Production process of composite Dacron filament with special shape, different fiber and different shrinkage
A composite filament and different shrinkage technology, which is applied in the direction of artificial filament physical therapy, single-component polyester artificial filament, filament/thread forming, etc., can solve the problems of increased manufacturing cost and complicated spinning process, and achieve the goal of manufacturing The effect of simple process and high added value
Inactive Publication Date: 2003-03-19
SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Usually, different multiples of drafting are carried out on the drafting equipment on the drafting equipment, so that the whole spinning process is more complicated, and the use of two polyester raw materials requires two sets of yarns for each The spinning position provides a polyester melt system, which undoubtedly increases the manufacturing cost of the product
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1～12
[0013] Using a screw extruder, the polyester melt is spun through a spinneret assembly with special-shaped spinneret holes and circular spinneret holes of two sizes to obtain tows containing three corresponding as-spun filaments. The tows pass through The heat pipe is used for drawing, and then through the network and winding to obtain the special-shaped and different-shrinkage tri-isopolyester composite filament product.
[0014] Spinneret specifications:
[0015] 0.18×0.54×24f+0.25×0.72×18f+Alien×0.5×24f
[0016] (Special-shaped, fine-denier circular and coarse-denier circular spinneret holes are respectively located on concentric circles arranged alternately in sequence.)
[0017] Other related spinning process conditions adopted in each embodiment are shown in Table 1, and the product indexes are shown in Table 2.
[0018]
Example
Shaped hole
Mixed fiber ratio
heat pipe length
(mm)
heat pipe temperature
...
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Abstract
In the production process of composite Dacron filament with different titer, special shape and different shrinkage, polyester melt is spun via a jetting board assembly with specially shaped jetting holes as well as large and small circular jetting holes to produce three corresponding kinds of tow and the three kinds of tow are produced into the composite Dacron filament product with different titer, special shape and different shrinkage through drafting in the heat pipes, networking and winding. The coarse and fine filaments have a heteromorphism ratio of 2.0-4.0, the specially shaped filament has a heteromorphism of y=20-55%, the heat pipe has temperature controlled in 110-160 deg.c and length of 1000-2000 mm, and the spinning winding speed is 3500-5300 m / min. The present invention features the simple technological process.
Description
technical field [0001] The invention relates to a method for manufacturing polyester filaments, in particular to a method for manufacturing polyester composite filaments with different shapes and different shrinkages. Background technique [0002] Different-shaped and different-shrinkage three-isolated polyester composite filament is a kind of composite polyester filament with special-shaped cross-section and two different single-filament fineness circular cross-sections and three kinds of polyester filaments with different hot water shrinkage rates, usually round yarn The coarse denier yarn in it is high shrinkage and the other two are low shrinkage. When this kind of polyester composite filament is heat-treated in the subsequent dyeing and finishing process, because the thick denier round yarn produces more shrinkage than the special-shaped yarn and the fine-denier round yarn, the special-shaped yarn and the fine-denier round yarn produce fine and natural curls Floating o...
Claims
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IPC IPC(8): D01D5/08D01D10/00D01F6/62D02G1/18
Inventor 徐晓辰陈宏军黄斌斌顾晓红严异麟
Owner SINOPEC SHANGHAI PETROCHEMICAL CO LTD