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Polyester film heddle

A polyester film and heald technology, applied in the field of plastic healds, can solve the problems of heavy weight, affect the performance of finished products, low stiffness, etc., and achieve the effects of light weight, easy recycling and good comprehensive mechanical properties

Inactive Publication Date: 2019-05-31
CHANGZHOU BAIJIA NIANDAI FILM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of textile technology, healds are often used, usually stainless steel healds, which have the advantages of smooth surface and wear resistance, but there are also many disadvantages, such as large weight, disadvantages of machine loss and headlights, plastic healds with stainless steel body Heddles have the disadvantages of light weight, not easy to rust and less loss to the machine
[0003] The existing plastic healds are affected by the cooling system of the equipment. The quality of the polyester film used for the healds on the market is not stable, and burrs and cracks are prone to occur during stamping. Since the crystallinity of PET affects the performance of the finished product, if the crystallinity is too high, it will easily Burrs and cracks, if the crystallinity is too low, the stiffness is not enough, and it has the disadvantages of wear resistance, hardness and use efficiency that cannot meet the production process.

Method used

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  • Polyester film heddle

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Polyester film heddle 100 comprises coextruded two surface layers 10 and the core layer 20 between two surface layers 10, and the component of described surface layer 10 comprises: PETG, 189.7kg; Anti-blocking masterbatch, 32.5kg; Color masterbatch , 2.8kg; The components of the core layer 20 include: semi-dull polyester chips, 2115kg; color masterbatch, 120kg; softening agent, 15kg; the color masterbatch in the surface layer 10 and the core layer 20 Comprising polyester chips and pigments, the semi-dull polyester chips of the core layer 20 contain titanium dioxide.

[0042] The surface layer 10 and the core layer 20 form a composite slab, and the composite slab is cast, biaxially stretched, heat-set and rolled to obtain the polyester film with a thickness of 350 μm. After testing, the dynamic friction The coefficient is 0.22.

Embodiment 2

[0044]Polyester film heddle 100 comprises coextruded two surface layers 10 and the core layer 20 between two surface layers 10, and the component of described surface layer 10 comprises: PETG, 180.1kg; Anti-blocking masterbatch, 20.2kg; Color masterbatch , 1.7kg; PTT fiber, 1.4kg; the components of the core layer 20 include: semi-dull polyester chips, 1910kg; color masterbatch, 135kg; softening agent, 13kg; modified PET elastic agent, 41.2kg; The softening agent is polypropylene, the color masterbatch in the surface layer 10 and the core layer 20 includes polyester chips and pigments, and the semi-dull polyester chips in the core layer 20 contain titanium dioxide.

[0045] The surface layer 10 and the core layer 20 form a composite slab, and the composite slab is cast, biaxially stretched, heat-set and rolled to obtain the polyester film with a thickness of 400 μm. After testing, the dynamic friction The coefficient is 0.29.

[0046] All in all, the polyester film heald 100 a...

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Abstract

The invention discloses polyester film heddle. The polyester film heddle includes two co-extruded surface layers and a core layer between the two surface layers. The surface layers include 170.0-500 kg of PETG, 15.0-40.5 kg of anti-adhesion masterbatch, and 1.5-3.0 kg of color masterbatch; the core layer includes 1810-2350 kg of semi-dull polyester chips, 110 kg-145 kg of color masterbatch and 10-100 kg of a softener. The color masterbatch in the surface layers and the color masterbatch in the core layer include polyester chips and pigment, and the semi-dull polyester chip in the core layer contains titanium dioxide. The polyester film heddle has the advantages of high wear resistance and high mechanical strength.

Description

technical field [0001] The invention relates to the technical field of plastic heddles, in particular to a polyester film heddle. Background technique [0002] In the field of textile technology, healds are often used, usually stainless steel healds, which have the advantages of smooth surface and wear resistance, but there are also many disadvantages, such as large weight, disadvantages of machine loss and headlights, plastic healds with stainless steel body The heald has the disadvantages of light weight, not easy to rust, and less loss to the machine. [0003] The existing plastic healds are affected by the cooling system of the equipment. The quality of the polyester film used for the healds on the market is not stable, and burrs and cracks are prone to occur during stamping. Since the crystallinity of PET affects the performance of the finished product, if the crystallinity is too high, it will easily Burrs and cracks, if the crystallinity is too low, the stiffness is ...

Claims

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Application Information

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IPC IPC(8): D03C9/02D01F8/14D01F1/10
Inventor 茹正伟宋文君戴抗帝符雄杰
Owner CHANGZHOU BAIJIA NIANDAI FILM TECH CO LTD
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