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Braided bag and its production technology and device

A technology for woven bags and raw materials, applied in the field of plastic woven bags, can solve the problems of easy brittle cracking, aging, and low product cost, and achieve the effects of not easy brittle cracking and good weather resistance.

Inactive Publication Date: 2007-07-18
周世均
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a woven bag produced by using waste PET products instead of PP raw materials and its production process and device. low cost

Method used

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  • Braided bag and its production technology and device
  • Braided bag and its production technology and device

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Referring to Fig. 2: The processing device of the woven bag of the present invention comprises a cleaning tank 1, a shearing machine 2, a pulverizer 3, a feeding machine 4, a dehumidifying dryer 5, an extruder 6, a cooling water tank 7, and a substrate arranged in sequence Tractor 8, slitter 9, stretch heater 10, stretch tractor 11, sizing heater 12, tension tractor 13, cooler 14, winder 15, loom 16, sewing machine 17. Wherein, also can not set feeding machine 4, by manual feeding.

[0031] The above-mentioned processing device is improved on the basis of the existing PP woven bag production device, and a cleaning tank 1, a shearing machine 2, a pulverizer 3 and a dehumidifying dryer 5 are added upstream of the feeding machine 4. Wherein the dehumidifying dryer 5 can also be located between the feeder 4 and the extruder 6, the stretching heater 10 and the setti...

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Abstract

The present invention relates to a braided bag produced by using waste and old PET (polyethylene glycol terephthalate) products as raw material, its production process and equipment. Its production process includes the following steps: (1) cleaning waste and old polyethylene glycol terephthalate product, pulverizing and drying; (2), extruding the pulverized raw material into base sheet, cooling said base sheet by using water; (3), cutting said base sheet into band material; (4), heating said band material and wire-drawing; (5), heating the wire, tensioning and setting, cooling to normal temperature; (6), using said wire to weave fabric; and (7), cutting and making bag.

Description

technical field [0001] The invention relates to a plastic woven bag, in particular to a PET material woven bag and its manufacturing process and device. Background technique [0002] In industry and daily life, plastic woven bags are widely used in various commodity packaging, with a large quantity and a wide range. However, the traditional plastic woven bags are made of PP (polypropylene), and its disadvantages are: 1. The woven bag has poor strength and is not suitable for large packaging; 2. Poor low temperature resistance, easy to be brittle, easy to age, and not suitable for high cold Product packaging for regional use and long storage periods. PET (polyethylene terephthalate) has better strength, low temperature resistance, and aging resistance than PP, but its cost is higher than that of PP products, so it has never been used as a woven bag. High commodity packaging, such as the packaging of mineral water, beer and other beverages, these packaging materials are for ...

Claims

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Application Information

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IPC IPC(8): B65D30/02B29B17/04B29B13/06B29C47/12B29C47/88B29C47/92B29K67/00B27J1/02D01D5/12D01F6/62B29C48/30B29C48/92
CPCB29C47/92Y02W30/62
Inventor 周世均
Owner 周世均
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