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Method for manufacturing tarpaulin

A manufacturing method and canvas technology, which are applied in textiles and papermaking, devices for coating liquid on surfaces, surface pretreatment, etc., can solve the problems of increased management costs, space occupied by creels and labor costs, and reduce labor costs and management costs. The effect of reducing the incidence of unqualified products and reducing costs

Inactive Publication Date: 2008-04-09
QINGDAO GYOHA & TECH PLASTICS
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0008] The invention provides a method for manufacturing waterproof canvas, which can solve the problems in the prior art that the creel takes up a lot of space and the resulting labor costs and management costs increase.

Method used

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  • Method for manufacturing tarpaulin
  • Method for manufacturing tarpaulin
  • Method for manufacturing tarpaulin

Examples

Experimental program
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Embodiment Construction

[0033] See Figure 2,

[0034] Film forming process S1 of high density polyethylene melt forming film;

[0035] By stretching and shrinking the formed film, the tensile strength is increased, and the film winding process S21 is wound on the reel;

[0036] The wire-drawing and fine-cutting process S31 in which the warp film wound on the reel is drawn and finely cut from the reel;

[0037] The weaving process S4 of the HDPE woven by the finely cut warp and weft silk films;

[0038] The coating process S5 of coating low-density polyethylene (LDPE) on the high-density polyethylene (HDPE) film fabric layer woven by weft and warp yarns;

[0039] Dry the low-density polyethylene (LDPE) coated canvas with hot air to complete the post-processing step S6 of weaving.

[0040] In particular, in the film winding process S21, the conventional fine cutting process S2 of slit film is eliminated, and the film is directly wound up on the roll. At this time, since the wound warp yarn film is ...

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Abstract

The invention provides a manufacture method of water-proof sailcloth, which solves the problems of the prior art that manual work cost and management cost are added by large area occupied by creels. The technical proposal of the invention comprises processes that: (1) a film forming process S1; (2) a film of wound roll taking up process S21; (3) a wiredrawing frittering process S31; (4) an HDPE knitting process S4; (5) a coating process S5; and (6) a post handling process S6. The invention brings the existing close-knit process in the knitting process, thereby promoting the space efficiency and solving the limitation problem of materials.

Description

technical field [0001] The present invention relates to the invention of the waterproof canvas manufacture method that weaves high-density polyethylene (HDPE) warp yarn film and weft yarn film, and coats low density polyethylene (LDPE) on the film after weaving. Background technique [0002] Canvas (tarpaulin), also referred to as tarpaulin for short, can be divided into PVC (polyvinyl chloride) canvas and PE (polyethylene) canvas according to the material of the fabric. Among them, the PVC canvas is made of PET coated with PVC on both sides of the film yarn formed by the multi-thread film. PE waterproof canvas is made of high-density polyethylene (HDPE) film coated with low-density polyethylene (LDPE) on both sides. [0003] 1a and 1b are process diagrams and block diagrams schematically showing a conventional waterproof canvas manufacturing process. The film forming process S1 of melting high-density polyethylene molding, the fine cutting process S2 of the finely cut and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N7/00B27J1/02B05D7/02B05D3/02
Inventor 郑道振
Owner QINGDAO GYOHA & TECH PLASTICS
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