Continuous production process of polyethylene (PE) breathable film

A production process and technology of breathable film, applied in the field of continuous PE breathable film production process, can solve the problems of difficult quality assurance, increased cost, and high packaging costs, and achieve the effect of improving performance and quality, reducing capital occupation, and reducing warehouse occupation.

Active Publication Date: 2011-10-05
吴国逵
View PDF7 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Afterwards, the air-permeable particles are transported to the PE air-permeable film production line of another factory, and then heated from room temperature to 240-250°C to be extruded into a film, and cooled to room temperature to form a film. In this way, the raw material is reheated and the energy consumption is high. multiply
In addition, due to the complexity of the granulation process, the energy consumption will also increase
[0012] (2) High packaging cost
[0013] (3) Affect the quality
Because the raw material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Continuous production process of polyethylene (PE) breathable film
  • Continuous production process of polyethylene (PE) breathable film
  • Continuous production process of polyethylene (PE) breathable film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention is described in further detail by the following examples.

[0032] refer to image 3 , Figure 4 As shown, the production process of a continuous PE breathable membrane is as follows:

[0033](1) Put the conventional ratio of 44.5-54.5% polyethylene by weight, 45-55% calcium carbonate, and 0.5% additives (including lubricants and antioxidants) into the mixer Mix evenly in 1 mile, then add in the kneader 5 through the hopper 2, the kneader 5 is driven by the frequency conversion motor 3 and the gear box 4, and the kneader 5 is provided with feeding section 5-1, kneading plastic Chemical section 5-2, emptying section 5-3. The mixed material is gradually heated to about 130°C while advancing through the feeding section 5-1 of the mixer 5, and then advanced to the mixing and plasticizing section 5-2, and the temperature of the material is gradually heated from 140°C to about 180°C , because this section has a strong kneading, shearing and kneading ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a continuous production process of a polyethylene (PE) breathable film. By the continuous production process, granulation and dehumidification flows in the conventional production process of the PE breathable film are eliminated. The production of the PE breathable film from a raw material to a finished product is finished on a production line, so the production process provided by the invention has the advantages of energy conservation, high efficiency, low cost and high quality. The production process of the PE breathable film comprises the following steps of: mixingmaterials; mixing and plastifying to form a melt; pressurizing and stabilizing the melt; filtering out impurities; extruding to form a film; cooling to form the film; pre-heating a base film; stretching the base film; heating, cooling and setting; detecting thickness; and rolling to obtain the PE breathable film. An extruder which only has a feeding section and a metering section and a melt pressure-stabilizing device are arranged between an evacuation section of a mixing roll and a mould head on the production line, so the continuous production of the PE breathable film is realized.

Description

technical field [0001] The invention relates to the technical field of breathable film production technology, in particular to a continuous PE breathable film production process. Background technique [0002] The conventional production process of PE (polyethylene) breathable film is to heat and knead polyethylene with a weight percentage of 44.5-54.5%; 45%-55% calcium carbonate; 0.5% additives (lubricant and antioxidant) through a mixer. Calcium carbonate is evenly dispersed in polyethylene, then formed into air-permeable particles, and then sent to the extruder, heated and plasticized, extruded through a T-shaped die to form a film, and then heated to an appropriate temperature and then properly stretched and shaping, and then rolled up to make a PE breathable film. In this process, since calcium carbonate is evenly distributed in PE, when it is formed into a film and then heated and stretched, there is a gap between the calcium carbonate particles and the PE. Voids, thes...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B29D7/01B23K23/00
Inventor 吴国逵
Owner 吴国逵
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap