Plastic bag with different heat sealing thread shapes

A plastic bag and heat sealing line technology, applied in the field of plastic bags, can solve problems such as cracking of the sealing part

Inactive Publication Date: 2003-10-15
SHENZHEN JUNHAO PLASTIC
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem that the traditional plastic bag is easy to break at the sealing part, the present invention provides a plastic bag with different heat-sealing line shapes, which can significantly improve the carrying capacity of the plastic bag

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
  • Plastic bag with different heat sealing thread shapes
  • Plastic bag with different heat sealing thread shapes
  • Plastic bag with different heat sealing thread shapes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The plastic bag of the present invention will be described in detail below according to the drawings.

[0015] figure 1 Shown is a perspective view of a traditional plastic bag with inward folding. The plastic bag in the figure is in the shape of a long strip and rolled into a roll, and there is a heat sealing line and a tearing line at every appropriate length of the long strip. . When the plastic bag is torn by the tear line, its three-dimensional view is as follows figure 2 shown.

[0016] image 3 It is a packaging perspective view of the present invention. The plastic plastic bag in the figure is still in the shape of a long belt and is rolled into a roll. The difference from the traditional plastic plastic bag is that the heat sealing line 1 pressed at every appropriate length of the long belt It is not a straight line parallel to the tear line 2, but a curve, fold line or other curve with an arc. When the plastic bag is torn by the tear line, such as Figur...

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 present invention relates to plastic and aims at providing one kind of plastic bag with non-linear hot sealing line and thus raised bearing capacity. Unlike traditional plastic bag, which has straight hot sealing line, the plastic bag has curved or broken hot sealing line. Repeated test shows that the plastic bag with non-linear hot sealing line has obviously raised bearing capacity.

Description

[0001] Field of study [0002] The present invention relates to a plastic bag. Background technique [0003] After the traditional plastic bag is blown from plastic film, it is flattened into a semi-finished tubular plastic bag by a roller, a tear line is pressed between the bags, and heat-sealed at an appropriate length. The heat-sealing line is usually a straight line, located at At the bottom or both sides of the bag, usually, the plastic bag body is rolled into a cylindrical shape. When in use, the bag body is torn off along the tearing line to form the opening 4 of the next plastic bag. There is also an improved plastic bag, which is folded inside 3 on both sides of the bag body to reduce the width of the plastic bag, avoid the roll being too wide, and also make the bottom of the plastic bag close to a cylindrical shape for ease of use. Since the heat sealing line of ordinary plastic bags is a straight line, it is easy to...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/74B65B51/26
Inventor 翁焕贵苏俊铭
Owner SHENZHEN JUNHAO PLASTIC
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