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Easy-tearing type dry composite sheet and production method thereof

A dry composite, sheet technology, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., to achieve good stretch forming performance, good heat sealing effect, and good forming performance.

Active Publication Date: 2013-12-11
GLODSTONE PACKAGING JIAXING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to select suitable materials to make a composite sheet that can meet online production. The sheet needs to have good printing effect, heat sealing performance, easy tearability, and formability. The composite sheet has a good molding effect during online processing, and the printed pattern is exquisite without obvious deformation after molding. It has a good heat-sealing effect and can be easily torn when used by consumers, thereby providing an easy-to-tear dry type composite sheet and its production method

Method used

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  • Easy-tearing type dry composite sheet and production method thereof
  • Easy-tearing type dry composite sheet and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 1 , figure 2 Shown: an easy-to-tear dry-type composite sheet, including a body 1, the body 1 is provided with a printing layer 11, a base layer 12, and a heat-sealing layer 13 sequentially from top to bottom, and the printing layer 11 is cast polystyrene. Acrylic film, the base layer 12 is polyethylene terephthalate, the heat-sealing layer 13 is a polyethylene film, and the printing layer 11 and heat-sealing layer 13 are all fixed on the base layer 12 by polyurethane adhesive 2 Above, the thickness of the polyurethane adhesive 2 is 2-3 μm, and the thickness of the base layer 12 is 50-100 μm. The polyurethane adhesive 2 has good sealing performance. When the thickness of the polyurethane adhesive 2 is less than 2 m, the plastic film Poor fixing performance, easy to fall off, and poor reliability. When the thickness of the polyurethane adhesive 2 is greater than 3m, it is not conducive to the adhesion of the plastic film and paper, and the use effect is p...

Embodiment 2

[0033]An easy-to-tear dry-type composite sheet, the polyethylene film includes the following components by weight: 32.4% low-density polyethylene, 32.6% linear low-density polyethylene, polybutene-low-density polyethylene blended resin 32.9%, anti-blocking agent 2%, slippery agent 1.5%, and other convenient component percentages can also be used. The polyethylene film made according to the above-mentioned percentages has good heat-sealability and easy tearability, and the use performance it is good.

Embodiment 3

[0035] An easy-to-tear dry-type composite sheet, the polyethylene film includes the following components by weight: low-density polyethylene 32%, linear low-density polyethylene 31.7%, polybutene-low-density polyethylene blended resin 31.3%, anti-blocking agent 3%, slip agent 2%, and other convenient component percentages can also be used. The polyethylene film made according to the above-mentioned percentages has good heat-sealability and easy tearability. it is good.

[0036] At a temperature of 190°C and a load of 2.16kg, the melt index of the low-density polyethylene is 1.5-1.9 g per ten minutes, and the melt index of the linear low-density polyethylene is 2.0-2.4 g per ten minutes. The melt index of the polybutene-low density polyethylene blended resin is 1.8-2.3g per ten minutes, which is convenient for polyethylene compounding, and the polyethylene after production has good heat sealing performance. The anti-blocking agent contains two Silicon oxide polyethylene, the s...

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Abstract

The invention relates to an easy-tearing type dry composite sheet. The easy-tearing type dry composite sheet comprises a body, wherein a printing layer, a base layer and a heat sealing layer are arranged on the body from top to bottom in sequence; the printing layer is a casting polypropylene film; the base layer is polyethylene glycol terephthalate; and the heat sealing layer is a polyethylene film. The easy-tearing type dry composite sheet has the advantages that the casting polypropylene film, the polyethylene glycol terephthalate and the polyethylene film are compounded into the body; the casting polypropylene film has good printing and stretching and forming performances, the polyethylene glycol terephthalate has good forming performances, and the polyethylene film has easy-tearing performance, so that the produced body is enabled to have a good printing effect, heat sealing performance, easy-tearing performance and forming performance, and the good forming effect is ensured during on-line processing, so that formed printed pattern is exquisite and not obviously deformed, good in heat sealing effect while being used by a consumer, and can be easily torn apart.

Description

technical field [0001] The invention relates to an easy-to-tear dry composite sheet and a production method thereof. Background technique [0002] Sheet refers to resin (or direct polymerization of monomers during processing) as the main component, with plasticizers, fillers, lubricants, colorants and other additives as auxiliary components, which can be flow-formed during processing, with a thickness of between Soft flat materials between 0.25 mm and 2 mm and hard flat materials with a thickness of less than about 0.5 mm. The current sheets mainly include a single-layer sheet formed by heating and extruding a single material through a single screw, or a multi-layer co-extruded sheet formed by co-extruding similar materials through heating and co-extruding with different screws, and a sheet formed by dry composite processing. The materials are very few and simple. [0003] The so-called dry lamination process is the process of coating the adhesive on a layer of film, dryin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/32B32B27/36C08L23/08C08L23/12C08L23/20B29D7/01
Inventor 赵国途卿前仲
Owner GLODSTONE PACKAGING JIAXING
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