Co-extrusion hot-pressing functional film for disposable sugarcane paper pulp container

A functional film, a one-off technology, used in the field of plastic film for packaging and co-extrusion hot-pressed functional film, it can solve the problems of water resistance and oil resistance, and achieve easy oil leakage, excellent adhesion, and excellent needle resistance. The effect of hole performance

Inactive Publication Date: 2018-04-06
JIANGMEN PENGJIANG HUALONG PACKING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, the use of biologically derived sugarcane pulp to support lunch boxes has problems such as water resistance and oil resistance.

Method used

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  • Co-extrusion hot-pressing functional film for disposable sugarcane paper pulp container
  • Co-extrusion hot-pressing functional film for disposable sugarcane paper pulp container
  • Co-extrusion hot-pressing functional film for disposable sugarcane paper pulp container

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The co-extruded and hot-pressed functional film for disposable sugarcane pulp container described in Example 1 of the present invention includes a polyethylene resin layer with a three-layer structure.

[0024] The raw material of the polyethylene resin layer includes the following components in weight percentage: low density polyethylene resin (LDPE) 5-75%, vinyl acetate copolymer resin (EVA) 5-75%, linear low-density polymer containing 6 carbon atoms Vinyl resin (C6LLDPE) 10-25%, linear low-density polyethylene resin (C8LLDPE) containing 8 carbon atoms 10-25%.

[0025] The method of preparing this co-extrusion hot-pressing functional film is: adding the raw materials into the extruder to melt and plasticize and then output, convey the material output from the extruder to the die, extrude the blown film, and then cool it by air cooling. The co-extrusion hot-pressed functional film can be obtained; the parameters of the extruder and the die are set as follows: the processing...

Embodiment 2

[0027] The co-extruded hot-pressed functional film for disposable sugarcane pulp container described in Example 2 of the present invention includes a polypropylene resin layer with a three-layer structure.

[0028] The raw material of the polypropylene resin layer includes the following components in weight percentage: 10-30% of homopolypropylene, 10-40% of copolymer polypropylene, and 30-80% of ternary polypropylene resin.

[0029] The method of preparing this co-extrusion hot-pressed functional film is: adding the raw materials to the extruder to melt and plasticize and then output, transport the materials output from the extruder of each layer to the die, extrude the blown film, and then pass the air cooling After cooling, a co-extrusion hot-pressed functional film can be obtained; the parameters of the extruder and die are set as follows: the processing temperature is 200℃, the processing pressure is 90Mpa, and the processing temperature of the die is 250℃.

Embodiment 3

[0031] The co-extruded hot-pressed functional film for disposable sugarcane pulp container described in Example 3 of the present invention includes a three-layer multi-layer co-extruded film; the multi-layer co-extruded film layer is a barrier layer, an adhesive layer and a thermal The sealing layer, the barrier layer is a three-membered cyclohexanoic acid ring-opening superposition PA resin, the adhesive layer is α, β-unsaturated acid or modified polyolefin resin, and the heat sealing layer is a polyethylene resin layer.

[0032] The raw material of the polyethylene resin layer includes the following components in weight percentage: low-density polyethylene resin (LDPE) 5-75%, vinyl acetate copolymer resin (EVA) 5-75%, linear low-density polymer containing 6 carbon atoms Vinyl resin (C6LLDPE) 10-25%, linear low-density polyethylene resin (C8LLDPE) containing 8 carbon atoms 10-25%.

[0033] The method of preparing a multi-layer co-extruded film with special functions is: adding the...

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Abstract

The invention discloses a co-extrusion hot-pressing functional film for a disposable sugarcane paper pulp container. The functional film comprises a polyethylene resin layer with a three-layer structure, a polypropylene resin layer with a three-layer structure, and a multilayer co-extrusion film with a structure having at least three layers. The functional film has excellent deep drawability, paper pulp adhesive property, waterproof performance, oil resistant performance, and temperature resistant performance, and also has excellent transparency, puncture resistant performance, impact resistant performance, gas barrier property, tensile strength, and heatproof performance. All functions of the functional film all meet the industrial production standards. The produced co-extrusion hot-pressing functional film has excellent adhesive force and acupuncture resistant performance, and oil leakage is prevented.

Description

Technical field [0001] The invention relates to a plastic film for packaging, and relates to the technical field of co-extrusion films, in particular to a co-extrusion hot-pressed functional film applied to a disposable sugarcane pulp container to achieve excellent functions such as waterproof and oil-proof. Background technique [0002] So far, most of the raw materials of disposable lunch boxes are derived from plastic. It is more difficult to recycle and reuse after use, and the process of biodegradation is slow or some cannot achieve degradation. For example, combustion treatment will produce air pollution and cause serious pollution to the environment. [0003] In Europe and other countries, the use of plastic disposable lunch boxes has begun to be restricted. Therefore, the degradable or biologically derived disposable lunch boxes are constantly being developed. [0004] However, in the prior art, using bio-derived sugarcane pulp to support the lunch box has problems such as w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/32B32B27/08B32B27/28
CPCB32B27/32B32B27/08B32B27/28
Inventor 文斌森
Owner JIANGMEN PENGJIANG HUALONG PACKING MATERIAL
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