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Manufacturing method for environment-friendly paper-plastic compound bag

A paper-plastic composite bag and a manufacturing method technology, which are applied in the manufacturing of flexible containers, chemical instruments and methods, papermaking, etc., can solve the problems of high cost, the application field of paper-plastic bags is not as wide as plastic bags, and the cost is high, and the quality is stable. , high degree of automation, the effect of reducing production costs

Inactive Publication Date: 2018-12-14
桐城市万方纸塑包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, due to the relatively high cost of paper-plastic bags, the cost is higher than that of ordinary plastic bags, so the application fields of paper-plastic bags are not as wide as plastic bags, and the cost of paper-plastic bags also needs to be further resolved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] The invention provides an environment-friendly paper-plastic bag and a preparation method thereof, comprising the following steps:

[0019] First mix polyethylene, emulsified silicone oil, lubricant, phosphite, solubilizer, and degradable substances, and put the mixed masterbatch A into an extruder for extrusion molding and processing to obtain the easily degradable plastic film;

[0020] Wherein, the extruder includes a feeding section, a middle section and an extruder head connected in sequence, and the working temperature of the extruder is: feeding section 110-130°C, middle section 130-160°C, extruder head 210°C -280°C.

[0021] There are many options for the preparation of the above-mentioned degradable substances, but in order to further provide the properties of the prepared degradable substances, preferably, the degradable substances are prepared by the following method:

[0022] Thermoplastic starch plastics, aliphatic polyester, polylactic acid, starch / polyv...

Embodiment 1

[0027] The environment-friendly paper plastic bag of this embodiment comprises an outer layer and an inner layer, the outer layer is a paper layer, the inner layer is a plastic layer, and the plastic layer is made of the following raw materials in parts by weight: 10-20 parts of polyethylene, 2-20 parts of emulsified silicone oil 3 parts, 2-3 parts of lactose, 2-3 parts of lubricant, 1-2 parts of phosphite, 1-2 parts of solubilizer, 10-20 parts of biodegradable plastics, 2-3 parts of degradable substances.

[0028] The preparation method of the environment-friendly paper-plastic composite bag of the present embodiment comprises the following steps:

[0029] S01: Mix the above-mentioned various raw materials to prepare masterbatch A, put masterbatch A into the extruder, extrude and stretch to obtain a plastic film, the working temperature of the extruder is: feeding section 110-130°C , middle section 130-160°C, extruder head 210-280°C;

[0030] S02: cutting the plastic film ob...

Embodiment 2

[0033] The environment-friendly paper plastic bag of this embodiment comprises an outer layer and an inner layer, the outer layer is a paper layer, the inner layer is a plastic layer, and the plastic layer is made of the following raw materials in parts by weight: 10-20 parts of polyethylene, 2-20 parts of emulsified silicone oil 3 parts, 2-3 parts of lactose, 2-3 parts of lubricant, 1-2 parts of phosphite, 1-2 parts of solubilizer, 10-20 parts of biodegradable plastics, 2-3 parts of degradable substances.

[0034] The preparation method of the environment-friendly paper-plastic composite bag of the present embodiment comprises the following steps:

[0035] S01: Mix the above-mentioned various raw materials to prepare masterbatch A, put masterbatch A into the extruder, extrude and stretch to obtain a plastic film, the working temperature of the extruder is: feeding section 130-150°C , middle section 160-180°C, extruder head 280-330°C;

[0036] S02: cutting the plastic film ob...

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PUM

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Abstract

The invention discloses a manufacturing method for an environment-friendly paper-plastic compound bag. The manufacturing method comprises the following steps that raw materials are matched, specifically, the raw materials comprise 10-20 parts of ethylene, 2-3 parts of emulsified silicone oil, 2-3 parts of lactase, 2-3 parts of lubricants, 1-2 parts of phosphorous ester, 1-2 parts of solubilizers,10-20 parts of biodegradable plastic and 2-3 parts of degradable substances, the polyethylene, the emulsified silicone oil, the lubricants, the phosphorous ester, the solubilizers and the degradable substances are mixed firstly, a mixed master batch A is obtained, and then the master batch A is put into an extruding machine to be subjected to extrusion molding and is machined to be manufactured into an easily degradable plastic film; the extruding machine comprises an adding section, a middle section and an extruding machine head which are connected in sequence, and the working temperature ofthe extruding machine is that the adding section is 110-130 DEG C, the middle section is 130-160 DEG C, and the extruding machine head is 210-280 DEG C. The environment-friendly paper-plastic compoundbag is excellent in mechanical property and easy to degrade, the raw materials are simple and easy to obtain, and the paper-plastic compound bag manufactured through the manufacturing method is durable and environmentally friendly and is suitable for being widely used.

Description

technical field [0001] The invention belongs to the technical field of paper-plastic composite bag and its preparation, and in particular relates to a manufacturing method of an environment-friendly paper-plastic composite bag. Background technique [0002] Plastic bags are very common in daily life, because they are easy to use, they are often used to pack and store food. The most common plastic bags can be classified into plastic bags and paper-plastic composite plastic bags according to their materials. Although plastic bags have strong toughness and durability, they are far inferior to paper-plastic composite bags in terms of environmental protection. Although the mechanical strength of paper-plastic composite plastic bags is not as good as that of plastic bags, their paper layer is easy to degrade, and the inner plastic layer is also stronger than ordinary plastic bags. It should be thin and made of degradable materials, which can degrade faster, thereby protecting the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31B70/00C08L23/06C08L3/02C08L67/00C08L67/04C08L29/04C08L33/26C08L83/04C08K5/1545C08K5/524C08J5/18B29C47/92B32B27/10B32B27/32B32B27/18B32B29/00B32B37/00B32B38/00B29C48/92
CPCB31B70/00B32B27/10B32B27/18B32B27/32B32B29/00B32B37/00B32B38/0004B32B2307/7163C08J5/18C08J2303/02C08J2323/06C08J2329/04C08J2367/00C08J2367/04C08J2423/06C08J2433/26C08J2467/04C08J2483/04C08K5/1545C08K5/524
Inventor 方星黄胜方亮曹顺毛曙明张帆
Owner 桐城市万方纸塑包装有限公司
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