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Easily-degradable and recyclable paper and application thereof

A technology that is easy to degrade and recycle paper, applied in the field of materials, can solve problems such as the impact of resources, ecological environment, etc., and achieve the effect of realizing industrialized continuous production, reducing use costs, and eliminating the discharge of three wastes

Active Publication Date: 2013-12-18
云南昆钢石头纸环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above packaging materials will cause adverse effects on the waste of resources and the ecological environment

Method used

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  • Easily-degradable and recyclable paper and application thereof
  • Easily-degradable and recyclable paper and application thereof
  • Easily-degradable and recyclable paper and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of easily degradable and recyclable paper material, the ratio of base layer: outer layer is 99:1, and its composition and weight percentage are: base layer, calcium carbonate powder 80%, synthetic resin PP17%, auxiliary agent 3% (0.5% Aluminate, 0.8% polyethylene wax, 1.2% paraffin, 0.3% stearic acid, 0.1% pro-degradant, 0.2% antioxidant); outer coating, (EVA10%, PP90%). It is jointly extruded and calendered by a two-layer co-extrusion equipment, and the upper outer cladding layer is hot-bonded on the upper side of the base layer. The base layer is a non-foaming stone paper layer, and the upper outer cladding layer is a food contact layer; the stone The total thickness of the paper stone paper sheet is 0.5 mm.

Embodiment 2

[0031] A kind of easily degradable and recyclable paper material, base layer: outer covering layer is 80:20, its composition and weight percentage are: base layer, inorganic powder 80% (calcium carbonate powder 70%, talcum powder 10%) synthetic resin 15 % (LDPE3%, LLDPE2%, HDPE10%), auxiliary additives 5% (1% aluminate, 1.2% polyethylene wax, 0.8% paraffin, 1% stearic acid, 0.2% degradation aid , 0.2% antioxidant, 0.6% foaming agent); outer cladding, (EAA5%, HDPE95%. Together, they are extruded and calendered by a three-layer co-extrusion equipment, and the upper and lower outer cladding layers are respectively Hot-bonded on the upper and lower sides of the base layer, the base layer is a foamed stone paper layer, and the upper and lower outer covering layers are both food contact layers; the total thickness of the stone paper stone paper sheet is 0.4mm.

Embodiment 3

[0033] A kind of easily degradable and recyclable paper material, base layer: outer covering layer is 85:15, its composition and weight percentage are: base layer, inorganic powder 80% talcum powder 100%, synthetic resin 15% (PP10%, LLDPE3% ), auxiliary agent 5% (1% aluminate, 0.8% polyethylene wax, 1% paraffin, 0.5% stearic acid, 0.3% pro-degradant, 0.4% antioxidant, 1% Foaming agent); Outer layer, (PP80%, LLDPE20%). It is jointly extruded and calendered by a three-layer co-extrusion equipment, and the upper and lower outer cladding layers are thermally pasted on the upper and lower sides of the base layer respectively. The base layer is a foamed stone paper layer, and the upper and lower outer cladding layers Both are food contact layers; the total thickness of the stone paper stone paper sheet is 0.7mm.

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Abstract

The invention discloses easily-degradable and recyclable paper and an application thereof. The easily-degradable and recyclable paper is composed of a substrate and an external coating, wherein the substrate is composed of the following components in percentage by weight: 60-80 percent of inorganic powder, 15-35 percent of synthetic resin and 1-5 percent of auxiliaries; the external coating is made of one or a combination of more than one of EVA (Ethylene Vinyl Acetate), EAA (Ethylene Acrylic Acid), MPE (metallocene polyethylene), HDPE (high-density polyethylene), LDPE (Low-Density Polyethylene), MDPE (medium density polyethylene), LLDPE (linear low density polyethylene) and PP (Propene Polymer); the application refers to an application of the easily-degradable and recyclable paper in preparation of disposable food packaging containers. According to the easily-degradable and recyclable paper and the application thereof, the external coating and the substrate are respectively formed once, so that the manufacturing cost is reduced, the problem of compounding a residual solvent and the influence on factors, such as storage environment are foundationally eliminated, no harmful substance can be generated, and no environmental pollution and no three-waste emission are caused; the easily-degradable and recyclable paper can be completely recycled to be made into other plastic products after being used, so that energy sources are saved and the using cost is also reduced. The easily-degradable and recyclable paper is degradable, good in surface printing effect, low in production cost, high in opaqueness, completely recyclable and capable of realizing industrial continuous production.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to an easily degradable and recyclable paper material and its application. Background technique [0002] Nowadays, paper has become an indispensable part of people's life. As the most traditional and oldest information recording carrier, it is widely used in packaging materials, sanitary materials, environmental protection tableware and other fields. China has become the largest of paper products consuming countries. With the rapid development of the economy and the continuous improvement of people's living standards, people's excessive use and over-reliance on paper makes people's demand for paper still increase year by year, resulting in a large number of trees being felled, and the accompanying paper production process The comprehensive environmental problems caused by the "three wastes" pollution problem urgently need a new solution. [0003] In such a historical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/20B32B27/32B32B27/30B65D65/46B65D65/40
CPCY02W30/80Y02W90/10
Inventor 刘海国郭嘉麟严杨刘瑞铭赵华玲
Owner 云南昆钢石头纸环保材料有限公司
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