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Environment protecting paper

A technology of environmentally friendly paper and composition, which is applied in the field of environmentally friendly paper and its manufacturing, and can solve the problems of no tearing, no oxidative decomposition, poor folding properties, etc.

Inactive Publication Date: 2005-08-10
LUNG MENG ENVIRONMENTAL FRIENDLY PAPER PROD HONG KONG HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the above-mentioned synthetic paper are poor foldability, too much difference in transverse and longitudinal tearability or no tearability...etc.
In addition, synthetic paper made of polypropylene plastic as the main material cannot be oxidized and decomposed in a short period of time in the natural environment if it is discarded outdoors after use, failing to reduce secondary pollution; and the cost of synthetic paper made is also lower than that of wood. Pulp and paper are much higher
Based on the above shortcomings, synthetic paper has not been favored by consumers

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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] Embodiment 1: the manufacture of single-layer environmental protection paper

[0093] 60% by weight of natural inorganic mineral powder (wherein calcium carbonate accounts for 28% by weight, titanium dioxide accounts for 7% by weight, diatomaceous earth accounts for 25% by weight); 38% by weight of polyethylene (wherein high density polyethylene accounts for 20% by weight, low Density polyethylene accounts for 10% by weight, linear low density polyethylene accounts for 8% by weight) and 2% by weight of additives (0.8% by weight of β-(3,4-epoxycyclohexyl) ethyl trimethoxysilane, 0.4% by weight % N-oleyl palmitic acid amide and 0.8% by weight N,N-bis(2-hydroxyethyl)stearamide). The above material ingredients add up to 100% by weight. After mixing, extrusion, kneading and polymerization, they are made into granules, put into paper film manufacturing machinery, and production adjustments are made according to the requirements of product thickness to produce single-layer env...

Embodiment 2

[0094] Embodiment 2: the manufacture of single-layer environmental protection paper

[0095] 70% by weight of natural inorganic mineral powder (wherein calcium carbonate accounts for 35% by weight, titanium dioxide accounts for 6% by weight, diatomaceous earth accounts for 24% by weight, clay accounts for 5% by weight); 28% by weight polyethylene (wherein high density polyethylene accounts for 5% by weight); 20% by weight, linear low density polyethylene accounts for 8% by weight) and 2% by weight of additives (0.8% by weight (3,4-epoxycyclohexyl) ethyl trimethoxysilane, 0.4% by weight N-oleyl palm acid amide and 0.8% by weight N,N-bis(2-hydroxyethyl)stearamide). The above material ingredients add up to 100% by weight. After mixing, extrusion, kneading and polymerization, they are made into granules, put into paper film manufacturing machinery, and production adjustments are made according to the requirements of product thickness to produce 73 micron and 82 micron environmenta...

Embodiment 3

[0096] Embodiment 3: the manufacture of single-layer environmental protection paper:

[0097] 80% by weight of natural inorganic mineral powder (wherein calcium carbonate accounts for 35% by weight, titanium dioxide accounts for 5% by weight, diatomaceous earth accounts for 35% by weight, and talcum powder accounts for 5% by weight); 18% by weight of polyethylene (high-density polyethylene) And 2% by weight of additives (0.8% by weight of β-(3,4-epoxycyclohexyl) ethyl trimethoxysilane, 0.4% by weight of N-oleyl palmitic acid amide and 0.8% by weight of N-bis(2- hydroxyethyl) stearamide). The above material ingredients add up to 100% by weight. After mixing, extrusion, kneading and polymerization, they are made into granules, put into paper film manufacturing machinery, and production adjustments are made according to the requirements of product thickness to produce environmentally friendly paper film substrates of 102 microns and 116 microns.

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
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Abstract

An environment protection type paper is made up from natural inorganic ore powder 56-80 wt.%, polyethylene 43-18 wt.% and assistant 1-2 wt.% through proportionally mixing, squeezing and pugging, then granulating; high-temp. extruding, soflening and discharging via O-shaped nozzle to become tubular film, cooling to 80-120 deg.C; filling compressed air into tubular film for expanding it, making the tubular film extend, and streching the tabular film to obtain the paper with bidirectional strength.

Description

[0001] This application is a divisional application of Chinese invention patent application 98100956.5 submitted on March 25, 1998. technical field [0002] The invention relates to an environmentally friendly paper and a manufacturing method thereof. Background technique [0003] At present, many kinds of synthetic papers have been invented in the world. Among them, the single-layer and multi-layer synthetic papers with polypropylene as the main component and inorganic mineral powder as the filler are all manufactured with the traditional plastic film product formula. In the manufacturing process, single-layer or multi-layer co-extrusion is used, and the forming die is made into a sheet with a straight die structure. After longitudinal stretching, the two sides of the sheet surface are laminated with the sheet or coated with a film. , and then stretched transversely; the synthetic middle layer made has two-way stretching, while th...

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
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Application Information

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IPC IPC(8): B29C55/30
Inventor 梁石辉
Owner LUNG MENG ENVIRONMENTAL FRIENDLY PAPER PROD HONG KONG HLDG
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