CN100448658C - Method for producing honeycomb cardboard by using waste paper products - Google Patents

Abstract

The present invention relates to a production method for honeycomb paper boards, which aims at solving the problem of providing a method for producing honeycomb paper boards by using waste paper. The present invention has the following steps which comprise the treatment of raw materials, the production of paper boards, the production of single-side corrugated paper, the production of honeycomb, the production of honeycomb paper boards, etc. The present invention can use resourceful waste paper directly for producing honeycomb paper boards directly, which eliminates steps of the production of pulp and the production of paper. Meanwhile, the present invention simplifies the production of honeycomb paper cores, reduces the investment and cost, and is suitable for large popularization and use. The method of the present invention can enlarge the recycle and the use of waste paper greatly, and is favorable to environmental protection. The present invention reduces the energy consumption.

Description

Method for producing honeycomb cardboard by using waste paper products

technical field

The invention relates to a production method of honeycomb paperboard, specifically a method for producing honeycomb paperboard by using waste paper products.

Background technique

China's waste paper consumption increased from 8.1 million tons in 1995 to 16.38 million tons in 2001, doubling in five years. However, there is still a gap compared with some foreign countries with a large amount of waste paper. At present, the development of China's waste paper recycling is unbalanced, and the coastal areas develop rapidly. In 2001, the national waste paper pulp consumption accounted for 44% of the total pulp used in papermaking. After deducting imported waste paper, the domestic waste paper recovery rate was less than 30%. Surveys show that about 1.3 million tons of waste paper produced in Shanghai each year are basically recycled, and most of them are sent to other places for the production of low-grade recycled paper.

At present, there are two main methods of using waste paper to produce cardboard: one is to first reduce the waste paper into pulp, and then make paper and hard paper, and then, first, make corrugated cardboard; second, make honeycomb paper core, Then make honeycomb cardboard. The latter is a new technology developed in recent years. Our country is still in its infancy. Most of the equipment is imported from abroad, and the price is very high. Domestic equipment is being developed and improved.

Contents of the invention

The purpose of the present invention is: to provide a kind of honeycomb paperboard that directly utilizes waste paper products with rich resources, which saves the two processes of pulping and paper remaking, that is, the manufacturing process is simply using waste paper, waste cardboard and waste corrugated paper. Method for producing honeycomb paperboard.

The specific production process method is as follows:

1. A method for producing honeycomb paperboard by using waste paper products, characterized in that: comprising the following steps

(1) Raw material handling

A. Disassemble the collected waste paper products into sheets, and classify the paper sheets with the same size, texture and thickness;

B. Cut the waste paper products that have been disassembled into sheets into quadrilaterals with a side length of not less than 20 cm;

C. Dry, flame-retardant, moisture-proof and mildew-proof treatment for the cut quadrilateral waste paper products;

The waste paper products are waste paper, waste corrugated paper, and waste cardboard;

(2) Cardboard production

Paste the waste paper sheets cut into pieces into cardboard layer by layer, and the paste layer is 5-15 layers; and match the length and width of the honeycomb surface, the width of the honeycomb surface is 0.8-1.3 meters, and the length is 1-2.2 meters; then carry out dry processing, standby;

(3) Production of single-sided corrugated paper

The quadrilateral waste cardboard cut into pieces is double-layered into a single-sided corrugated paper machine to make single-sided corrugated paper sheets for later use;

(4) Production of honeycomb

Paste the waste corrugated paper sheets or single-sided corrugated paper sheets neatly layer by layer into a cube with a honeycomb surface width of 0.8-1.3 meters, a length of 1-2.2 meters, and a height of not less than 0.2 meters; the thickness of the same layer of materials is the same; then dry treatment ,spare;

(5) Making honeycomb cardboard

A, above-mentioned honeycomb cube is cut into honeycomb paper core along corrugated tube cross-sectional direction, and the thickness of honeycomb paper core is 0.6-10 centimetre;

B. The honeycomb paperboard is obtained by pasting cardboards made of waste paper sheets on the honeycomb surfaces on both sides of the honeycomb paper core.

2. The method for producing honeycomb paperboard using waste paper products according to the above 1, characterized in that: the waste paper is waste kraft paper.

3. The method for producing honeycomb cardboard using waste paper and corrugated paper according to the above-mentioned 1 is characterized in that: the making of the cardboard is to paste the waste paper sheets cut into pieces into cardboard layer by layer, and the pasting layer is 8-15 floors.

4. The method for producing honeycomb paperboard using waste paper and corrugated paper according to the above 1, characterized in that: the waste hard paper is waste corrugated base paper, waste honeycomb base paper, horse manure paper, and yellow board paper.

Beneficial technical effect of the present invention is embodied in following several aspects:

1. The production process of the present invention can directly use waste paper products with rich resources to directly produce honeycomb paperboard, which saves the two processes of pulping and papermaking, simplifies the technology of making honeycomb paper core, and saves the special equipment for making honeycomb paper core .

2. The production method of the present invention expands the recycling path of waste paper products in my country, can greatly improve the recycling and utilization of waste paper products, is beneficial to environmental protection, and reduces energy consumption.

3. The product honeycomb paperboard produced by the method of the present invention has excellent performance, light weight, shock insulation, heat insulation, sound insulation, flame retardancy, moisture resistance, and mildew resistance. It can replace wood boards and is widely used in construction, vehicle and ship manufacturing, and furniture manufacturing. , packaging industry, transportation industry, etc., producing various furniture, interior partition walls, decorative panels, packing boxes, pallets, etc.

Detailed ways

Below in conjunction with embodiment, the present invention will be further described.

Example 1:

The method for producing honeycomb paperboard with waste paper products comprises the following process steps:

(1) Raw material handling

A. Disassemble the collected waste paper products into sheets, and classify the paper sheets with the same size, texture and thickness;

B. Cut the waste paper products that have been disassembled into sheets into quadrilaterals with a side length of not less than 20 cm;

C. Dry, flame-retardant, moisture-proof and mildew-proof treatment for the cut quadrilateral waste paper products;

The above-mentioned waste paper products are waste paper, waste corrugated paper, and waste cardboard;

The waste cardboard can be waste corrugated base paper, waste honeycomb base paper, horse manure paper, or yellow cardboard.

(2) Cardboard production

Paste the waste paper cut into pieces into cardboard layer by layer, with 5-8 layers of paste; and match the length and width of the honeycomb surface, the width of the honeycomb surface is 0.8-1.3 meters, and the length is 1-2.2 meters. Then carry out drying treatment and set aside; said drying treatment is either air-drying or drying in drying equipment. Adhesives generally use wood and paper adhesives with good waterproof and anti-aging properties.

(3) Production of single-sided corrugated paper

The quadrilateral waste hard paper cut into pieces is double-layered into a single-face corrugating machine to make single-face corrugated paper sheets for later use. The waste cardboard here can be waste corrugated base paper, waste honeycomb base paper, horse manure paper, or yellow cardboard.

(4) Production of honeycomb

Paste waste corrugated paper sheets or single-sided corrugated paper sheets neatly layer by layer into a cube with a honeycomb surface width of 0.8-1.3 meters, a length of 1-2.2 meters, and a height of not less than 0.2 meters; Or single-sided corrugated sheets are of the same thickness. Then dry it for later use.

(5) Making honeycomb cardboard

A, above-mentioned honeycomb cube is cut into honeycomb paper core along the corrugated pipe cross-sectional direction, and the thickness of honeycomb paper core can be 0.6-10 centimeters;

B. The honeycomb paperboard is obtained by pasting cardboards made of waste paper sheets on the honeycomb surfaces on both sides of the honeycomb paper core.

It must be noted that when cutting the honeycomb, the feeding direction is along the cross-sectional direction of the corrugated tube to cross the corrugated tube, and cut into honeycomb core blocks of various specifications such as 0.6, 1.0, 1.2, 2.0, 5.0, 6.0... cm thick.

In order to prevent the cut honeycomb core from breaking, the cutting and veneering can be carried out at the same time: the specific operation steps are as follows, (1), first brush the cut surface of the honeycomb with glue; (2), put the face paper board to be pasted close to the cutting, Prepare to undertake the cut honeycomb core block; (3), cut the honeycomb core block on the face paper board; (4), brush glue on the other side of the cut honeycomb core block, and place another face paper board to be bonded, After drying, the honeycomb cardboard is obtained.

Example 2:

The processing steps of the method for producing honeycomb paperboard with waste paper products are basically the same as in Example 1:

The difference is:

When making cardboard, the waste paper cut into pieces is pasted layer by layer to form cardboard. In order to improve the load-bearing and impact resistance, the pasting layer is 9-15 layers. Then carry out drying treatment for future use; said drying treatment is either air-drying or drying in drying equipment. Adhesives generally use wood and paper adhesives with good waterproof and anti-aging properties.

Example 3:

The production of honeycomb can directly use finished corrugated paper, single-sided corrugated paper or five-layer corrugated paper, and other production steps are the same as in Example 1.

Corrugated paper can use the same thickness of material. In order to save raw materials, corrugated paper with a single layer thickness greater than 4.5 mm should be selected.

Claims (4)

1. A method for producing honeycomb paperboard by using waste paper products, characterized in that: comprising the following steps (1) Raw material handling A. Disassemble the collected waste paper products into sheets, and classify the paper sheets with the same size, texture and thickness; B. Cut the waste paper products that have been disassembled into sheets into quadrilaterals with a side length of not less than 20 cm; C. Dry, flame-retardant, moisture-proof and mildew-proof treatment for the cut quadrilateral waste paper products; The waste paper products are waste paper, waste corrugated paper, and waste cardboard; (2) Cardboard production Paste the waste paper sheets cut into pieces into cardboard layer by layer, and the paste layer is 5-15 layers; and match the length and width of the honeycomb surface, the width of the honeycomb surface is 0.8-1.3 meters, and the length is 1-2.2 meters; then carry out dry processing, standby; (3) Production of single-sided corrugated paper The quadrilateral waste cardboard cut into pieces is double-layered into a single-sided corrugated paper machine to make single-sided corrugated paper sheets for later use; (4) Production of honeycomb Paste the waste corrugated paper sheets or single-sided corrugated paper sheets neatly layer by layer into a cube with a honeycomb surface width of 0.8-1.3 meters, a length of 1-2.2 meters, and a height of not less than 0.2 meters; the thickness of the same layer of materials is the same; then dry treatment ,spare; (5) Making honeycomb cardboard A, above-mentioned honeycomb cube is cut into honeycomb paper core along corrugated tube cross-sectional direction, and the thickness of honeycomb paper core is 0.6-10 centimetre; B. The honeycomb paperboard is obtained by pasting cardboards made of waste paper sheets on the honeycomb surfaces on both sides of the honeycomb paper core. 2. The method for producing honeycomb paperboard by using waste paper products according to claim 1, characterized in that: the waste paper is waste kraft paper. 3. The method for producing honeycomb cardboard using waste paper products according to claim 1, characterized in that: said cardboard is made by pasting waste paper sheets cut into pieces into cardboard layer by layer, and the pasting layer is 8-15 floors. 4. The method for producing honeycomb paperboard by using waste paper products according to claim 1, characterized in that: said waste cardboard is waste corrugated base paper, waste honeycomb base paper, horse manure paper, and yellow board paper.