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Protective and rustproof packaging material for condensation-proof steel coil and production method thereof

A technology for anti-rust packaging materials and production methods, applied in the directions of packaging, wrapping paper, transportation and packaging, etc., can solve the problems of incomplete airtightness, affecting the anti-rust function of products, and single function, and achieve the effect of increasing protection.

Inactive Publication Date: 2014-01-15
沈阳防锈包装材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there is no suitable packaging material for the storage and packaging of metallurgical steel coils. Although fabric-reinforced anti-rust paper or composite woven cloth and other packaging materials are used, there are obvious deficiencies, and the functions are relatively single. Because the surface of the anti-rust paper absorbs moisture and oil Such defects reduce the effect of anti-rust packaging, and cannot be completely sealed, affecting the anti-rust function of the product
Composite woven fabric also has the problem of condensation on the surface of the steel coil due to temperature differences, which may easily cause rust or discoloration of the steel coil

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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  • Protective and rustproof packaging material for condensation-proof steel coil and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The production method of protection and antirust packaging material for anti-condensation steel coil of the present invention is as follows:

[0023] 1. Polyolefin layer: It is made by mixing low-density polyethylene (LDPE) and gas phase corrosion inhibitor. The mass percent content of the LDPE component is 98%, and the mass percent content of the vapor phase corrosion inhibitor component is 2%.

[0024] In this embodiment, the gas phase corrosion inhibitor is benzotriazole.

[0025] 2. Production of wood pulp spunlace non-woven fabric layer: After mixing wood pulp fiber and polyester fiber, it is produced by continuous one-step process of high temperature melting, spinning, laying, and hot pressing. The polyester fiber component in the raw material The mass percentage is 80%, and the mass percentage of the wood pulp fiber component is 20%.

[0026] 3. Production of polyolefin woven fabric layer: It is made of matrix resin high-density polyethylene (HDPE) and anti-agi...

Embodiment 2

[0030] The production method of protection and antirust packaging material for anti-condensation steel coil of the present invention is as follows:

[0031] 1. Polyolefin layer: It is made by mixing EVA and gas phase corrosion inhibitor. The mass percent content of the EVA component is 95%, and the mass percent content of the vapor phase corrosion inhibitor component is 5%.

[0032] The vapor phase corrosion inhibitors in this example are benzotriazole derivatives (2%) and benzoate (3%).

[0033] 2. Production of wood pulp spunlace non-woven fabric layer: After mixing wood pulp fiber and polypropylene fiber, it is produced by continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing. The polypropylene fiber component in the raw material The mass percentage is 90%, and the mass percentage of the wood pulp fiber component is 10%.

[0034] 3. Production of polyolefin woven fabric layer: It is made of matrix resin high-density polyethylene (HDPE...

Embodiment 3

[0038] The production method of protection and antirust packaging material for anti-condensation steel coil of the present invention is as follows:

[0039] 1. Polyolefin layer: It is made by mixing PP and gas phase corrosion inhibitor. The mass percent content of the PP component is 92%, and the mass percent content of the vapor phase corrosion inhibitor component is 8%.

[0040] The vapor phase corrosion inhibitors in this example are imidazole (5%) and sodium nitrite (3%).

[0041] 2. Production of wood pulp spunlace non-woven fabric layer: After mixing wood pulp fiber and polypropylene fiber, it is produced by continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing. The polypropylene fiber component in the raw material The mass percentage is 70%, and the mass percentage of the wood pulp fiber component is 30%.

[0042]3. Production of polyolefin woven fabric layer: It is made of matrix resin high-density polyethylene (HDPE) and anti-ag...

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

The invention discloses a protective and rustproof packaging material for a condensation-proof steel coil and a production method thereof, belonging to the technical field of a packaging material and a production method thereof. The packaging material is formed by the compounding of four layers which comprise a wood pulp spunlace non-woven fabric layer for providing condensation-proof and buffering effects, a polyolefin layer for providing a gas-phase rustproof function and an adhering effect, a polyolefin knitted fabric layer for providing high strength and a low-density polyethylene layer for providing water stopping and anti-aging effects from inside to outside in sequence. The production method comprises the following steps: firstly, compounding the polyolefin knitted fabric layer with the low-density polyethylene layer; adhering the compounded knitted fabric layer and the wood pulp spunlace non-woven fabric layer by the polyolefin layer to obtain the protective and rustproof packaging material for the condensation-proof steel coil. The novel protective and rustproof packaging material for the condensation-proof steel coil prepared by the method provided by the invention is a skin packaging material which integrates anti-aging, condensation-proof and gas-phase rustproof technologies.

Description

technical field [0001] The invention relates to the technical field of packaging materials and production methods, in particular to a protective and antirust packaging material for anti-condensation steel coils and a production method. Background technique [0002] At present, there is no suitable packaging material for the storage and packaging of metallurgical steel coils. Although fabric-reinforced antirust paper or composite woven cloth and other packaging materials are used, there are obvious deficiencies, and the functions are relatively single. Because the surface of the antirust paper absorbs moisture and oil Such defects reduce the effect of anti-rust packaging, and cannot be completely sealed, which affects the anti-rust function of the product. The composite woven fabric also has the problem of condensation on the surface of the steel coil due to temperature difference, which may easily cause the problem of rust or discoloration of the steel coil. Contents of 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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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/32B32B27/18B32B37/15B65D65/40
Inventor 孙凯
Owner 沈阳防锈包装材料有限责任公司
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