CN103507342A - Protective and rustproof packaging material for condensation-proof steel coil and production method thereof - Google Patents
Protective and rustproof packaging material for condensation-proof steel coil and production method thereof Download PDFInfo
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- CN103507342A CN103507342A CN201210216075.4A CN201210216075A CN103507342A CN 103507342 A CN103507342 A CN 103507342A CN 201210216075 A CN201210216075 A CN 201210216075A CN 103507342 A CN103507342 A CN 103507342A
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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
The present invention relates to packaging material and production method technical field, be specifically related to the protection for coil of strip of a kind of condensation-proof, rustproof packaging material and production method.
Background technology
At present, the preservation and packaging of metallurgical coil of strip does not have suitable packaging material, although strengthen the packaging material such as anti-tarnish paper or composite braided fabric with fabric, but all exist significantly not enough, function is all more single, because the defects such as the anti-tarnish paper surface moisture absorption, oil suction reduce rust prevention packaging effect, and can not be completely airtight, the antirust function of product affected.Composite braided fabric exists again because the temperature difference causes coil of strip surface condensation problem, easily causes coil of strip to get rusty or discoloration problem.
Summary of the invention
The object of this invention is to provide a kind of multi-functional compound antirust packaging material and production method thereof, adopting protection for novel condensation-proof coil of strip, rustproof packaging material prepared by the method is the skin packaging material that integrates anti-aging, condensation-proof, vapor phase inhibitor technology.
For achieving the above object, technical solution of the present invention is as follows:
Protection for coil of strip, a rustproof packaging material, these packaging material are composited by four layers, are followed successively by from the inside to the outside: the wood pulp spunlace non-woven cloth layer of condensate water-proof and cushioning effect is provided, and nonwoven is quantitatively 25-80g/m
2; The polyolefin layer of gaseous phase antirust function and cementation is provided, and is quantitatively 10-35g/m
2; High-intensity woven polyolefine layer of cloth is provided, and woven cloth is quantitatively 30-100g/m
2; The low density polyethylene layer that intercepts water and anti-aging effect is provided, and is quantitatively 10-35g/m
2.
Described polyolefin layer comprises matrix resin and vapour phase inhibitor, and described matrix resin is a kind of in low density polyethylene (LDPE) (LDPE), PP and EVA, and its component quality percentage composition is 90-98%; Described vapour phase inhibitor component quality percentage composition is 2-10%.
One or more in 124 Triazole, 124 Triazole derivative, imidazoles, imidazolines, acylate, inorganic acid salt of described vapour phase inhibitor mix; Described acylate is benzoate, stearate, cinnamate or acetate, and described inorganic acid salt is nitrite, molybdate or carbonate; Vapour phase inhibitor form is powder, liquid or master batch.
Described polyolefin layer also can not add the corrosion inhibiter that suppresses metal erosion, only plays iris action and cementation.
Described wood pulp spunlace non-woven cloth layer, after being mixed by wood pulp cellulose and polyester fiber, through high-temperature fusion, spray silk, paving guiding principle, hot pressing, batch continuous one-step and produce, described polyester fiber is one or both mixing in polyster fibre or polypropylene fiber, and in processing raw material, its component quality percentage composition is 50-90%; The component quality percentage composition of described wood pulp cellulose in processing raw material is 10-50%.
Described woven polyolefine layer of cloth, by matrix resin high density polyethylene (HDPE) (HDPE) and antiaging agent mix by extruding, broken silk, stretching, curling, weave and form; Described high density polyethylene (HDPE) (HDPE) component quality percentage composition is 95-99%; Described antiaging agent is hindered amine light stabilizer (UV agent), and its component quality percentage composition is 1-5%.
Its material of described low density polyethylene layer is low density polyethylene, antiaging agent and master batch; Wherein, described low density polyethylene (LDPE) (LDPE) component quality percentage composition is 90-95%; Described antiaging agent is hindered amine light stabilizer (UV agent), and its component quality percentage composition is 2-5%, and its component quality percentage composition of described master batch is 3-5%; Described master batch is one or more in the functional agglomerates such as Masterbatch, plasticizing mother particle, anti-oxidant aging master batch, antistatic master granule.
The production method of protection for above-mentioned condensation-proof coil of strip, rustproof packaging material, the method is first compound by woven polyolefine layer of cloth and low density polyethylene layer, and base fabric and water thorn Wood pulp non-woven fabrics layer after then compound carry out protection for bonding acquisition condensation-proof coil of strip, rustproof packaging material by polyolefin layer.Described polyolefin layer is extruded by extruding complex method, and polyolefin layer form is that full compound, strip is compound or the mode of its combination; Described low density polyethylene layer employing is extruded complex method and directly on base fabric surface, is carried out curtain coating production.
The present invention is characterized in to introduce the wood pulp spunlace non-woven cloth that water imbibition is stronger packs condensation problem design of material and selects as solving; Another feature of the present invention is successfully in polyolefin layer, to add vapor phase inhibitor, utilizes to extrude composite co-extruding technique and wood pulp spunlace non-woven cloth and extrude and be combined with each other; Utilize simultaneously and in woven cloth and LDPE film, add hindered amines age resister and play anti-aging effect, guarantee to deposit more than 2 years outside packer's bay.
The present invention has following beneficial effect:
1, the present invention utilizes the water absorption character of wood pulp spunlace non-woven cloth, has solved in the past rust prevention packaging product and has produced because storing, in transportation the metal erosion problem that condensation phenomenon causes.
2, the present invention adopts high strength woven cloth as main matrix material, makes steel roll package can accomplish skin packaging, increases the protectiveness of material.
3, tack coat of the present invention adopts in polyolefin and sneaks into vapour phase inhibitor mode, utilizes the gas permeability of wood pulp spunlace non-woven cloth, unidirectional to the volatilization of coil of strip surface, plays rust inhibition.
4, the outdoor protection that the interpolation of hindered amines antiaging agent of the present invention can guarantee product of the present invention is more than 2 years.
Accompanying drawing explanation
Fig. 1 is protection for condensation-proof coil of strip of the present invention, rustproof packaging material structural representation.Wherein, 1 is wood pulp spunlace non-woven cloth layer; 2 is polyolefin layer; 3 is woven polyolefine layer of cloth; 4 is low density polyethylene layer.
The specific embodiment:
As shown in Figure 1, protection for condensation-proof coil of strip of the present invention, rustproof packaging material are composited by four layers, are followed successively by from the inside to the outside: the wood pulp spunlace non-woven cloth layer 1 of condensate water-proof and cushioning effect is provided, and nonwoven is quantitatively 25-80g/m
2; The polyolefin layer 2 of gaseous phase antirust function and cementation is provided, and is quantitatively 10-35g/m
2; High-intensity woven polyolefine layer of cloth 3 is provided, and woven cloth is quantitatively 30-100g/m
2; The low density polyethylene layer 4 that intercepts water and anti-aging effect is provided, and is quantitatively 10-35g/m
2.
The production method of protection for condensation-proof coil of strip of the present invention, rustproof packaging material, specific as follows:
1, polyolefin layer: mixed by low density polyethylene (LDPE) (LDPE) and vapour phase inhibitor.LDPE component quality percentage composition 98%, vapour phase inhibitor component quality percentage composition is 2%.
In the present embodiment, vapour phase inhibitor is 124 Triazole.
2, the production of wood pulp spunlace non-woven cloth layer: by after wood pulp cellulose and polyster fibre mixing, through high-temperature fusion, spray silk, paving guiding principle, hot pressing, batch continuous one-step and produce, in raw material, polyster fibre component quality percentage composition is 80%, and wood pulp cellulose component quality percentage composition is 20%.
3, the production of woven polyolefine layer of cloth: by matrix resin high density polyethylene (HDPE) (HDPE) and antiaging agent mix by extruding, broken silk, stretching, curling, weave and form; HDPE component quality percentage composition is 95%; Described antiaging agent is hindered amine light stabilizer (UV agent), its component quality percentage composition 5%.
4, low density polyethylene layer: mixed by low density polyethylene, antiaging agent and antistatic master granule; LDPE component quality percentage composition is 92%; Antiaging agent is hindered amine light stabilizer (UV agent), and component quality percentage composition is 3%, and antistatic master granule component quality percentage composition is 5%.
5, the production of protection, rustproof packaging material for condensation-proof coil of strip: employing is extruded complex method low density polyethylene layer is directly carried out to curtain coating production on base fabric surface, make the two compound, base fabric and water thorn Wood pulp non-woven fabrics layer after then compound carry out protection for bonding acquisition condensation-proof coil of strip, rustproof packaging material by polyolefin layer.After polyolefin layer each component mixes, by extruding complex method, extrude, polyolefin layer form for full compound.
The production method of protection for condensation-proof coil of strip of the present invention, rustproof packaging material, specific as follows:
1, polyolefin layer: mixed by EVA and vapour phase inhibitor.EVA component quality percentage composition 95%, vapour phase inhibitor component quality percentage composition is 5%.
In the present embodiment, vapour phase inhibitor is 124 Triazole derivative (2%) and benzoate (3%).
2, the production of wood pulp spunlace non-woven cloth layer: by after wood pulp cellulose and polypropylene fiber mixing, through high-temperature fusion, spray silk, paving guiding principle, hot pressing, batch continuous one-step and produce, in raw material, polypropylene fiber component quality percentage composition is 90%, and wood pulp cellulose component quality percentage composition is 10%.
3, the production of woven polyolefine layer of cloth: by matrix resin high density polyethylene (HDPE) (HDPE) and antiaging agent mix by extruding, broken silk, stretching, curling, weave and form; HDPE component quality percentage composition is 98%; Antiaging agent is hindered amine light stabilizer (UV agent), its component quality percentage composition 2%.
4, low density polyethylene layer: mixed by low density polyethylene, antiaging agent and Masterbatch; LDPE component quality percentage composition is 90%; Antiaging agent is hindered amine light stabilizer (UV agent), and component quality percentage composition is 5%, and Masterbatch component quality percentage composition is 5%.
5, the production of protection, rustproof packaging material for condensation-proof coil of strip: employing is extruded complex method low density polyethylene layer is directly carried out to curtain coating production on base fabric surface, make the two compound, base fabric and water thorn Wood pulp non-woven fabrics layer after then compound carry out protection for bonding acquisition condensation-proof coil of strip, rustproof packaging material by polyolefin layer.Polyolefin layer each component is extruded by extruding complex method after mixing, and polyolefin layer form is strip complex method.
The production method of protection for condensation-proof coil of strip of the present invention, rustproof packaging material, specific as follows:
1, polyolefin layer: mixed by PP and vapour phase inhibitor.PP component quality percentage composition 92%, vapour phase inhibitor component quality percentage composition is 8%.
In the present embodiment, vapour phase inhibitor is imidazoles (5%) and natrium nitrosum (3%).
2, the production of wood pulp spunlace non-woven cloth layer: by after wood pulp cellulose and polypropylene fiber mixing, through high-temperature fusion, spray silk, paving guiding principle, hot pressing, batch continuous one-step and produce, in raw material, polypropylene fiber component quality percentage composition is 70%, and wood pulp cellulose component quality percentage composition is 30%.
3, the production of woven polyolefine layer of cloth: by matrix resin high density polyethylene (HDPE) (HDPE) and antiaging agent mix by extruding, broken silk, stretching, curling, weave and form; HDPE component quality percentage composition is 99%; Antiaging agent is hindered amine light stabilizer (UV agent), its component quality percentage composition 1%.
4, low density polyethylene layer: mixed by low density polyethylene, antiaging agent and plasticizing mother particle; LDPE component quality percentage composition is 95%; Antiaging agent is hindered amine light stabilizer (UV agent), and component quality percentage composition is 3%, and plasticizing mother particle component quality percentage composition is 2%.
5, the production of protection, rustproof packaging material for condensation-proof coil of strip: employing is extruded complex method low density polyethylene layer is directly carried out to curtain coating production on base fabric surface, make the two compound, base fabric and water thorn Wood pulp non-woven fabrics layer after then compound carry out protection for bonding acquisition condensation-proof coil of strip, rustproof packaging material by polyolefin layer.Polyolefin layer each component is extruded by extruding complex method after mixing, and polyolefin layer form is strip complex method.
The production method of protection for condensation-proof coil of strip of the present invention, rustproof packaging material, difference from Example 1 is, only contains low density polyethylene (LDPE) (LDPE) in polyolefin layer, does not add vapour phase inhibitor, this layer only plays iris action and cementation.
Claims (10)
1. protection for condensation-proof coil of strip, a rustproof packaging material, is characterized in that: these packaging material are composited by four layers, are followed successively by from the inside to the outside: the wood pulp spunlace non-woven cloth layer of condensate water-proof and cushioning effect is provided, and nonwoven is quantitatively 25-80g/m
2; The polyolefin layer of gaseous phase antirust function and cementation is provided, and is quantitatively 10-35g/m
2; High-intensity woven polyolefine layer of cloth is provided, and woven cloth is quantitatively 30-100g/m
2; The low density polyethylene layer that intercepts water and anti-aging effect is provided, and is quantitatively 10-35g/m
2.
2. condensation-proof coil of strip according to claim 1 protection, rustproof packaging material, it is characterized in that: described polyolefin layer comprises matrix resin and vapour phase inhibitor, described matrix resin is a kind of in LDPE, PP and EVA, and its component quality percentage composition is 90-98%; Described vapour phase inhibitor component quality percentage composition is 2-10%.
3. protection for condensation-proof coil of strip according to claim 2, rustproof packaging material, is characterized in that: one or more in 124 Triazole, 124 Triazole derivative, imidazoles, imidazolines, acylate, inorganic acid salt of described vapour phase inhibitor mix; Described acylate is benzoate, stearate, cinnamate or acetate, and described inorganic acid salt is nitrite, molybdate or carbonate; Vapour phase inhibitor form is powder, liquid or master batch.
4. protection for condensation-proof coil of strip according to claim 1, rustproof packaging material, is characterized in that: described polyolefin layer is a kind of in LDPE, PP and EVA.
5. condensation-proof coil of strip according to claim 1 protection, rustproof packaging material, it is characterized in that: described wood pulp spunlace non-woven cloth layer,, after being mixed by wood pulp cellulose and polyester fiber, through high-temperature fusion, spray silk, paving guiding principle, hot pressing, to batch continuous one-step and produce; Described polyester fiber is one or both mixing in polyster fibre or polypropylene fiber, and in processing raw material, its component quality percentage composition is 50-90%; The component quality percentage composition of described wood pulp cellulose in processing raw material is 10-50%.
6. protection for condensation-proof coil of strip according to claim 1, rustproof packaging material, is characterized in that: described woven polyolefine layer of cloth, by HDPE and antiaging agent mix by extruding, broken silk, stretching, curling, weave and form; Described HDPE component quality percentage composition is 95-99%; Described antiaging agent is hindered amine light stabilizer, and its component quality percentage composition is 1-5%.
7. protection for condensation-proof coil of strip according to claim 1, rustproof packaging material, is characterized in that: its material of described low density polyethylene layer is LDPE, antiaging agent and master batch; Wherein, described LDPE component quality percentage composition is 90-95%; Described antiaging agent is hindered amine light stabilizer, and its component quality percentage composition is 2-5%, and its component quality percentage composition of described master batch is 3-5%; Described master batch is one or more in Masterbatch, plasticizing mother particle, anti-oxidant aging master batch, antistatic master granule.
8. the production method of a protection for the condensation-proof coil of strip as described in as arbitrary in claim 1-7, rustproof packaging material, it is characterized in that: the method is first compound by woven polyolefine layer of cloth and low density polyethylene layer, base fabric and wood pulp spunlace non-woven cloth layer after then compound carry out protection for bonding acquisition condensation-proof coil of strip, rustproof packaging material by polyolefin layer.
9. the production method of protection for condensation-proof coil of strip according to claim 8, rustproof packaging material, is characterized in that: described polyolefin layer is extruded by extruding complex method, and polyolefin layer form is that full compound, strip is compound or the mode of its combination.
10. the production method of protection for condensation-proof coil of strip according to claim 8, rustproof packaging material, is characterized in that: described low density polyethylene layer employing is extruded complex method and directly on base fabric surface, carried out curtain coating production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210216075.4A CN103507342A (en) | 2012-06-27 | 2012-06-27 | Protective and rustproof packaging material for condensation-proof steel coil and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210216075.4A CN103507342A (en) | 2012-06-27 | 2012-06-27 | Protective and rustproof packaging material for condensation-proof steel coil and production method thereof |
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| CN103507342A true CN103507342A (en) | 2014-01-15 |
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| CN201210216075.4A Pending CN103507342A (en) | 2012-06-27 | 2012-06-27 | Protective and rustproof packaging material for condensation-proof steel coil and production method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656690A (en) * | 2018-07-23 | 2018-10-16 | 沈阳丰禾包装有限公司 | A kind of high-intensity fiber composite plate structure |
| CN110284141A (en) * | 2019-07-11 | 2019-09-27 | 中电保力（北京）科技有限公司 | A kind of gas phase corrosion inhibitor and the sustained release gas phase resistance tranish film box comprising it |
| CN111605852A (en) * | 2020-05-28 | 2020-09-01 | 苏州梅克兰包装材料有限公司 | Recyclable loading box and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5491017A (en) * | 1994-10-14 | 1996-02-13 | Transhield, Inc. | Shrink wrap material and method for protecting articles |
| US5736231A (en) * | 1995-09-08 | 1998-04-07 | Transhield Technology Co., Llc | Protective wrap with additive delivery system |
| US20020001683A1 (en) * | 2000-04-26 | 2002-01-03 | Dutton Robert R. | Enhanced anti-corrosive protective coverings and methods of use |
| CN2725342Y (en) * | 2004-09-21 | 2005-09-14 | 沈阳防锈包装材料有限责任公司 | Compound rust proof cloth |
| CN1760026A (en) * | 2005-09-02 | 2006-04-19 | 沈阳防锈包装材料有限责任公司 | Stretchable film for rust proof in gas phase and preparing method |
| CN101717015A (en) * | 2009-11-17 | 2010-06-02 | 沈阳防锈包装材料有限责任公司 | Gas-phase rustproof packaging material and manufacturing method thereof |
| CN202242190U (en) * | 2011-09-06 | 2012-05-30 | 沈阳防锈包装材料有限责任公司 | Compound antirust packaging material |
| CN202986248U (en) * | 2012-06-27 | 2013-06-12 | 沈阳防锈包装材料有限责任公司 | Protective and antirust packaging material for condensation-preventing steel coil |
-
2012
- 2012-06-27 CN CN201210216075.4A patent/CN103507342A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5491017A (en) * | 1994-10-14 | 1996-02-13 | Transhield, Inc. | Shrink wrap material and method for protecting articles |
| US5736231A (en) * | 1995-09-08 | 1998-04-07 | Transhield Technology Co., Llc | Protective wrap with additive delivery system |
| US20020001683A1 (en) * | 2000-04-26 | 2002-01-03 | Dutton Robert R. | Enhanced anti-corrosive protective coverings and methods of use |
| CN2725342Y (en) * | 2004-09-21 | 2005-09-14 | 沈阳防锈包装材料有限责任公司 | Compound rust proof cloth |
| CN1760026A (en) * | 2005-09-02 | 2006-04-19 | 沈阳防锈包装材料有限责任公司 | Stretchable film for rust proof in gas phase and preparing method |
| CN101717015A (en) * | 2009-11-17 | 2010-06-02 | 沈阳防锈包装材料有限责任公司 | Gas-phase rustproof packaging material and manufacturing method thereof |
| CN202242190U (en) * | 2011-09-06 | 2012-05-30 | 沈阳防锈包装材料有限责任公司 | Compound antirust packaging material |
| CN202986248U (en) * | 2012-06-27 | 2013-06-12 | 沈阳防锈包装材料有限责任公司 | Protective and antirust packaging material for condensation-preventing steel coil |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656690A (en) * | 2018-07-23 | 2018-10-16 | 沈阳丰禾包装有限公司 | A kind of high-intensity fiber composite plate structure |
| CN108656690B (en) * | 2018-07-23 | 2024-05-28 | 沈阳丰禾包装有限公司 | High-strength fiber composite board structure |
| CN110284141A (en) * | 2019-07-11 | 2019-09-27 | 中电保力（北京）科技有限公司 | A kind of gas phase corrosion inhibitor and the sustained release gas phase resistance tranish film box comprising it |
| CN110284141B (en) * | 2019-07-11 | 2021-01-26 | 中电保力（北京）科技有限公司 | Gas phase rust inhibitor and slow-release gas phase rust-inhibiting capsule containing same |
| CN111605852A (en) * | 2020-05-28 | 2020-09-01 | 苏州梅克兰包装材料有限公司 | Recyclable loading box and preparation method thereof |
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Application publication date: 20140115 |