CN210792356U - High-barrier file cabinet dust sealing material - Google Patents
High-barrier file cabinet dust sealing material Download PDFInfo
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- CN210792356U CN210792356U CN201921379046.3U CN201921379046U CN210792356U CN 210792356 U CN210792356 U CN 210792356U CN 201921379046 U CN201921379046 U CN 201921379046U CN 210792356 U CN210792356 U CN 210792356U
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Abstract
The utility model discloses a high resistant separates filing cabinet and seals dirt material includes PVC from top to bottom in proper order and moulds thick liquid I, the PVC of taking the adhesive mould thick liquid I, the dacron machine that excels in weaves, takes the PVC of adhesive to mould thick liquid II, PVC moulds thick liquid layer II, PVDC rete and PVC thin layer, PVC moulds thick liquid I, the PVC of taking the adhesive mould thick liquid I, the dacron machine that excels in weaves, takes the PVC of adhesive to mould thick liquid II, PVC moulds thick liquid layer II and obtains PVC sword knife coating layer cloth after laminating II, PVC sword knife coating layer cloth laminates PVDC rete and PVC thin layer in proper order. The utility model discloses it is good to have high strength, high separation, gas tightness, and has good peel strength, dampproofing feature of environmental protection can.
Description
Technical Field
The utility model relates to a macromolecular material and preparation method thereof, concretely relates to high resistant separates filing cabinet and seals dirt material.
Background
Currently, plastic moisture-proof envelopes are a type of flexible packaging container. The product sealed and stored by envelope is cocoon-relay type cocoon prevention
A novel protective packaging method developed after the protective packaging technology is researched and developed. Cocoon type packaging has more advantages such as light weight, low cost, convenient use and the like, and the application of the technology is a great innovation of modern packaging and sealing technology.
Plastic moisture barrier envelope materials are most used. The material is also various, transparent and opaque, has a single-layer film and also has a multi-layer composite. The materials used at present are the following:
1. polyethylene (PE) films have good moisture barrier properties due to their relatively low moisture permeability. The moisture permeability thereof decreases with increasing thickness. The defects are that the strength is lower, and the weather resistance and the oil resistance are poorer. Generally, about 0.25 mm is used in the library.
2. Compared with PE film, PVC film has poorer low-temperature resistance and higher moisture permeability than PE film, but has the advantages of high strength and good folding resistance. The PVC film envelope material is mostly matched with the extruded PVC zipper to form the reusable envelope.
PVC/textile laminates, which have the disadvantage of a high moisture permeability and a poor oil resistance.
4. Chlorinated Polyethylene (PEC)/polyester fiber laminated material has excellent aging resistance, and the strength of the material is still kept more than 90%. And weaving the outdoor envelope by matching with a transverse PEC zipper.
Besides the four sealing materials described above, there are also PU envelope materials and aluminum-plastic composite materials. The company depends on the production technology of the sealing materials for many years, the PVC and PVDC films are applied to the sealing materials, the technical problem that the PVC films and the PVDC films are not firmly adhered is solved through the adhesion glue and the optimization of the process of the product, and the defect that the PVC films are poor in water-resisting effect is overcome through the adoption of the PVDC. The product has the advantages of reasonable selection of the base material and the laminating adhesive and reasonable laminating process, high strength, water resistance and good air tightness, and is used as a bookcase sealing material with excellent performance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a high resistant separates filing cabinet and seals dirt material is provided, and high resistant separates filing cabinet and seals dirt material have that high strength, high separation, gas tightness are good, and have good peel strength, dampproofing feature for environmental protection can be good.
The utility model provides a technical scheme that technical problem adopted is: the utility model provides a high resistant separates filing cabinet seals dirt material, from top to bottom includes PVC in proper order and moulds thick liquid I, takes the PVC of adhesive to mould thick liquid I, the dacron machine that excels in weaves, takes the PVC of adhesive to mould thick liquid II, PVC moulds thick liquid layer II, PVDC rete and PVC thin layer, PVC moulds thick liquid I, takes the PVC of adhesive to mould thick liquid I, the dacron machine that excels in weaves, takes the PVC of adhesive to mould thick liquid II, PVC moulds thick liquid layer II and obtains PVC sword knife coating cloth after laminating, PVC sword knife coating cloth laminates PVDC rete and PVC thin layer in proper order.
Preferably, the PVC plastic pulp layer I, the PVC plastic pulp layer II and the PVC film layer respectively comprise PVC resin, a plasticizer, a stabilizer, a flame retardant and pigment.
Preferably, the pigment in the PVC plastic pulp layer I and the PVC plastic pulp layer II is yellow, the flame retardant is a mixture of antimony trioxide and aluminum hydroxide, and the content of the flame retardant is 9-10% of the weight of the PVC resin.
Preferably, the adhesive in the PVC plastic paste I with the adhesive and the adhesive in the PVC plastic paste II with the adhesive is isocyanate, and the content of the adhesive is 3.3% of the weight of the PVC resin.
Preferably, the PVDC film layer is coated with water-based glue on two sides, and the water-based glue is polyurethane water-based two-component glue.
A preparation method of the dust sealing material for the high-barrier file cabinet comprises the following steps,
a: preparing a PVC film layer by adopting a calendering method;
b: coating polyurethane aqueous two-component glue on two sides of the PVDC film to obtain a PVDC film layer;
c: respectively coating PVC plastic slurry I with an adhesive and PVC plastic slurry II with the adhesive on the front and back surfaces of the high-strength polyester woven fabric through a vertical primary coating method by adopting a knife-blade coating method, coating the PVC plastic slurry I and the PVC plastic slurry II with the adhesive again, drying and plasticizing, and cooling to room temperature to obtain PVC knife-blade coating cloth;
d: and (c) simultaneously preheating the PVC film layer obtained in the step (a), the PVDC film layer obtained in the step (b) and the PVC knife blade coating cloth obtained in the step (c), then enabling the surface of one PVDC film layer coated with the two-component waterborne polyurethane glue to be in contact with the PVC knife blade coating cloth, enabling the other surface of the PVDC film layer coated with the two-component waterborne polyurethane glue to be in contact with the PVC film layer, directly carrying out high-temperature heat sealing on the PVC knife blade coating cloth, the PVDC film layer and the PVC film layer, and cooling to room temperature to obtain the high-barrier file cabinet dust sealing material.
Preferably, the temperature of the glue coating in the step b is 60-85 ℃; in the step c, the coating temperature is 175-185 ℃; and d, enabling the temperature of the large attaching wheel to be 167-173 ℃, and enabling the PVC knife to scrape the coating cloth, the PVDC film layer and the PVC film layer to enter the attaching pressure wheel at the same time at the same speed.
Preferably, the thickness of the PVC film layer prepared in the step a is 0.05-0.07 mm; the thickness of the PVDC film layer in the step b is 0.02-0.03 mm; the thickness of the PVC plastic paste I with the adhesive and the thickness of the PVC plastic paste II with the adhesive in the step c are 0.04-0.06 mm; the thickness of the second PVC plastic coating layer I and the thickness of the second PVC plastic coating layer II are 0.04-0.06 mm.
Preferably, the step of preparing the PVC film layer by the calendering method in the step a comprises: uniformly mixing PVC resin, a plasticizer, a stabilizer and a flame retardant, and then heating, calendaring, forming and cooling in a calendar to form the PVC film layer; in the step c, the step of preparing the PVC plastic paste I with the adhesive and the PVC plastic paste II with the adhesive by a knife coating method comprises the following steps: uniformly mixing PVC resin, a stabilizer, a plasticizer, a flame retardant, a mildew preventive, an adhesive and pigment, putting the mixture into a material storage tank of a machine, allowing high-strength polyester woven fabric to pass through the material storage tank, scraping a layer of PVC plastic slurry I with the adhesive and a layer of PVC plastic slurry II with the adhesive by a knife, and allowing the high-strength polyester woven fabric to enter an oven for drying and plasticizing to form woven fabric coated with the PVC plastic slurry I with the adhesive and the PVC plastic slurry II with the adhesive; in the step c, the step of preparing the PVC plastic slurry layer I and the PVC plastic slurry layer II by the knife coating method comprises the following steps: uniformly mixing PVC resin, a stabilizer, a plasticizer, a flame retardant, a mildew preventive and pigment, putting the mixture into a material storage tank of a machine, coating PVC plastic slurry I with an adhesive and woven fabric with PVC plastic slurry II with the adhesive, passing the woven fabric through the material storage tank, scraping a layer of PVC plastic slurry I and a layer of PVC plastic slurry II with a knife, feeding the woven fabric into an oven, drying and plasticizing the woven fabric, and cooling the woven fabric to form the coated fabric.
The utility model discloses a focus is on how to reach the requirement of high brute force, dampproofing, dustproof etc. of product. In the aspects of moisture insulation and water isolation, the high-barrier film PVDC film is selected on the basis of the PVC film, so that the barrier effect of the product is further improved. The bonding fastness of the PVC film and the PVDC film is always the problem to be solved urgently by the sealing material process, the product starts from the aspects of optimizing the attaching process and the like by coating the water-based adhesive on two sides, and the problem that the films are easy to peel is solved. In the aspect of product strength, the high-strength characteristic of the product is realized by optimizing woven cloth and by optimizing a PVC (polyvinyl chloride) knife scraping process.
The utility model has the advantages that compared with the common dust sealing material, the high-barrier file cabinet dust sealing material has high strength and high barrier performance to water, vapor, dust and the like. The air permeability, hydrostatic pressure, peeling strength, tensile load, breaking strength, breaking elongation and other performances of the composite material are better. In the aspects of moisture insulation and water isolation, a high-barrier film PVDC film is selected on the basis of a PVC film, so that the barrier effect of the product is further improved. The product is formed by coating water-based adhesive on two sides, the laminating process is optimized, and the problem that films are easy to peel is solved. In the aspect of product strength, the high-strength characteristic of the product is realized by optimizing woven cloth and a PVC (polyvinyl chloride) knife scraping process. The product has excellent performance and reliable quality, and is widely praised by customers.
The utility model discloses process optimization, the high resistant separates filing cabinet that separates seals dirt material of preparation have high strength, high separation, the gas tightness is good, and have good peel strength, dampproofing feature for environmental protection can be good.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
The present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The PVC plastic slurry layer I1, the PVC plastic slurry layer II 5 and the PVC film layer 7 respectively comprise PVC resin, a plasticizer, a stabilizer, a flame retardant and pigment.
The pigment in the PVC plastic pulp layer I1 and the PVC plastic pulp layer II 5 is yellow, the flame retardant is a mixture of antimony trioxide and aluminum hydroxide, and the content of the flame retardant is 9% of the weight of the PVC resin.
The PVC plastic paste I2 with the adhesive and the PVC plastic paste II 4 with the adhesive are made of isocyanate, and the content of the adhesive is 3.3% of the weight of the PVC resin.
The PVDC film layer 6 is coated with water-based glue on two sides, and the water-based glue is polyurethane water-based two-component glue.
Example 2: a preparation method of a high-barrier file cabinet dust sealing material comprises the following steps,
a: preparing a PVC film layer 7 by adopting a calendering method; uniformly mixing PVC resin, a plasticizer, a stabilizer and a flame retardant, heating, calendaring, forming and cooling in a calendar to form the PVC film layer 7; the thickness of the PVC film layer 7 is 0.06 mm;
b: coating polyurethane aqueous two-component glue on two sides of the PVDC film to obtain a PVDC film layer 6; wherein the temperature of the coating glue is 65 ℃; the thickness of the PVDC film layer 6 is 0.02 mm;
c: respectively coating PVC plastic slurry I2 with an adhesive and PVC plastic slurry II 4 with the adhesive on the front and back surfaces of the high-strength polyester woven fabric 3 through vertical primary coating by adopting a knife blade coating method, coating a PVC plastic slurry layer I1 and a PVC plastic slurry layer II 5 again, drying and plasticizing, and cooling to room temperature to obtain PVC knife blade coating cloth; wherein the coating temperature is 180 ℃; in the step d, the temperature of the laminating large wheel is 170 ℃, the PVC knife blade coating cloth, the PVDC film layer 6 and the PVC film layer 7 enter the laminating pressure wheel at the same time, and the speed is the same; the thickness of the PVC plastic paste I2 with the adhesive and the thickness of the PVC plastic paste II 4 with the adhesive are 0.05 mm; the thickness of the second PVC plastic coating layer I1 and the thickness of the second PVC plastic coating layer II 5 are 0.05 mm.
d: and (c) preheating the PVC film layer 7 obtained in the step (a), the PVDC film layer 6 obtained in the step (b) and the PVC knife blade coating cloth obtained in the step (c) simultaneously, then enabling the surface of one PVDC film layer 6 coated with the double-component waterborne polyurethane glue to be in contact with the PVC knife blade coating cloth, enabling the surface of the other PVDC film layer 6 coated with the double-component waterborne polyurethane glue to be in contact with the PVC film layer 7, directly carrying out high-temperature heat sealing on the PVC knife blade coating cloth, the PVDC film layer 6 and the PVC film layer 7, and cooling to room temperature to obtain the high-barrier file cabinet dust sealing material.
Wherein, the step of preparing the PVC plastic paste I2 with the adhesive and the PVC plastic paste II (4) with the adhesive by the knife coating method in the step c comprises the following steps: uniformly mixing PVC resin, a stabilizer, a plasticizer, a flame retardant, an anti-mildew agent, an adhesive and pigment, putting the mixture into a material storage tank of a machine, scraping a layer of PVC plastic pulp I2 with the adhesive and a layer of PVC plastic pulp II 4 with the adhesive by a knife after passing through the material storage tank for the high-strength polyester woven fabric 3, and putting the mixture into an oven for drying and plasticizing to form woven fabrics coated with the PVC plastic pulp I2 with the adhesive and the PVC plastic pulp II 4 with the adhesive; in the step c, the step of preparing the PVC plastic slurry layer I1 and the PVC plastic slurry layer II 5 by the knife coating method comprises the following steps: PVC resin, a stabilizer, a plasticizer, a flame retardant, a mildew preventive and pigment are uniformly mixed and then are placed into a material storage tank of a machine, the machine woven cloth coated with PVC plastic slurry I2 with adhesive and PVC plastic slurry II 4 with adhesive passes through the material storage tank, a PVC plastic slurry layer I1 and a PVC plastic slurry layer II 5 are scraped by a knife, the machine woven cloth enters an oven for drying and plasticizing, and the coating cloth is formed after cooling.
The utility model has the main characteristics as follows: 1. the PVDC film is preferably used as a middle barrier material, so that the product can block water vapor and reduce the humidity of a use place; 2. the 250D multiplied by 250D and 36 multiplied by 36 (root/inch) woven fabrics are used as the base cloth of the knife scraping film material, so that the product has high performance and the durability of use is ensured; and 3, water-based adhesive is coated on two sides of the PVDC, so that the problem of infirm adhesion of the PVDC and the PVC is solved, and the environment friendliness of the production process is guaranteed by adopting the water-based adhesive.
The utility model discloses a performance index and the practical application requirement that test with internal like product, it is very special
The product can meet the requirements of customers according to specific performance indexes such as air permeability, hydrostatic pressure, peeling strength, tensile load, breaking strength, breaking elongation and the like.
The utility model discloses main technical index is as follows:
1. air permeability (%): less than or equal to 1.0;
2. hydrostatic pressure (cmH 2O): not less than 1800;
3. peeling strength (N/5 cm): peeling in the whole process cannot be realized;
4. breaking strength (N): the warp direction is more than or equal to 900; the weft direction is more than or equal to 1000;
5. elongation at break (%): the warp direction is more than or equal to 15.0; the weft direction is more than or equal to 20.0.
Claims (2)
1. The high-barrier dust sealing material for the file cabinet is characterized by sequentially comprising a PVC plastic slurry layer I (1), a PVC plastic slurry layer I (2) with an adhesive, a high-strength polyester woven fabric (3), a PVC plastic slurry layer II (4) with an adhesive, a PVC plastic slurry layer II (5), a PVDC film layer (6) and a PVC thin film layer (7) from top to bottom, wherein the PVC plastic slurry layer I (1), the PVC plastic slurry layer I (2) with an adhesive, the high-strength polyester woven fabric (3), the PVC plastic slurry layer II (4) with an adhesive and the PVC plastic slurry layer II (5) are laminated to obtain a PVC knife blade coating cloth, and the PVC knife blade coating cloth is sequentially laminated with the PVDC film layer (6) and the PVC thin film layer (7).
2. The high-barrier file cabinet dust sealing material according to claim 1, wherein the PVDC film layer (6) is coated with a water-based adhesive on both sides, and the water-based adhesive is polyurethane water-based two-component adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921379046.3U CN210792356U (en) | 2019-08-23 | 2019-08-23 | High-barrier file cabinet dust sealing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921379046.3U CN210792356U (en) | 2019-08-23 | 2019-08-23 | High-barrier file cabinet dust sealing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210792356U true CN210792356U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921379046.3U Active CN210792356U (en) | 2019-08-23 | 2019-08-23 | High-barrier file cabinet dust sealing material |
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| CN (1) | CN210792356U (en) |
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- 2019-08-23 CN CN201921379046.3U patent/CN210792356U/en active Active
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