CN110965344A - Production method of integrally woven gum dipped canvas - Google Patents
Production method of integrally woven gum dipped canvas Download PDFInfo
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- CN110965344A CN110965344A CN201910987352.3A CN201910987352A CN110965344A CN 110965344 A CN110965344 A CN 110965344A CN 201910987352 A CN201910987352 A CN 201910987352A CN 110965344 A CN110965344 A CN 110965344A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000007598 dipping method Methods 0.000 claims abstract description 88
- 238000005470 impregnation Methods 0.000 claims abstract description 39
- 239000004744 fabric Substances 0.000 claims abstract description 36
- 238000002360 preparation method Methods 0.000 claims abstract description 26
- 238000001125 extrusion Methods 0.000 claims abstract description 24
- 238000009941 weaving Methods 0.000 claims abstract description 17
- 229920000728 polyester Polymers 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 13
- 239000004677 Nylon Substances 0.000 claims abstract description 9
- 229920001778 nylon Polymers 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 238000007493 shaping process Methods 0.000 claims abstract description 7
- 239000004816 latex Substances 0.000 claims description 38
- 229920000126 latex Polymers 0.000 claims description 38
- 239000003292 glue Substances 0.000 claims description 30
- 239000002253 acid Substances 0.000 claims description 14
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 claims description 14
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 claims description 13
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000839 emulsion Substances 0.000 claims description 9
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 6
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- ADSOSINJPNKUJK-UHFFFAOYSA-N 2-butylpyridine Chemical group CCCCC1=CC=CC=N1 ADSOSINJPNKUJK-UHFFFAOYSA-N 0.000 claims description 5
- GGAUUQHSCNMCAU-ZXZARUISSA-N (2s,3r)-butane-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)C[C@H](C(O)=O)[C@H](C(O)=O)CC(O)=O GGAUUQHSCNMCAU-ZXZARUISSA-N 0.000 claims description 3
- KGRQSFPCTCOIBL-UHFFFAOYSA-N 1-aminotriazole-4-carboxylic acid Chemical compound NN1C=C(C(O)=O)N=N1 KGRQSFPCTCOIBL-UHFFFAOYSA-N 0.000 claims description 3
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 claims description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical group C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 10
- 239000002585 base Substances 0.000 description 15
- KAKZBPTYRLMSJV-UHFFFAOYSA-N butadiene group Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 8
- 150000001735 carboxylic acids Chemical class 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920006052 Chinlon® Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/10—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with styrene-butadiene copolymerisation products or other synthetic rubbers or elastomers except polyurethanes
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0006—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using woven fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0034—Polyamide fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0036—Polyester fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1664—Releasability
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/04—Belts
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a production method of integrally woven gum dipping canvas, which comprises the following steps: selecting polyester industrial yarns as warps and nylon industrial yarns as wefts, and weaving by adopting an integral weaving method; weaving into base cloth for later use; step two, preparation of a gum dipping solution: the impregnation solution comprises a primary impregnation solution and a secondary impregnation solution, and after the two groups of impregnation solutions are prepared, the two groups of impregnation solutions are uniformly stirred for later use; step three, preparation of gum dipping canvas: and (3) dipping the base cloth in a dipping solution, and then sequentially carrying out filter pressing, dipping extrusion roller extrusion, high-temperature drying, stretching and shaping, cooling and coiling treatment on the base cloth to obtain the dipped canvas. The invention improves the technical problems of low strength, high production cost, low adhesiveness with rubber and the like of the canvas framework material in the prior art, and has the characteristics of high use strength, moderate manufacturing cost, convenient production, good adhesiveness with rubber and the like.
Description
Technical Field
The invention relates to the field of textiles, in particular to a production method of integrally woven gum dipped canvas.
Background
Canvas is a relatively thick cotton or hemp fabric, which was first named for sails. Generally, plain weave is mostly adopted, twill weave is used in a small amount, and multiple strands are used for warp and weft yarns. The canvas is generally divided into two categories of coarse canvas and fine canvas, the coarse canvas is also called as covering cloth, has good waterproof performance, and has the biggest characteristic of being durable and used for covering in automobile transportation and open-air warehouses and building tents in the field. The fine canvas is used for manufacturing labor protection clothes and articles thereof, and can also be used as shoe materials, case and bag fabrics, handbags, backpacks, tablecloths and the like after being dyed or printed. At present, most of common framework materials for manufacturing canvas comprise terylene, chinlon and polyester fibers, and usually the canvas is also used for manufacturing a conveying belt together with a rubber material. However, the common single-layer canvas is generally low in strength, the requirement of a downstream client on a high-strength conveying belt is difficult to meet, the canvas is generally processed in a mode of increasing the number of layers, but the production cost is increased due to the fact that rubber is additionally attached, and the economic benefit is low.
In order to solve the technical problems, the invention improves the process of weaving the framework material, and provides a production method of integrally woven gum-dipped canvas. Meanwhile, the new gum dipping solution is adopted to coat the canvas skeleton, so that the canvas skeleton can be well vulcanized and bonded with rubber materials, and the stripping resistance and the service performance of the conveying belt are improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a production method of integrally woven impregnated canvas, which aims to solve the technical problems of low strength, high production cost, low adhesiveness with rubber and the like of canvas framework materials in the prior art;
in order to solve the technical problems, the invention discloses a production method of integrally woven gum dipped canvas, which comprises the following preparation steps:
step one, preparation of base cloth
Selecting polyester industrial yarns as warps and nylon industrial yarns as wefts, and weaving the warps and the wefts by adopting an integral weaving method; wherein, the warp adopts 8, the weft is divided into 4 rows, and the warp is woven by double layers and weaved into base cloth for standby;
step two, preparation of gum dipping solution
The glue dipping solution comprises a primary glue dipping solution and a secondary glue dipping solution, wherein the primary glue dipping solution is composed of resorcinol, formaldehyde, primary latex and deionized water, and the secondary glue dipping solution is composed of polycarboxylic acid, diphenylmethane diamine, secondary latex and deionized water; after the two groups of gum dipping solutions are prepared, uniformly stirring for later use;
step three, preparation of gum dipping canvas
Firstly, carrying out gum dipping treatment on the base cloth by using a primary gum dipping solution, draining, and then drying; and then carrying out secondary impregnation treatment on the base cloth subjected to the primary impregnation, and sequentially carrying out filter pressing, impregnation extrusion roller extrusion, high-temperature drying, stretching and shaping, cooling and coiling treatment to obtain the impregnated canvas.
Furthermore, the density of the warp threads is 150-250 threads/10 cm, and the density of the weft threads is 80-130 threads/10 cm; the warp is 800-2000D, and the weft is 500-1500D.
Furthermore, the twist of the polyester industrial yarn is 20-80 twist/10 cm, and the twist of the nylon industrial yarn is 10-100 twist/10 cm.
Further, the polycarboxylic acid is butane tetracarboxylic acid, citric acid or 3-amino triazole-5-carboxylic acid, and the molar ratio of the polycarboxylic acid to the diphenylmethane diamine is 1: 4-6. The polycarboxylic acid and the diphenylmethane diamine can react to generate a structure similar to RF resin, the structure can have higher adhesion with rubber on the surface of the canvas, and the use amount of resorcinol and formaldehyde can be reduced by adopting the gum dipping solution.
Further, the primary latex is butyl pyridine latex or butyronitrile latex, and the secondary latex is butadiene pyridine latex.
Further, the pressure of the impregnation extrusion roller in the third step is 600-800N, the extrusion speed is 0.5-0.8 m/min, and the temperature of the oven is controlled at 200-230 ℃.
Further, the speed of primary impregnation of the base fabric is 5-8 cm/s, the speed of secondary impregnation is 10-15 cm/s, and the secondary impregnation liquid also contains VAE emulsion.
Further, the VAE emulsion was 5% by weight. The VAE emulsion has good flexibility and acid and alkali resistance, and simultaneously, the dipping solution can better form a film on the surface of the canvas, so that the coating of the dipping solution and the canvas is accelerated.
The invention discloses a production method of integrally woven gum dipping canvas, which can improve the use environment of a conveyer belt by blending different fiber materials and can complement the defects of different fibers to weaken the use defect of a single fiber. Meanwhile, the new gum dipping solution is adopted to coat the canvas skeleton, so that the canvas skeleton can be well vulcanized and bonded with rubber materials, and the stripping resistance and the service performance of the conveying belt are improved.
Drawings
FIG. 1 is a schematic view of the structure of the integrally woven impregnated canvas of the present invention.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1
step one, preparation of base cloth
Selecting polyester industrial yarns as warps, selecting polyamide industrial yarns as wefts, and weaving the warps and the wefts by adopting an integral weaving method; as shown in fig. 1, the number of warp threads (1-5) is 8, the weft threads 6 are divided into 4 rows, and the base fabric is woven by adopting double layers and is ready for use; the density of the warp threads is 150 threads/10 cm, and the density of the weft threads is 80 threads/10 cm; the warp is 800D and the weft is 500D. The twist of the polyester industrial yarn is 20 twists/10 cm, and the twist of the nylon industrial yarn is 10 twists/10 cm.
Step two, preparation of gum dipping solution
The glue dipping solution comprises a primary glue dipping solution and a secondary glue dipping solution, wherein the primary glue dipping solution consists of resorcinol, formaldehyde, primary latex and deionized water, and the secondary glue dipping solution consists of polycarboxylic acid, diphenylmethane diamine, secondary latex and deionized water; after the two groups of gum dipping solutions are prepared, uniformly stirring for later use; the polybasic carboxylic acid is butane tetracarboxylic acid, and the molar ratio of the polybasic carboxylic acid to the diphenylmethane diamine is 1: 4. The primary latex is butyl pyridine latex, and the secondary latex is butadiene pyridine latex.
Step three, preparation of gum dipping canvas
Firstly, carrying out gum dipping treatment on the base cloth by using a primary gum dipping solution, draining, and then drying; and then carrying out secondary impregnation treatment on the base cloth subjected to the primary impregnation, and sequentially carrying out filter pressing, impregnation extrusion roller extrusion, high-temperature drying, stretching and shaping, cooling and coiling treatment to obtain the impregnated canvas. Wherein the pressure of the dipping extrusion roller is 600N, the extrusion speed is 0.5m/min, and the temperature of the oven is controlled at 200 ℃. The speed of primary impregnation of the base fabric is 5cm/s, the speed of secondary impregnation is 10cm/s, and the secondary impregnation liquid also contains 5 wt% of VAE emulsion.
Example 2
step one, preparation of base cloth
Selecting polyester industrial yarns as warps, selecting polyamide industrial yarns as wefts, and weaving the warps and the wefts by adopting an integral weaving method; wherein, the number of the warps (1-5) is 8, the wefts 6 are divided into 4 rows, and the base fabric is woven by adopting double layers and is ready for use; the density of the warp threads is 180 threads/10 cm, and the density of the weft threads is 100 threads/10 cm; the warp threads are 1000D, and the weft threads are 700D. The twist of the polyester industrial yarn is 40 twists/10 cm, and the twist of the nylon industrial yarn is 30 twists/10 cm.
Step two, preparation of gum dipping solution
The glue dipping solution comprises a primary glue dipping solution and a secondary glue dipping solution, wherein the primary glue dipping solution consists of resorcinol, formaldehyde, primary latex and deionized water, and the secondary glue dipping solution consists of polycarboxylic acid, diphenylmethane diamine, secondary latex and deionized water; after the two groups of gum dipping solutions are prepared, uniformly stirring for later use; the polybasic carboxylic acid is citric acid, and the molar ratio of the polybasic carboxylic acid to the diphenylmethane diamine is 1: 4. The primary latex is butyronitrile latex, and the secondary latex is butadiene-styrene pyridine latex.
Step three, preparation of gum dipping canvas
Firstly, carrying out gum dipping treatment on the base cloth by using a primary gum dipping solution, draining, and then drying; and then carrying out secondary impregnation treatment on the base cloth subjected to the primary impregnation, and sequentially carrying out filter pressing, impregnation extrusion roller extrusion, high-temperature drying, stretching and shaping, cooling and coiling treatment to obtain the impregnated canvas. Wherein the pressure of the dipping extrusion roller is 600N, the extrusion speed is 0.5m/min, and the temperature of the oven is controlled at 200 ℃. The speed of primary impregnation of the base fabric is 5cm/s, the speed of secondary impregnation is 10cm/s, and the secondary impregnation liquid also contains 5 wt% of VAE emulsion.
Example 3
step one, preparation of base cloth
Selecting polyester industrial yarns as warps, selecting polyamide industrial yarns as wefts, and weaving the warps and the wefts by adopting an integral weaving method; as shown in fig. 1, the number of warp threads (1-5) is 8, the weft threads 6 are divided into 4 rows, and the base fabric is woven by adopting double layers and is ready for use; the density of the warp threads is 220 threads/10 cm, and the density of the weft threads is 110 threads/10 cm; the warp is 1500D and the weft is 1000D. The twist of the polyester industrial yarn is 60 twists/10 cm, and the twist of the nylon industrial yarn is 60 twists/10 cm.
Step two, preparation of gum dipping solution
The glue dipping solution comprises a primary glue dipping solution and a secondary glue dipping solution, wherein the primary glue dipping solution consists of resorcinol, formaldehyde, primary latex and deionized water, and the secondary glue dipping solution consists of polycarboxylic acid, diphenylmethane diamine, secondary latex and deionized water; after the two groups of gum dipping solutions are prepared, uniformly stirring for later use; the polybasic carboxylic acid is 3-amino triazole-5-carboxylic acid, and the molar ratio of the polybasic carboxylic acid to the diphenylmethane diamine is 1: 5. The primary latex is butyl pyridine latex, and the secondary latex is butadiene pyridine latex.
Step three, preparation of gum dipping canvas
Firstly, carrying out gum dipping treatment on the base cloth by using a primary gum dipping solution, draining, and then drying; and then carrying out secondary impregnation treatment on the base cloth subjected to the primary impregnation, and sequentially carrying out filter pressing, impregnation extrusion roller extrusion, high-temperature drying, stretching and shaping, cooling and coiling treatment to obtain the impregnated canvas. Wherein the pressure of the dipping extrusion roller is 800N, the extrusion speed is 0.8m/min, and the temperature of the oven is controlled at 230 ℃. The primary impregnation speed of the base fabric is 8cm/s, the secondary impregnation speed is 15cm/s, and the secondary impregnation liquid also contains 5 wt% of VAE emulsion.
Example 4
step one, preparation of base cloth
Selecting polyester industrial yarns as warps, selecting polyamide industrial yarns as wefts, and weaving the warps and the wefts by adopting an integral weaving method; as shown in fig. 1, the number of warp threads (1-5) is 8, the weft threads 6 are divided into 4 rows, and the base fabric is woven by adopting double layers and is ready for use; the density of the warp threads is 250 threads/10 cm, and the density of the weft threads is 130 threads/10 cm; the warp was 2000D and the weft was 1500D. The twist of the polyester industrial yarn is 80 twists/10 cm, and the twist of the nylon industrial yarn is 100 twists/10 cm.
Step two, preparation of gum dipping solution
The glue dipping solution comprises a primary glue dipping solution and a secondary glue dipping solution, wherein the primary glue dipping solution consists of resorcinol, formaldehyde, primary latex and deionized water, and the secondary glue dipping solution consists of polycarboxylic acid, diphenylmethane diamine, secondary latex and deionized water; after the two groups of gum dipping solutions are prepared, uniformly stirring for later use; the polycarboxylic acid is citric acid, and the molar ratio of the polycarboxylic acid to the diphenylmethane diamine is 1: 4-6. The primary latex is butyl pyridine latex, and the secondary latex is butadiene pyridine latex.
Step three, preparation of gum dipping canvas
Firstly, carrying out gum dipping treatment on the base cloth by using a primary gum dipping solution, draining, and then drying; and then carrying out secondary impregnation treatment on the base cloth subjected to the primary impregnation, and sequentially carrying out filter pressing, impregnation extrusion roller extrusion, high-temperature drying, stretching and shaping, cooling and coiling treatment to obtain the impregnated canvas. Wherein the pressure of the dipping extrusion roller is 800N, the extrusion speed is 0.8m/min, and the temperature of the oven is controlled at 230 ℃. The primary impregnation speed of the base fabric is 8cm/s, the secondary impregnation speed is 15cm/s, and the secondary impregnation liquid also contains 5 wt% of VAE emulsion.
And (3) experimental detection:
the products in the above embodiments are sent to a petroleum and chemical industry new material and product quality supervision and inspection center for testing, and the inspection basis and judgment principle are as follows: Q/HY 04-2013 & lt & gt high-strength industrial gum dipping synthetic fiber canvas & lt/T3690-2017 & lt/EN & gt test method for full-thickness tensile strength, elongation at break and reference force elongation of fabric core conveyer belt & lt/EN & gt; the test items and test results were as follows:
through the experimental tests, it can be seen that 4 test samples designed by adopting the scheme all meet the requirements of technical standards. It is apparent that the conveyor belt manufactured by using the new integrally woven canvas and rubber vulcanization is inferior in overall strength to the conveyor belt manufactured by using the multi-layered polyester canvas. But compare according to the single-layer canvas, adopt whole establishment have better service strength again to the conveyer belt that this scheme later stage made will be lighter than traditional conveyer belt 15 ~ 20% in the aspect of unit weight, and production technology, the aspect consuming time all have better promotion, thereby reduced manufacturing cost, and after with rubber bonding, anti peel strength also has nearly 8 ~ 10% promotion.
The scheme provides a production method for integrally weaving gum dipping canvas, which can improve the use environment of a conveyer belt by blending different fiber materials, and can complement the defects of different fibers and weaken the use defect of single fiber. Meanwhile, the new gum dipping solution is adopted to coat the canvas skeleton, so that the canvas skeleton can be well vulcanized and bonded with rubber materials, and the stripping resistance and the service performance of the conveying belt are improved.
Claims (8)
1. A production method of integrally woven gum dipped canvas is characterized by comprising the following preparation steps:
step one, preparation of base cloth
Selecting polyester industrial yarns as warps and nylon industrial yarns as wefts, and weaving the warps and the wefts by adopting an integral weaving method; wherein, the warp adopts 8, the weft is divided into 4 rows, and the warp is woven by double layers and weaved into base cloth for standby;
step two, preparation of gum dipping solution
The glue dipping solution comprises a primary glue dipping solution and a secondary glue dipping solution, wherein the primary glue dipping solution is composed of resorcinol, formaldehyde, primary latex and deionized water, and the secondary glue dipping solution is composed of polycarboxylic acid, diphenylmethane diamine, secondary latex and deionized water; after the two groups of gum dipping solutions are prepared, uniformly stirring for later use;
step three, preparation of gum dipping canvas
Firstly, carrying out gum dipping treatment on the base cloth by using a primary gum dipping solution, draining, and then drying; and then carrying out secondary impregnation treatment on the base cloth subjected to the primary impregnation, and sequentially carrying out filter pressing, impregnation extrusion roller extrusion, high-temperature drying, stretching and shaping, cooling and coiling treatment to obtain the impregnated canvas.
2. The method for producing integrally woven canvas for dipping gum as claimed in claim 1, wherein said warp density is 150 to 250 threads/10 cm, and said weft density is 80 to 130 threads/10 cm; the warp is 800-2000D, and the weft is 500-1500D.
3. The method for producing the integrally woven canvas for dipping gum as claimed in claim 1, wherein the twist of said polyester industrial yarn is 20-80 twist/10 cm, and the twist of said nylon industrial yarn is 10-100 twist/10 cm.
4. The production method of the integrally woven gum dipping canvas as claimed in claim 1, wherein the polycarboxylic acid is butane tetracarboxylic acid, citric acid or 3-amino triazole-5-carboxylic acid, and the molar ratio of the polycarboxylic acid to the diphenylmethane diamine is 1: 4-6.
5. The method for producing integrally woven rubberized canvas according to claim 1, wherein said primary latex is butyl pyridine latex or butyronitrile latex, and said secondary latex is butadiene-styrene pyridine latex.
6. The method for producing the integrally woven canvas for dipping gum as claimed in claim 1, wherein the pressure of the dipping squeeze roll in the third step is 600-800N, the squeezing speed is 0.5-0.8 m/min, and the temperature of the oven is controlled at 200-230 ℃.
7. The method for producing integrally woven canvas for dipping as claimed in claim 1, wherein the speed of the primary dipping is 5-8 cm/s, the speed of the secondary dipping is 10-15 cm/s, and the secondary dipping solution further contains VAE emulsion.
8. A method of manufacturing integrally woven rubberized canvas according to claim 7, wherein said VAE emulsion is present in an amount of 5% wt.
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