CN110628097A - Middle-base fabric scratch latex slurry for shoes and preparation method and application thereof - Google Patents
Middle-base fabric scratch latex slurry for shoes and preparation method and application thereof Download PDFInfo
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- CN110628097A CN110628097A CN201910926419.2A CN201910926419A CN110628097A CN 110628097 A CN110628097 A CN 110628097A CN 201910926419 A CN201910926419 A CN 201910926419A CN 110628097 A CN110628097 A CN 110628097A
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/04—Plastics, rubber or vulcanised fibre
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
- C08L7/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention discloses middle base fabric scratch latex slurry for shoes and a preparation method and application thereof, and the middle base fabric scratch latex slurry comprises 167 parts of natural latex, 10 parts of white carbon black, 30 parts of calcium carbonate, 0.6 part of peregal O, 0.5 part of wetting agent JFC, 1 part of aqueous defoaming agent, 90 parts of soft water, 2.5 parts of mildew preventive BCM, 1.2 parts of anti-aging agent MB, 4.5 parts of zinc oxide, 0.5 part of potassium hydroxide, 5 parts of sodium carboxymethylcellulose, 0.3 part of borax, 1 part of casein, 1.2 parts of accelerant and 2.2 parts of sulfur according to parts by weight. The formula and the preparation method of the latex paste for scraping the base fabric in the shoes are screened and optimized, so that the rubber paste has good punching performance on the premise of good bonding strength, is non-toxic and environment-friendly, and can improve the production quality. The invention has simple production process and wide material source and is suitable for industrial production. The invention is simple and easy to implement, low in cost and good in using effect of the product.
Description
Technical Field
The invention relates to the field of rubber processing, in particular to middle base fabric scratch latex slurry for shoes, a preparation method and application thereof.
Background
At present, the rubber shoe manufacturing industry generally has the problems that rubber penetrates through a base fabric to permeate to the other side after vulcanization of the base fabric, namely, the base fabric is easy to discolor and the like, and the appearance quality of a product is influenced; when the number of times of scraping the pulp or the thickness of scraping the pulp by the middle base fabric is increased, the production efficiency is reduced, the production cost is increased, the phenomena of adhesion deformation and hardness of the base fabric can also occur during punching, the adhesion performance of the base fabric and the sponge sizing material is poor during forming, the base fabric is easy to bounce off and other serious quality problems are caused, and meanwhile, the product qualification rate cannot meet the production requirement. And the traditional pulping process is complex and consumes long time to ensure that all components are fully and uniformly dispersed. However, with the promotion of quality improvement and efficiency enhancement by enterprises, the market and consumer requirements are increasingly improved, the performance requirements and appearance quality requirements of products are increasingly important, and the method is an important premise that enterprises occupy the leading market position and improve the enterprise competitiveness, so that the method is particularly important for solving the quality problems of permeable rubber, hard and discoloring and the like easily generated after vulcanizing the insole cloth of shoes, ensuring the filling property of gaps of the insole cloth, the stability after vulcanizing and adapting to the actual production requirements, and has urgent practical significance for researching the formula and the production process of targeted latex slurry.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the middle base fabric scratch emulsion slurry for the shoes has an excellent cloth grain gap filling function, is good in stability after vulcanization, suitable for actual production requirements, low in cost, non-toxic and environment-friendly, and capable of improving production quality and production efficiency so as to overcome the defects of the prior art.
The invention is realized by the following steps: the middle base fabric scratch latex slurry for shoes comprises, by weight, 160-170 parts of natural latex, 5-15 parts of white carbon black, 25-35 parts of calcium carbonate, 0.4-0.8 part of peregal O, 0.3-0.7 part of wetting agent JFC, 0.5-1.5 parts of water-based antifoaming agent, 80-100 parts of soft water, 2-3 parts of mildew preventive BCM, 1-1.4 parts of anti-aging agent MB, 4-5 parts of zinc oxide, 0.4-0.6 part of potassium hydroxide, 4-6 parts of sodium carboxymethylcellulose, 0.2-0.4 part of borax, 0.8-1.2 parts of casein, 1.0-1.4 parts of accelerator and 1.8-2.6 parts of sulfur.
More preferably, the composition comprises, by weight, 167 parts of natural latex, 10 parts of white carbon black, 30 parts of calcium carbonate, 0.6 part of peregal O, 0.5 part of wetting agent JFC, 1 part of aqueous defoaming agent, 90 parts of soft water, 2.5 parts of mildew preventive BCM, 1.2 parts of anti-aging agent MB, 4.5 parts of zinc oxide, 0.5 part of potassium hydroxide, 5 parts of sodium carboxymethylcellulose, 0.3 part of borax, 1 part of casein, 1.2 parts of accelerator and 2.2 parts of sulfur.
The preparation method of the middle base fabric scratch latex slurry for shoes comprises the following steps of taking the components in parts by weight; the method comprises the following steps:
1) preparing a CMC swelling body: adding 65 parts of soft water, 5 parts of sodium carboxymethylcellulose and 2.5 parts of mildew preventive BCM into a stirrer, mixing, slowly stirring, adding 0.5 part of potassium hydroxide, and stirring until the sodium carboxymethylcellulose is uniformly dispersed and a thick liquid without agglomeration phenomenon is obtained to obtain a CMC swelling body;
2) preparing a vulcanizing agent aqueous dispersion:
a) the weight of the canned pellets is 8 kg, the diameter is 10-40 mm, and the pellets are timely replenished after being worn.
b) The canning process includes adding 20 parts of soft water, 1 part of water-based defoaming agent, 2.5 parts of mildew preventive BCM, 0.3 part of borax, 1 part of casein, 1.2 parts of anti-aging agent MB, 1.2 parts of accelerator, 4.5 parts of zinc oxide and 2.2 parts of sulfur into a can, finally adding 5 parts of soft water, stirring uniformly, sealing an upper cover → labeling, and ball milling for 8 hours.
c) When the tank is taken out, the tank can not be washed by water, and soft water is needed for filling the tank.
d) The ball milling liquid is taken out and used at present, and the ball milling liquid is strictly forbidden to be taken out of the tank and stored.
3) Manufacturing the mucilage: adding a CMC swelling body, a vulcanizing agent aqueous dispersion, 20 parts of calcium carbonate, a wetting agent JFC and peregal O into a stirring container, and uniformly stirring; under the stirring condition, 167 parts of natural latex, the rest of calcium carbonate and white carbon black are gradually added into the mixture, the calcium carbonate and the white carbon black are gradually added in batches in a small amount to ensure that the filler cannot agglomerate and save the pulping time, the mixture is continuously stirred to a viscous body with all the ingredients fully dispersed uniformly and without particles, the finished product is obtained after the slurry is discharged, the concentration of the slurry is measured by a Bomei hydrometer imitation, and the qualified product is obtained when the concentration is 15-20 seconds.
The application of the latex slurry for middle base fabric scraping for shoes is characterized in that: uniformly scraping a glue layer with the thickness of 0.2-0.4 mm on the bottom cloth of the rubber shoe sponge within 48 hours after the glue is prepared, ensuring that gaps of cloth fibers are completely filled with the glue, and performing a punching test after drying to know punching adhesion performance; meanwhile, a middle sole cloth with the length and the width of 30cm is put into a vulcanizing tank, vulcanized once at 137 ℃ for 30min, dust and sundries on the surface of the middle sole cloth are cleaned, and the hardness, the glue penetration and the color change of the middle sole cloth are observed after the middle sole cloth is placed for one day.
Natural latex-bonding to the fabric fibers.
And the wetting agent JFC is used for increasing the permeability of the adhesive cement to cloth marks, so that the adhesive fastness is improved.
Peregal O-increases the stability of the mucilage system, improves the lubricating performance of the shoe bottom cloth scraping mucilage and ensures the thickness of a mucilage layer.
Aqueous defoamer-to eliminate insoluble gases in the cement.
Potassium hydroxide, an alkaline medium, prevents deterioration.
And (3) mildew preventive BCM (brain-computer) for preventing the mucilage layer and the sole cloth from mildewing.
Hydroxymethyl cellulose, a thickening stabilizer in the mucilage, prevents the mucilage from penetrating the cloth marks.
White carbon black and calcium carbonate as cloth grain filler.
Casein as stabilizer and viscosity increasing effect.
To further verify the effect of the present invention, the following experiment was performed:
first, research on optimum mixture ratio of raw materials
TABLE 1
TABLE 1 continuation
TABLE 1 continuation 2
According to the test results in table 1, the optimal formulation is: 167 parts of natural latex, 10 parts of white carbon black, 30 parts of calcium carbonate, 0.6 part of peregal O, 0.5 part of wetting agent JFC, 1 part of aqueous defoaming agent, 90 parts of soft water, 2.5 parts of mildew preventive BCM, 1.2 parts of anti-aging agent MB, 4.5 parts of zinc oxide, 0.5 part of potassium hydroxide, 5 parts of sodium carboxymethylcellulose, 0.3 part of borax, 1 part of casein, 1.2 parts of accelerator and 2.2 parts of sulfur.
Second, study of pulping process
TABLE 2
The best manufacturing process is shown by comparing several process flows in table 2: firstly, preparing a CMC swelling body and a vulcanizing agent aqueous dispersion, then adding the vulcanizing agent aqueous dispersion, 20 kilograms of calcium carbonate and other compounding agents into the CMC swelling body, uniformly stirring, finally gradually adding natural latex, and continuously stirring until all the compounding agents are fully dispersed uniformly and are viscous without particles, wherein the rest calcium carbonate and white carbon black (the calcium carbonate and the white carbon black are gradually added in batches in small quantities to ensure that a filler cannot agglomerate and save pulping time). The quality of the cloth scraping mucilage prepared by the process can meet the requirement.
Due to the adoption of the technical scheme, compared with the prior art, the formula and the preparation method of the latex paste for scraping the base fabric in the shoes are screened and optimized, so that the rubber paste has good punching performance and filling performance on the premise of good bonding strength, is time-saving, non-toxic and environment-friendly, and can improve the production quality. The invention has simple production process, wide material source and low cost, and is suitable for industrial production.
Detailed Description
Example 1 of the invention: the middle base fabric scratch latex slurry for shoes comprises, by weight, 167 parts of natural latex, 10 parts of white carbon black, 30 parts of calcium carbonate, 0.6 part of peregal O, 0.5 part of wetting agent JFC, 1 part of aqueous defoaming agent, 90 parts of soft water, 2.5 parts of mildew preventive BCM, 1.2 parts of anti-aging agent MB, 4.5 parts of zinc oxide, 0.5 part of potassium hydroxide, 5 parts of sodium carboxymethylcellulose, 0.3 part of borax, 1 part of casein, 1.2 parts of accelerator and 2.2 parts of sulfur.
The preparation method of the middle base fabric scratch latex slurry for shoes comprises the following steps of taking the components in parts by weight; 1) preparing a CMC swelling body: adding 65 parts of soft water, 5 parts of sodium carboxymethylcellulose and 2.5 parts of mildew preventive BCM into a stirrer, mixing, slowly stirring, adding 0.5 part of potassium hydroxide, and stirring until the sodium carboxymethylcellulose is uniformly dispersed and a thick liquid without agglomeration phenomenon is obtained to obtain a CMC swelling body; 2) preparing a vulcanizing agent aqueous dispersion: a) the weight of the canned pellets is 8 kg, the diameter is 10-40 mm, and the pellets are timely replenished after being worn. b) The canning process includes adding 20 parts of soft water, 1 part of water-based defoaming agent, 2.5 parts of mildew preventive BCM, 0.3 part of borax, 1 part of casein, 1.2 parts of anti-aging agent MB, 1.2 parts of accelerator, 4.5 parts of zinc oxide and 2.2 parts of sulfur into a can, finally adding 5 parts of soft water, stirring uniformly, sealing an upper cover → labeling, and ball milling for 8 hours. c) When the tank is taken out, the tank can not be washed by water, and soft water is needed for filling the tank. d) The ball milling liquid is taken out and used at present, and the ball milling liquid is strictly forbidden to be taken out of the tank and stored. 3) Manufacturing the mucilage: adding a CMC swelling body, a vulcanizing agent aqueous dispersion, 20 parts of calcium carbonate, a wetting agent JFC and peregal O into a stirring container, and uniformly stirring; under the stirring condition, 167 parts of natural latex, the rest of calcium carbonate and white carbon black are gradually added into the mixture, the calcium carbonate and the white carbon black are gradually added in batches in a small amount to ensure that the filler cannot agglomerate and save the pulping time, the mixture is continuously stirred to a viscous body with all the ingredients fully dispersed uniformly and without particles, the finished product is obtained after the slurry is discharged, the concentration of the slurry is measured by a Bomei hydrometer imitation, and the qualified product is obtained when the concentration is 15-20 seconds.
The application of the latex slurry for scraping the middle base fabric for shoes is characterized in that: uniformly scraping a glue layer with the thickness of 0.2-0.4 mm on the bottom cloth of the rubber shoe sponge within 48 hours after the glue is prepared, ensuring that gaps of cloth fibers are completely filled with the glue, and performing a punching test after drying to know punching adhesion performance; meanwhile, a middle sole cloth with the length and the width of 30cm is put into a vulcanizing tank, vulcanized once at 137 ℃ for 30min, dust and sundries on the surface of the middle sole cloth are cleaned, and the hardness, the glue penetration and the color change of the middle sole cloth are observed after the middle sole cloth is placed for one day.
Example 2 of the invention: the middle base fabric scratch latex slurry for shoes comprises, by weight, 167 parts of natural latex, 15 parts of white carbon black, 25 parts of calcium carbonate, 0.6 part of peregal O, 0.5 part of wetting agent JFC, 1 part of aqueous defoaming agent, 100 parts of soft water, 2.0 parts of mildew preventive BCM, 1.2 parts of anti-aging agent MB, 4.5 parts of zinc oxide, 0.5 part of potassium hydroxide, 4 parts of sodium carboxymethylcellulose, 0.3 part of borax, 1 part of casein, 1.2 parts of accelerator and 2.2 parts of sulfur.
The preparation method and application are the same as those of example 1.
Example 3 of the invention: the middle base fabric scratch latex slurry for shoes comprises, by weight, 167 parts of natural latex, 10 parts of white carbon black, 30 parts of calcium carbonate, 0.6 part of peregal O, 0.5 part of wetting agent JFC, 1 part of aqueous defoaming agent, 85 parts of soft water, 3 parts of mildew preventive BCM, 1.2 parts of anti-aging agent MB, 4.5 parts of zinc oxide, 0.7 part of potassium hydroxide, 5 parts of sodium carboxymethylcellulose, 0.3 part of borax, 1.5 parts of casein, 1.2 parts of accelerator and 2.0 parts of sulfur.
The preparation method and application are the same as those of example 1.
Claims (7)
1. The middle base fabric scratch emulsion slurry for shoes is characterized by comprising the following components in parts by weight: the environment-friendly flame retardant coating comprises, by weight, 160-170 parts of natural latex, 5-15 parts of white carbon black, 25-35 parts of calcium carbonate, 0.4-0.8 part of peregal O, 0.3-0.7 part of wetting agent JFC, 0.5-1.5 parts of aqueous defoaming agent, 80-100 parts of soft water, 2-3 parts of mildew preventive BCM, 1-1.4 parts of anti-aging agent MB, 4-5 parts of zinc oxide, 0.4-0.6 part of potassium hydroxide, 4-6 parts of sodium carboxymethyl cellulose, 0.2-0.4 part of borax, 0.8-1.2 parts of casein, 1.0-1.4 parts of accelerator and 1.8-2.6 parts of sulfur.
2. The middle base fabric scratch slurry for shoes according to claim 1, characterized in that: the environment-friendly flame-retardant rubber comprises, by weight, 167 parts of natural latex, 10 parts of white carbon black, 30 parts of calcium carbonate, 0.6 part of peregal O, 0.5 part of wetting agent JFC, 1 part of aqueous defoaming agent, 90 parts of soft water, 2.5 parts of mildew preventive BCM, 1.2 parts of anti-aging agent MB, 4.5 parts of zinc oxide, 0.5 part of potassium hydroxide, 5 parts of sodium carboxymethylcellulose, 0.3 part of borax, 1 part of casein, 1.2 parts of accelerator and 2.2 parts of sulfur.
3. The middle base fabric scratch slurry for shoes according to claim 1 or 2, characterized in that: the natural latex solids content was 60%.
4. The middle base fabric scratch slurry for shoes according to claim 1 or 2, characterized in that: the calcium carbonate is ultrafine white light calcium carbonate.
5. The middle base fabric scratch slurry for shoes according to claim 1 or 2, characterized in that: 1.2 parts of accelerator TT 1.2 parts of accelerator.
6. A preparation method of latex slurry for scraping middle base fabric for shoes is characterized by comprising the following steps: taking the components according to the weight parts, comprising the following steps:
1) preparing a CMC swelling body: adding 65 parts of soft water, sodium carboxymethylcellulose and a mildew preventive BCM into a stirrer, mixing, slowly stirring, adding potassium hydroxide, and stirring until the sodium carboxymethylcellulose is uniformly dispersed and is a thick liquid without agglomeration, thereby obtaining a CMC swelling body;
2) preparing a vulcanizing agent aqueous dispersion:
a) the weight of the canned pellets is 8 kg, the diameter is 10-40 mm, and the pellets are timely supplemented after being worn;
b) adding 20 parts of soft water, 1 part of water-based defoaming agent, 2.5 parts of mildew preventive BCM, 0.3 part of borax, 1 part of casein, 1.2 parts of anti-aging agent MB, 1.2 parts of accelerator, 4.5 parts of zinc oxide and 2.2 parts of sulfur into a tank, finally adding 5 parts of soft water, uniformly stirring, sealing an upper cover → labeling, and ball-milling for 8 hours;
c) when the tank is taken out, the tank cannot be washed by water, and soft water is needed for filling the tank;
d) taking the ball milling liquid at present, and strictly stopping taking out of the tank and storing;
3) manufacturing the mucilage: adding a CMC swelling body, a vulcanizing agent aqueous dispersion, 20 parts of calcium carbonate, a wetting agent JFC and peregal O into a stirring container, and uniformly stirring; under the condition of stirring, 167 parts of natural latex, the rest of calcium carbonate and white carbon black are gradually added into the mixture, the mixture is continuously stirred until all the compounding agents are fully dispersed uniformly and are thick without particles, a finished product is obtained after slurry discharge, the concentration of the slurry is measured by a Bomei-imitated gravimeter, and the product is qualified after the concentration is 15-20 seconds.
7. The application of the latex slurry for middle base fabric scraping for shoes is characterized in that: uniformly scraping a glue layer with the thickness of 0.2-0.4 mm on the bottom cloth of the rubber shoe sponge within 48 hours after the glue is prepared, ensuring that gaps of cloth fibers are completely filled with the glue, and performing a punching test after drying to know punching adhesion performance; meanwhile, a middle sole cloth with the length and the width of 30cm is put into a vulcanizing tank, vulcanized once at 137 ℃ for 30min, dust and sundries on the surface of the middle sole cloth are cleaned, and the hardness, the glue penetration and the color change of the middle sole cloth are observed after the middle sole cloth is placed for one day.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304831A (en) * | 2022-06-20 | 2022-11-08 | 芜湖三鼎鞋业有限公司 | Fast-setting latex and preparation method thereof, wear-resistant felt shoe and production method thereof |
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| JPS6023500A (en) * | 1983-07-16 | 1985-02-06 | 月星化成株式会社 | Manufacture of shoe |
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| CN101781533A (en) * | 2010-03-24 | 2010-07-21 | 际华三五一七橡胶制品有限公司 | Latex slurry used on base fabric in rubber shoe and preparation method thereof |
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| CN103276599A (en) * | 2013-06-18 | 2013-09-04 | 际华三五三七制鞋有限责任公司 | Anti-static water-based cloth coating mucilage in base cloth in sponges in rubber shoes, and preparation method and application thereof |
| CN103342839A (en) * | 2013-06-27 | 2013-10-09 | 际华三五三九制鞋有限公司 | Latex scrapping mucilage and preparation method thereof |
| CN109371703A (en) * | 2018-10-31 | 2019-02-22 | 际华三五三七制鞋有限责任公司 | Conductive rubber overshoes sponge indsole fabric aqueous sheaing rubber cement and preparation method and application |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6023500A (en) * | 1983-07-16 | 1985-02-06 | 月星化成株式会社 | Manufacture of shoe |
| CN101475782A (en) * | 2009-01-05 | 2009-07-08 | 际华三五三九制鞋有限公司 | Preparation of hot vulcanization type latex slurry for bonding rubber overshoe upper |
| CN101781533A (en) * | 2010-03-24 | 2010-07-21 | 际华三五一七橡胶制品有限公司 | Latex slurry used on base fabric in rubber shoe and preparation method thereof |
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| CN109371703A (en) * | 2018-10-31 | 2019-02-22 | 际华三五三七制鞋有限责任公司 | Conductive rubber overshoes sponge indsole fabric aqueous sheaing rubber cement and preparation method and application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304831A (en) * | 2022-06-20 | 2022-11-08 | 芜湖三鼎鞋业有限公司 | Fast-setting latex and preparation method thereof, wear-resistant felt shoe and production method thereof |
| CN115304831B (en) * | 2022-06-20 | 2024-02-02 | 芜湖三鼎鞋业有限公司 | Quick-setting emulsion and preparation method thereof, and wear-resistant felt shoe and production method thereof |
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Application publication date: 20191231 |