CN115948819A - Method for manufacturing high-toughness ultra-fine-diameter latex yarn - Google Patents
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- CN115948819A CN115948819A CN202211706175.5A CN202211706175A CN115948819A CN 115948819 A CN115948819 A CN 115948819A CN 202211706175 A CN202211706175 A CN 202211706175A CN 115948819 A CN115948819 A CN 115948819A
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Abstract
The invention discloses a method for manufacturing high-toughness superfine latex filaments, which comprises the steps of putting natural latex filaments and inert materials into an inert stirring tank for stirring and mixing; obtaining mixed glue solution; adding the mixed glue solution and various active materials into an active tank, and stirring and mixing to obtain a high-toughness superfine-diameter latex yarn mixed raw material; cooling the mixed raw material of the high-toughness ultra-fine latex yarn, conveying the cooled mixed raw material into an acid tank through an extrusion system to release water through acetic acid, and forming; cleaning and drying the formed latex filaments, then sticking powder on the latex filaments, and splicing a plurality of latex filaments together to form a latex tape; and vulcanizing the latex belt and cooling to obtain the high-toughness ultra-fine diameter latex ribbon. In the manufacturing process, a plurality of processes are completed in parallel by adopting the sectional cleaning, the sectional drying and the sectional vulcanizing method, so that the production efficiency of the latex yarn is improved.
Description
Technical Field
The invention relates to the technical field of latex yarn production industry, in particular to a method for manufacturing high-toughness ultra-fine diameter latex yarn.
Background
Although the latex yarn is widely used, the requirements of ultrathin elastic fabrics (such as high-grade socks, high-grade gloves, high-grade underwear elastic bands, high-grade bra shoulder straps and the like) on the diameter and the toughness strength of the latex yarn are stricter, but the manufacturing method of the fine-diameter latex yarn is not mature enough, the development of the production of the fine-diameter latex yarn is severely restricted, and the manufacturing method of the latex yarn capable of keeping the toughness under the condition of the fine diameter is urgently needed.
The method for manufacturing the superfine-diameter latex yarn mainly comprises a superfine-diameter latex yarn manufacturing process and a superfine-diameter latex yarn material ratio. The superfine latex yarn is prepared by processes of prevulcanization, concentration, deaeration, yarn extrusion, coagulation forming in coagulation bath, vulcanization, cooling, powder adhesion and the like according to the manufacturing process of the superfine latex yarn in the patent CN 113550024A; or adding new components or improving the raw material ratio to improve the performance of the latex yarn as in patents CN110295414A and CN104499094B.
The specific patent reference documents are as follows:
1) A preparation method of superfine high elastic latex yarn, and the patent number is CN113550024A. The patent relates to a superfine high-elastic latex yarn and a preparation method thereof, wherein natural latex is used as a main raw material, firstly, the natural latex is presulfurized, then, concentrated and defoamed to obtain spinning solution with the solid content of 65-70wt%, the spinning solution is extruded into yarn, the yarn is coagulated and formed in a coagulating bath, and then, the superfine latex yarn product is prepared through vulcanization, cooling and powder sticking treatment. The preparation components of the high-toughness ultrafine latex yarn are different from those of the high-toughness ultrafine latex yarn, and meanwhile, the sectional vulcanization method is adopted, so that the phenomena of over-vulcanization and the like are prevented, a plurality of processes are completed in parallel, and the production efficiency of a production line is improved.
2) "an environmental protection and energy saving type emulsion silk product and a preparation method thereof", patent number CN110295414A. The patent relates to an environment-friendly energy-saving latex yarn product and a preparation method thereof, wherein rare earth components are introduced into a conventional latex yarn production formula, and the temperature required by vulcanization can be reduced to 100-110 ℃ under the same reaction time and physical and mechanical property evaluation standards, so that the energy consumption used in a high-temperature vulcanization processing link in the production and manufacturing process of the latex yarn is greatly reduced. The high-toughness superfine-diameter latex yarn is prepared by different components from the above components, does not contain rare earth components, is obtained by adjusting the proportion of the natural latex to the inert material and the active material, and has good elasticity.
3) "an ultra-fine latex yarn and its manufacturing method", patent No. CN104499094B. The patent relates to a superfine latex yarn, which consists of an inert material and an active material, wherein latex and the inert material are added into an inert tank to be mixed to obtain a mixed glue solution; placing the mixed glue solution in an active tank, and adding an active material; placing the mixed glue solution added with the active material in a cooling tank for cooling, and then extruding the cooling liquid through an extrusion system to an acid tank in a filiform manner; releasing water from the filiform mixed glue solution by acetic acid and forming; cleaning and drying the formed latex yarn by using clear water; dipping the dried latex filaments into powder in a talcum powder box, and splicing a plurality of latex filaments together by using a splicing tape machine to form the latex tape; vulcanizing the latex tape in a vulcanizing furnace; and cooling the vulcanized latex belt to obtain the superfine latex yarn with the diameter of 0.25-0.26 mm. The high-toughness superfine-diameter latex yarn is prepared by different components from the above components, does not contain oleic acid, and is prepared by adjusting the proportion of natural latex, inert materials and active materials.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a method for manufacturing high-toughness superfine-diameter latex yarns.
The purpose of the invention is realized by the following technical scheme:
a method for manufacturing high-toughness ultra-fine diameter latex filaments comprises the following steps:
step A, putting natural latex filaments and inert materials into an inert stirring tank for stirring and mixing; obtaining mixed glue solution;
step B, adding the mixed glue solution and a plurality of active materials into an active tank for stirring and mixing to obtain a high-toughness superfine-diameter latex filament mixed raw material;
step C, cooling the high-toughness ultra-fine-diameter latex yarn mixed raw material, conveying the cooled filaments generated by the extrusion system to an acid tank, releasing water by acetic acid, and forming;
d, cleaning and drying the formed latex filaments, then sticking powder, and splicing a plurality of latex filaments together to form a latex tape;
and E, vulcanizing and cooling the latex belt to obtain the high-toughness ultra-small diameter latex ribbon.
One or more embodiments of the present invention may have the following advantages over the prior art:
the natural latex, the inert material and the active material are proportioned to obtain the high-toughness ultra-fine diameter latex wire, compared with other finished products, the diameter can be as small as 0.235-0.245 mm, the tensile strength is more than 21MPa, the elongation at break is more than 700%, the 300% stress at definite elongation is 1.6-4.8MPs, the 600% permanent deformation at definite elongation is less than 8%, the Schwarz value is more than 1.1MPa, the tensile strength after aging is more than 16MPa, and the manufacturing requirements are met. Meanwhile, a plurality of processes are completed in parallel by adopting a sectional cleaning method, a sectional drying method and a sectional vulcanizing method in the manufacturing process, so that the production efficiency of the latex yarn is improved. The method can realize the automatic and efficient production of the high-toughness ultra-fine diameter latex yarn, and has high practical value and popularization significance.
Drawings
FIG. 1 is a flow chart of a method for manufacturing high-tenacity ultra-fine-diameter latex filaments.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1, the method for manufacturing the high-toughness ultra-fine diameter latex yarn comprises the following steps:
washing the latex filaments formed in the step 40 by a water tank, drying the latex filaments by a drying furnace, dipping powder in a talcum powder tank, and splicing a plurality of latex filaments together by a tape splicing machine to form a latex tape;
and step 50, vulcanizing the latex tape in a vulcanizing furnace, and cooling the latex tape in a cooling cylinder to obtain the high-toughness ultra-fine diameter latex ribbon.
The step 10 specifically includes: the mass ratio of the natural latex to inert materials such as 20% KOH solution, accelerator MZ, titanium dioxide, kaolin, sulfur, silicone oil, accelerator BZ, anti-aging agent, color paste SW and the like is 100: (1.1-1.3): (0.9-1.2): (1.8-2.2): (2-2.4): (1-1.2): (0.9-1.1): (0.6-0.7): (0.5 to 0.7): (0.15-0.25), stirring the materials for 2 hours at the speed of 450-500 rpm to obtain mixed glue solution.
The step 20 specifically includes: the mass ratio of the mixed glue solution to active materials such as 15% KOH solution and zinc oxide is 100: (0.5 to 0.6): (2.5-3), stirring the materials for 2 hours at the speed of 420-450 revolutions per minute to obtain the high-toughness superfine-diameter latex yarn mixed raw material.
The step 30 specifically includes: before entering an extrusion system, the mixed raw material of the high-toughness superfine latex yarn requires viscosity of 30-60 mPa & s, swelling rate of 2.2-2.3%, density of 1.000-1.250 kg/L, pH value of 11.1-13.30 and ammonia water content of 0.650-0.800%; the temperature of the acid tank is required to be 30 ℃, and the concentration of acetic acid is 27-28 mol/L.
The step 40 specifically includes: four water tanks are arranged, the temperature is 60 ℃, and the latex yarn adhering impurities are gradually cleaned; the drying furnace is divided into four sections to fully dry the latex filaments, the temperature of the first drying furnace layer is 100 ℃, the temperature of the second drying furnace layer is 102 ℃, the temperature of the third drying furnace layer is 102 ℃, and the temperature of the fourth drying furnace layer is 105 ℃. Sectional cleaning and drying improve the manufacturing efficiency of the production line.
The step 50 specifically includes: the vulcanizing furnace carries out vulcanization treatment on the latex filaments in four sections, wherein the temperature of a first vulcanizing oven is 115 ℃, the temperature of a second vulcanizing oven is 112 ℃, the temperature of a third vulcanizing oven is 112 ℃, the temperature of a fourth vulcanizing oven is 112 ℃, and the problems of over-vulcanization and the like can be prevented through sectional vulcanization; the diameter of the high-toughness ultra-fine diameter latex ribbon can reach 0.235-0.245 mm, when the tensile strength is more than 21MPa, the tensile elongation at break is more than 700%, the 300% tensile stress is 1.6-4.8 MPs, the 600% permanent deformation at definite elongation is less than 8%, the Schwarz value is more than 1.1MPa, the tensile strength after aging is more than 16MPa, and the manufacturing requirement is met.
Although the embodiments of the present invention have been described above, the above descriptions are only for the convenience of understanding the present invention, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A method for manufacturing high-toughness ultrafine-diameter latex yarns is characterized by comprising the following steps of:
step A, putting natural latex filaments and inert materials into an inert stirring tank for stirring and mixing; obtaining mixed glue solution;
step B, adding the mixed glue solution and a plurality of active materials into an active tank for stirring and mixing to obtain a high-toughness superfine-diameter latex filament mixed raw material;
step C, cooling the high-toughness ultra-fine-diameter latex yarn mixed raw material, conveying the cooled filaments generated by the extrusion system to an acid tank, releasing water by acetic acid, and forming;
d, cleaning and drying the formed latex filaments, then sticking powder, and splicing a plurality of latex filaments together to form a latex tape;
and E, vulcanizing and cooling the latex belt to obtain the high-toughness ultra-small diameter latex ribbon.
2. The process for producing a high tenacity ultra-fine diameter latex yarn according to claim 1, wherein said inert material comprises KOH solution at a concentration of 20%, accelerator MZ, titanium dioxide, kaolin, sulfur, silicone oil, accelerator BZ, anti-aging agent, and color paste SW.
3. The method for producing a high tenacity ultra-fine diameter latex yarn according to claim 2, wherein step a specifically comprises: mixing natural latex with 20% KOH solution, accelerator MZ, titanium dioxide, kaolin, sulfur, silicone oil, accelerator BZ, anti-aging agent and color paste SW in a mass ratio of 100:1.1 to 1.3:0.9 to 1.2: 1.8-2.2: 2-2.4: 1 to 1.2:0.9 to 1.1:0.6 to 0.7:0.5 to 0.7: 0.15-0.25, stirring the mixed materials for 2 hours at the speed of 450-500 rpm to obtain mixed glue solution.
4. The process for producing a high tenacity ultra-fine diameter latex yarn as claimed in claim 1, wherein said active material comprises 15% KOH solution and zinc oxide.
5. The method for producing a high tenacity ultra-fine diameter latex yarn according to claim 4, wherein step B specifically comprises: mixing the mixed glue solution with 15% KOH solution and zinc oxide according to the mass ratio of 100: 0.5-0.6: 2.5 to 3, and stirring the mixed material for 2 hours at the speed of 420 to 450 revolutions per minute to obtain the high-toughness superfine-diameter latex yarn mixed raw material.
6. The method for producing a high tenacity ultra-fine diameter latex yarn as claimed in claim 1, wherein said step C specifically comprises: the high-toughness superfine-diameter latex yarn mixed raw material is placed in a cooling tank for cooling, and before entering an extrusion system after cooling, the viscosity of the high-toughness superfine-diameter latex yarn mixed raw material is 30-60 mPa & s, the swelling rate is 2.2-2.3%, the density is 1.000-1.250 kg/L, the pH value is 11.1-13.30, and the ammonia water content is 0.650-0.800%; the temperature of the acid tank is required to be 30 ℃, and the concentration of acetic acid is 27-28 mol/L.
7. The method for producing a high tenacity ultra-fine diameter latex yarn as claimed in claim 1, wherein said step D specifically comprises: cleaning the formed latex filaments by a water tank, drying the latex filaments by a drying furnace, and then dipping powder in the talcum powder, wherein four water tanks are arranged, the temperature is 60 ℃, and the latex filaments are gradually cleaned to adhere impurities; the drying furnace is divided into four sections for drying the latex filaments, the temperature of a first drying furnace layer is 100 ℃, the temperature of a second drying furnace layer is 102 ℃, the temperature of a third drying furnace layer is 102 ℃, and the temperature of a fourth drying furnace layer is 105 ℃.
8. The method for producing a high tenacity ultra-fine diameter latex yarn as claimed in claim 1, wherein in said step E, the latex tape is vulcanized in a vulcanizing furnace and then cooled in a cooling cylinder, said vulcanizing furnace vulcanizing the latex yarn in four stages, the first vulcanizing oven temperature is 115 ℃, the second vulcanizing oven temperature is 112 ℃, the third vulcanizing oven temperature is 112 ℃ and the fourth vulcanizing oven temperature is 112 ℃; the diameter of the high-toughness ultra-fine diameter latex ribbon reaches 0.235-0.245 mm, when the tensile strength is more than 21MPa, the tensile elongation at break is more than 700%, the 300% tensile stress is 1.6-4.8 MPs, the 600% permanent deformation rate is less than 8%, the Schwarz value is more than 1.1MPa, and the tensile strength after aging is more than 16MPa.
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| CN202211706175.5A CN115948819A (en) | 2022-12-26 | 2022-12-26 | Method for manufacturing high-toughness ultra-fine-diameter latex yarn |
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| CN202211706175.5A CN115948819A (en) | 2022-12-26 | 2022-12-26 | Method for manufacturing high-toughness ultra-fine-diameter latex yarn |
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Citations (8)
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|---|---|---|---|---|
| CN103320884A (en) * | 2012-03-22 | 2013-09-25 | 福建三信织造有限公司 | Latex thread formula |
| CN104499094A (en) * | 2014-12-12 | 2015-04-08 | 广东国兴乳胶丝有限公司 | Superfine latex thread and production method thereof |
| CN106222765A (en) * | 2016-08-15 | 2016-12-14 | 广东国兴乳胶丝有限公司 | A kind of heat setting formula rubber latex thread production method |
| CN110295414A (en) * | 2019-06-25 | 2019-10-01 | 海南经纬乳胶丝有限责任公司 | A kind of environment-friendly and energy-efficient rubber latex thread product and preparation method thereof |
| CN112458570A (en) * | 2020-11-18 | 2021-03-09 | 海南经纬乳胶丝有限责任公司 | Graphene latex yarn with high mechanical property and preparation method thereof |
| CN113550024A (en) * | 2021-06-24 | 2021-10-26 | 中国热带农业科学院农产品加工研究所 | Preparation method of superfine high-elastic latex yarn |
| CN114834076A (en) * | 2022-03-29 | 2022-08-02 | 广东国兴乳胶丝有限公司 | Preparation method and device for directly forming large-diameter latex filaments |
| CN114855301A (en) * | 2022-03-29 | 2022-08-05 | 广东国兴乳胶丝有限公司 | Preparation method of novel latex yarn with variable diameter |
-
2022
- 2022-12-26 CN CN202211706175.5A patent/CN115948819A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320884A (en) * | 2012-03-22 | 2013-09-25 | 福建三信织造有限公司 | Latex thread formula |
| CN104499094A (en) * | 2014-12-12 | 2015-04-08 | 广东国兴乳胶丝有限公司 | Superfine latex thread and production method thereof |
| CN106222765A (en) * | 2016-08-15 | 2016-12-14 | 广东国兴乳胶丝有限公司 | A kind of heat setting formula rubber latex thread production method |
| CN110295414A (en) * | 2019-06-25 | 2019-10-01 | 海南经纬乳胶丝有限责任公司 | A kind of environment-friendly and energy-efficient rubber latex thread product and preparation method thereof |
| CN112458570A (en) * | 2020-11-18 | 2021-03-09 | 海南经纬乳胶丝有限责任公司 | Graphene latex yarn with high mechanical property and preparation method thereof |
| CN113550024A (en) * | 2021-06-24 | 2021-10-26 | 中国热带农业科学院农产品加工研究所 | Preparation method of superfine high-elastic latex yarn |
| CN114834076A (en) * | 2022-03-29 | 2022-08-02 | 广东国兴乳胶丝有限公司 | Preparation method and device for directly forming large-diameter latex filaments |
| CN114855301A (en) * | 2022-03-29 | 2022-08-05 | 广东国兴乳胶丝有限公司 | Preparation method of novel latex yarn with variable diameter |
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| 魏邦柱等: "《胶乳•乳液应用技术》", 化学工艺出版社, pages: 830 - 841 * |
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