CN115322475A - Application process of foaming material for foaming slippers and sports midsoles - Google Patents
Application process of foaming material for foaming slippers and sports midsoles Download PDFInfo
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- CN115322475A CN115322475A CN202211116204.2A CN202211116204A CN115322475A CN 115322475 A CN115322475 A CN 115322475A CN 202211116204 A CN202211116204 A CN 202211116204A CN 115322475 A CN115322475 A CN 115322475A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/122—Soles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2499/00—Characterised by the use of natural macromolecular compounds or of derivatives thereof not provided for in groups C08J2401/00 - C08J2407/00 or C08J2489/00 - C08J2497/00
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention discloses a foaming material application process of foaming slippers and sports midsoles, belonging to the technical field of foaming, which comprises the steps of firstly selecting added raw materials, proportioning, then equally dividing EVA resin into two parts, mixing one part of EVA with a polyolefin thermoplastic elastomer, processing and granulating, mixing the other part of EVA with coffee grounds, bagasse and straw powder, processing and granulating, then adding a cross-linking agent, a foaming agent and a foaming auxiliary agent, and sequentially controlling the temperature, the fusion time, the foaming time, the secondary forming time and the surface treatment to finally obtain a finished product.
Description
Technical Field
The invention relates to the technical field of foaming, in particular to a foaming material application process of a pair of foaming slippers and sports midsoles.
Background
EVA is prepared by copolymerizing ethylene and vinyl acetate, is applied to soles of medium-high grade slippers and sandals, and has wide application range because the EVA resin has excellent flexibility, elasticity, transparency, low-temperature flexibility, adhesiveness, intermiscibility and easy processability, and is aging-resistant and easy to color.
The foaming slipper is assembled by a foaming sole and a non-foaming shoe, and the foaming material, also called as a foaming agent, refers to a foaming substance which can be gasified to generate bubbles in the substance to make the substance into a porous substance, such as manufacturing foamed plastics, foamed rubber, foamed resin, foamed food and the like, and the foaming material can be divided into three categories, namely a chemical foaming material, a physical foaming material and a surfactant. With the development of society, the foamed material also has considerable application results in the shoe industry.
Based on the above, the present inventors found that: when the common foaming material is adopted for manufacturing the slippers or the sports shoes, the proportion of the foaming material to the plastic is too high, so that white pollution in the processing process of the slippers or the sports shoes can be caused, and certain damage to the environment can be caused.
Therefore, in view of the above, research and improvement are made on the existing structure, and an application process of the foaming material for the foaming slippers and the sports mid-soles is provided, so as to achieve the purpose of higher practical value.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an application process of a foaming material of a foaming slipper and a sports insole, which can effectively reduce white pollution in the processing process of the slipper or the sports shoe and greatly reduce negative effects on the environment.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An application process of foaming materials of foaming slippers and sports midsoles comprises the following steps;
step S1: selecting the added raw materials and proportioning;
(1) Selecting polyolefin thermoplastic elastomer and controlling the adding amount of the polyolefin thermoplastic elastomer to be 5-15 parts;
(2) Selecting EVA resin and controlling the addition amount to be 55-75 parts;
(3) Adding 10-30 parts of coffee grounds, 10-30 parts of bagasse and 10-30 parts of straw powder;
(4) Adding 2 parts of foaming auxiliary agent;
(5) Adding 3 parts of talcum powder and 2 parts of titanium dioxide;
(6) Adding 2 parts of AC foaming agent;
(7) Dicumyl peroxide is selected as a cross-linking agent, and 1 part of dicumyl peroxide is added;
step S2: equally dividing the EVA resin in the step S1 into two parts, and respectively marking the two parts as a component A and a component B;
and step S3: mixing the EVA with the amount A in the step S2 with a polyolefin thermoplastic elastomer, and processing and granulating to obtain a mixture C;
and step S4: step S3, mixing the EVA with the coffee grounds, the bagasse and the straw powder in the component B, and processing and granulating to obtain a mixture D;
step S5: mixing the mixture C and the mixture D, and adding a cross-linking agent, a foaming agent and a foaming auxiliary agent to obtain a fused material E;
step S6: controlling the temperature and the fusion time, and granulating the fusion material E in the step S5 to obtain a mixed foaming material F;
step S7: selecting a primary blank mold of a slipper or a sports shoe, adding a foaming material F, regulating and controlling the temperature, further controlling the foaming time, and opening the mold after foaming is finished to obtain a coarse blank G;
step S8: carrying out surface treatment on the rough blank G, then placing the rough blank G into a secondary forming die of a slipper or a sports shoe, and controlling the temperature and the forming time to obtain a rough finished product H;
step S9: and carrying out secondary surface treatment on the crude product H to obtain a finished product I.
Further, the raw materials added in the step S1 are proportioned according to the mass standard.
Further, the polyolefin thermoplastic elastomer in the step S1 includes OBC, POE, and PE, and the mixing ratio of OBC, POE, and PE is 6.
Further, the proportion of ethyl acetate in the copolymer of the EVA resin in step S1 is in the range of 18% to 28%.
Further, the adding amount of the coffee grounds, the bagasse and the straw powder in the step S1 is the same.
Further, the foaming aid in the step S1 includes stearic acid and zinc stearate, and the proportion content of stearic acid is lower than that of zinc stearate.
Further, in the step S6, the temperature is controlled to be 120 ℃, and the fusion time is controlled to be 10-12min.
Further, in the step S7, the temperature is controlled to be 170-190 ℃, and the foaming time is controlled to be 5-8min.
Further, in the step S8, the temperature of the secondary molding is controlled to be 180 ℃, the time of the secondary molding is controlled to be 7min, and then cooling is performed, and the cooling time is controlled to be 6min.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) According to the scheme, in the manufacturing process of the slippers or the sports shoes, the bagasse, the coffee grounds and the straw powder are added, the proportion of foaming materials and plastics in the manufacturing process of the slippers or the sports shoes can be effectively reduced through the added materials, the defect that the existing EVA foaming materials cannot be rapidly degraded is well overcome, the environmental protection idea is popularized, the waste slippers are partially degradable, the contribution is made to environmental protection, the white pollution in the processing process of the slippers or the sports shoes is effectively reduced, and the negative influence on the environment is greatly reduced.
(2) According to the scheme, in the production process of the foaming slippers and the sports shoes, the proportion of various raw materials is controlled, and the time and the temperature in the processing process are strictly controlled, so that the high quality of the slippers and the sports shoes during forming is ensured, the comfort degree of the slippers and the sports shoes during use is ensured, and the excellent performance of the process on the slippers and the sports shoes is improved.
Detailed Description
The technical scheme in the embodiment of the invention will be clearly and completely described in the following with reference to the embodiment of the invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
The embodiment is as follows:
an application process of foaming materials of foaming slippers and sports midsoles comprises the following steps;
step S1: selecting the added raw materials and proportioning;
(1) Selecting polyolefin thermoplastic elastomer and controlling the adding amount of the polyolefin thermoplastic elastomer to be 5-15 parts;
(2) Selecting EVA resin and controlling the addition amount to be 55-75 parts;
(3) Adding 10-30 parts of coffee grounds, 10-30 parts of bagasse and 10-30 parts of straw powder;
(4) Adding 2 parts of foaming auxiliary agent;
(5) Adding 3 parts of talcum powder and 2 parts of titanium dioxide;
(6) Adding 2 parts of AC foaming agent;
(7) Dicumyl peroxide is selected as a cross-linking agent, and 1 part of dicumyl peroxide is added;
step S2: equally dividing the EVA resin in the step S1 into two parts, and respectively marking the two parts as a component A and a component B;
and step S3: mixing the EVA with the amount A in the step S2 with the polyolefin thermoplastic elastomer, and processing and granulating to obtain a mixture C;
and step S4: step S3, mixing the EVA with the coffee grounds, the bagasse and the straw powder in the component B, and processing and granulating to obtain a mixture D;
step S5: mixing the mixture C and the mixture D, and adding a cross-linking agent, a foaming agent and a foaming auxiliary agent to obtain a fused material E;
step S6: controlling the temperature and the fusion time, and granulating the fusion material E in the step S5 to obtain a mixed foaming material F;
step S7: selecting a primary blank mold of a slipper or a sports shoe, adding a foaming material F, regulating and controlling the temperature, further controlling the foaming time, and opening the mold after foaming is finished to obtain a coarse blank G;
step S8: carrying out surface treatment on the rough blank G, then placing the rough blank G into a secondary forming die of a slipper or a sports shoe, and controlling the temperature and the forming time to obtain a rough finished product H;
step S9: and carrying out secondary surface treatment on the crude product H to obtain a finished product I.
Referring to the above examples, the raw material ratios in the process are as follows:
referring to the above embodiment, the raw materials added in step S1 are proportioned according to mass;
the raw materials are proportioned according to the quality, so that the raw material proportioning accuracy in the production process is ensured.
Referring to the above examples, the polyolefin thermoplastic elastomer in step S1 includes OBC, POE, and PE, and the mixing ratio of OBC, POE, and PE is 6;
OBC is called olefin block copolymer, and is a functional plastic modified toughening agent with obvious development potential; POE is thermoplastic elastomer which adopts metallocene catalyst to realize in-situ polymerization of ethylene and alpha-olefin; the product has the property of elastomer, namely the PE has the characteristic of acid and alkali corrosion resistance, and the product quality of the polyolefin thermoplastic elastomer in use can be effectively improved by controlling the adding proportion of the OBC, the POE and the PE.
Referring to the above examples, the proportion of ethyl acetate in the copolymer of EVA resin in step S1 ranges from 18% to 28%;
when the content of the vinyl acetate in the EVA is lower than 20 percent, the EVA can be used as plastic, the EVA has good low-temperature resistance, the thermal decomposition temperature is lower and is about 230 ℃, the softening point of the EVA is increased along with the increase of the molecular weight, the processability and the surface gloss of a plastic part are reduced, but the strength is increased, the impact toughness and the environmental stress cracking resistance are improved, the chemical resistance and the oil resistance of the EVA are slightly lower than those of PE (polyethylene) and PVC (polyvinyl chloride) and change more obviously along with the increase of the content of the vinyl acetate, at the moment, the low-temperature resistance of the EVA resin is ensured by controlling the proportion of the ethyl acetate in the EVA, the strength and the environmental stress cracking resistance of the EVA are ensured, and the excellent performance of the EVA resin in the use process of the foaming slippers is integrally improved.
Referring to the above embodiment, the addition amounts of the coffee grounds, the bagasse and the straw powder in step S1 are the same;
the use of coffee sediment, bagasse and straw powder can realize the reutilization of waste material, and the quantity that can show the reduction plastics of adding of coffee sediment, bagasse and straw powder simultaneously reaches the effect that reduces white pollution in middle and high-end slippers and sports shoes trade, and simultaneously, the coffee sediment has deodorization and oil absorption's effect, and bagasse and straw powder can replace timber to use to a certain extent, have improved the physical strength of final product.
Referring to the above examples, the foaming aid in step S1 includes stearic acid and zinc stearate, and the proportion content of stearic acid is lower than that of zinc stearate;
stearic acid and zinc stearate both have the functions of reducing friction coefficient and lubricating, and the comfort level of the foaming slippers is improved.
Referring to the above embodiment, in step S6, the temperature is controlled to 120 ℃, and the fusion time is controlled to 10-12min;
and controlling the fusion time and temperature to ensure that the materials in the fused material E are uniformly dispersed.
Referring to the above embodiment, in step S7, the temperature is controlled to be 170-190 ℃, and the foaming time is controlled to be 5-8min;
and controlling the temperature, improving the foaming speed of the foaming material F, ensuring sufficient foaming time and reducing gaps inside the rough blank.
Referring to the above embodiment, in step S8, the temperature of the secondary molding is controlled to 180 ℃, the time of the secondary molding is controlled to 7min, and then cooling is performed, and the cooling time is controlled to 6min;
and (3) carrying out secondary forming on the rough blank G by using a secondary die, complementing the defect positions generated in the primary forming, forming the shape of the rough blank G, and reducing the appearance defects of the final finished product.
When in use: firstly, mixing the raw materials according to the mass ratio in the embodiment, wherein the raw materials comprise 6 parts of OBC, 5 parts of POE, 4 parts of PE, 65 parts of EVA (ethylene vinyl acetate) resin, 10 parts of coffee grounds, 10 parts of bagasse, 10 parts of straw powder, 1.2 parts of stearic acid, 0.8 part of zinc stearate, 3 parts of talcum powder, 2 parts of titanium dioxide, 2 parts of AC (alternating current) foaming agent and 1 part of dicumyl oxide;
then, equally dividing the EVA resin into two parts, respectively marking the two parts as a component A and a component B, mixing the EVA of the component A with the polyolefin thermoplastic elastomer, processing and granulating to obtain a mixture C, mixing the EVA of the component B with coffee grounds, bagasse and straw powder, processing and granulating to obtain a mixture D, mixing the mixture C with the mixture D, and adding a cross-linking agent, a foaming agent and a foaming auxiliary agent to obtain a fused material E;
then controlling the temperature to be 120 ℃ and the fusion time to be 10-12min, granulating the fusion material E in the step S5 to obtain a mixed foaming material F, then selecting a primary blank die of a slipper or a sports shoe, adding the foaming material F, regulating the temperature to be 170-190 ℃, controlling the foaming time to be 5-8min, further controlling the foaming time, after foaming is completed, opening the die to obtain a crude blank G, then carrying out surface treatment on the crude blank G, then placing the crude blank G into a secondary forming die of the slipper or the sports shoe, controlling the secondary forming temperature to be 180 ℃, controlling the secondary forming time to be 7min, then cooling, controlling the cooling time to be 6min to obtain a crude product H, and finally carrying out secondary surface treatment on the crude product H to obtain a finished product I;
thus, the whole process can be completed.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (9)
1. An application process of foaming materials of foaming slippers and sports midsoles is characterized in that: comprises the following steps;
step S1: selecting the added raw materials and proportioning;
(1) Selecting polyolefin thermoplastic elastomer and controlling the adding amount of the polyolefin thermoplastic elastomer to be 5-15 parts;
(2) Selecting EVA resin and controlling the addition amount to be 55-75 parts;
(3) Adding 10-30 parts of coffee grounds, 10-30 parts of bagasse and 10-30 parts of straw powder;
(4) Adding 2 parts of foaming auxiliary agent;
(5) Adding 3 parts of talcum powder and 2 parts of titanium dioxide;
(6) Adding 2 parts of AC foaming agent;
(7) Dicumyl peroxide is selected as a cross-linking agent, and 1 part of dicumyl peroxide is added;
step S2: equally dividing the EVA resin in the step S1 into two parts, and respectively marking the two parts as a component A and a component B;
and step S3: mixing the EVA with the amount A in the step S2 with the polyolefin thermoplastic elastomer, and processing and granulating to obtain a mixture C;
and step S4: step S3, mixing the EVA with the coffee grounds, the bagasse and the straw powder in the component B, and processing and granulating to obtain a mixture D;
step S5: mixing the mixture C and the mixture D, and adding a cross-linking agent, a foaming agent and a foaming auxiliary agent to obtain a fused material E;
step S6: controlling the temperature and the fusion time, and granulating the fusion material E in the step S5 to obtain a mixed foaming material F;
step S7: selecting a primary blank mold of a slipper or a sports shoe, adding a foaming material F, regulating and controlling the temperature, further controlling the foaming time, and opening the mold after foaming is finished to obtain a coarse blank G;
step S8: carrying out surface treatment on the rough blank G, then placing the rough blank G into a secondary forming die of slippers or sports shoes, and controlling the temperature and the forming time to obtain a rough finished product H;
step S9: and carrying out secondary surface treatment on the crude product H to obtain a finished product I.
2. The application process of the foaming materials for the foaming slippers and the sports mid-soles according to claim 1, which is characterized in that: the proportioning standard of the raw materials added in the step S1 is proportioning according to the mass.
3. The application process of the foaming materials for the foaming slippers and the sports mid-soles according to claim 1, which is characterized in that: the polyolefin thermoplastic elastomer in the step S1 includes OBC, POE, and PE, and the mixing ratio of OBC, POE, and PE is 6.
4. The application process of the foaming materials for the foaming slippers and the sports mid-soles according to claim 1, which is characterized in that: the proportion of the ethyl acetate in the copolymer of the EVA resin in the step S1 is 18-28%.
5. The application process of the foaming materials for the foaming slippers and the sports mid-soles according to claim 1, which is characterized in that: in the step S1, the adding amount of the coffee grounds, the bagasse and the straw powder is the same.
6. The application process of the foaming materials for the foaming slippers and the sports mid-soles according to claim 1, which is characterized in that: the foaming aid in the step S1 comprises stearic acid and zinc stearate, and the proportion content of the stearic acid is lower than that of the zinc stearate.
7. The application process of the foaming materials for the foaming slippers and the sports mid-soles according to claim 1, which is characterized in that: in the step S6, the temperature is controlled to be 120 ℃, and the fusion time is controlled to be 10-12min.
8. The application process of the foaming materials for the foaming slippers and the sports mid-soles according to claim 1, which is characterized in that: in the step S7, the temperature is controlled to be 170-190 ℃, and the foaming time is controlled to be 5-8min.
9. The application process of the foaming materials for the foaming slippers and the sports mid-soles according to claim 1, which is characterized in that: and in the step S8, the temperature of the secondary forming is controlled to be 180 ℃, the time of the secondary forming is controlled to be 7min, then cooling is carried out, and the cooling time is controlled to be 6min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211116204.2A CN115322475A (en) | 2022-09-14 | 2022-09-14 | Application process of foaming material for foaming slippers and sports midsoles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211116204.2A CN115322475A (en) | 2022-09-14 | 2022-09-14 | Application process of foaming material for foaming slippers and sports midsoles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116080110A (en) * | 2022-12-29 | 2023-05-09 | 太仓力九和塑胶工业有限公司 | Preparation process of elastic pad |
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| CN104817762A (en) * | 2015-05-04 | 2015-08-05 | 泰亚鞋业股份有限公司 | Environment-friendly EVA foaming shoe material and manufacturing method thereof |
| CN107434868A (en) * | 2016-05-25 | 2017-12-05 | 鸿明环保科技股份有限公司 | Biodegradable foamed material and its product |
| CN110615994A (en) * | 2019-09-12 | 2019-12-27 | 福建鸿星尔克体育用品有限公司 | Elastic damping sports shoe sole and preparation process thereof |
| CN110724339A (en) * | 2019-11-06 | 2020-01-24 | 泉州市顶尖新材料有限责任公司 | High-light-transmittance rubber-plastic EVA (ethylene-vinyl acetate copolymer) foamed sole and preparation method thereof |
| CN112143121A (en) * | 2020-10-20 | 2020-12-29 | 泉州市华阳鞋材科技有限公司 | Environment-friendly sole with recyclable biomass and preparation process thereof |
| CN114702718A (en) * | 2022-03-29 | 2022-07-05 | 福建斯达新材料科技有限公司 | Foaming sole formula capable of shortening secondary forming time and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116080110A (en) * | 2022-12-29 | 2023-05-09 | 太仓力九和塑胶工业有限公司 | Preparation process of elastic pad |
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