CN111660474A - Processing technology of high-quality clean latex pillow - Google Patents
Processing technology of high-quality clean latex pillow Download PDFInfo
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- CN111660474A CN111660474A CN202010691173.8A CN202010691173A CN111660474A CN 111660474 A CN111660474 A CN 111660474A CN 202010691173 A CN202010691173 A CN 202010691173A CN 111660474 A CN111660474 A CN 111660474A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/041—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
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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
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- 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
- C08J9/0066—Use of inorganic compounding ingredients
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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
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/007—Heating the liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/041—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids
- B29C2035/042—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids other than water
- B29C2035/043—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids other than water oil
-
- 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
- C08J2307/00—Characterised by the use of natural rubber
- C08J2307/02—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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- 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
- C08K3/32—Phosphorus-containing compounds
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Emergency Medicine (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
A processing technology of a high-quality clean latex pillow. Comprises the following steps: mixing, injection molding, vacuum foaming, freezing, vulcanizing, ultrasonic hot water cleaning and vulcanizing, and radio frequency drying. The ultrasonic hot water cleaning and vulcanizing process is adopted, so that the product is vulcanized more fully, residues and water-soluble components in the latex product can be removed, and the prepared product is cleaner; meanwhile, the drying efficiency of the latex product can be improved and the aging of the latex product is avoided by adopting a radio frequency drying technology. Therefore, the teraleine latex pillow prepared by the method is good in quality and cleaner.
Description
Technical Field
The invention belongs to the technical field of latex sponges, and particularly relates to a processing technology of a high-quality clean latex pillow.
Background
With the wider and wider application of latex sponges, people have higher and higher requirements on the quality of the sponges. During the production of latex sponges, the latex itself and the small materials may remain in the latex sponge. The telapray Talalay is formed after injection molding, and has the characteristics of high cost, high development difficulty, complex process and low yield, but the manufactured product has an open pore structure and is better in elasticity, air permeability and uniformity. At present, the teralei latex pillow is simply washed by water and dried by an oven after being vulcanized, residues are not fully removed, and the aging of the latex pillow is easily caused by drying by the oven.
Nowadays, people have higher and higher requirements on the quality of latex pillows, and the research and development of high-quality clean type teralei latex pillows are very important.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a processing technology of a high-quality clean latex pillow.
The technical scheme of the invention is as follows: the method comprises the following steps:
s1, blending and ripening; the preparation method comprises the following steps of uniformly stirring raw materials according to a formula, stirring for 0.5-1h, and carrying out pre-vulcanization treatment, wherein the raw materials comprise the following components in parts by weight:
natural latex: 100 parts of (A);
vulcanizing agent: 1-10 parts;
potassium oleate: 1-10 parts;
potassium ricinoleate: 0.5-5 parts;
potassium pyrophosphate: 0.1-5 parts;
0.1-0.5 part of thickening agent;
emulsifier: 1-10 parts;
s2, injection molding, vacuum foaming and freezing; injecting the mixed latex into a mould, vacuumizing and freezing;
s3, vulcanizing; firstly, vulcanizing by adopting heat conducting oil to form foaming latex, cleaning and vulcanizing by adopting ultrasonic hot water, completely vulcanizing and washing a product;
s4, drying; drying by using radio frequency equipment, and then drying by using a blast oven.
In the step S1, the temperature of the prevulcanization latex is 15-25 ℃, and the prevulcanization time is 0.5-1 h.
In the step S2, the freezing temperature is-20 ℃ to-40 ℃, and the vacuumizing time is 4min to 20 min.
In the step S3, firstly, heat conducting oil is adopted for vulcanization, the temperature is 100-140 ℃, the vulcanization time is 4-20 min, and the foaming latex is molded; then ultrasonic hot water is adopted for cleaning and vulcanizing, the water temperature is 80-95 ℃, the ultrasonic frequency is 20-80kHz, and the product is completely vulcanized and washed.
And S4, drying by using radio frequency equipment, wherein the radio frequency heating power is 30-60 kW, and the time is 10-15 min, and then drying by using a blast oven, wherein the drying temperature is 80-130 ℃, and the drying time is 15 min-30 min.
Compared with the prior art, the invention has the beneficial effects that:
after the teralei latex pillow prepared by the method is molded, an ultrasonic hot water cleaning and vulcanizing process is continuously adopted, so that the product is vulcanized more fully, residues and water-soluble components in a latex product can be removed, and the prepared latex pillow is cleaner; meanwhile, the drying efficiency of the latex pillow can be improved by adopting a radio frequency drying technology, and meanwhile, the aging of the latex pillow is avoided. Therefore, the teraleine latex pillow prepared by the method is good in quality and cleaner.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
The invention comprises the following steps:
s1, blending and ripening; the preparation method comprises the following steps of uniformly stirring raw materials according to a formula, stirring for 0.5-1h, and carrying out pre-vulcanization treatment, wherein the raw materials comprise the following components in parts by weight:
natural latex: 100 parts of (A);
vulcanizing agent: 1-10 parts;
potassium oleate: 1-10 parts;
potassium ricinoleate: 0.5-5 parts;
potassium pyrophosphate: 0.1-5 parts;
0.1-0.5 part of thickening agent;
emulsifier: 1-10 parts;
s2, injection molding, vacuum foaming and freezing; injecting the mixed latex into a mould, vacuumizing and freezing;
s3, vulcanizing; firstly, vulcanizing by adopting heat conducting oil to form foaming latex, cleaning and vulcanizing by adopting ultrasonic hot water, completely vulcanizing and washing a product;
s4, drying; drying by using radio frequency equipment, and then drying by using a blast oven.
In the step S1, the temperature of the prevulcanization latex is 15-25 ℃, and the prevulcanization time is 0.5-1 h.
In the step S2, the freezing temperature is-20 ℃ to-40 ℃, and the vacuumizing time is 4min to 20 min.
In the step S3, firstly, heat conducting oil is adopted for vulcanization, the temperature is 100-140 ℃, the vulcanization time is 4-20 min, and the foaming latex is molded; then ultrasonic hot water is adopted for cleaning and vulcanizing, the water temperature is 80-95 ℃, the ultrasonic frequency is 20-80kHz, and the product is completely vulcanized and washed.
And S4, drying by using radio frequency equipment, wherein the radio frequency heating power is 30-60 kW, and the time is 10-15 min, and then drying by using a blast oven, wherein the drying temperature is 80-130 ℃, and the drying time is 15 min-30 min.
After the teralei latex pillow prepared by the method is molded, an ultrasonic hot water cleaning and vulcanizing process is continuously adopted, so that the product is vulcanized more fully, residues and water-soluble components in a latex product can be removed, and the prepared latex pillow is cleaner; meanwhile, the drying efficiency of the latex pillow can be improved by adopting a radio frequency drying technology, and meanwhile, the aging of the latex pillow is avoided.
Between the steps S1 and S2, the method also comprises the steps of preparing the lac resin calcium salt aggregate, introducing the lac resin calcium salt aggregate into the mixed latex for stirring,
wherein the preparation process of the lac resin calcium salt aggregate comprises the following steps: the lac resin sodium salt is prepared into 6wt% lac resin sodium salt solution (namely, the lac resin sodium salt is dissolved in water), and 0.1mol/L CaCl is prepared by distilled water2Slowly stirring the solution at 20 deg.C, and slowly adding CaCl2Mixing the solutions, stirring for 20min, standing at room temperature for 6 hrFiltering to obtain precipitated solid, and freeze-drying to obtain lac resin calcium salt aggregate;
introducing lac resin calcium salt aggregate into the mixed latex before step S2, wherein the lac resin sodium salt is of a quasi-asymmetric Gemini (Gemini) surfactant structure, and Ca is added2+The lac resin is composed of lactone and lactide formed by lac eleostearic acid and chitosan acid, and the lac eleostearic acid is a straight-chain macromolecule and contains a polyhydroxy saturated carbon chain, so that a large number of hydroxyl groups exist on the surface of the lac resin calcium salt, and the adsorption of organic compounds (such as alcohols, amines and the like) is facilitated through the hydrogen bond effect.
Therefore, the produced latex pillow meets the requirements of low odor and low VOC environmental protection.
Example 1
A high-quality clean latex pillow comprises the following steps:
s1, blending and ripening; the preparation method comprises the following steps of uniformly stirring raw materials according to a formula, stirring and curing for 0.5h at the curing temperature of 18 ℃, and carrying out pre-vulcanization treatment, wherein the raw materials comprise the following components in parts by weight:
natural latex: 100 parts of (A);
vulcanizing agent: 6 parts of (1);
potassium oleate: 4 parts of a mixture;
potassium ricinoleate: 2 parts of (1);
potassium pyrophosphate: 2 parts of (1);
0.3 part of thickening agent;
emulsifier: 2 parts of (1);
s2, injection molding, vacuum foaming, freezing. Injecting the mixed latex into a mold, vacuumizing and freezing at-20 deg.C for 6 min.
S3, a vulcanization process; firstly, vulcanizing by adopting heat conducting oil, wherein the temperature is 100 ℃, the vulcanizing time is 6min, forming the foaming latex, cleaning and vulcanizing by adopting ultrasonic hot water, the water temperature is 85 ℃, the ultrasonic frequency is 30kHz, and completely vulcanizing and washing the product;
s4, drying; and (3) drying by using radio frequency equipment, wherein the radio frequency heating power is 40kW, and the time is 10min, and then drying by using a blast oven, wherein the drying temperature is 90 ℃ and the drying time is 20 min.
Example 2
A high-quality clean latex pillow comprises the following steps:
and S1, blending and curing. The preparation method comprises the following steps of uniformly stirring raw materials according to a formula, stirring and curing for 1h at the curing temperature of 20 ℃, and carrying out pre-vulcanization treatment, wherein the raw materials comprise the following components in parts by weight:
natural latex: 100 parts of (A);
vulcanizing agent: 8 parts of a mixture;
potassium oleate: 5 parts of a mixture;
potassium ricinoleate: 2 parts of (1);
potassium pyrophosphate: 2 parts of (1);
0.3 part of thickening agent;
emulsifier: 3 parts of a mixture;
s2, injection molding, vacuum foaming, freezing. Injecting the mixed latex into a mold, vacuumizing and freezing at-30 ℃ for 8 min.
S3, a vulcanization process; firstly, vulcanizing by adopting heat conducting oil, wherein the temperature is 120 ℃, the vulcanizing time is 10min, so that foaming latex is formed, then cleaning and vulcanizing by adopting ultrasonic hot water, the water temperature is 90 ℃, the ultrasonic frequency is 40kHz, and completely vulcanizing and washing a product;
s4, drying; and (3) drying by using radio frequency equipment, wherein the radio frequency heating power is 50kW, and the time is 12min, and then drying by using a blast oven, wherein the drying temperature is 80 ℃ and the drying time is 30 min.
Example 3
A high-quality clean latex pillow comprises the following steps:
s1, blending and ripening; the preparation method comprises the following steps of uniformly stirring raw materials according to a formula, stirring and curing for 1h at the curing temperature of 25 ℃, and carrying out pre-vulcanization treatment, wherein the raw materials comprise the following components in parts by weight:
natural latex: 100 parts of (A);
vulcanizing agent: 9 parts of (1);
potassium oleate: 6 parts of (1);
potassium ricinoleate: 3 parts of a mixture;
potassium pyrophosphate: 2 parts of (1);
0.3 part of thickening agent;
emulsifier: 4 parts of a mixture;
s2, injection molding, vacuum foaming and freezing; injecting the mixed latex into a mold, vacuumizing and freezing at-40 ℃ for 10 min;
and S3, a vulcanization step. Firstly, vulcanizing by adopting heat conducting oil, wherein the temperature is 130 ℃, the vulcanizing time is 14min, forming the foaming latex, cleaning and vulcanizing by adopting ultrasonic hot water, the water temperature is 95 ℃, the ultrasonic frequency is 60kHz, and completely vulcanizing and washing the product;
s4, drying; and (3) drying by using radio frequency equipment, wherein the radio frequency heating power is 60kW, and the time is 15min, and then drying by using a blast oven, wherein the drying temperature is 90 ℃ and the drying time is 30 min.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (5)
1. A processing technology of a high-quality clean latex pillow is characterized by comprising the following steps:
s1, blending and ripening; the preparation method comprises the following steps of uniformly stirring raw materials according to a formula, stirring for 0.5-1h, and carrying out pre-vulcanization treatment, wherein the raw materials comprise the following components in parts by weight:
natural latex: 100 parts of (A);
vulcanizing agent: 1-10 parts;
potassium oleate: 1-10 parts;
potassium ricinoleate: 0.5-5 parts;
potassium pyrophosphate: 0.1-5 parts;
0.1-0.5 part of thickening agent;
emulsifier: 1-10 parts;
s2, injection molding, vacuum foaming and freezing; injecting the mixed latex into a mould, vacuumizing and freezing;
s3, vulcanizing; firstly, vulcanizing by adopting heat conducting oil to form foaming latex, cleaning and vulcanizing by adopting ultrasonic hot water, completely vulcanizing and washing a product;
s4, drying; drying by using radio frequency equipment, and then drying by using a blast oven.
2. The process for manufacturing a high-quality clean latex pillow as claimed in claim 1, wherein the prevulcanization latex temperature in step S1 is 15-25 ℃ and the prevulcanization time is 0.5-1 h.
3. The processing technology of the high-quality clean latex pillow as claimed in claim 1, wherein in step S2, the freezing temperature is-20 ℃ to-40 ℃, and the vacuumizing time is 4min to 20 min.
4. The processing technology of the high-quality clean latex pillow according to claim 1, wherein in step S3, firstly, heat conducting oil is adopted for vulcanization, the temperature is 100-140 ℃, the vulcanization time is 4-20 min, and the foaming latex is molded; then ultrasonic hot water is adopted for cleaning and vulcanizing, the water temperature is 80-95 ℃, the ultrasonic frequency is 20-80kHz, and the product is completely vulcanized and washed.
5. The processing technology of the high-quality clean latex pillow as claimed in claim 1, wherein in step S4, the drying is performed by using a radio frequency device, the radio frequency heating power is 30 to 60kW for 10 to 15min, and then the drying is performed by using a blast oven, the drying temperature is 80 to 130 ℃, and the drying time is 15 to 30 min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010691173.8A CN111660474A (en) | 2020-07-17 | 2020-07-17 | Processing technology of high-quality clean latex pillow |
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| CN202010691173.8A CN111660474A (en) | 2020-07-17 | 2020-07-17 | Processing technology of high-quality clean latex pillow |
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Cited By (3)
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| CN112848019A (en) * | 2020-12-31 | 2021-05-28 | 江苏爱德福乳胶制品有限公司 | Open pore latex production process |
| CN114953317A (en) * | 2022-03-31 | 2022-08-30 | 江苏罡泽智能装备有限公司 | Automation equipment and process for producing tara bud complete set latex product |
| CN115651282A (en) * | 2022-12-14 | 2023-01-31 | 江苏金世缘乳胶制品股份有限公司 | High-performance tara bud natural latex product and preparation process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112848019A (en) * | 2020-12-31 | 2021-05-28 | 江苏爱德福乳胶制品有限公司 | Open pore latex production process |
| CN114953317A (en) * | 2022-03-31 | 2022-08-30 | 江苏罡泽智能装备有限公司 | Automation equipment and process for producing tara bud complete set latex product |
| CN115651282A (en) * | 2022-12-14 | 2023-01-31 | 江苏金世缘乳胶制品股份有限公司 | High-performance tara bud natural latex product and preparation process thereof |
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