PVC frosted glove and preparation method thereof
Treatment and use PVC pulp and foaming water to soak, gel, and drying with PVC pulp and foam water are used to solve the problem of poor breathability and abrasion resistance of existing PVC gloves. PVC scrub gloves with high air permeability, softness, abrasion resistance and tear resistance.
Patent Information
- Application Number
- CN202411492919.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-01-24
AI Technical Summary
Existing PVC disposable gloves have poor breathability, long-term wear will cause the sweat on the hand to be involuntized, and the wear resistance and tear resistance are insufficient.
By pre-treating the glove core, using a dipping slurry prepared from PVC slurry and foaming water for dipping, pouring and drying, the prepared PVC frosted gloves have uniform surface foaming and improved softness and breathability. , wear resistance and tear resistance.
The high air permeability, softness, abrasion resistance and tear resistance of PVC matte gloves are realized. The flexibility reaches level 3 or more, and the abrasion resistance and tear resistance performance have been significantly improved.
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Abstract
Description
Technical Field
[0001] The invention relates to the technical field of security products, and in particular to a PVC frosted glove and a preparation method thereof. Background Art
[0002] PVC gloves are made of PVC paste through a special process. Existing PVC disposable gloves have good flexibility and touch, but they fit the hands tightly. Long-term wearing will cause the sweat on the hands to be unable to volatilize, and there is a problem of poor air permeability. Based on this, there are currently existing literature reports on a method for preparing PVC foam gloves by dipping PVC slurry in the outer layer of knitted gloves. For example, the patent document CN108673806A records a preparation method of thirteen-needle polyester PVC foam gloves. The principle is that the cross-linked elastic swelling particles that fully absorb the plasticizer are dispersed in the low-viscosity PVC resin paste. After the ceramic hand mold is dipped in the paste, the viscosity adjusting agent is volatilized by baking. Since the particle size of the cross-linked elastic swelling particles is much larger than the thickness of the PVC gloves, the outer surface of the hand mold dipped in PVC is dispersed with protruding points, which are conducive to the formation of air flow between the hand and the gloves, and improve the air permeability and comfort of the PVC gloves. However, the gloves prepared by the hand mold have insufficient wear resistance and tear resistance. Summary of the invention
[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a PVC frosted glove and a preparation method thereof, wherein the glove has good air permeability, softness, wear resistance and tear resistance.
[0004] The objective of the present invention is achieved through the following technical solutions:
[0005] In a first aspect, the present invention provides a method for preparing PVC frosted gloves, comprising the following steps:
[0006] S1. Pretreatment of glove core: soak the glove core in sodium hydroxide solution and hydrogen peroxide solution in sequence, then rinse with clean water and dry;
[0007] S2. Preparation of PVC slurry: Mix PVC paste powder, plasticizer, liquid nitrile rubber, stabilizer, diluent and surfactant, stir evenly to obtain PVC slurry;
[0008] S3, pre-preparation of foaming water: mixing deionized water, auxiliary surfactant, foaming aid and thickener, stirring evenly to obtain foaming water;
[0009] S4, preparation of dipping slurry: adding the foaming water prepared in step S3 to the PVC slurry prepared in step S2, and then stirring for more than 30 minutes to obtain dipping slurry;
[0010] S5, dipping: dipping the glove core pretreated in step S1 into the dipping slurry prepared in step S4 for 1-5 minutes;
[0011] S6, glue coating: the glove core after dipping is subjected to glue coating for 10-15 minutes;
[0012] S7. Drying: Dry the glove core after the glue coating at 160-180°C for 15-20 minutes to obtain the PVC frosted gloves.
[0013] As a preferred solution, in step S1, the mass fraction of the sodium hydroxide solution is 1-3%; the mass fraction of the hydrogen peroxide solution is 4-6%.
[0014] As a preferred embodiment, in step S2, the mass ratio of the PVC paste powder to the plasticizer is 1:1-1.2.
[0015] As a preferred solution, the amount of the liquid nitrile rubber added is 1-3% of the total mass of the PVC paste powder and the plasticizer.
[0016] As a preferred solution, the amount of the stabilizer added is 0.5-1% of the total mass of the PVC paste powder and the plasticizer.
[0017] As a preferred solution, the added amount of the diluent is 5-15% of the total mass of the PVC paste powder and the plasticizer.
[0018] As a preferred solution, the amount of the surfactant added is 0.5-2% of the total mass of the PVC paste powder and the plasticizer. In the early experimental studies of the present invention, it was found that when the amount of the surfactant added is too high or too low, it will have an adverse effect on the performance of the prepared PVC frosting gloves.
[0019] As a preferred embodiment, the plasticizer is selected from at least one of dioctyl phthalate, dibutyl phthalate, epoxy soybean oil, diisononyl cyclohexane 1,2-dicarboxylate, tri-n-butyl citrate, and dioctyl terephthalate.
[0020] As a preferred embodiment, the stabilizer is a calcium zinc stabilizer.
[0021] As a preferred embodiment, the diluent is selected from at least one of 2,2-dichloropropane, acetone and n-butanol.
[0022] As a preferred embodiment, the surfactant is selected from at least one of alkylphenol polyoxyethylene ether and fatty acid polyoxyethylene ester.
[0023] As a further preferred embodiment, the surfactant is a combination of alkylphenol polyoxyethylene ether and fatty acid polyoxyethylene ester. More preferably, the mass ratio of alkylphenol polyoxyethylene ether to fatty acid polyoxyethylene ester is 1:0.5-1.5.
[0024] As a preferred solution, the preparation of the PVC slurry in step S2 further includes the step of adding titanium dioxide and color paste. The color paste can be added to prepare PVC frosted gloves of different colors, and the addition of titanium dioxide can make the color uniform and free of floating color.
[0025] As a further preferred solution, the amount of titanium dioxide added is 0.5-1% of the total mass of the PVC paste powder and the plasticizer; the amount of color paste added is 1.5-3% of the total mass of the PVC paste powder and the plasticizer.
[0026] As a preferred solution, in step S3, the foaming water is prepared according to the following mass ratio of raw materials: the mass ratio of deionized water, auxiliary surfactant, foaming aid, and thickener is 100: 1-4: 1-4: 1-4. In the early experimental research of the present invention, it was found that when the amount of auxiliary surfactant added is too high or too low, it will have an adverse effect on the performance of the prepared PVC frosting gloves.
[0027] As a preferred embodiment, the auxiliary surfactant is selected from at least one of sodium diisobutylnaphthalene sulfonate and alkyl phosphate diester salt.
[0028] As a preferred embodiment, the foaming aid is selected from at least one of urea and ammonium bicarbonate.
[0029] As a preferred embodiment, the thickener is selected from at least one of casein and CMC.
[0030] As a preferred solution, the step S3 of preparing the foaming water further includes the step of adding a preservative, which can prevent the foaming water from deteriorating and prolong the storage time of the foaming water.
[0031] As a further preferred embodiment, the preservative is selected from at least one of kasson oil, sodium benzoate and potassium sorbate; the added weight portion of the preservative is 0.2-0.5 parts.
[0032] As a preferred embodiment, in step S4, the mass ratio of the PVC slurry to the foaming water is 100:25-35.
[0033] As a preferred solution, in step S4, the viscosity of the prepared dipping slurry is 3000-5000 mpa·s, and the lipophilic-hydrophilic balance value is 6-7.
[0034] In a second aspect, the present invention provides a PVC scrub glove prepared according to the aforementioned method.
[0035] Compared with the prior art, the present invention has the following beneficial effects:
[0036] 1) The present invention pre-treats and removes oil from the glove core, then performs dipping in a dipping slurry prepared from PVC slurry and foaming water, and then performs dipping and drying. The prepared PVC frosted gloves have uniform foaming on the surface, high softness, good air permeability, and super high wear resistance and tear resistance. According to the test, the prepared PVC frosted gloves have a flexibility (EN21420) of more than level 3, a wear resistance (EN388) of more than level 3, and a tear resistance of more than level 2.
[0037] 2) The present invention can further improve the performance of the PVC frosted gloves by further selecting the types of specific surfactants and auxiliary surfactants, and screening the proportions. The flexibility (EN21420) of the PVC frosted gloves reaches level 4-5, the wear resistance (EN388) reaches level 3-4, and the tear resistance reaches level 3-4. DETAILED DESCRIPTION
[0038] Unless otherwise defined, technical terms or scientific terms used in this specification and claims shall have the ordinary meanings understood by persons with ordinary skills in the technical field to which this application belongs. All values from the lowest value to the highest value listed herein refer to all values obtained by incrementing the lowest value to the highest value by one unit when the difference between the lowest value and the highest value is more than two units.
[0039] The specific implementation methods of the present application will be described below. It should be noted that in the specific description of these implementation methods, in order to provide a concise description, it is impossible for this specification to provide a detailed description of all the features of the actual implementation methods. Without departing from the spirit and scope of the present application, those skilled in the art may modify and replace the implementation methods of the present application, and the resulting implementation methods are also within the scope of protection of the present application.
[0040] Example
[0041] The embodiments of the present application will be described in detail below. This embodiment is implemented on the premise of the technical solution of the present application, and a detailed implementation method and a specific operation process are given, but the protection scope of the present application is not limited to the following embodiments.
[0042] The equipment used in the specific embodiments of the present invention are all conventional equipment for producing and preparing gloves, and the raw materials used are also prepared or purchased by conventional methods, and the present invention does not make any special limitations.
[0043] Example 1
[0044] This embodiment provides a method for preparing PVC frosted gloves, comprising the following steps:
[0045] 1) Glove core preparation: polyester and spandex blended yarn is used to knit into 15-needle knitted glove blanks;
[0046] 2) Pretreatment of glove core: soak the glove core in a 2% sodium hydroxide solution for 1 hour to remove oil, then soak it in a 5% hydrogen peroxide solution for 1 hour, then rinse with clean water and dry;
[0047] 3) Preparation of PVC slurry: PVC paste powder (EXT) and plasticizer (dibutyl phthalate) are mixed in a mass ratio of 1:1, and then liquid nitrile rubber (LNBR-40) is added in an amount of 2% of the total mass of the PVC paste powder and the plasticizer), calcium zinc stabilizer (cz101) is added in an amount of 1% of the total mass of the PVC paste powder and the plasticizer), diluent (acetone, added in an amount of 10% of the total mass of the PVC paste powder and the plasticizer), surfactant 1 (alkylphenol polyoxyethylene ether NP-4, added in an amount of 1% of the total mass of the PVC paste powder and the plasticizer), surfactant 2 (fatty acid polyoxyethylene ester A-103, added in an amount of 0.5% of the total mass of the PVC paste powder and the plasticizer) are mixed and stirred evenly to obtain PVC slurry;
[0048] 4) Preparing foaming water: according to the mass ratio of deionized water, auxiliary surfactant, foaming aid and thickener being 100:2:3:4, add auxiliary surfactant (alkyl phosphate diester salt MDH), foaming aid (ammonium bicarbonate) and thickener (casein) into deionized water, stir evenly to obtain foaming water;
[0049] 5) Preparation of dipping slurry: According to the mass ratio of PVC slurry to foaming water of 100:25, the foaming water is slowly added to the PVC slurry using a peristaltic pump while the PVC slurry is being stirred at high speed. After the addition is completed, stirring is continued for 40 minutes to obtain the dipping slurry. The viscosity of the dipping slurry is 3000 mpa·s (the viscosity test method used is a rotational viscometer test at a test temperature of 25° C.), and the hydrophilic-lipophilic balance value is 6 (the test method used is an emulsification experiment reference method);
[0050] 6) Dipping: Dip the glove core pretreated in step 2) into the dipping slurry prepared in step 5) for 3 minutes;
[0051] 7) Gluing: Glue the glove core after dipping for 10 minutes;
[0052] 8) Drying: Dry the glove core after gluing at 180°C for 15 minutes to obtain PVC frosted gloves.
[0053] Example 2
[0054] This embodiment provides a method for preparing PVC frosted gloves, comprising the following steps:
[0055] 1) Glove core preparation: Use polyester and spandex blended yarn to knit into 18-needle knitted glove blanks;
[0056] 2) Pretreatment of glove core: soak the glove core in a 3% sodium hydroxide solution for 1 hour to remove oil, then soak it in a 4% hydrogen peroxide solution for 1 hour, then rinse with clean water and dry;
[0057] 3) Preparation of PVC slurry: PVC paste powder (EXT) and plasticizer (dibutyl phthalate) are mixed in a mass ratio of 1:1.2, and then liquid nitrile rubber (LNBR-40) is added, the addition amount is 1% of the total mass of PVC paste powder and plasticizer), calcium zinc stabilizer (cz101), the addition amount is 0.5% of the total mass of PVC paste powder and plasticizer), diluent (acetone, the addition amount is 15% of the total mass of PVC paste powder and plasticizer), surfactant 1 (alkylphenol polyoxyethylene ether NP-4, the addition amount is 1% of the total mass of PVC paste powder and plasticizer), surfactant 2 (fatty acid polyoxyethylene ester A-103, the addition amount is 1% of the total mass of PVC paste powder and plasticizer) are mixed, stirred evenly, and PVC slurry is obtained;
[0058] 4) Preparing foaming water: according to the mass ratio of deionized water, auxiliary surfactant, foaming aid and thickener being 100:4:1:2, add auxiliary surfactant (alkyl phosphate diester salt MDH), foaming aid (ammonium bicarbonate) and thickener (casein) into deionized water, stir evenly, and obtain foaming water;
[0059] 5) Preparation of dipping slurry: According to the mass ratio of PVC slurry to foaming water of 100:35, the foaming water was slowly added to the PVC slurry using a peristaltic pump while the PVC slurry was stirred at high speed. After the addition was completed, stirring was continued for 50 minutes to obtain the dipping slurry. The viscosity of the dipping slurry was 3200mpa·s, and the hydrophilic-lipophilic balance value was 7;
[0060] 6) Dipping: Dip the glove core pretreated in step 2) into the dipping slurry prepared in step 5) for 5 minutes;
[0061] 7) Gluing: Glue the glove core after dipping for 15 minutes;
[0062] 8) Drying: Dry the glove core after gluing at 160°C for 20 minutes to obtain PVC frosted gloves.
[0063] Example 3
[0064] This embodiment provides a method for preparing PVC frosted gloves, comprising the following steps:
[0065] 1) Glove core preparation: polyester and spandex blended yarn is used to knit into 15-needle knitted glove blanks;
[0066] 2) Pretreatment of glove core: soak the glove core in a 1% sodium hydroxide solution for 2 hours to remove oil, then soak it in a 6% hydrogen peroxide solution for 1 hour, then rinse with clean water and dry;
[0067] 3) Preparation of PVC slurry: PVC paste powder (PR) and plasticizer (dioctyl terephthalate) are mixed in a mass ratio of 1:1, and then liquid nitrile rubber (LNBR-40, added in an amount of 3% of the total mass of PVC paste powder and plasticizer), calcium zinc stabilizer (cz101, added in an amount of 0.8% of the total mass of PVC paste powder and plasticizer), diluent (acetone, added in an amount of 5% of the total mass of PVC paste powder and plasticizer), surfactant 1 (alkylphenol polyoxyethylene ether NP-4, added in an amount of 0.2% of the total mass of PVC paste powder and plasticizer), surfactant 2 (fatty acid polyoxyethylene ester A-103, added in an amount of 0.3% of the total mass of PVC paste powder and plasticizer) are added, mixed, and stirred evenly to obtain PVC slurry;
[0068] 4) Preparing foaming water: according to the mass ratio of deionized water, auxiliary surfactant, foaming aid and thickener being 100:1:4:1, add auxiliary surfactant (sodium diisobutylnaphthalene sulfonate BX), foaming aid (urea) and thickener (CMC) into deionized water, stir evenly, and obtain foaming water;
[0069] 5) Preparation of dipping slurry: According to the mass ratio of PVC slurry to foaming water of 100:30, the foaming water was slowly added to the PVC slurry using a peristaltic pump while the PVC slurry was stirred at high speed. After the addition was completed, stirring was continued for 40 minutes to obtain the dipping slurry. The viscosity of the dipping slurry was 3800mpa·s, and the hydrophilic-lipophilic balance value was 7;
[0070] 6) Dipping: Dip the glove core pretreated in step 2) into the dipping slurry prepared in step 5) for 2 minutes;
[0071] 7) Gluing: Glue the glove core after dipping for 12 minutes;
[0072] 8) Drying: Dry the glove core after gluing at 160°C for 18 minutes to obtain PVC frosted gloves.
[0073] Example 4
[0074] This embodiment provides a method for preparing PVC frosted gloves, comprising the following steps:
[0075] 1) Glove core preparation: polyester and spandex blended yarn is used to knit into 15-needle knitted glove blanks;
[0076] 2) Pretreatment of glove core: soak the glove core in a 2% sodium hydroxide solution for 1 hour to remove oil, then soak it in a 5% hydrogen peroxide solution for 1 hour, then rinse with clean water and dry;
[0077] 3) Preparation of PVC slurry: PVC paste powder (EXT) and plasticizer (tri-n-butyl citrate) are mixed in a mass ratio of 1:1.1, and then liquid nitrile rubber (LNBR-40, added in an amount of 2% of the total mass of PVC paste powder and plasticizer), calcium zinc stabilizer (cz101, added in an amount of 0.8% of the total mass of PVC paste powder and plasticizer), titanium dioxide (R-996, added in an amount of 1% of the total mass of PVC paste powder and plasticizer), color paste (UY257, added in an amount of 2% of the total mass of PVC paste powder and plasticizer), diluent (n-butanol, added in an amount of 8% of the total mass of PVC paste powder and plasticizer), surfactant 1 (alkylphenol polyoxyethylene ether NP-4, added in an amount of 0.5% of the total mass of PVC paste powder and plasticizer), surfactant 2 (fatty acid polyoxyethylene ester A-103, added in an amount of 0.5% of the total mass of PVC paste powder and plasticizer) are added, mixed, and stirred evenly to obtain PVC slurry;
[0078] 4) Preparing foaming water: according to the mass ratio of deionized water, auxiliary surfactant, foaming aid, thickener and preservative of 100:2:2:3:0.3, add preservative (sodium benzoate), auxiliary surfactant (sodium diisobutylnaphthalene sulfonate BX), foaming aid (ammonium bicarbonate) and thickener (CMC) into deionized water, stir evenly to obtain foaming water;
[0079] 5) Preparation of dipping slurry: According to the mass ratio of PVC slurry to foaming water of 100:35, the foaming water is slowly added to the PVC slurry using a peristaltic pump while the PVC slurry is stirred at high speed. After the addition is completed, stirring is continued for 40 minutes to obtain the dipping slurry. The viscosity of the dipping slurry is 4000mpa·s, and the hydrophilic-lipophilic balance value is 6.5;
[0080] 6) Dipping: Dip the glove core pretreated in step 2) into the dipping slurry prepared in step 5) for 1 minute;
[0081] 7) Gluing: Glue the glove core after dipping for 10 minutes;
[0082] 8) Drying: Dry the glove core after gluing at 170°C for 16 minutes to obtain PVC frosted gloves.
[0083] Example 5
[0084] This embodiment provides a method for preparing PVC frosted gloves, and the specific steps are basically the same as those in Example 3, except that: in step 3), the amount of surfactant 1 added is 0.5% of the total mass of PVC paste powder and plasticizer, and surfactant 2 is not added. The viscosity of the prepared dipping slurry is 4200mpa·s, and the hydrophilic-lipophilic balance value is 7.
[0085] Example 6
[0086] This embodiment provides a method for preparing PVC frosted gloves, and the specific steps are basically the same as those in Example 3, except that: in step 3), the amount of surfactant 2 added is 0.5% of the total mass of PVC paste powder and plasticizer, and surfactant 1 is not added. The viscosity of the prepared dipping slurry is 4500mpa·s, and the hydrophilic-lipophilic balance value is 6.5.
[0087] Example 7
[0088] This embodiment provides a method for preparing PVC frosted gloves, and the specific steps are basically the same as those in Example 1, except that: in step 3), the amount of surfactant 1 added is 0.5% of the total mass of the PVC paste powder and the plasticizer, and the amount of surfactant 1 added is 1% of the total mass of the PVC paste powder and the plasticizer. The viscosity of the prepared dipping slurry is 5000 mpa·s, and the hydrophilic-lipophilic balance value is 7.
[0089] Comparative Example 1
[0090] This comparative example provides a method for preparing PVC frosted gloves, which is basically the same as the preparation method of Example 4, except that in this comparative example, no auxiliary surfactant is added in step 4).
[0091] Comparative Example 2
[0092] This comparative example provides a method for preparing PVC frosted gloves, which is basically the same as the preparation method of Example 4, except that in this comparative example, the auxiliary surfactant added in step 3) is sodium methylene dinaphthalene sulfonate (MF).
[0093] Comparative Example 3
[0094] This comparative example provides a method for preparing PVC frosted gloves, which is basically the same as the preparation method of Example 4, except that in this comparative example, the auxiliary surfactant added in step 3) is an alkyl phosphate monoester salt (FET345).
[0095] Comparative Example 4
[0096] This comparative example provides a method for preparing PVC frosted gloves, which is basically the same as the preparation method of Example 2, except that in this comparative example, the surfactant 1 added in step 3) is fatty alcohol polyoxyethylene ether (emulsifier 0-3).
[0097] Comparative Example 5
[0098] This comparative example provides a method for preparing PVC frosted gloves, which is basically the same as the preparation method in Example 1, except that in this comparative example, in step 5), the mass ratio of PVC slurry to foaming water is 100:15.
[0099] Comparative Example 6
[0100] This comparative example provides a method for preparing PVC frosted gloves, which is basically the same as the preparation method of Example 3, except that in this comparative example, in step 5), the mass ratio of PVC slurry to foaming water is 100:40.
[0101] Performance Testing
[0102] The PVC frosted gloves prepared in each embodiment and comparative example were tested for flexibility, wear resistance and tear resistance, the flexibility grade was tested according to the EN21420 standard method, and the wear resistance and tear resistance were tested according to the EN388:2016 method. The test results are shown in Table 1 below.
[0103] Table 1
[0104]
[0105]
[0106] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.
Claims
1. A method for preparing PVC frosted gloves, characterized in that: The following steps are involved: S1. Pretreatment of glove core: soak the glove core in sodium hydroxide solution and hydrogen peroxide solution in sequence, then rinse with clean water and dry; S2. Preparation of PVC slurry: Mix PVC paste powder, plasticizer, liquid nitrile rubber, stabilizer, diluent and surfactant, stir evenly to obtain PVC slurry; S3, pre-preparation of foaming water: deionized water, auxiliary surfactant, foaming aid and thickener are mixed and stirred evenly to obtain foaming water; S4, preparation of dipping slurry: adding the foaming water prepared in step S3 to the PVC slurry prepared in step S2, and then stirring for more than 30 minutes to obtain dipping slurry; S5, dipping: dipping the glove core pretreated in step S1 into the dipping slurry prepared in step S4 for 1-5 minutes; S6, glue coating: the glove core after dipping is subjected to glue coating for 10-15 minutes; S7. Drying: Dry the glove core after the glue coating at 160-180°C for 15-20 minutes to obtain the PVC frosted gloves.
2. The method for preparing PVC frosted gloves according to claim 1, characterized in that: In step S1, the mass fraction of the sodium hydroxide solution is 1-3%; the mass fraction of the hydrogen peroxide solution is 4-6%.
3. The method for preparing PVC frosted gloves according to claim 1, characterized in that: In step S2, the mass ratio of the PVC paste powder to the plasticizer is 1:1-1.2; The amount of the liquid nitrile rubber added is 1-3% of the total mass of the PVC paste powder and the plasticizer; The amount of the stabilizer added is 0.5-1% of the total mass of the PVC paste powder and the plasticizer; The amount of the diluent added is 5-15% of the total mass of the PVC paste powder and the plasticizer; The added amount of the surfactant is 0.5-2% of the total mass of the PVC paste powder and the plasticizer.
4. The method for preparing PVC frosted gloves according to claim 1 or 3, characterized in that: The plasticizer is selected from at least one of dioctyl phthalate, dibutyl phthalate, epoxy soybean oil, diisononyl cyclohexane 1,2-dicarboxylate, tri-n-butyl citrate, and dioctyl terephthalate; The stabilizer is a calcium zinc stabilizer.
5. The method for preparing PVC frosted gloves according to claim 1 or 3, characterized in that: The diluent is selected from at least one of 2,2-dichloropropane, acetone, and n-butanol; The surfactant is selected from at least one of alkylphenol polyoxyethylene ether and fatty acid polyoxyethylene ester.
6. The method for preparing PVC frosted gloves according to claim 1, characterized in that: In step S3, the foaming water is prepared according to the mass ratio of the following raw materials: the mass ratio of deionized water, auxiliary surfactant, foaming aid and thickener is 100:1-4:1-4:1-4.
7. The method for preparing PVC frosted gloves according to claim 1 or 6, characterized in that: The auxiliary surfactant is selected from at least one of sodium diisobutylnaphthalene sulfonate and alkyl phosphate diester salt; The foaming aid is selected from at least one of urea and ammonium bicarbonate; The thickener is selected from at least one of casein and CMC.
8. The method for preparing PVC frosted gloves according to claim 1, characterized in that: In step S4, the mass ratio of the PVC slurry to the foaming water is 100:25-35.
9. The method for preparing PVC frosted gloves according to claim 1, characterized in that: In step S4, the prepared dipping slurry has a viscosity of 3000-5000 mpa·s and a lipophilic-hydrophilic balance value of 6-7.
10. A PVC frosting glove prepared according to the method according to any one of claims 1 to 9.
Citation Information
Patent Citations
Preparation method of 13-needle polyethylene terephthalate PVC foamed glove
CN108673806A