PVC gloves and preparation method thereof

Abstract

The invention relates to the technical field of plastic glove production, in particular to a PVC glove and a preparation method thereof. The preparation method of the PVC gloves comprises the following steps: A) mixing PVC paste resin, a plasticizer, a stabilizer and a viscosity reducer to obtain slurry; the plasticizer comprises butyl octyl terephthalate; b) soaking a glove model in the slurry, and baking and plasticizing to obtain a hand model coated with a glue film; and C) dipping the hand mold coated with the adhesive film into polyurethane slurry, and baking and forming to obtain the PVC gloves. The tensile force of the PVC glove prepared by the invention is excellent. In addition, the PVC glove prepared by the invention has the advantages of lower plasticizing temperature, less viscosity reducer, lower cost, less carbon emission and obvious market competitiveness advantage.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic gloves production, and in particular to a PVC glove and a preparation method thereof. Background Art

[0002] Disposable PVC gloves are an emerging industry that originated in the United States and gradually developed in Japan. Compared with nitrile gloves, PVC gloves have a more prominent cost advantage, are comfortable to wear, and have good protective effects. They occupy a large market share in disposable protective gloves. At present, China is the world's largest supplier of PVC gloves. The main consumer population of PVC gloves is concentrated in industrially developed countries such as the United States, Europe, and Japan. They are widely used in medical examinations, nursing, food processing, fast food services and other fields. With the increasing domestic consumption level, more and more industries such as the medical industry and the catering industry have begun to pay more attention to the important role of wearing gloves. Gloves are increasingly entering the daily lives of consumers. The consumption of gloves in the domestic market share is showing a rapid growth trend, and the PVC glove market is gradually growing.

[0003] However, affected by the recent years, the global economic recovery is far less than expected. Although gloves, as daily consumables, are not facing the risk of elimination due to consumption downgrade, gloves, as disposable consumables, have become the most concerned by the market. At the same time, carbon emissions in the production process cannot be ignored. How to optimize the production process of PVC gloves, reduce the cost of gloves and reduce carbon emissions is the development direction of the entire industry. Summary of the invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a PVC glove and a preparation method thereof. The PVC glove prepared by the present invention has excellent mechanical properties, low raw material cost and low carbon emissions.

[0005] The present invention provides a method for preparing PVC gloves, comprising the following steps:

[0006] A) mixing PVC paste resin, a plasticizer, a stabilizer and a viscosity reducer to obtain a slurry; wherein the plasticizer comprises butyl octyl terephthalate;

[0007] B) dipping the glove model into the slurry, and then baking and plasticizing the glove model to obtain a hand model covered with a film;

[0008] C) dipping the hand mold covered with the adhesive film into polyurethane slurry, and baking and molding to obtain PVC gloves.

[0009] Preferably, in step A), the stabilizer comprises a calcium zinc stabilizer; and the viscosity reducer comprises D70.

[0010] Preferably, in step A), the mass ratio of the PVC paste resin, the plasticizer, the stabilizer and the viscosity reducer is 100:50-100:0.5-2:15-45.

[0011] Preferably, in step A), the mixing temperature is 15 to 45° C., and the mixing time is 1 to 4 hours.

[0012] Preferably, in step A), the mixing further comprises vacuum degassing;

[0013] The temperature of the vacuum degassing is 15 to 40° C., and the time of the vacuum degassing is 1 to 3 hours.

[0014] Preferably, in step B), the temperature of the glove former during immersion is 65-90° C., and the immersion time is 2-10 seconds.

[0015] Preferably, in step B), the temperature of baking and plasticizing is 175-215° C., and the time is 5-9 minutes.

[0016] Preferably, in step C), the temperature of the hand mold covered with the adhesive film during immersion is 110-140° C., and the immersion time is 2-10 seconds.

[0017] Preferably, in step C), the baking temperature is 120-170° C., and the baking time is 0.5-2 min.

[0018] The present invention also provides a PVC glove prepared by the preparation method described above.

[0019] The present invention provides a method for preparing PVC gloves, comprising the following steps: A) mixing PVC paste resin, plasticizer, stabilizer and viscosity reducer to obtain slurry; the plasticizer includes butyl octyl terephthalate; B) dipping the glove model in the slurry, baking and plasticizing to obtain a hand model covered with a film; C) dipping the hand model covered with a film in polyurethane slurry, baking and molding to obtain PVC gloves. The present invention adopts a specific plasticizer, and cooperates with PVC paste resin, stabilizer and viscosity reducer to obtain a slurry of glove raw materials, then immerses the hand model in the slurry, bakes and plasticizes to obtain a hand model covered with a film; then immerses the hand model covered with a film in polyurethane slurry, bakes and molds to obtain PVC gloves. The PVC gloves prepared by the present invention have better tensile force. In addition, compared with ordinary DOTP plasticizers, butyl octyl terephthalate has a low molecular weight and high plasticizing efficiency under the same mass. The plasticizing temperature of the PVC gloves prepared by the present invention is lower, less viscosity reducer is used, the cost is lower, the carbon emission is less, and the market competitiveness advantage is obvious. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The present invention provides a method for preparing PVC gloves, comprising the following steps:

[0022] A) mixing PVC paste resin, a plasticizer, a stabilizer and a viscosity reducer to obtain a slurry; wherein the plasticizer comprises butyl octyl terephthalate;

[0023] B) dipping the glove model into the slurry, and then baking and plasticizing the glove model to obtain a hand model covered with a film;

[0024] C) dipping the hand mold covered with the adhesive film into polyurethane slurry, and baking and molding to obtain PVC gloves.

[0025] In the present invention, the plasticizer is butyl octyl terephthalate. The present invention has no special restrictions on the source of the butyl octyl terephthalate, which can be commercially available. In certain embodiments of the present invention, the butyl octyl terephthalate is butyl octyl terephthalate produced by Shandong Langhui Petrochemical Co., Ltd.

[0026] In certain embodiments of the present invention, the viscosity reducer comprises D70.

[0027] In certain embodiments of the present invention, the stabilizer comprises a calcium zinc stabilizer. In certain embodiments of the present invention, the calcium zinc stabilizer is Nan Ya calcium zinc 46P and / or Fa Ai SBA-203CZ-G.

[0028] In certain embodiments of the present invention, the mass ratio of the PVC paste resin, plasticizer, stabilizer and viscosity reducer is 100:50-100:0.5-2:15-45; for example, 100:50:0.5:20, 100:65:1:17, 100:75:1.5:19, 100:90:1:35.

[0029] The present invention firstly mixes PVC paste resin, plasticizer, stabilizer and viscosity reducer to obtain slurry.

[0030] In some embodiments of the present invention, the mixing temperature is 15-45°C, such as 15°C, 30°C, 40°C, 45°C; the mixing time is 1-4h, such as 4h, 2h, 1h. The plasticizer in the present invention has a low plasticizing temperature. If the temperature is too high during mixing, it will cause pre-plasticization and cause uneven paste. The plasticizer has low viscosity and is easy to mix, and the mixing time can be shortened.

[0031] In certain embodiments of the present invention, the mixing is stirring. The present invention has no particular limitation on the stirring method of the stirring and mixing, and any stirring method known to those skilled in the art can be used. In certain embodiments of the present invention, the mixing is performed in a batching tank.

[0032] In certain embodiments of the present invention, the mixing further includes vacuum degassing. The present invention has no special restrictions on the vacuum degree of the vacuum degassing, and the vacuum degree of vacuum degassing well known to those skilled in the art can be used. In an embodiment of the present invention, the temperature of the vacuum degassing is 15 to 40°C, such as 15°C, 30°C, 40°C; the time of the vacuum degassing is 1 to 3h, such as 3h, 2h, 1h.

[0033] After obtaining the slurry, the glove model is immersed in the slurry, taken out, baked and plasticized to obtain a hand model covered with a film.

[0034] In certain embodiments of the present invention, the temperature of the glove former during immersion is 65-90° C., such as 70° C., 80° C., or 90° C.; and the immersion time is 2-10 seconds, such as 6 seconds or 4 seconds.

[0035] In an embodiment of the present invention, the glove model is a ceramic hand model; the baking and plasticizing temperature is 175-215° C., such as 215° C., 175° C., 185° C., and 205° C.; and the time is 5-9 minutes, such as 320s, 540s, 420s, and 360s.

[0036] The baking and plasticizing equipment is an oven.

[0037] After obtaining the hand mold covered with the adhesive film, the hand mold covered with the adhesive film is immersed in polyurethane slurry, taken out, and baked to obtain PVC gloves.

[0038] In some embodiments of the present invention, the hand model covered with adhesive film is further cooled before being immersed in the polyurethane slurry. The temperature after cooling is the temperature of the hand model covered with adhesive film during immersion. In some embodiments of the present invention, the cooling method is natural cooling.

[0039] In certain embodiments of the present invention, the temperature of the hand mold covered with the adhesive film during immersion is 110-140° C., such as 120° C., 110° C., 130° C., 140° C.; the immersion time is 2-10 s, such as 5s, 8s, 2s.

[0040] The present invention has no particular limitation on the preparation method of the polyurethane slurry, and the preparation method of the polyurethane slurry well known to those skilled in the art can be used. In certain embodiments of the present invention, the polyurethane slurry is prepared by mixing polyurethane and softened water. Specifically, it can be prepared by mixing Lin's 191PU and softened water in a mass ratio of 1:20.

[0041] In an embodiment of the present invention, the baking temperature is 120-170°C, such as 120°C, 130°C, 150°C, 170°C; the baking time is 0.5-2 min, such as 1.5 min, 1.0 min, 0.5 min.

[0042] In some embodiments of the present invention, after the baking, the process further includes cooling, curling and demoulding. In some embodiments, the cooling is natural cooling to room temperature.

[0043] The present invention has no particular limitation on the sources of the raw material components used, and they can be commercially available.

[0044] The present invention also provides a PVC glove prepared by the preparation method described above. The PVC glove of the present invention has better tensile strength.

[0045] The present invention adopts a specific plasticizer, a PVC paste resin, a stabilizer and a viscosity reducer to prepare a slurry of glove raw materials, then immerses the hand mold in the slurry, bakes and plasticizes to obtain a hand mold covered with a film; then immerses the hand mold covered with a film in a polyurethane slurry, bakes and forms to obtain a PVC glove. The PVC gloves prepared by the present invention have better tensile strength. In addition, the plasticizing temperature of the PVC gloves prepared by the present invention is lower, less viscosity reducer is used, the cost is lower, the carbon emission is less, and the market competitiveness advantage is obvious.

[0046] In order to further illustrate the present invention, a PVC glove and a preparation method thereof provided by the present invention are described in detail below in conjunction with embodiments, but they should not be construed as limiting the scope of protection of the present invention.

[0047] The raw materials used in the following examples are all commercially available, and the polyurethane slurries are prepared by mixing Lin's 191PU and softened water in a mass ratio of 1:20.

[0048] Comparative Example 1

[0049] 100 parts by weight of PVC paste resin, 50 parts by weight of Butyl Octyl Citrate , 0.5 parts by weight of Nan Ya calcium zinc 46P and 20 parts by weight of viscosity reducer D70 The mixture was put into a batching tank, stirred and mixed at 15°C for 5 hours, and vacuum degassed at 15°C for 3 hours to obtain a slurry.

[0050] The ceramic hand mold was heated to 70°C, then immersed in the slurry for 6 seconds, taken out, and placed in an oven. Bake at 220℃ Bake for 320 seconds for plasticization , and obtain a hand model covered with a film.

[0051] After the hand mold covered with the film comes out of the oven, it is naturally cooled to 120°C, then immersed in polyurethane slurry for 5 seconds, taken out, baked in the oven at 120°C for 1.5 minutes, naturally cooled to room temperature, curled and demolded to obtain PVC gloves.

[0052] Six slice samples were then cut from the obtained PVC gloves, and the tensile strength of the slice samples was tested according to the EN455 standard. The test results are shown in Table 1.

[0053] Table 1 Physical property test results of PVC gloves of Comparative Example 1 of the present invention

[0054] Slice thickness (mm) Tension(N) 1 0.070 5.03 2 0.071 4.92 3 0.071 4.39 4 0.073 4.71 5 0.069 4.53 6 0.072 4.66 average value 0.071 4.71

[0055] It can be seen from Table 1 that the average pulling force of the PVC gloves obtained in Comparative Example 1 of the present invention is 4.71N.

[0056] Example 1 (Compared with Comparative Example 1, the plasticizer is different, the baking plasticization temperature is lowered, and the mixing time of the raw materials is shorter)

[0057] 1) 100 parts by weight of PVC paste resin, 50 parts by weight of Butyl Octyl Terephthalate , 0.5 parts by weight of Nan Ya calcium zinc 46P and 20 parts by weight of viscosity reducer D70 The mixture was put into a batching tank, stirred and mixed at 15°C for 4 hours, and vacuum degassed at 15°C for 3 hours to obtain a slurry.

[0058] 2) Heat the ceramic hand mold to 70°C, then immerse it in the slurry for 6 seconds, take it out, and place it in an oven. 215℃ Bake for 320 seconds for plasticization , and obtain a hand model covered with a film.

[0059] 3) After the hand mold covered with the film is taken out of the oven, it is naturally cooled to 120°C, then immersed in the polyurethane slurry for 5 seconds, taken out, baked in the oven at 120°C for 1.5 minutes, and naturally cooled to room temperature, and then rolled and demolded to obtain the PVC gloves.

[0060] Six slice samples were then cut from the obtained PVC gloves, and the tensile strength of the slice samples was tested according to the EN455 standard. The test results are shown in Table 2.

[0061] Table 2 Physical property test results of the PVC gloves of Example 1 of the present invention

[0062] Slice thickness (mm) Tension(N) 1 0.071 4.63 2 0.072 5.01 3 0.069 4.71 4 0.068 4.61 5 0.070 4.62 6 0.069 4.92 average value 0.070 4.75

[0063] It can be seen from Table 2 that the average pulling force of the PVC gloves obtained in Example 1 of the present invention is 4.75N.

[0064] Comparative Example 2

[0065] (Compared with Example 1, the plasticizer is different)

[0066] 1) 100 parts by weight of PVC paste resin, 50 parts by weight of Butyl Octyl Citrate , 0.5 parts by weight of Nan Ya calcium zinc 46P and 20 parts by weight of viscosity reducer D70 The mixture was put into a batching tank, stirred and mixed at 15°C for 4 hours, and vacuum degassed at 15°C for 3 hours to obtain a slurry.

[0067] 2) Heat the ceramic hand mold to 70°C, then immerse it in the slurry for 6 seconds, take it out, and place it in an oven. 215℃ Bake for 320 seconds for plasticization , and obtain a hand model covered with a film.

[0068] 3) After the hand mold covered with the film is taken out of the oven, it is naturally cooled to 120°C, then immersed in the polyurethane slurry for 5 seconds, taken out, baked in the oven at 120°C for 1.5 minutes, and naturally cooled to room temperature, and then rolled and demolded to obtain the PVC gloves.

[0069] Six slice samples were then cut from the obtained PVC gloves, and the tensile strength of the slice samples was tested according to the EN455 standard. The test results are shown in Table 3.

[0070] Table 3 Physical property test results of PVC gloves of Comparative Example 2 of the present invention

[0071] Slice thickness (mm) Tension(N) 1 0.072 4.67 2 0.069 4.55 3 0.071 4.64 4 0.070 4.57 5 0.069 4.53 6 0.070 4.62 average value 0.070 4.60

[0072] It can be seen from Table 3 that the average pulling force of the PVC gloves obtained in Comparative Example 2 of the present invention is 4.60N.

[0073] Example 2

[0074] 1) 100 parts by weight of PVC paste resin, 65 parts by weight of Butyl Octyl Terephthalate , 1 part by weight of SBA-203CZ-G and 17 parts by weight of viscosity reducer D70 Put it into a batching tank, stir and mix at 30°C for 3 hours, and vacuum degas at 30°C for 2 hours to obtain a slurry;

[0075] 2) Heat the ceramic hand mold to 80°C, then immerse it in the slurry for 4 seconds, take it out, and place it in an oven. 175℃ Bake for 540 seconds for plasticization , and obtain a hand model covered with a film.

[0076] 3) After the hand mold covered with the film is taken out of the oven, it is naturally cooled to 110°C, then immersed in the polyurethane slurry for 8 seconds, taken out, baked in the oven at 130°C for 1.0 min, and naturally cooled to room temperature, then rolled and demolded to obtain the PVC gloves.

[0077] Six slice samples were then cut from the obtained PVC gloves, and the tensile strength of the slice samples was tested according to the EN455 standard. The test results are shown in Table 4.

[0078] Table 4 Physical property test results of the PVC gloves of Example 2 of the present invention

[0079] Slice thickness (mm) Tensile strength(MPa) 1 0.070 4.59 2 0.069 4.55 3 0.068 4.47 4 0.071 4.69 5 0.070 4.59 6 0.071 4.76 average value 0.070 4.61

[0080] It can be seen from Table 4 that the average pulling force of the PVC gloves obtained in Example 2 of the present invention is 4.61N.

[0081] Comparative Example 3

[0082] The difference from Example 2 is:

[0083] In step 1): plasticizer Butyl Octyl Terephthalate Replace with Butyl Octyl Citrate ;

[0084] In step 2), The baking temperature is 180℃ .

[0085] The remaining steps and parameters are the same as those in Example 2 to prepare PVC gloves.

[0086] Six slice samples were then cut from the obtained PVC gloves, and the tensile strength of the slice samples was tested according to the EN455 standard. The test results are shown in Table 5.

[0087] Table 5 Physical property test results of PVC gloves of Comparative Example 3 of the present invention

[0088] Slice thickness (mm) Tensile strength(MPa) 1 0.069 4.55 2 0.069 4.51 3 0.070 4.56 4 0.069 4.50 5 0.072 4.63 6 0.070 4.57 average value 0.070 4.55

[0089] It can be seen from Table 5 that the average pulling force of the PVC gloves obtained in Comparative Example 3 of the present invention is 4.55N.

[0090] Example 3

[0091] 1) 100 parts by weight of PVC paste resin, 75 parts by weight of Butyl Octyl Terephthalate , 1.5 parts by weight of Nan Ya calcium zinc 46P and 19 parts by weight of viscosity reducer D70 Put it into a batching tank, stir and mix at 40°C for 2h, and vacuum degas at 40°C for 1h to obtain slurry;

[0092] 2) Heat the ceramic hand mold to 90°C, then immerse it in the slurry for 4 seconds, take it out, and place it in an oven. 185℃ Bake for 420 seconds for plasticization , and obtain a hand model covered with a film.

[0093] 3) After the hand mold covered with the film is taken out of the oven, it is naturally cooled to 130°C, then immersed in the polyurethane slurry for 2 seconds, taken out, and baked in the oven at 150°C for 0.5 minutes. After naturally cooling to room temperature, it is curled and demolded to obtain a PVC glove.

[0094] Six slice samples were then cut from the obtained PVC gloves, and the tensile strength of the slice samples was tested according to the EN455 standard. The test results are shown in Table 6.

[0095] Table 6 Physical property test results of PVC gloves of Example 3 of the present invention

[0096] Slice thickness (mm) Tensile strength(MPa) 1 0.070 4.32 2 0.071 4.38 3 0.070 4.31 4 0.069 4.46 5 0.068 4.43 6 0.071 4.62 average value 0.070 4.42

[0097] It can be seen from Table 6 that the average pulling force of the PVC gloves obtained in Example 3 of the present invention is 4.42N.

[0098] Comparative Example 4

[0099] The difference from Example 3 is:

[0100] In step 1): plasticizer Butyl Octyl Terephthalate Replace with Butyl Octyl Citrate ;

[0101] In step 2), The baking temperature is 190℃ .

[0102] The remaining steps and parameters were the same as those in Example 3 to prepare PVC gloves.

[0103] Six slice samples were then cut from the obtained PVC gloves, and the tensile strength of the slice samples was tested according to the EN455 standard. The test results are shown in Table 7.

[0104] Table 7 Physical property test results of PVC gloves of Comparative Example 4 of the present invention

[0105] Slice thickness (mm) Tensile strength(MPa) 1 0.069 4.29 2 0.071 4.38 3 0.068 4.28 4 0.070 4.42 5 0.071 4.39 6 0.070 4.45 average value 0.070 4.37

[0106] It can be seen from Table 7 that the average pulling force of the PVC gloves obtained in Comparative Example 4 of the present invention is 4.37N.

[0107] Example 4

[0108] 1) 100 parts by weight of PVC paste resin, 90 parts by weight of Butyl Octyl Terephthalate , 2 parts by weight of SBA-203CZ-G and 35 parts by weight of viscosity reducer D70 Put it into a batching tank, stir and mix at 45°C for 1 hour, and vacuum degas at 40°C for 1 hour to obtain a slurry;

[0109] 2) Heat the ceramic hand mold to 90°C, then immerse it in the slurry for 4 seconds, take it out, and place it in an oven. 205℃ Bake for 360 seconds for plasticization , and obtain a hand model covered with a film.

[0110] 3) After the hand mold covered with the film is taken out of the oven, it is naturally cooled to 140°C, then immersed in the polyurethane slurry for 2 seconds, taken out, and baked in the oven at 170°C for 0.5 minutes. After naturally cooling to room temperature, it is curled and demolded to obtain a PVC glove.

[0111] Six slice samples were then cut from the obtained PVC gloves, and the tensile strength of the slice samples was tested according to the EN455 standard. The test results are shown in Table 8.

[0112] Table 8 Physical property test results of the PVC gloves of Example 4 of the present invention

[0113] Slice thickness (mm) Tensile strength(MPa) 1 0.069 4.23 2 0.071 4.27 3 0.073 4.51 4 0.071 4.36 5 0.069 4.30 6 0.071 4.45 average value 0.071 4.35

[0114] It can be seen from Table 8 that the average pulling force of the PVC gloves obtained in Example 4 of the present invention is 4.35N.

[0115] It can be seen from the comparative examples and embodiments that since butyl octyl terephthalate has a lower molecular weight than butyl octyl citrate, it is easier to penetrate between PVC molecules, making the plasticizing temperature of the product low. Even if the plasticizing temperature is reduced by 5°C, the tensile force of the gloves is still better than that of butyl octyl citrate. In the normal production process, the plasticization of PVC gloves is achieved by heating the heat transfer oil with natural gas, coal or biomass boilers, and then the heat transfer oil heats the oven air, and the hot air heats the hand mold to reach the plasticizing temperature. After lowering the plasticizing temperature of the oven, on the one hand, the temperature of the heat transfer oil can be lowered to save fuel. At the same time, after the temperature of the heat transfer oil and the oven is lowered, the temperature difference between the heat transfer oil and the environment is reduced during the heat transfer process, the heat loss of the heat transfer oil and the oven is reduced, and the energy efficiency is further improved. It can reduce the use of fuel and thus reduce carbon dioxide emissions.

[0116] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for preparing PVC gloves, comprising the following steps: A) mixing PVC paste resin, a plasticizer, a stabilizer and a viscosity reducer to obtain a slurry; wherein the plasticizer comprises butyl octyl terephthalate; B) dipping the glove model into the slurry, and then baking and plasticizing the glove model to obtain a hand model covered with a film; C) dipping the hand mold covered with the adhesive film into polyurethane slurry, and baking and molding to obtain PVC gloves.

2. The preparation method according to claim 1, characterized in that: In step A), the stabilizer includes a calcium zinc stabilizer; and the viscosity reducer includes D70.

3. The preparation method according to claim 1, characterized in that: In step A), the mass ratio of the PVC paste resin, the plasticizer, the stabilizer and the viscosity reducer is 100:50-100:0.5-2:15-45.

4. The preparation method according to claim 1, characterized in that: In step A), the mixing temperature is 15 to 45° C., and the mixing time is 1 to 4 hours.

5. The preparation method according to claim 1, characterized in that: In step A), the mixing further comprises vacuum degassing; The temperature of the vacuum degassing is 15 to 40° C., and the time of the vacuum degassing is 1 to 3 hours.

6. The preparation method according to claim 1, characterized in that: In step B), the temperature of the glove former during dipping is 65-90° C., and the dipping time is 2-10 seconds.

7. The preparation method according to claim 1, characterized in that: In step B), the baking and plasticizing temperature is 175-215° C. and the time is 5-9 minutes.

8. The preparation method according to claim 1, characterized in that: In step C), the temperature of the hand mold covered with the adhesive film during immersion is 110-140° C., and the immersion time is 2-10 seconds.

9. The preparation method according to claim 1, characterized in that: In step C), the baking temperature is 120-170° C., and the baking time is 0.5-2 min.

10. PVC gloves prepared by the preparation method according to any one of claims 1 to 9.