Preparation process of vinyl doll

Abstract

The invention discloses a preparation process of a vinyl doll, and relates to the technical field of vinyl doll preparation, and the preparation process comprises the following steps: S1, firstly, pretreating and accurately weighing raw materials; and S2, pouring the accurately weighed pretreated raw materials into a stainless steel stirring tank to prepare a paste material. And S3, the mold is subjected to cleaning, preheating and mold release agent coating pretreatment. And S4, the paste is injected into the mold, and the paste is shaped to form the doll. And S5, gradient cooling is conducted on the mold, the formed doll is subjected to nondestructive demolding, and then the demolded doll is subjected to trimming treatment. And S6, performing low-temperature aging and surface cleaning post-treatment on the doll. And S7, environment-friendly quality inspection is conducted on the post-treated doll, after the raw materials are pretreated and accurately weighed, metering is accurate, follow-up sufficient mixing of the raw materials is ensured, after the doll is shaped, low-temperature aging and surface cleaning post-treatment are conducted on the doll, slight smell is eliminated, the environment-friendly property of the doll is improved, meanwhile, the forming effect of the vinyl doll is ensured, and the production quality of the doll is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of preparation of plasticine dolls, in particular to a preparation process of plasticine dolls. BACKGROUND

[0002] The plasticine doll is a three-dimensional doll or ornament formed by a special process with polyvinyl chloride (PVC) paste resin as the core raw material, and with plasticizers, heat stabilizers, colorants and other additives. Its most notable feature is flexible and controllable texture. By adjusting the amount of plasticizer, soft dolls with elasticity and resilience after extrusion (such as children's interactive toys) can be made, and hard dolls that are not easy to deform (such as desktop decorative ornaments) can also be made. At the same time, due to the fine particles of PVC paste resin, the surface of the doll is usually smooth and flawless, and rich and bright colors and fine patterns (such as facial details of movie and television characters, clothing lines) can be achieved through special color paste, combining the ornamental and durable nature. At present, plasticine dolls are widely used in children's toys, film and television IP peripherals, trendy toys, baby supplies and other fields, and with the advantages of easy shaping, aging resistance and strong cost adaptability, they have become a product type with both practicality and emotional value.

[0003] The processing and preparation of plasticine dolls need to follow the core process of "raw material preparation-mold processing-molding and curing-post processing": first, the raw material paste is prepared, and the PVC paste resin, plasticizer, heat stabilizer, colorant, lubricant and other raw materials are added to the stirring tank in turn according to the formula, and stirred at a high speed under a certain temperature until the paste is uniform and free of particles (air bubbles should be avoided to ensure smoothness in subsequent molding); then the mold is pretreated, the customized metal or silica gel mold (corresponding to the doll shape) is cleaned and preheated to a specified temperature (usually 40-60℃) to enhance the adhesion of the paste; then the plasticine molding is carried out, usually by dipping or spraying method - dipping method is to immerse the preheated mold into the paste, so that the inner wall is evenly coated with a layer of paste (the thickness is controlled by the dipping time), and the spraying method is to uniformly spray the paste on the mold by a spray gun; then the heating and curing are carried out, the mold with the attached paste is sent into the oven, heated at 140-180℃, so that the PVC paste is gelled and cured into a three-dimensional shape; after curing, the mold is removed and the edges are trimmed, the molded doll is taken out of the mold, and the excess material on the edges is trimmed; finally, subsequent processing can be carried out according to the requirements, such as secondary coloring and pasting accessories (such as glasses, clothing), and finally a complete plasticine doll is made.

[0004] The existing plasticine doll is prepared by putting various materials into the stirring tank for mixing and preparation to form a paste, and then the paste is treated by molding and curing and post-processing, so that the plasticine doll can be produced. However, the existing preparation process may cause uneven mixing of raw materials, which may lead to the risk of residual harmful additives in some plasticine dolls, poor environmental safety, and rough surface, easy aging and easy deformation of the doll. SUMMARY

[0005] The present application aims to solve the problems of uneven mixing of raw materials, residue of harmful additives, poor environmental safety, rough surface, easy aging and deformation of the doll, and provides a preparation process of a plasticine doll.

[0006] To achieve the above-mentioned purpose, the present application specifically adopts the following technical scheme: The preparation process of the plasticine doll comprises the following steps: S1: first, pretreat and accurately weigh the raw materials; S2: pour the pretreated and accurately weighed raw materials into a stainless steel stirring tank for paste preparation; S3: clean the mold, then coat the mold with a release agent, dry it with a hot air gun, and then put it into an oven for segmented preheating, thereby pretreating the mold; S4: inject the paste into the mold, the injection amount is 1 / 3-1 / 2 of the volume of the mold cavity, then use the plasticine machine to clamp the mold and turn it over by 360°, rotate at a constant speed for 15 seconds, and shape the doll; S5: take the mold out of the oven, first place it at room temperature for 2 minutes, then pour cold water on the outer wall of the mold, cool it to 60-70℃, and perform gradient cooling on the mold, and then perform non-destructive demolding on the shaped doll, and finally perform edge trimming on the demolded doll; S6: perform low-temperature aging and surface cleaning on the doll; S7: perform environmental quality inspection on the treated doll.

[0007] By adopting the above technical scheme, the pretreatment and accurate weighing of the raw materials can ensure that the raw materials are fully dispersed and the possibility of agglomeration is reduced, and the measurement is accurate, ensuring that the raw materials are fully mixed later, then the mold is cleaned, preheated, and coated with a release agent for pretreatment, avoiding the influence of residual pollutants on the mold on environmental safety, ensuring that the preheating temperature matches the OBSH foaming requirement, which can further improve the production quality of the doll, and after shaping the doll, the doll is subjected to low-temperature aging and surface cleaning treatment, which further releases internal stress and eliminates slight odor, thereby facilitating the environmental preparation of the doll, improving the environmental safety of the doll, and ensuring the shaping effect of the plasticine doll and improving the production quality of the doll.

[0008] Further, in S1, the raw materials include PVC paste resin, DOTP plasticizer, heat stabilizer, colorant, lubricant, filler and foaming agent.

[0009] By adopting the above technical scheme, the DOTP plasticizer is added in the raw material, there is no endocrine interference risk, the volatility is low, the doll prepared has no pungent plastic smell during long-term use, the coloring agent is the environment-friendly PVC color paste, the color of the doll is durable and has no safety risk, and the environmental protection of the doll is further improved.

[0010] The raw material uses the PVC paste resin as the base material, the surface after forming has no particle feeling, the smoothness of the surface of the doll is improved, the lubricant is matched, the scratches and bubbles caused by sticking to the mold during processing are avoided, the problem of surface oiling and dusting caused by excessive lubricant is not caused, the quality of the doll is further improved, and the use experience of the doll is greatly optimized.

[0011] In the preparation of the doll, the PVC paste resin has excellent compatibility with the DOTP plasticizer, the coloring agent and the filler can be uniformly dispersed, the problems of color paste precipitation and filler agglomeration are not caused, the production efficiency of the plastic doll is further improved, and the preparation quality of the doll is improved.

[0012] Further, the proportioning amount of the raw material is that the PVC paste resin is 100 parts, the DOTP plasticizer is 30-80 parts, the heat stabilizer is 2-5 parts, the coloring agent is 0.5-3 parts, the lubricant is 0.5-1.5 parts, the filler is 5-10 parts, and the foaming agent is 1-3 parts.

[0013] By adopting the above technical scheme, the PVC paste resin, the DOTP plasticizer, the heat stabilizer, the coloring agent, the filler and the foaming agent are accurately weighed by the electronic weighing scale, the proportioning amount of the raw material is that the PVC paste resin is 100 parts, the DOTP plasticizer is 30-80 parts, the heat stabilizer is 2-5 parts, the coloring agent is 0.5-3 parts, the lubricant is 0.5-1.5 parts, the filler is 5-10 parts, and the foaming agent is 1-3 parts.

[0014] Further, the heat stabilizer includes a composite calcium-zinc stabilizer and an auxiliary stabilizer.

[0015] By adopting the above technical scheme, the heat stabilizer is composed of the composite calcium-zinc stabilizer and the auxiliary stabilizer, the auxiliary stabilizer is a phosphite, the traditional lead salt stabilizer is replaced by the composite calcium-zinc stabilizer and the phosphite auxiliary agent, there is no lead, cadmium and other heavy metals, the migration of heavy metals after aging of the doll is avoided, the phosphite can also enhance the oxidation resistance and reduce harmful substances generated by oxidation of the stabilizer itself.

[0016] Further, the coloring agent is an environment-friendly PVC color paste.

[0017] By adopting the above technical scheme, the coloring agent is the environment-friendly PVC color paste, there is no azo and heavy metal pigment, the color powder is not detached and dyed, the color is durable and has no safety risk, and the environmental protection requirement of the food contact level surrounding is met.

[0018] Further, the lubricant is calcium stearate.

[0019] By adopting the above technical solution, the lubricant is calcium stearate, which can avoid surface defects such as bubbles and scratches caused by material sticking to the mold during processing, and also avoids surface oiling caused by excessive lubricant.

[0020] Further, the filler is food-grade nano talc powder.

[0021] By adopting the above technical solution, the filler is food-grade nano talc powder, which can improve the rigidity and scratch resistance of the doll, avoid the problem of existing dolls being easily scratched by nails, reduce the amount of resin, control the cost without sacrificing the texture, and even if the surface of the doll is slightly worn, there is no risk of impurities being released, further expanding the application scenarios.

[0022] Further, the foaming agent is an environmentally friendly OBSH foaming agent.

[0023] By adopting the above technical solution, the foaming agent is an environmentally friendly OBSH foaming agent, and the decomposition products are harmless substances such as water and carbon dioxide, without formaldehyde and harmful amine residues, and no odor during processing and use.

[0024] In summary, the present application includes at least one of the following beneficial effects: 1. The present application, by pretreating and accurately weighing the raw materials, can ensure that the raw materials are fully dispersed, reduce the possibility of raw material aggregation, and accurately measure the amount of raw materials, so that the mold can be cleaned, preheated, coated with a release agent, and pretreated to avoid contamination of the mold, ensure that the preheating temperature matches the OBSH foaming requirements, and further improve the production quality of the doll. After the doll is shaped, the doll is subjected to low-temperature aging and surface cleaning post-processing to further release internal stress and eliminate slight odor, which facilitates the environmentally friendly preparation of the doll, improves the environmental friendliness of the doll, and ensures the molding effect of the doll and improves the production quality of the doll.

[0025] 2. The present application, by adding DOTP plasticizer in the raw materials, has no endocrine disrupting risk and low volatility, and the prepared doll has no pungent plastic smell during long-term use, and the coloring agent uses environmentally friendly PVC color paste, so that the color of the doll is durable and has no safety risk, further improving the environmental friendliness of the doll.

[0026] 3. The present application uses PVC paste resin as the base material, and the surface after molding has no particle feeling, improving the smoothness of the surface of the doll, and the lubricant can avoid scratches and bubbles caused by sticking to the mold during processing, and also avoids the problem of surface oiling caused by excessive lubricant, further improving the quality of the doll and greatly optimizing the use experience of the doll.

[0027] 4、The application has excellent compatibility of PVC paste resin and DOTP plasticizer in the preparation of dolls, and the coloring agent and the filler can be uniformly dispersed, without problems such as color paste precipitation and filler agglomeration, thereby further improving the production efficiency of the plastic dolls and improving the preparation quality of the dolls. DETAILED DESCRIPTION

[0028] The application discloses a preparation process of a plastic doll.

[0029] The preparation process of the plastic doll comprises the following steps: S1: first, pretreat and accurately weigh the raw materials; S2: pour the pretreated and accurately weighed raw materials into a stainless steel stirring tank for paste preparation; S3: clean the mold, then coat a release agent in the mold, dry it with a hot air gun, and then put the mold into an oven for segmented preheating, so as to pretreat the mold; S4: inject the paste into the mold, the injection amount is 1 / 3-1 / 2 of the volume of the mold cavity, then the mold is clamped by the plastic doll machine and turned over by 360°, and the mold is uniformly rotated for 15 seconds to shape the paste into a doll; S5: take the mold out of the oven, first place it at room temperature for 2 minutes, then pour cold water on the outer wall of the mold, cool it to 60-70℃, and then gradient cool the mold, and damage-free demold the formed doll, and then edge trim the demolded doll; S6: low-temperature aging and surface cleaning aftertreatment are performed on the doll; S7: the aftertreated doll is subjected to environmental protection quality inspection.

[0030] In S1, the raw materials include PVC paste resin, DOTP plasticizer, heat stabilizer, coloring agent, lubricant, filler and foaming agent, and the proportioning amount of the raw materials is as follows: 100 parts of PVC paste resin, 30-80 parts of DOTP plasticizer, 2-5 parts of heat stabilizer, 0.5-3 parts of coloring agent, 0.5-1.5 parts of lubricant, 5-10 parts of filler and 1-3 parts of foaming agent.

[0031] First, the raw materials are pretreated and accurately weighed. The PVC paste resin is passed through a 100-mesh sieve and dried in a 50°C oven for 2 hours to prevent bubbles from forming during foaming. The DOTP plasticizer is heated and stirred in a 60°C water bath for 3 minutes if it is layered in winter. The filler is passed through a 200-mesh sieve to prevent agglomeration and cause the surface of the doll to be rough. The filler can be pre-wetted with 5% DOTP plasticizer to make it paste-like, which facilitates subsequent dispersion. The PVC paste resin, DOTP plasticizer, heat stabilizer, colorant, filler, and foaming agent are accurately weighed using an electronic weighing scale. The ratio of the raw materials is as follows: PVC paste resin 100 parts, DOTP plasticizer 30-80 parts, heat stabilizer 2-5 parts, colorant 0.5-3 parts, lubricant 0.5-1.5 parts, filler 5-10 parts, and foaming agent 1-3 parts.

[0032] The pretreated raw materials are then processed into a paste. In a stainless steel stirring tank, 100 parts of PVC paste resin are added. Slowly pour in the DOTP plasticizer under low-speed stirring. Stir for 8 minutes until the resin is completely dissolved. After stirring the PVC paste resin, first add the heat stabilizer and stir for 5 minutes to ensure uniform dispersion of the heat stabilizer. Then add the phosphite auxiliary stabilizer and continue stirring for 3 minutes. The two work together to improve the heat stabilization efficiency and prevent yellowing during high-temperature plasticization. Pour in the colorant and stir at medium speed for 5 minutes. Observe whether the color is uniform. Then add the lubricant and stir for 3 minutes. After that, slowly add the filler and stir at high speed for 8 minutes. Check for agglomerated particles using a scraper during this time. If there are agglomerated particles, extend the stirring time by 2 minutes. Finally, add the foaming agent and stir at low speed for 2 minutes to make the paste. Then transfer the prepared paste into a vacuum degassing machine and degas for 20 minutes.

[0033] Wipe the inner wall of the aluminum alloy mold with food-grade alcohol, focusing on cleaning the mold line to prevent impurities from being included in the flash. After drying, wipe it clean with a dust-free cloth. Then apply a thin layer of release agent, which is food-grade silicone oil. Dry it with a hot air gun. Then put the mold into an oven and preheat it in stages: first, maintain 120°C for 3 minutes to dry the residual moisture, then increase the temperature to 160-175°C and maintain it for 5 minutes to ensure uniform mold wall temperature and prevent excessive foaming in some areas.

[0034] Pour the degassed paste into the preheated mold, with the amount of material being 1 / 3-1 / 2 of the volume of the mold cavity. Then, use a slush molding machine to hold the mold and flip it 360° at a uniform speed for 15 seconds. After the wall is hung, pour the excess paste back into a special bucket. Here, the excess paste can be reused 2-3 times and needs to be stored separately. Then, place the mold in a 160°C oven for 3-5 minutes. Then, increase the temperature to 170-175°C and maintain it for 5-8 minutes. During this time, the foaming agent slowly decomposes, releasing CO2 and water, forming uniform bubbles. Observe the slight expansion of the mold to avoid overheating and causing the bubbles to burst.

[0035] The mold is taken out of the oven, first at room temperature for 2 minutes to avoid sudden cooling causing the doll to crack, then use normal temperature water to pour the outer wall of the mold, cool to 60-70℃, hand can touch, the total cooling time is 5 minutes, then open the mold buckle, use bamboo piece to pry the edge of the mold, slowly take out the doll, use food grade PP scissors to cut off the burr at the mold line, after trimming, put the doll into a dust-free tray.

[0036] Put the demolded doll into a 40-45℃ oven for 3 hours to release the internal stress generated during plasticization and prevent deformation later. Wipe the surface of the doll with deionized water to remove any residual silicone oil or alcohol. Dry the water with a dust-free cloth and place it in a fume hood for 24 hours to remove the odor.

[0037] After that, the produced doll is sampled for inspection, and after passing the inspection, the doll can be packaged and stored.

[0038] The raw material adds DOTP plasticizer, which has no endocrine disrupting risk and low volatility. The doll prepared has no pungent plastic smell during long-term use. The coloring agent uses environmentally friendly PVC color paste, which makes the doll color durable and safe, further improving the environmental protection of the doll. The raw material uses PVC paste resin as the base material, and the surface after molding has no particle feeling, improving the smoothness of the surface of the doll. At the same time, the lubricant can avoid scratches and bubbles caused by sticking during processing, and also avoids the problem of surface oiling and dusting caused by excessive lubricant, further improving the quality of the doll and greatly optimizing the use experience of the doll. In the preparation of the doll, the PVC paste resin has excellent compatibility with the DOTP plasticizer, and the coloring agent and filler can be uniformly dispersed, without the problems of color paste precipitation and filler agglomeration, further improving the production efficiency of the doll and improving the preparation quality of the doll.

[0039] The heat stabilizer includes a composite calcium-zinc stabilizer and an auxiliary stabilizer. The coloring agent is an environmentally friendly PVC color paste. The lubricant is calcium stearate. The filler is edible-grade nano talc powder. The foaming agent is an environmentally friendly OBSH foaming agent.

[0040] The DOTP plasticizer has no endocrine disrupting risk and low volatility. The doll has no pungent plastic smell during long-term use. The amount of plasticizer is clearly distinguished between soft (60-80 parts) and hard (30-50 parts). The soft version can achieve good elasticity and extrusion rebound feel, and the hard version can achieve crispness and resistance to deformation. When preparing dolls of different textures, there is no need to change the basic formula, just adjust the plasticizer to switch the positioning.

[0041] The heat stabilizer is composed of a composite calcium-zinc stabilizer and an auxiliary stabilizer, and the auxiliary stabilizer is a phosphite. The composite calcium-zinc stabilizer and the phosphite auxiliary agent replace the traditional lead salt stabilizer, without lead, cadmium and other heavy metals, avoiding the migration of heavy metals after aging of the doll; the phosphite can also enhance the oxidation resistance, reduce harmful substances generated by the oxidation of the stabilizer itself, and at the same time, can delay the thermal oxidative degradation of PVC, so that the doll can not be brittle for 1-2 years, and the color durability is improved by more than 30%.

[0042] The colorant is an environmentally friendly PVC color paste without azo and heavy metal pigments, avoiding color powder falling off and staining, and having persistent color and no safety risk, meeting the environmental protection requirements of food contact level.

[0043] The lubricant is calcium stearate, which can avoid surface defects such as bubbles and scratches caused by material sticking to the mold during processing, and also will not cause surface oiling due to excessive lubricant.

[0044] The filler is food-grade nano talc powder, which can improve the rigidity and scratch resistance of the doll, avoid the problem that the existing doll is easily scratched by nails, reduce the resin consumption, control the cost without sacrificing the texture, and even if the surface of the doll is slightly worn, there is no risk of impurity release, further widening the application scenarios.

[0045] The foaming agent is an environmentally friendly OBSH foaming agent, and the decomposition products are harmless substances such as water and carbon dioxide, without formaldehyde and harmful amine residues, and no odor during processing and use. Moreover, the decomposition temperature (about 150-160℃) of the environmentally friendly OBSH foaming agent is highly matched with the gel temperature (140-170℃) of the PVC paste resin, which can form fine and uniform micron-sized cells, and the cell structure is stable and not easy to deform after extrusion, with a more fluffy hand feeling.

[0046] Working principle: first, pretreat and accurately weigh the raw materials, pass the PVC paste resin through a 100-mesh sieve, and dry it in a 50℃ oven for 2 hours to avoid bubbles during foaming; the DOTP plasticizer: if layered in winter, heat and stir in a 60℃ water bath for 3 minutes, and the filler is passed through a 200-mesh sieve to prevent agglomeration and cause rough surface of the doll. The filler can be pre-wetted with 5% DOTP to form a paste, which is convenient for subsequent dispersion. Then, accurately weigh the PVC paste resin, DOTP plasticizer, heat stabilizer, colorant, filler and foaming agent by electronic weighing scale. The raw material ratio is: PVC paste resin 100 parts, DOTP plasticizer 30-80 parts, heat stabilizer 2-5 parts, colorant 0.5-3 parts, lubricant 0.5-1.5 parts, filler 5-10 parts, and foaming agent 1-3 parts.

[0047] After the pretreated raw materials are processed into paste, 100 parts of PVC paste resin are added into a stainless steel stirring tank, and DOTP plasticizer is slowly poured under low-speed stirring. The resin is completely dissolved after 8 minutes of stirring. After the PVC paste resin is stirred, the heat stabilizer is first added and stirred for 5 minutes to make the heat stabilizer uniformly dispersed. Then the phosphite auxiliary stabilizer is added and continues to be stirred for 3 minutes to improve the heat stabilization efficiency. The two work together to avoid yellowing during high-temperature plasticization. Then the colorant is poured, and the color is observed for uniformity after 5 minutes of medium-speed stirring. Then the lubricant is added and stirred for 3 minutes. Then the filler is slowly added, and high-speed stirring is performed for 8 minutes. During this period, the scraper is used to check for agglomerated particles. If there are agglomerated particles, the stirring is prolonged for 2 minutes. Finally, the foaming agent is added and stirred at low speed for 2 minutes to prepare the paste. Then the prepared paste is transferred into a vacuum degassing machine for 20 minutes of degassing treatment.

[0048] The inner wall of the aluminum alloy mold is wiped with food-grade alcohol, and the joint line is cleaned to prevent the inclusion of impurities. After drying, it is wiped clean with a dust-free cloth. Then a thin layer of release agent is applied, and the release agent is food-grade silicone oil. Use a hot air gun to dry, then put the mold into an oven and preheat in stages: first 120°C for 3 minutes to dry the residual moisture, then increase the temperature to 160-175°C and keep it for 5 minutes to ensure uniform mold wall temperature and avoid excessive foaming in some areas.

[0049] Pour the degassed paste into the preheated mold, and the injection amount is 1 / 3-1 / 2 of the volume of the mold cavity. Then, the mold is clamped by the slush molding machine and turned 360° at a uniform speed for 15 seconds. After the wall is hung, the excess paste is poured back into the special bucket. Here, the excess material can be reused 2-3 times and needs to be stored separately. Then, place the mold in a 160°C oven for 3-5 minutes, then increase the temperature to 170-175°C and keep it for 5-8 minutes. During this period, the foaming agent slowly decomposes and releases CO2 and water, forming uniform bubbles. Observe the slight expansion of the mold to avoid overheating and cause bubble rupture.

[0050] Remove the mold from the oven and let it stand at room temperature for 2 minutes to avoid cracking due to sudden cooling. Then, pour water at room temperature onto the outer wall of the mold to cool it to 60-70°C, which can be touched by hand. The total cooling time is 5 minutes. Then, open the mold clasp and gently pry the edges of the mold with a bamboo sheet. Slowly remove the figurine and use food-grade PP scissors to cut off the burrs at the joint line. After trimming, place the figurine in a dust-free tray.

[0051] Place the demolded figurine in a 40-45°C oven for 3 hours to release the internal stress generated during plasticization and prevent deformation in the later stage. Wipe the figurine surface with deionized water to remove any residual silicone oil or alcohol. Use a dust-free cloth to absorb the water. Place it in a fume hood for 24 hours to remove the odor.

[0052] After that, the produced figurines are sampled and inspected. After passing the inspection, the figurines can be packaged and stored.

Claims

1. A manufacturing process for vinyl figure, characterized in that, Includes the following steps: S1: First, the raw materials are pre-treated and accurately weighed; S2: Pour the precisely weighed pre-treated raw materials into a stainless steel mixing tank to prepare the paste; S3: Clean the mold, then apply a release agent to the inside of the mold and dry it with a hot air gun. Then put the mold into the oven for preheating in sections to pre-treat the mold. S4: Inject the paste into the mold, the amount of paste is 1 / 3 to 1 / 2 of the mold cavity volume. Then, use a slush molding machine to hold the mold and rotate it 360° at a constant speed for 15 seconds to shape the paste into a doll. S5: Remove the mold from the oven, let it sit at room temperature for 2 minutes, then pour room temperature water over the outer wall of the mold to cool it down to 60-70℃. Perform gradient cooling on the mold and demold the molded doll without damage. Then trim the edges of the demolded doll. S6: The doll undergoes low-temperature aging and surface cleaning post-treatment; S7: Conduct environmental quality inspections on the post-processed dolls.

2. The manufacturing process of the vinyl figure according to claim 1, characterized in that: In S1, the raw materials include PVC paste resin, DOTP plasticizer, heat stabilizer, colorant, lubricant, filler and foaming agent.

3. The manufacturing process of the vinyl figure according to claim 2, characterized in that: The proportions of the raw materials are as follows: 100 parts PVC paste resin, 30-80 parts DOTP plasticizer, 2-5 parts heat stabilizer, 0.5-3 parts colorant, 0.5-1.5 parts lubricant, 5-10 parts filler, and 1-3 parts foaming agent.

4. The manufacturing process of the vinyl figure according to claim 2, characterized in that: The heat stabilizer includes a composite calcium-zinc stabilizer and an auxiliary stabilizer.

5. The manufacturing process of the vinyl figure according to claim 2, characterized in that: The colorant is an environmentally friendly PVC color paste.

6. The manufacturing process of the vinyl figure according to claim 2, characterized in that: The lubricant is calcium stearate.

7. The manufacturing process of the vinyl figure according to claim 2, characterized in that: The filler is food-grade nano talc powder.

8. The manufacturing process of the vinyl figure according to claim 2, characterized in that: The foaming agent is an environmentally friendly OBSH foaming agent.