Composite protective glove and its forming and dust-free cleaning process

Abstract

The application discloses a composite protective glove and a forming and dust-free cleaning process thereof. The composite protective glove comprises a main structure layer and a composite layer. The main structure layer is arranged on the inner side and directly contacts the human body. The composite layer is arranged on the outer side of the main structure layer and directly contacts the external environment. The composite layer is one layer or multiple layers. When the composite layer is a multiple-layer structure, the surface layer and the inner layer of the composite layer are formed by impregnation of different kinds of glue. The application adopts the process idea of nested combination, and solves the problems of insufficient mechanical and physical properties of the glove, excessive pollutants on the surface of the glove, and excessive dust-free cleaning times of the glove affecting the performance of the glove.

Description

Technical Field

[0001] This invention belongs to the field of cleanroom protective equipment technology, specifically relating to a composite protective glove and its molding and cleanroom cleaning process. Background Technology

[0002] Gloves are commonly used for process protection in various scenarios, providing some protection for workers' hands and the products. General requirements include good tear resistance, puncture resistance, and adhesion; however, different scenarios have specific requirements, and the processes for achieving many of these requirements are conflicting.

[0003] The production line for gloves is relatively long and the process is complex. Generally speaking, the more specifications required, the longer the production process. Taking gloves used in cleanrooms as an example, in addition to meeting the standard protective requirements, they also need to meet cleanliness-related specifications. These include silicone oil, amino compounds, DOP, particulate matter, anions and cations (especially chloride ions), non-volatile residues, sulfur and its compounds, etc. These micro-contaminants have a significant impact on product yield. If these micro-contaminants cannot be controlled within the standard requirements, it will cause varying degrees of contamination and affect product quality.

[0004] For gloves used in cleanrooms, the process typically involves post-molding cleaning of the glove blanks after production. However, cleaning is not a panacea and can introduce problems. Actual cleaning tests have shown that more frequent or longer cleaning does not necessarily improve glove performance. Repeated and prolonged cleaning can degrade the physical properties of the product, such as tensile strength, elongation, and puncture resistance. When a certain number of cleaning cycles and duration are reached, friction between the glove surface and the metal parts of the cleaning equipment can cause fuzzing, leading to excessive particulate matter.

[0005] The existing glove production process is as follows: hand mold cleaning—coagulant impregnation—latex impregnation—first chlorine wash—pre-removal—second chlorine wash—dust-free cleaning 6-8 times.

[0006] The existing process has the following problems:

[0007] 1. In the existing process, the first-stage impregnation involves immersing the hand mold in latex made of materials such as nitrile rubber, latex, PU, ​​PVC, and PE, followed by high-temperature drying to shape the glove. Because this first-stage impregnation process results in a thin rubber layer, a vulcanizing agent is added to ensure the glove's flexibility, comfort, and strength. This agent undergoes a high-temperature curing process in an oven, reacting chemically with the glove body. However, this vulcanization process can generate sulfur elements, sulfur ions, and sulfides. When the finished gloves come into contact with electronic components in a cleanroom, if some components contain silver, silver has a strong affinity for sulfur. Upon encountering hydrogen sulfide gas or sulfur ions in the air, it easily produces silver sulfide (Ag2S), which contaminates the solder pads, affecting subsequent soldering processes. Furthermore, silver sulfide is extremely difficult to dissolve and clean.

[0008] 2. In the existing process, the friction of the glove surface is greatly reduced after the chlorination process. The first chlorination is applied to the inner surface of the glove, forming a coating to facilitate wearing. The second chlorination is applied to the outer surface of the glove, forming a coating to prevent the gloves from sticking together. However, the disadvantage of chlorination is that chlorine elements, chloride ions, and chlorine compounds derived from chlorination remain on the glove surface. After the second chlorination, the chlorine elements and other substances on the outer surface of the glove can easily cause short circuits, corrosion, or metal ionization when they come into contact with electronic components, posing a significant risk of product contamination.

[0009] 3. In the existing process, due to the use of vulcanizing agent curing process and secondary chlorination process, in order to meet the cleanliness requirements of gloves and wash away residual sulfur and chlorine elements as much as possible, the number of dust-free cleaning times will be increased in the cleaning process after molding, generally 6-8 times. However, test data shows that more than 4 cleaning times will cause the mechanical and physical properties of gloves to decline, LPC to increase, and fingerprint residue to become serious.

[0010] 4. In the existing process, a drum washing machine is generally used to clean gloves. The metal inner drum of the drum rotates periodically, causing the gloves to tumble and rub inside the drum. At the same time, the inner drum also lifts the gloves out of the liquid and sends them to a certain height. Due to gravity, they fall back into the cleaning liquid and collide with it, producing an effect similar to being hit or thrown, thus achieving the purpose of cleaning the gloves. However, when the number of times or the duration of glove washing exceeds a certain limit, the frequent friction between the glove surface and the metal inner drum of the drum can easily cause the glove surface to become fuzzy, resulting in excessive particulate matter. Summary of the Invention

[0011] Based on the above problems and technical requirements, this invention proposes a composite protective glove and its molding and dust-free cleaning process. It adopts a nested composite process to solve problems such as insufficient mechanical and physical properties of the glove, excessive contaminants on the glove surface, and excessive dust-free cleaning affecting the glove's performance.

[0012] The technical solution of the present invention is as follows:

[0013] A composite protective glove includes a main structural layer and a composite layer. The main structural layer is located on the inner side and comes into direct contact with the human body. The composite layer is located on the outer side of the main structural layer and comes into direct contact with the external environment. The composite layer can be one or more layers. When the composite layer is a multi-layer structure, the outer and inner layers of the composite layer are impregnated with different types of adhesives.

[0014] Furthermore, the surface layer of the composite layer is formed by impregnation with a first latex, which is made of PE material; the inner layer of the composite layer is formed by impregnation with a second latex once or multiple times, which is made of NY or PET material; and the main structural layer is formed by impregnation with a third latex, which is made of nitrile rubber, latex, PU, ​​or PVC material.

[0015] A molding and dust-free cleaning process for composite protective gloves includes the following steps:

[0016] Step 1: Clean and dry the hand mold used for immersion;

[0017] Step 2: Immerse the dried hand mold in the coagulant. After immersion, dry the hand mold and coat the surface of the hand mold with a layer of coagulant coating.

[0018] Step 3: Dip the hand mold into the first latex once, dry it after dipping, and coat the surface of the hand mold to form the first latex coating.

[0019] Step 4: Immerse the hand mold in the second latex and dry it once or multiple times to coat the surface of the first latex coating with one or more layers of the second latex coating.

[0020] Step 5: Immerse the hand mold in the third latex once, and dry it after immersion to coat the surface of the second latex coating with the third latex coating;

[0021] Step 6: Perform a chlorine wash on the surface of the third latex of the hand mold, and then dry it.

[0022] Step 7: Demold the composite gloves, which have undergone multiple dip-molding processes, from the hand mold;

[0023] Step 8: Perform multiple dust-free cleanings on the composite gloves.

[0024] As a preferred embodiment, Step 8 further includes the following steps:

[0025] Step 8.1: Select an ultrasonic cleaner as the cleaning equipment and clean the inside of the ultrasonic cleaner with a clean, lint-free cloth.

[0026] Step 8.2: Prepare the cleaning solvent. Place the gloves to be cleaned into the ultrasonic cleaner, with the gloves occupying 1 / 3 of the machine's internal space. Turn on the ultrasonic cleaner and heat the cleaning solvent to 40-50℃ before injecting it into the machine, with the cleaning solvent occupying 1 / 2 of the machine's internal space.

[0027] Step 8.3: After cleaning with an ultrasonic cleaner for 25-35 minutes, drain the cleaning solvent and then inject rinsing solvent for rinsing. The rinsing temperature is room temperature and the rinsing time is 30 minutes. After one rinsing, change the rinsing volume for the next rinsing. Repeat the rinsing process several times.

[0028] Step 8.4: After rinsing, use a dryer to dry the gloves. Before putting the gloves in, clean the inside of the dryer with a lint-free cloth. Turn the gloves over in the dryer to dry them. The drying time should not exceed 90 minutes and the drying temperature should be 45-55℃.

[0029] Step 8.5: After drying, cool the gloves for 10-15 minutes.

[0030] Furthermore, in Step 8.2, the prepared cleaning solvent includes a main agent and an auxiliary agent, with the main agent accounting for 95-98% of the total volume of the cleaning solvent and the auxiliary agent accounting for 2-5% of the total volume of the cleaning solvent.

[0031] Furthermore, the main agent is deionized DI water, the resistivity of the main agent is 18 MΩ·cm, the particle size of ≥0.5 μm in the main agent is ≤1 particle / ml, and the concentration of metal ions Na, Cl, Fe, Cu, Ca, and K in the main agent is ≤10 ppt.

[0032] Furthermore, the additive is a silicone oil remover, and the pH value of the additive is 7.

[0033] Furthermore, the rinsing solvent in Step 8.3 is deionized DI water, the resistivity of the rinsing solvent is 18 MΩ·cm, the number of particles ≥0.5 μm in the rinsing solvent is ≤1 particle / ml, and the concentration of metal ions Na, Cl, Fe, Cu, Ca, and K in the rinsing solvent is ≤10 ppt.

[0034] Furthermore, in Step 8.3, the total number of rinsings of the gloves shall not exceed four.

[0035] Furthermore, in Step 8.5, the cold air is filtered through a high-efficiency filter to a dust-free state before being introduced into the dryer to cool the dried gloves.

[0036] The beneficial effects of this invention are:

[0037] 1. This glove is impregnated with the first latex, the second latex and the third latex in sequence, with the number of impregnations reaching more than three times. The multi-layer composite structure improves the overall physical and mechanical properties of the glove, replacing the existing process of adding vulcanizing agents to the original impregnation latex in order to improve the mechanical and physical properties of the glove. This avoids the contamination of electronic components caused by sulfur ions, sulfides and other residues on the surface of the glove.

[0038] 2. The first latex coating is applied to the outermost layer of the glove, i.e., the surface of the composite layer. The material is PE. As the part that comes into direct contact with the product, the PE outer layer has the characteristics of being non-toxic, low temperature resistant, chemically stable, acid and alkali resistant, low water absorption, and excellent antistatic properties. In particular, PE contains opening agents and slip agents, which can reduce the friction on the surface of the glove, making it easy to separate the gloves and preventing them from sticking together. Therefore, the outer layer of the gloves coated with PE can be exempted from chlorine washing, avoiding secondary chlorine washing that contaminates the glove surface, and also reducing the number of subsequent dust-free cleaning cycles.

[0039] 3. The second latex is made of materials such as NY and PET. The inner layer of the composite layer serves as the intermediate and support layer. It not only has excellent physical and mechanical properties, meeting various performance requirements of gloves such as tensile strength, elongation, and puncture resistance, but also has a temperature resistance of up to 120℃, fatigue resistance, stable performance, and excellent antistatic properties, providing strong protection.

[0040] 4. The preferred material for the third latex is nitrile rubber. As the part that comes into direct contact with the human body, it has excellent wear resistance, heat resistance, strong adhesion, and antistatic properties. It does not contain allergens and will not cause allergies due to hand sweating even after long-term wear.

[0041] 5. Because the use of three composite layers of different materials improves the mechanical properties of the gloves, the glove manufacturing process does not require the use of vulcanization to increase strength. The properties of the outermost PE layer itself prevent the gloves from sticking together, so the outer surface of the gloves is exempt from chlorine washing to reduce friction. Therefore, the gloves after molding and demolding contain neither sulfur nor chlorine. In subsequent dust-free cleaning, the number of cleaning times can be reduced to less than 4 times, thus reducing the impact of multiple cleanings on the physical properties of the gloves.

[0042] 6. In this solution, an ultrasonic cleaner is used instead of the original drum cleaner. Due to the different cleaning principle, the gloves will not rub against the inner wall frequently or be repeatedly rubbed and turned over when cleaned in the ultrasonic cleaner. Therefore, the occurrence of particulate matter on the surface of the gloves is greatly reduced and will not cause particulate matter to exceed the standard. Attached Figure Description

[0043] Figure 1 This is a flowchart illustrating the molding process of the composite protective gloves of the present invention.

[0044] Figure 2This is a flow chart of the dust-free cleaning process for the composite protective gloves of the present invention. Detailed Implementation

[0045] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0046] A composite protective glove includes a main structural layer and a composite layer. The main structural layer is located on the inner side and comes into direct contact with the human body. The composite layer is located on the outer side of the main structural layer and comes into direct contact with the external environment. The composite layer can be one or more layers. When the composite layer is a multi-layer structure, the outer and inner layers are impregnated with different types of adhesives. The outer layer of the composite layer is impregnated with a first latex, which is made of PE material. The inner layer of the composite layer is impregnated with a second latex, which is made of NY or PET material, once or multiple times. The main structural layer is impregnated with a third latex, which is made of nitrile rubber, latex, PU, ​​or PVC material, preferably nitrile rubber.

[0047] Since the gloves need to be flipped over when removed from the mold after molding, the latex should be dipped sequentially from the outer surface to the inner surface during impregnation. Specifically, the first dip should be in PE latex (the surface material of the composite layer), followed by NY or PET latex (the inner material of the composite layer), and finally nitrile rubber latex (the material of the main structural layer). Because the inner layer of the composite layer is actually the middle layer of the glove, its function is to provide support and improve the overall mechanical and physical properties of the glove. Therefore, depending on the requirements of the final usage environment, if the environment does not have high requirements for the glove's mechanical properties, this layer can be omitted, and the nitrile rubber layer and PE layer alone can meet the requirements. If the usage requirements are high for the glove's mechanical properties, one or more layers can be impregnated as needed. When impregnating multiple layers, either NY or PET can be used for multiple impregnations, or a combination of both can be used.

[0048] like Figure 1 The diagram shows the molding process of the composite protective gloves of the present invention, which mainly includes the following steps:

[0049] Step 1: Clean and dry the hand mold used for immersion;

[0050] Step 2: Immerse the dried hand mold in the coagulant. After immersion, dry the hand mold and coat the surface of the hand mold with a layer of coagulant coating.

[0051] Step 3: Dip the hand mold into the first latex once, dry it after dipping, and coat the surface of the hand mold to form the first latex coating.

[0052] Step 4: Immerse the hand mold in the second latex and dry it once or multiple times to coat the surface of the first latex coating with one or more layers of the second latex coating.

[0053] Step 5: Immerse the hand mold in the third latex once, and dry it after immersion to coat the surface of the second latex coating with the third latex coating;

[0054] Step 6: Perform a chlorine wash on the surface of the third latex of the hand mold, and then dry it.

[0055] Step 7: Demold the composite gloves, which have undergone multiple dip-molding processes, from the hand mold;

[0056] Step 8: Perform multiple dust-free cleanings on the composite gloves.

[0057] In a preferred embodiment, the first latex is selected as PE latex, the second latex as PET latex, and the third latex as nitrile rubber latex. The following table shows the physical property test results for the three materials:

[0058]

[0059] The main structural layer uses a PE outer layer as the part that directly contacts the product. It has the characteristics of being non-toxic, low temperature resistant, chemically stable, acid and alkali resistant, low water absorption, and excellent antistatic properties. In particular, PE contains opening agents and slip agents, which can reduce the friction on the surface of the gloves, making the gloves easy to separate and preventing them from sticking together. Therefore, the outer layer of gloves coated with PE can be exempted from chlorine washing, avoiding secondary chlorine washing that contaminates the glove surface, and also reducing the number of subsequent dust-free cleaning cycles.

[0060] The inner layer of the composite layer, serving as both the intermediate and support layer, is made of PET material. It not only boasts excellent physical and mechanical properties, meeting various performance requirements for gloves such as tensile strength, elongation, and puncture resistance, but also withstands temperatures up to 120℃, exhibits fatigue resistance, stable performance, and excellent antistatic properties, providing strong protection.

[0061] The surface of the composite layer is made of nitrile rubber. As the part that comes into direct contact with the human body, it has excellent wear resistance, heat resistance, strong adhesion, and antistatic properties. It does not contain allergens and will not cause allergies due to hand sweating even after long-term wear.

[0062] After being impregnated with adhesive multiple times and then cured and bonded together at high temperatures, the gloves need to be cleaned in a dust-free environment after demolding to improve their cleanliness, so as to meet the requirements of use in different dust-free environments and reduce product contamination.

[0063] like Figure 2 The diagram shows the cleanroom cleaning process for composite protective gloves, which mainly includes the following steps:

[0064] Step 8.1: Select an ultrasonic cleaner as the cleaning equipment and clean the inside of the ultrasonic cleaner with a clean, lint-free cloth.

[0065] Step 8.2: Prepare the cleaning solvent. Place the gloves to be cleaned into the ultrasonic cleaner, with the gloves occupying 1 / 3 of the machine's internal space. Turn on the ultrasonic cleaner and heat the cleaning solvent to 40-50℃ before injecting it into the machine, with the cleaning solvent occupying 1 / 2 of the machine's internal space.

[0066] Step 8.3: After cleaning with an ultrasonic cleaner for 25-35 minutes, drain the cleaning solvent and then inject rinsing solvent for rinsing. The rinsing temperature is room temperature and the rinsing time is 30 minutes. After one rinsing, change the rinsing volume for the next rinsing. Repeat the rinsing of the gloves several times, but the number of rinsing times shall not exceed four.

[0067] Step 8.4: After rinsing, use a dryer to dry the gloves. Before putting the gloves in, clean the inside of the dryer with a lint-free cloth. Turn the gloves over in the dryer to dry them. The drying time should not exceed 90 minutes and the drying temperature should be 45-55℃.

[0068] Step 8.5: After drying, cool air is filtered through a high-efficiency filter and sent into the dryer to cool the dried gloves for 10-15 minutes.

[0069] In the above process, an ultrasonic cleaner was used instead of the original drum cleaner. Due to the different cleaning principle, the gloves will not rub against the inner wall frequently or be repeatedly rubbed and turned over when cleaned in the ultrasonic cleaner. Therefore, the occurrence of particulate matter on the surface of the gloves is greatly reduced and will not cause particulate matter to exceed the standard.

[0070] The preferred main agent is deionized DI water (resistivity 18 MΩ·cm, ≥0.5um particles ≤1 / ml, metal ions (Na, Cl, Fe, Cu, Ca, K, etc.) ≤10ppt), and the auxiliary agent is a silicone oil remover for gloves. It is a near-neutral concentrate (pH value: 7) produced by a water polyol-based mixture synthesized from high-quality anionic and nonionic surfactants. It has strong cleaning and purification properties for pollutants (such as silicone oil, amino compounds, DOP, etc.), and is washable, making the surface of rubber gloves clean and smooth. The concentration ratio of silicone oil remover is 2-5%, and the remainder is deionized DI water, accounting for 95-98%. The proportion of silicone oil remover can be appropriately increased according to the degree of contamination of the gloves to be cleaned.

[0071] The preferred rinsing solvent is deionized DI water (resistivity 18 MΩ·cm, ≥0.5 μm particles ≤1 / ml, metal ions (Na, Cl, Fe, Cu, Ca, K, etc.) ≤10 ppt). The rinsing temperature should be room temperature, and each rinsing time should be 30 minutes, with the number of rinsing cycles limited to four. The DI water should be replaced after each rinsing. Excessive rinsing can cause wear and tear on the surface of the gloves due to friction with the metal parts of the cleaning machine, resulting in severe finger marks and an increase in LPC (Low Percentage Curve).

[0072] The results after four dust-free cleaning processes are shown in the table below:

[0073] Table 1 - Technical requirements for ISO Class 6 (Class 1000), ISO Class 5 (Class 100), and ISO Class 4 (Class 10). The "above fingerprints" part mainly refers to ISO 23464-2020 "Nitrile rubber cleanroom gloves - Standard", and the "below fingerprints" part (including fingerprints) mainly refers to industry standards.

[0074] Table 2 - The results of the second rinsing meet ISO Class 6 (Class 1000) and relevant industry standards;

[0075] Table 3 - The results of three rinsing cycles meet ISO Class 5 (Class 100) and relevant industry standards;

[0076] Table 4 - The results of four rinsing cycles meet ISO Level 4 (Level 10) and relevant industry standards;

[0077]

[0078]

[0079]

[0080]

[0081] In this invention, the chlorine washing process is changed from the original two-stage chlorine washing to a single-stage chlorine washing, that is, only the inner surface of the gloves (the part that comes into contact with the human hand) is chlorinated, thereby achieving the purpose of making them easier to wear, reducing the chlorine content, and avoiding product contamination.

[0082] Multiple dipping processes, not limited to three times, should not be less than two times. The number of dipping processes can be reduced or increased according to actual needs, but the goal is to improve the physical and mechanical properties, cleanliness, and other requirements of the gloves. This can eliminate the need for the vulcanizing process, which originally required adding a vulcanizing agent to improve the flexibility, strength, and comfort of the gloves through high-temperature curing. This can be achieved through a multi-layer, multi-material structure, thus eliminating the need for vulcanization. This achieves the goal of improving glove performance while preventing the generation of sulfur elements and avoiding product contamination.

[0083] Cleanroom cleaning processes allow for graded management of gloves, benchmarking gloves with different cleaning cycles to meet different application scenarios and avoid over- or under-performance of products. The number of cleanroom cleaning cycles should not exceed four.

[0084] The above descriptions are merely several preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations and substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A composite protective glove, characterized in that: The glove comprises a main structural layer and a composite layer. The main structural layer is located on the inner side and comes into direct contact with the human body. The composite layer is located on the outer side of the main structural layer and comes into direct contact with the external environment. The composite layer has a multi-layer structure, with the outer and inner layers formed by impregnation with different types of adhesives. The outer layer of the composite layer is formed by impregnation with a first latex, which is made of PE material. The inner layer of the composite layer is formed by impregnation with a second latex, which is made of NY or PET material, once or multiple times. The main structural layer is formed by impregnation with a third latex, which is made of nitrile rubber, latex, PU, ​​or PVC material. The impregnation latex is applied sequentially from the outer surface of the glove to the inner surface. The hand mold is impregnated once in the first latex. After impregnation, the glove is dried, and a first latex coating is applied to the surface of the hand mold. The hand mold is immersed in the second latex and dried once or multiple times, so that the surface of the first latex coating is coated with one or more layers of the second latex coating; The hand mold is immersed in the third latex once, and then dried after immersion, so that the surface of the second latex coating is coated with the third latex coating.

2. A molding and dust-free cleaning process for composite protective gloves, characterized in that, Includes the following steps: Step 1: Clean and dry the hand mold used for immersion; Step 2: Immerse the dried hand mold in the coagulant. After immersion, dry the hand mold and coat the surface of the hand mold with a layer of coagulant coating. Step 3: The first immersion is in PE latex. The hand mold is immersed in the first latex once, and after immersion, it is dried. The surface of the hand mold is coated to form the first latex coating. Step 4: Next, the mold is immersed in NY or PET latex. The mold is then immersed in the second latex and dried once or multiple times to coat the surface of the first latex coating with one or more layers of the second latex coating. Step 5: The last thing to be impregnated is nitrile rubber latex. The hand mold is immersed in the third latex once, and then dried after impregnation, so that the surface of the second latex coating is coated with the third latex coating. Step 6: Perform a chlorine wash on the third latex surface of the hand mold, and then dry it; the three-layer composite material improves the mechanical properties of the glove, and the glove production process no longer requires the use of vulcanization. Step 7: Demold the composite gloves, which have undergone multiple dip-molding processes, from the hand mold; Step 8: Perform multiple dust-free cleanings on the composite gloves.

3. The molding and dust-free cleaning process for the composite protective gloves according to claim 2, characterized in that, Step 8 also includes the following steps: Step 8.1: Select an ultrasonic cleaner as the cleaning equipment and clean the inside of the ultrasonic cleaner with a clean, lint-free cloth. Step 8.2: Prepare the cleaning solvent. Place the gloves to be cleaned into the ultrasonic cleaner, with the gloves occupying 1 / 3 of the machine's internal space. Turn on the ultrasonic cleaner and heat the cleaning solvent to 40-50℃ before injecting it into the machine, with the cleaning solvent occupying 1 / 2 of the machine's internal space. Step 8.3: After cleaning with an ultrasonic cleaner for 25-35 minutes, drain the cleaning solvent and then inject rinsing solvent for rinsing. The rinsing temperature is room temperature and the rinsing time is 30 minutes. After one rinsing, change the rinsing volume for the next rinsing. Repeat the rinsing process several times. Step 8.4: After rinsing, use a dryer to dry the gloves. Before putting the gloves in, clean the inside of the dryer with a lint-free cloth. Turn the gloves over in the dryer to dry them. The drying time should not exceed 90 minutes and the drying temperature should be 45-55℃. Step 8.5: After drying, cool the gloves for 10-15 minutes.

4. The molding and dust-free cleaning process for the composite protective gloves according to claim 3, characterized in that: In Step 8.2, the prepared cleaning solvent includes a main agent and an auxiliary agent, with the main agent accounting for 95-98% of the total volume of the cleaning solvent and the auxiliary agent accounting for 2-5% of the total volume of the cleaning solvent.

5. The molding and dust-free cleaning process for the composite protective gloves according to claim 4, characterized in that: The main agent is deionized DI water, with a resistivity of 18 MΩ·cm, ≤1 particle / ml of ≥0.5 μm particles, and ≤10 ppt concentration of metal ions Na, Cl, Fe, Cu, Ca, and K.

6. The molding and dust-free cleaning process for the composite protective gloves according to claim 4, characterized in that: The additive is a silicone oil remover with a pH value of 7.

7. The molding and dust-free cleaning process for the composite protective gloves according to claim 3, characterized in that: The rinsing solvent in Step 8.3 is deionized DI water with a resistivity of 18 MΩ·cm, ≤1 particle / ml of ≥0.5 μm particles, and ≤10 ppt concentration of metal ions Na, Cl, Fe, Cu, Ca, and K.

8. The molding and dust-free cleaning process for the composite protective gloves according to claim 3, characterized in that: In Step 8.3, the total number of rinsings for the gloves shall not exceed four.

9. The molding and dust-free cleaning process for the composite protective gloves according to claim 3, characterized in that: In Step 8.5, the cold air is filtered through a high-efficiency filter to a dust-free state before being introduced into the dryer to cool the dried gloves.

Images