Waterproof and coldproof breathable winter glove and preparation method therefor

Abstract

Provided in the present invention are a waterproof and coldproof breathable winter glove and a preparation method therefor. The glove comprises a glove liner layer, a high-elasticity waterproof breathable thin film layer and a glove shell layer which are sequentially arranged from inside to outside. The high-elasticity waterproof breathable thin film used therein comprises the following components in parts by weight: 60-99 parts of TPU particles, 0.1-30 parts of PA particles, and 0.1-10 parts of an auxiliary agent, wherein the auxiliary agent is selected from one or more of titanium dioxide, silicon dioxide, silicon carbide, a graphene powder and aluminum oxide. The high-elasticity waterproof breathable thin film has good moisture permeability and waterproofness, also has both high strength and elasticity, can be added as a middle layer to a glove, and enables the prepared waterproof and coldproof breathable winter glove to have both waterproofness and breathability.

Description

A waterproof, cold-proof, and breathable winter glove and its preparation method Technical Field

[0001] This invention relates to the field of security products technology, specifically to a winter-grade waterproof, cold-proof, and breathable glove and its preparation method. Background Technology

[0002] With the arrival of winter, temperatures are generally low. Keeping hands warm is essential, especially during inclement weather such as rain or snow, and in extreme environments like underwater work. However, existing waterproof and warm gloves have several drawbacks: 1) Prolonged wear can cause hands to feel stuffy and even sweaty; 2) During extended outdoor work, rainwater and snowmelt can still seep into the gloves, resulting in cold hands.

[0003] Therefore, there is an urgent need to develop a waterproof, cold-proof, and breathable outdoor work glove that combines breathability and waterproofness. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a winter waterproof, cold-proof and breathable glove and its preparation method.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] In a first aspect, the present invention provides a highly elastic waterproof and breathable film comprising the following components in parts by weight: 60-99 parts TPU particles, 0.1-30 parts PA particles, and 0.1-10 parts additives;

[0007] The additives are selected from one or more of titanium dioxide, silicon dioxide, silicon carbide, graphene powder, and alumina.

[0008] As a preferred embodiment, the high-elasticity waterproof and breathable membrane comprises the following components in parts by weight: 85-98 parts TPU particles, 1-12 parts PA particles, and 1-5 parts additives.

[0009] Secondly, the present invention provides a method for preparing a high-elasticity waterproof and breathable film, comprising the following steps: slowly stirring TPU particles, PA particles and additives until uniform, then fully melting and mixing them, and blowing the resulting molten mixture into a film to obtain a high-elasticity waterproof and breathable film.

[0010] As a preferred embodiment, the melting temperature used in the melt mixing is 150-220℃.

[0011] Thirdly, the present invention provides an application of a highly elastic waterproof and breathable membrane in the preparation of winter waterproof, cold-proof and breathable gloves.

[0012] Fourthly, the present invention provides a winter waterproof, cold-proof and breathable glove, comprising, from the inside out, an inner glove liner, a highly elastic waterproof and breathable film layer and an outer glove liner.

[0013] As a preferred embodiment, the inner lining of the glove is a knitted inner lining; more preferably, it is a knitted brushed fabric inner lining.

[0014] As a preferred embodiment, the outer liner of the glove is a knitted liner that has been impregnated with adhesive.

[0015] As a preferred embodiment, the fibers used in the knitted inner lining layer and the glued knitted outer lining layer are selected from any one of the following filaments or blended yarns: nylon, polyester, viscose, polyethylene, aramid, and cotton.

[0016] The impregnated knitted outer lining is obtained by impregnating the palm part of a knitted outer lining woven by a knitting process with adhesive and then drying it; the latex used for impregnation is at least one of nitrile, PU, ​​latex, PVC, silicone, and neoprene.

[0017] The knitted inner lining and the glued knitted outer lining used in this invention are both prepared by conventional methods, and this invention does not impose any particular limitations.

[0018] Fifthly, the present invention provides a method for preparing winter waterproof, cold-proof, and breathable gloves, comprising the following steps:

[0019] A1. Lay out two layers of high-elasticity waterproof and breathable film, and then press them together to obtain a glove-shaped high-elasticity waterproof and breathable film layer.

[0020] A2. On the glove composite mold, first put on the glove liner, then apply glue to the glove liner, then put on the glove-shaped high-elastic waterproof and breathable film layer on the outside of the glove liner, and apply glue to the high-elastic waterproof and breathable film layer, then put on the glue-impregnated glove liner on the outside of the high-elastic waterproof and breathable film layer.

[0021] A3. Heat the gloves to melt the adhesive dots, then glue the inner liner, the high-elastic waterproof and breathable membrane layer, and the outer liner together. Finally, sew the edges of the gloves at the wrist to obtain the winter waterproof, cold-proof, and breathable gloves.

[0022] As a preferred embodiment, in step A3, the temperature of the hot baking is 80-150℃, and the baking time is 10-30 minutes.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention uses a highly elastic waterproof and breathable film prepared by TPU particles, PA particles and additives. This film has good moisture permeability and waterproofness, and at the same time has high strength and elasticity. It can be added as an intermediate layer to gloves, so that the prepared winter waterproof and cold-proof breathable gloves can take into account both waterproofness and breathability. Detailed Implementation

[0025] Unless otherwise defined, the technical or scientific terms used in this specification and claims shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. All values ​​listed herein, ranging from the minimum to the maximum, refer to all values ​​obtained by incrementing the minimum and maximum values ​​by one unit when the difference between the minimum and maximum values ​​is more than two units.

[0026] The following describes specific embodiments of this application. It should be noted that, in order to provide a concise description, this specification cannot provide a detailed description of all features of the actual embodiments. Without departing from the spirit and scope of this application, those skilled in the art can modify and substitute the embodiments of this application, and the resulting embodiments are also within the protection scope of this application.

[0027] This invention aims to obtain waterproof, cold-proof, and breathable winter gloves that combine waterproofness and breathability. An attempt was made to incorporate a waterproof and breathable membrane into the gloves to achieve both waterproof and breathable properties. However, when adding the waterproof and breathable membrane to the gloves, it is also necessary to meet strength and elasticity requirements; otherwise, the membrane layer is prone to tearing during use. Based on this, this invention develops a highly elastic waterproof and breathable membrane, which is incorporated as an intermediate layer into the gloves, achieving good waterproofness and breathability while possessing high strength and high elasticity, thus avoiding the problem of easy tearing.

[0028] Example

[0029] The embodiments of this application will be described in detail below. These embodiments are implemented based on the technical solution of this application, and detailed implementation methods and specific operation processes are given. However, the protection scope of this application is not limited to the following embodiments.

[0030] In the following examples and comparative examples, the TPU particles used were purchased from Bayer, model Desmopan 5080A; the PA particles used were purchased from DuPont, model PA6-73G45L; the ABS particles used were purchased from Dongguan Nabaichuan Plastics Co., Ltd., model NBCSH, with a particle size of 1-5μm; the silica powder used was purchased from Xuzhou Yingtuo New Materials Co., Ltd., with a particle size of 1-5μm; the silica powder used was purchased from Jinan Chenghecheng New Materials Co., Ltd., with a particle size of 2-8μm; the titanium dioxide used was purchased from Foshan Jinlinda Chemical Co., Ltd., model R-6618(T), with a particle size of 1-5μm; and the graphene powder used was purchased from Changzhou Sixth Element, with a particle size of 3-10μm.

[0031] In the specific embodiments of this invention, the equipment used is all conventional glove manufacturing equipment, and the raw materials used are all prepared or purchased using conventional methods; this invention does not impose any particular limitations. The inner and outer lining layers of the gloves are both prepared or purchased using conventional methods; this invention does not impose any particular limitations.

[0032] Example 1

[0033] This embodiment provides a waterproof, cold-proof, and breathable winter glove, comprising, from the inside out, an inner liner, a highly elastic waterproof and breathable membrane layer, and an outer liner. Its preparation method includes the following steps:

[0034] 1) Preparation of high-elastic waterproof and breathable film: 95 parts TPU particles, 4 parts PA particles and 1 part silica powder are slowly stirred evenly by weight, and then fully melted and mixed at a melting temperature of 180℃. The resulting melt mixture is placed into a blown film machine for blown film production to obtain a high-elastic waterproof and breathable film with a thickness of 0.025mm.

[0035] 2) Preparation of glove-shaped high-elasticity waterproof and breathable membrane layer: Make a glove mold and prepare a mold of the corresponding size according to the size of the glove. Lay out two layers of high-elasticity waterproof and breathable film, and then press them together using a high-frequency heat sealing machine to obtain the glove-shaped high-elasticity waterproof and breathable membrane layer.

[0036] 3) Preparation of glove lining: Polyester filaments are woven using a knitting process and then processed using a napping machine to obtain a knitted napped fabric lining.

[0037] 4) Preparation of glove liner: Polyester filaments are knitted into a knitted liner using a knitting process. Then, the palm is immersed in nitrile sizing and dried to obtain the glued knitted liner.

[0038] 5) Glove preparation: On the glove composite mold, first, put on the glove liner layer prepared in step 3), and place the glue dispensing mold on the glove liner layer to apply glue; then, put on the glove-shaped high-elastic waterproof and breathable membrane layer prepared in step 2) on the outside of the glove liner layer, and place the glue dispensing mold on the waterproof and breathable membrane to apply glue; then, put on the glove outer liner layer prepared in step 4) on the outside of the high-elastic waterproof and breathable membrane layer. Combine these three layers together, and place them in an oven at 100°C for 20 minutes to melt the glue dots on the inside and outside of the high-elastic waterproof and breathable membrane, thus bonding the glove liner layer, the high-elastic waterproof and breathable membrane layer, and the glove outer liner layer together; finally, sew the edge of the glove wrist to obtain the winter waterproof, cold-proof, and breathable glove.

[0039] Example 2

[0040] This embodiment provides a waterproof, cold-proof, and breathable winter glove, comprising, from the inside out, an inner liner, a highly elastic waterproof and breathable membrane layer, and an outer liner. Its preparation method includes the following steps:

[0041] 1) Preparation of high-elastic waterproof and breathable film: 98 parts by weight of TPU particles, 1 part of PA particles and 1 part of silicon carbide powder are slowly stirred evenly, and then fully melted and mixed at a melting temperature of 150°C. The resulting melt mixture is placed into a blown film machine for blown film production to obtain a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0042] 2) Preparation of glove-shaped high-elasticity waterproof and breathable membrane layer: Make a glove mold and prepare a mold of the corresponding size according to the size of the glove. Lay out two layers of high-elasticity waterproof and breathable film, and then press them together using a high-frequency heat sealing machine to obtain the glove-shaped high-elasticity waterproof and breathable membrane layer.

[0043] 3) Preparation of glove lining: Polyester filaments are woven using a knitting process and then processed using a napping machine to obtain a knitted napped lining.

[0044] 4) Preparation of glove liner: Polyester filaments are knitted into a knitted liner using a knitting process. Then, the palm is immersed in nitrile sizing and dried to obtain the glued knitted liner.

[0045] 5) Glove preparation: On the glove composite mold, first, put on the glove liner layer prepared in step 3), and place the glue dispensing mold on the glove liner layer to apply glue; then, put on the glove-shaped high-elastic waterproof and breathable membrane layer prepared in step 2) on the outside of the glove liner layer, and place the glue dispensing mold on the waterproof and breathable membrane to apply glue; then, put on the glove outer liner layer prepared in step 4) on the outside of the high-elastic waterproof and breathable membrane layer. In this way, put the three layers together, put them in an oven and bake at 80°C for 30 minutes to melt the glue dots on the inside and outside of the waterproof and breathable membrane, and glue the glove liner, waterproof membrane and outer liner together; finally, sew the edge of the glove wrist to obtain the winter waterproof, cold-proof and breathable glove.

[0046] Example 3

[0047] This embodiment provides a waterproof, cold-proof, and breathable winter glove, comprising, from the inside out, an inner liner, a highly elastic waterproof and breathable membrane layer, and an outer liner. Its preparation method includes the following steps:

[0048] 1) Preparation of high-elasticity waterproof and breathable film: 90 parts by weight of TPU particles, 8 parts by weight of PA particles and 2 parts by weight of silicon carbide powder are slowly stirred evenly, and then fully melted and mixed at a melting temperature of 220℃. The resulting melt mixture is placed into a blown film machine for blown film production to obtain a high-elasticity waterproof and breathable film with a thickness of 0.025mm.

[0049] 2) Preparation of glove-shaped high-elasticity waterproof and breathable membrane layer: Make a glove mold and prepare a mold of the corresponding size according to the size of the glove. Lay out two layers of high-elasticity waterproof and breathable film, and then press them together using a high-frequency heat sealing machine to obtain the glove-shaped high-elasticity waterproof and breathable membrane layer.

[0050] 3) Preparation of glove lining: Polyester filaments are woven using a knitting process and then processed using a napping machine to obtain a knitted napped lining.

[0051] 4) Preparation of glove liner: Polyester filaments are knitted into a knitted liner using a knitting process. Then, the palm is immersed in nitrile sizing and dried to obtain the glued knitted liner.

[0052] 5) Glove preparation: On the glove composite mold, first, put on the glove liner layer prepared in step 3), and place the glue dispensing mold on the glove liner layer to apply glue; then, put on the glove-shaped high-elastic waterproof and breathable membrane layer prepared in step 2) on the outside of the glove liner layer, and place the glue dispensing mold on the waterproof and breathable membrane to apply glue; then, put on the glove outer liner layer prepared in step 4) on the outside of the high-elastic waterproof and breathable membrane layer. Combine these three layers together, and place them in an oven at 150°C for 10 minutes to melt the glue dots on the inside and outside of the waterproof and breathable membrane, thus bonding the glove liner, waterproof membrane, and outer liner together; finally, sew the edge of the glove at the wrist to obtain the winter waterproof, cold-proof, and breathable glove.

[0053] Example 4

[0054] This embodiment provides a waterproof, cold-proof, and breathable winter glove, comprising, from the inside out, an inner liner, a highly elastic waterproof and breathable membrane layer, and an outer liner. Its preparation method includes the following steps:

[0055] 1) Preparation of high-elastic waterproof and breathable film: 90 parts by weight of TPU particles, 5 parts by weight of PA particles and 5 parts by weight of silicon carbide powder are slowly stirred evenly, and then fully melted and mixed at a melting temperature of 180℃. The resulting melt mixture is placed into a blown film machine for blown film production to obtain a high-elastic waterproof and breathable film with a thickness of 0.025mm.

[0056] 2) Preparation of glove-shaped high-elasticity waterproof and breathable membrane layer: Make a glove mold and prepare a mold of the corresponding size according to the size of the glove. Lay out two layers of high-elasticity waterproof and breathable film, and then press them together using a high-frequency heat sealing machine to obtain the glove-shaped high-elasticity waterproof and breathable membrane layer.

[0057] 3) Preparation of glove lining: Polyester filaments are woven using a knitting process and then processed using a napping machine to obtain a knitted napped lining.

[0058] 4) Preparation of glove liner: Polyester filaments are knitted into a knitted liner using a knitting process. Then, the palm is immersed in nitrile sizing and dried to obtain the glued knitted liner.

[0059] 5) Glove preparation: On the glove composite mold, first, put on the glove liner layer prepared in step 3), and place the glue dispensing mold on the glove liner layer to apply glue; then, put on the glove-shaped high-elastic waterproof and breathable membrane layer prepared in step 2) on the outside of the glove liner layer, and place the glue dispensing mold on the waterproof and breathable membrane to apply glue; then, put on the glove outer liner layer prepared in step 4) on the outside of the high-elastic waterproof and breathable membrane layer. In this way, put the three layers together, put them in an oven and bake at 80°C for 30 minutes to melt the glue dots on the inside and outside of the waterproof and breathable membrane, and glue the glove liner, waterproof membrane and outer liner together; finally, sew the edge of the glove wrist to obtain the winter waterproof, cold-proof and breathable glove.

[0060] Example 5

[0061] This embodiment provides a waterproof, cold-proof, and breathable winter glove, comprising, from the inside out, an inner liner, a highly elastic waterproof and breathable membrane layer, and an outer liner. Its preparation method includes the following steps:

[0062] 1) Preparation of high-elasticity waterproof and breathable film: 85 parts TPU granules, 10 parts PA granules and 5 parts silica powder are slowly stirred evenly by weight, and then fully melted and mixed at a melting temperature of 150℃. The resulting melt mixture is placed into a blown film machine for blown film production to obtain a high-elasticity waterproof and breathable film with a thickness of 0.025mm.

[0063] 2) Preparation of glove-shaped high-elasticity waterproof and breathable membrane layer: Make a glove mold and prepare a mold of the corresponding size according to the size of the glove. Lay out two layers of high-elasticity waterproof and breathable film, and then press them together using a high-frequency heat sealing machine to obtain the glove-shaped high-elasticity waterproof and breathable membrane layer.

[0064] 3) Preparation of glove lining: Polyester filaments are woven using a knitting process and then processed using a napping machine to obtain a knitted napped lining.

[0065] 4) Preparation of glove liner: Polyester filaments are knitted into a knitted liner using a knitting process. Then, the palm is immersed in nitrile sizing and dried to obtain the glued knitted liner.

[0066] 5) Glove preparation: On the glove composite mold, first, put on the glove liner layer prepared in step 3), and place the glue dispensing mold on the glove liner layer to apply glue; then, put on the glove-shaped high-elastic waterproof and breathable membrane layer prepared in step 2) on the outside of the glove liner layer, and place the glue dispensing mold on the waterproof and breathable membrane to apply glue; then, put on the glove outer liner layer prepared in step 4) on the outside of the high-elastic waterproof and breathable membrane layer. In this way, put the three layers together, put them in an oven and bake at 90°C for 25 minutes to melt the glue dots on the inside and outside of the waterproof and breathable membrane, and glue the glove liner, waterproof membrane and outer liner together; finally, sew the edge of the glove wrist to obtain the winter waterproof, cold-proof and breathable glove.

[0067] Example 6

[0068] This embodiment provides a waterproof, cold-proof, and breathable winter glove, comprising, from the inside out, an inner liner, a highly elastic waterproof and breathable membrane layer, and an outer liner. Its preparation method includes the following steps:

[0069] 1) Preparation of high-elastic waterproof and breathable film: 85 parts TPU particles, 12 parts PA particles and 3 parts silica powder are slowly stirred evenly by weight, and then fully melted and mixed at a melting temperature of 150℃. The resulting melt mixture is placed into a blown film machine for blown film production to obtain a high-elastic waterproof and breathable film with a thickness of 0.025mm.

[0070] 2) Preparation of glove-shaped high-elasticity waterproof and breathable membrane layer: Make a glove mold and prepare a mold of the corresponding size according to the size of the glove. Lay out two layers of high-elasticity waterproof and breathable film, and then press them together using a high-frequency heat sealing machine to obtain the glove-shaped high-elasticity waterproof and breathable membrane layer.

[0071] 3) Preparation of glove lining: Polyester filaments are woven using a knitting process and then processed using a napping machine to obtain a knitted napped lining.

[0072] 4) Preparation of glove liner: Polyester filaments are knitted into a knitted liner using a knitting process. Then, the palm is immersed in nitrile sizing and dried to obtain the glued knitted liner.

[0073] 5) Glove preparation: On the glove composite mold, first, put on the glove liner layer prepared in step 3), and place the glue dispensing mold on the glove liner layer to apply glue; then, put on the glove-shaped high-elastic waterproof and breathable membrane layer prepared in step 2) on the outside of the glove liner layer, and place the glue dispensing mold on the waterproof and breathable membrane to apply glue; then, put on the glove outer liner layer prepared in step 4) on the outside of the high-elastic waterproof and breathable membrane layer. In this way, put the three layers together, put them in an oven and bake at 120°C for 15 minutes to melt the glue dots on the inside and outside of the waterproof and breathable membrane, and glue the glove liner, waterproof membrane and outer liner together; finally, sew the edge of the glove wrist to obtain the winter waterproof, cold-proof and breathable glove.

[0074] Example 7

[0075] This embodiment provides a winter waterproof, cold-proof, and breathable glove, comprising, from the inside out, an inner liner, a high-elastic waterproof and breathable film layer, and an outer liner. Its preparation method is basically the same as in Embodiment 3, except that: step 1) the preparation of the high-elastic waterproof and breathable film involves: slowly stirring 70 parts of TPU granules, 20 parts of PA granules, and 10 parts of silicon carbide powder until uniform, then fully melting and mixing them at a melting temperature of 220°C. The resulting molten mixture is then placed into a blown film machine for blown film production, resulting in a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0076] Example 8

[0077] This embodiment provides a winter waterproof, cold-proof, and breathable glove, comprising, from the inside out, an inner liner, a high-elastic waterproof and breathable film layer, and an outer liner. Its preparation method is basically the same as in Embodiment 6, except that: step 1) the preparation of the high-elastic waterproof and breathable film involves: slowly stirring 75 parts of TPU granules, 15 parts of PA granules, and 10 parts of silica powder until uniform, then fully melting and mixing them at a melting temperature of 150°C. The resulting molten mixture is then placed into a blown film machine for blown film production, resulting in a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0078] Example 9

[0079] This embodiment provides a winter waterproof, cold-proof, and breathable glove, comprising, from the inside out, an inner liner, a high-elastic waterproof and breathable film layer, and an outer liner. Its preparation method is basically the same as in Embodiment 5, except that: step 1) the preparation of the high-elastic waterproof and breathable film involves: slowly stirring 85 parts of TPU particles, 5 parts of PA particles, and 10 parts of silica powder until uniform, then fully melting and mixing them at a melting temperature of 150°C. The resulting molten mixture is then placed into a blown film machine for blown film production, resulting in a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0080] Example 10

[0081] This embodiment provides a winter-grade waterproof, cold-proof, and breathable glove, comprising, from the inside out, an inner liner, a high-elastic waterproof and breathable film layer, and an outer liner. Its preparation method is basically the same as in Embodiment 5, except that: step 1) the preparation of the high-elastic waterproof and breathable film involves: slowly stirring 80 parts of TPU granules, 15 parts of PA granules, and 5 parts of silica powder until uniform, then fully melting and mixing them at a melting temperature of 150°C. The resulting molten mixture is then placed into a blown film machine for blown film production, yielding a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0082] Example 11

[0083] This embodiment provides a winter waterproof, cold-proof, and breathable glove, comprising an inner liner, a high-elastic waterproof and breathable film layer, and an outer liner layer arranged sequentially from the inside out. Its preparation method is basically the same as in Embodiment 2, except that: step 1) the preparation of the high-elastic waterproof and breathable film involves: slowly stirring 98 parts of TPU particles, 1 part of PA particles, and 1 part of titanium dioxide until uniform, then fully melting and mixing them at a melting temperature of 150°C. The resulting molten mixture is then placed into a blown film machine for blown film production, resulting in a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0084] Example 12

[0085] This embodiment provides a winter-grade waterproof, cold-proof, and breathable glove, comprising, from the inside out, an inner liner, a high-elastic waterproof and breathable film layer, and an outer liner. Its preparation method is basically the same as in Embodiment 2, except that: step 1) the preparation of the high-elastic waterproof and breathable film involves: slowly stirring 98 parts of TPU particles, 1 part of PA particles, and 1 part of graphene powder until uniform, then fully melting and mixing them at a melting temperature of 150°C. The resulting molten mixture is then placed into a blown film machine for blown film production, yielding a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0086] Comparative Example 1

[0087] This comparative example provides a winter waterproof, cold-proof, and breathable glove, comprising an inner liner, a high-elastic waterproof and breathable film layer, and an outer liner layer arranged sequentially from the inside out. Its preparation method is basically the same as in Example 6, except that: step 1) the preparation of the high-elastic waterproof and breathable film involves: slowly stirring 85 parts of TPU granules and 15 parts of PA granules until uniform, then fully melting and mixing them at a melting temperature of 150°C. The resulting molten mixture is then placed into a blown film machine for blown film production, yielding a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0088] Comparative Example 2

[0089] This comparative example provides a winter waterproof, cold-proof, and breathable glove, comprising, from the inside out, an inner liner, a high-elastic waterproof and breathable film layer, and an outer liner. Its preparation method is basically the same as in Example 4, except that: step 1) the preparation of the high-elastic waterproof and breathable film involves: slowly stirring 90 parts of TPU granules and 10 parts of silicon carbide powder until uniform, then fully melting and mixing them at a melting temperature of 180°C. The resulting molten mixture is then placed into a blown film machine for blown film production, yielding a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0090] Comparative Example 3

[0091] This comparative example provides a winter-grade waterproof, cold-proof, and breathable glove, comprising, from the inside out, an inner liner, a highly elastic waterproof and breathable film layer, and an outer liner. Its preparation method is basically the same as in Example 6, except that: step 1) the preparation of the highly elastic waterproof and breathable film involves: slowly stirring 85 parts of TPU particles, 12 parts of PBS particles, and 3 parts of silica powder until uniform, then fully melting and mixing them at a melting temperature of 150°C. The resulting molten mixture is then placed into a blown film machine for blown film production, yielding a highly elastic waterproof and breathable film with a thickness of 0.025 mm.

[0092] Performance testing

[0093] The highly elastic waterproof and breathable films prepared in step 1) of each embodiment and comparative example were subjected to tests for moisture permeability, strength, and elasticity. The winter waterproof, cold-proof, and breathable gloves prepared in each embodiment and comparative example were subjected to waterproofing tests. Specifically, moisture permeability was tested using the ASTM E96 BW2000 method, strength and elongation at break were tested using the ASTM D882 method, and waterproofing was tested using the EN511:2006 method. The test results are shown in Table 1 below.

[0094] Table 1

[0095] As can be seen from the results in Table 1 above, the moisture permeability of the high-elasticity waterproof and breathable films prepared using Examples 1-6 and 9-12 is 5177-6528 g / m². 2 • 24h strength of 35-48 MPa, elongation at break of 402-539%, and the waterproofness of gloves prepared using these materials is grade 2-3. In particular, the high-elasticity waterproof and breathable membranes prepared using Examples 1-4 and 11-12 exhibit a moisture permeability of 5464-6528 g / m³. 2 • It has a strength of 40-48 MPa and an elongation at break of 457-539% over 24 hours, and the gloves made from it have a waterproof rating of 3, which is even better.

[0096] Further comparison of the results of Example 2 with those of Examples 11-12 shows that when silicon carbide powder is used as the additive, the moisture permeability, strength, and elongation at break of the high-elasticity waterproof and breathable film prepared using silicon carbide powder are all superior to those prepared using titanium dioxide or graphene powder. This indicates that silicon carbide powder is the more effective additive.

[0097] A comparison of the results of Examples 3 and 7, and Examples 6 and 8, shows that when the content of TPU particles is too low, or the content of PA particles and additives is too high, the moisture permeability and elongation at break of the high-elasticity waterproof and breathable film prepared by the film are significantly worse, and the waterproofness of the prepared gloves is also worse.

[0098] A comparison of the results of Example 5 and Example 9 shows that when the content of additives is too high, the moisture permeability and strength of the high-elasticity waterproof and breathable film prepared by them are significantly reduced.

[0099] A comparison of the results of Example 5 and Example 10 shows that when the PA content is too high, the moisture permeability, strength and elongation at break of the prepared high-elasticity waterproof and breathable film deteriorate to varying degrees.

[0100] As can be seen from the comparison between the results of Example 6 and Comparative Example 1, the absence of the additive silica powder resulted in varying degrees of deterioration in the moisture permeability, strength, and elongation at break of the high-elasticity waterproof and breathable film prepared therefrom, and the waterproofness of the gloves prepared therefrom also deteriorated.

[0101] As can be seen from the comparison between the results of Example 4 and Comparative Example 2, the absence of PA particles resulted in a significant decrease in the moisture permeability and strength of the prepared high-elasticity waterproof and breathable film, and the waterproof performance of the gloves prepared from it also deteriorated.

[0102] As can be seen from the comparison between the results of Example 6 and Comparative Example 1, replacing PA particles with ABS particles resulted in varying degrees of deterioration in the moisture permeability, strength, and elongation at break of the prepared high-elasticity waterproof and breathable film.

[0103] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A highly elastic, waterproof, and breathable membrane, characterized in that, The components include the following parts by weight: 60-99 parts TPU particles, 0.1-30 parts PA particles, and 0.1-10 parts additives; The additives are selected from one or more of titanium dioxide, silicon dioxide, silicon carbide, graphene powder, and alumina.

2. The high-elasticity waterproof and breathable membrane according to claim 1, characterized in that, The components include the following parts by weight: 85-98 parts TPU particles, 1-12 parts PA particles, and 1-5 parts additives.

3. A method for preparing a highly elastic, waterproof, and breathable membrane according to claim 1, characterized in that, The process includes the following steps: slowly stirring TPU particles, PA particles, and additives until uniform, then fully melting and mixing them, and finally blowing the resulting molten mixture into a film to obtain a high-elasticity, waterproof, and breathable film.

4. The method for preparing the high-elasticity waterproof and breathable membrane according to claim 3, characterized in that, The melting temperature used in the melt mixing is 150-220℃.

5. The application of a high-elasticity waterproof and breathable membrane according to claim 1 or 2 in the preparation of winter waterproof, cold-proof and breathable gloves.

6. A type of waterproof, cold-proof, and breathable glove for winter, characterized in that, It includes, from the inside out, an inner glove liner, a highly elastic waterproof and breathable film layer as described in claim 1 or 2, and an outer glove liner.

7. The winter waterproof, cold-proof, and breathable gloves according to claim 6, characterized in that, The inner lining of the gloves is a knitted inner lining; The outer liner of the glove is a knitted liner that has been impregnated with adhesive.

8. The winter waterproof, cold-proof, and breathable gloves according to claim 7, characterized in that, The fibers used in the knitted inner lining and the glued knitted outer lining are selected from any one of the following filaments or blended yarns: nylon, polyester, viscose, polyethylene, aramid, and cotton. The impregnated knitted outer lining is obtained by impregnating the palm part of a knitted outer lining woven by a knitting process with adhesive and then drying it; the latex used for impregnation is at least one of nitrile, PU, ​​latex, PVC, silicone, and neoprene.

9. A method for preparing a winter waterproof, cold-proof, and breathable glove according to any one of claims 6-8, characterized in that, Includes the following steps: A1. Lay out two layers of high-elasticity waterproof and breathable film, and then press them together to obtain a glove-shaped high-elasticity waterproof and breathable film layer. A2. On the glove composite mold, first put on the glove liner, then apply glue to the glove liner, then put on the glove-shaped high-elastic waterproof and breathable film layer on the outside of the glove liner, and apply glue to the high-elastic waterproof and breathable film layer, then put on the glue-impregnated glove liner on the outside of the high-elastic waterproof and breathable film layer. A3. Heat the gloves to melt the adhesive dots, then glue the inner liner, the high-elastic waterproof and breathable membrane layer, and the outer liner together. Finally, sew the edges of the gloves at the wrist to obtain the winter waterproof, cold-proof, and breathable gloves.

10. The method for preparing winter waterproof, cold-proof, and breathable gloves according to claim 9, characterized in that, In step A3, the baking temperature is 80-150℃ and the baking time is 10-30 minutes.

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