Winter waterproof cold-proof breathable glove and preparation method thereof

Abstract

The invention provides a winter waterproof and cold-proof breathable glove and a preparation method thereof. The winter waterproof and cold-proof breathable glove comprises a glove inner liner layer, a high-elasticity waterproof and breathable film layer and a glove outer liner layer which are sequentially arranged from inside to outside. Wherein the adopted high-elastic waterproof breathable film is prepared from the following components in parts by weight: 60 to 99 parts of TPU (Thermoplastic Polyurethane) particles, 0.1 to 30 parts of PA (Polyamide) particles and 0.1 to 10 parts of auxiliaries; the auxiliary agent is selected from one or more of titanium dioxide, silicon dioxide, silicon carbide, graphene powder and aluminum oxide. The high-elasticity waterproof breathable film has good moisture permeability and waterproofness, also has high strength and elasticity, can be used as a middle layer to be added into gloves, and enables the prepared winter waterproof cold-proof breathable gloves to have both waterproofness and breathability.

Description

Technical Field

[0001] The present invention relates to the technical field of security products, and particularly to a waterproof, cold-proof and breathable glove for winter and a preparation method thereof. Background Art

[0002] When winter comes, the temperature is generally low. When working outdoors in low temperature, especially in bad weather such as rain, snow, or in extreme environments such as underwater, keeping the hands warm is essential. However, the existing waterproof and warm gloves have one of the following disadvantages: 1) After wearing and using for a long time, the hands will feel stuffy and even sweat; 2) When wearing gloves for long-term outdoor work, rain and snow will still penetrate into the gloves, resulting in a cold feeling in the hands.

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

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a waterproof, cold-proof and breathable glove for winter and a preparation method thereof.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] In the first aspect, the present invention provides a highly elastic waterproof and breathable film, which 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 additives;

[0007] Among them, the additives are selected from one or more of titanium dioxide, silicon dioxide, silicon carbide, graphene powder, and aluminum oxide.

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

[0009] In the second aspect, the present invention provides a preparation method of a highly elastic waterproof and breathable film, which comprises the following steps: slowly stirring the TPU particles, PA particles, and additives evenly, then performing sufficient melt mixing, and blowing the obtained molten mixture to obtain the highly elastic waterproof and breathable film.

[0010] As a preferred embodiment, the melting temperature for the melt mixing is 150 - 220 °C.

[0011] In the third aspect, the present invention provides an application of the highly elastic waterproof and breathable film in the preparation of a waterproof, cold-proof and breathable glove for winter.

[0012] Fourth aspect, the present invention provides a winter waterproof, cold-proof and breathable glove, which includes a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from inside to outside.

[0013] As a preferred solution, the glove inner liner layer is a knitted inner liner layer; more preferably, it is a knitted fleece fabric inner liner layer.

[0014] As a preferred solution, the glove outer liner layer is an impregnated knitted outer liner layer.

[0015] As a preferred solution, the fibers used in the knitted inner liner layer and the impregnated knitted outer liner layer are each selected from any one of filament yarns of polyamide, polyester, viscose, polyethylene, aramid, cotton or blended yarns of two or more of them;

[0016] The impregnated knitted outer liner layer is obtained by impregnating the knitted outer liner palm part woven by knitting process and then drying; the latex used for impregnation is at least one of nitrile, PU, latex, PVC, silica gel, neoprene.

[0017] The knitted inner liner layer and the impregnated knitted outer liner layer used in the present invention are both prepared by conventional methods, and the present invention does not make special limitations.

[0018] Fifth aspect, the present invention provides a preparation method of a winter waterproof, cold-proof and breathable glove, which includes the following steps:

[0019] A1. Lay 2 layers of high-elastic waterproof and breathable film flat, and then press them to obtain a glove-shaped high-elastic waterproof and breathable film layer.

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

[0021] A3. Heat the put-on glove to melt the glue dots, bond the glove inner liner layer, the high-elastic waterproof and breathable film layer and the glove outer liner layer together, and finally sew the edges of the glove wrist part to obtain a winter waterproof, cold-proof and breathable glove.

[0022] As a preferred solution, in step A3, the temperature of the heat baking is 80 - 150 °C, and the time of the heat baking is 10 - 30 minutes.

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

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

[0025] Unless otherwise defined, the technical terms or scientific terms used in this specification and claims shall have the ordinary meanings understood by those of ordinary skill in the technical field to which this application belongs. All numerical values listed herein from the lowest value to the highest value refer to all numerical values obtained by incrementing by one unit between the lowest value and the highest value when the difference between the lowest value and the highest value is more than two units.

[0026] The following will describe the detailed implementation manners of this application. It should be noted that in the process of the specific description of these implementation manners, for the sake of concise description, this specification may not describe all features of the actual implementation manners in detail. Without departing from the spirit and scope of this application, those skilled in the art can modify and replace the implementation manners of this application, and the obtained implementation manners are also within the protection scope of this application.

[0027] In order to obtain winter waterproof, cold-proof and breathable gloves with both waterproof property and breathability, the present invention attempts to add a waterproof and breathable film into the gloves to obtain waterproof performance and breathable performance. When adding the waterproof and breathable film into the gloves, the requirements of strength and elasticity also need to be met. Otherwise, during the use of the gloves, the middle film layer is very likely to break. Based on this, the present invention has developed a high-elastic waterproof and breathable film and added it as an intermediate layer into the gloves, achieving good waterproof property and breathability, and at the same time having high strength and high elasticity, avoiding the problem of its easy breakage.

[0028] Embodiment

[0029] The following will elaborate on the embodiments of this application. These embodiments are implemented on the premise of the technical solution of this application, and detailed implementation manners 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, with the model number Desmopan 5080A; the PA particles used were purchased from DuPont in the United States, with the model number PA6-73G45L; the ABS particles used were purchased from Dongguan Nabichuan Plastic Co., Ltd., with the model number NBCSH and a particle size of 1-5 μm; the silica powder used was purchased from Xuzhou Yingtuo New Materials Co., Ltd., with a particle size of 1-5 μm; the silicon oxide powder used was purchased from Jinan Chenghecheng New Materials Co., Ltd., with a particle size of 2-8 μm; the titanium dioxide used was purchased from Foshan Jinlinda Chemical Co., Ltd., with the model number R-6618(T) and a particle size of 1-5 μm; the graphene powder used was purchased from Changzhou Sixth Element, with a particle size of 3-10 μm.

[0031] In the specific embodiments of the present invention, the equipment used is all equipment for the production and preparation of conventional gloves, and the raw materials used are also prepared or purchased by conventional methods, and the present invention does not make special limitations. The glove inner liner layer and the glove outer liner layer are both prepared or purchased by conventional methods, and the present invention does not make special limitations.

[0032] Example 1

[0033] This example provides a winter waterproof, cold-proof and breathable glove, which includes a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from the inside to the outside. Its preparation method includes the following steps:

[0034] 1) Preparation of the high-elastic waterproof and breathable film: By weight, 95 parts of TPU particles, 4 parts of PA particles, and 1 part of silica powder are slowly stirred evenly, and then fully melted and mixed at a melting temperature of 180°C. The obtained molten mixture is placed in a blown film machine for blowing film, and a high-elastic waterproof and breathable film with a thickness of 0.025 mm is obtained.

[0035] 2) Preparation of the glove-shaped high-elastic waterproof and breathable film layer: The glove is molded, and a corresponding-size mold is prepared according to the glove size. Two layers of high-elastic waterproof and breathable films are laid flat, and then pressed by a high-frequency heat sealer to obtain a glove-shaped high-elastic waterproof and breathable film layer.

[0036] 3) Preparation of the glove inner liner layer: The polyester filament is woven by a knitting process and then processed by a raising machine to obtain a knitted and raised fabric inner liner layer.

[0037] 4) Preparation of the glove outer liner layer: The polyester filament is knitted into a knitted outer liner by a knitting process, and then the palm part is immersed in the nitrile slurry and dried to obtain an impregnated knitted outer liner layer.

[0038] 5) Glove preparation: On the glove composite mold, first put on a glove inner liner layer prepared in step 3), place the dispensing mold on the glove inner liner layer for dispensing; then put the high-elastic waterproof and breathable film layer in the shape of a glove prepared in step 2) outside the glove inner liner layer, place the dispensing mold on the waterproof and breathable film for dispensing; then put the glove outer liner layer prepared in step 4) outside the high-elastic waterproof and breathable film layer. In this way, the three layers are nested together, and then placed in an oven and baked at 100 °C for 20 minutes to melt the glue dots on the inner and outer sides of the high-elastic waterproof and breathable film, and bond the glove inner liner layer, the high-elastic waterproof and breathable film 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 gloves.

[0039] Example 2

[0040] This example provides a winter waterproof, cold-proof and breathable glove, which includes a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from inside to outside. Its preparation method includes the following steps:

[0041] 1) Preparation of high-elastic waterproof and breathable film: By weight, slowly stir 98 parts of TPU particles, 1 part of PA particles, and 1 part of silicon carbide powder evenly, and then carry out sufficient melting and mixing at a melting temperature of 150 °C. The obtained molten mixture is placed in a blown film machine for blown film to obtain a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0042] 2) Preparation of glove-shaped high-elastic waterproof and breathable film layer: Open the glove mold, prepare a mold with corresponding size according to the glove size, lay 2 layers of high-elastic waterproof and breathable film flat, and then use a high-frequency heat sealer for pressing to obtain a glove-shaped high-elastic waterproof and breathable film layer.

[0043] 3) Preparation of glove inner liner layer: Weave polyester filament by knitting process, and then process it with a raising machine to obtain a knitted and raised inner liner layer.

[0044] 4) Preparation of glove outer liner layer: Weave polyester filament into a knitted outer liner by knitting process, then immerse the palm part in nitrile slurry, and then dry it to obtain an impregnated knitted outer liner layer.

[0045] 5) Glove preparation: On the glove composite mold, first put on a glove inner liner layer prepared in step 3), place the dispensing mold on the glove inner liner layer for dispensing; then put the high-elastic waterproof and breathable film layer in the shape of a glove prepared in step 2) on the outside of the glove inner liner layer, place the dispensing mold on the waterproof and breathable film for dispensing; then put the glove outer liner layer prepared in step 4) on the outside of the high-elastic waterproof and breathable film layer. In this way, the three layers are sleeved together and placed in an oven for baking at 80 °C for 30 minutes to melt the glue dots on the inside and outside of the waterproof and breathable film, bonding the glove inner liner, the waterproof film, and the outer liner together; finally, sew the edges of the glove wrist to obtain the winter waterproof, cold-proof, and breathable gloves.

[0046] Example 3

[0047] This example provides a winter waterproof, cold-proof, and breathable glove, including a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from the inside to the outside. Its preparation method includes the following steps:

[0048] 1) Preparation of the high-elastic waterproof and breathable film: By weight, slowly stir 90 parts of TPU particles, 8 parts of PA particles, and 2 parts of silicon carbide powder evenly, and then perform sufficient melting and mixing at a melting temperature of 220 °C. The obtained molten mixture is placed in a blown film machine for blowing film to obtain a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0049] 2) Preparation of the glove-shaped high-elastic waterproof and breathable film layer: Open the glove mold, prepare a mold with corresponding dimensions according to the glove size, lay 2 layers of high-elastic waterproof and breathable films flat, and then use a high-frequency heat sealer for pressing to obtain the glove-shaped high-elastic waterproof and breathable film layer.

[0050] 3) Preparation of the glove inner liner layer: Weave polyester filaments by knitting process and then process them with a raising machine to obtain a knitted and raised inner liner layer.

[0051] 4) Preparation of the glove outer liner layer: Weave polyester filaments into a knitted outer liner by knitting process, then immerse the palm part in nitrile slurry and dry it to obtain the impregnated knitted outer liner layer.

[0052] 5) Glove preparation: On the glove composite mold, first put on a glove inner liner layer prepared in step 3), place the dispensing mold on the glove inner liner layer for dispensing; then put the high-elastic waterproof and breathable film layer in the shape of a glove prepared in step 2) on the outside of the glove inner liner layer, place the dispensing mold on the waterproof and breathable film for dispensing; then put the glove outer liner layer prepared in step 4) on the outside of the high-elastic waterproof and breathable film layer. In this way, the three layers are put together and placed in an oven for heat baking at 150 °C for 10 minutes to melt the glue dots on the inside and outside of the waterproof and breathable film, connecting the glove inner liner, the waterproof film, and the outer liner with glue; finally, sew the edges of the glove wrist to obtain a winter waterproof, cold-proof, and breathable glove.

[0053] Example 4

[0054] This example provides a winter waterproof, cold-proof, and breathable glove, which includes a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from the inside to the outside. Its preparation method includes the following steps:

[0055] 1) Preparation of the high-elastic waterproof and breathable film: By weight, slowly stir 90 parts of TPU particles, 5 parts of PA particles, and 5 parts of silicon carbide powder evenly, and then perform sufficient melting and mixing at a melting temperature of 180 °C. The obtained molten mixture is put into a blown film machine for blown film to obtain a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0056] 2) Preparation of the glove-shaped high-elastic waterproof and breathable film layer: Open the glove mold, prepare a mold with corresponding size according to the glove size, lay 2 layers of high-elastic waterproof and breathable films flat, and then use a high-frequency heat sealer for pressing to obtain a glove-shaped high-elastic waterproof and breathable film layer.

[0057] 3) Preparation of the glove inner liner layer: Weave the polyester filament by knitting process and then process it with a raising machine to obtain a knitted and raised inner liner layer.

[0058] 4) Preparation of the glove outer liner layer: Weave the polyester filament into a knitted outer liner by knitting process, then immerse the palm part in nitrile slurry and then dry it to obtain an impregnated knitted outer liner layer.

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

[0060] Example 5

[0061] This example provides a winter waterproof, cold-proof and breathable glove, which includes a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from inside to outside. Its preparation method includes the following steps:

[0062] 1) Preparation of high-elastic waterproof and breathable film: By weight, slowly stir 85 parts of TPU particles, 10 parts of PA particles, and 5 parts of silica powder evenly, and then carry out sufficient melting and mixing at a melting temperature of 150 °C. The obtained molten mixture is put into a blown film machine for blown film to obtain a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0063] 2) Preparation of high-elastic waterproof and breathable film layer in the shape of a glove: Carry out glove mold opening, prepare a corresponding size mold according to the glove size, lay 2 layers of high-elastic waterproof and breathable film flat, and then use a high-frequency heat sealer for pressing to obtain a high-elastic waterproof and breathable film layer in the shape of a glove.

[0064] 3) Preparation of glove inner liner layer: After weaving polyester filament by knitting process, then use a raising machine for treatment to obtain a knitted and raised inner liner layer.

[0065] 4) Preparation of glove outer liner layer: Weave polyester filament into a knitted outer liner by knitting process, then immerse the palm part in nitrile slurry and then dry it to obtain an impregnated knitted outer liner layer.

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

[0067] Example 6

[0068] This example provides a winter waterproof, cold-proof and breathable glove, including a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from the inside to the outside. Its preparation method includes the following steps:

[0069] 1) Preparation of the high-elastic waterproof and breathable film: By weight, slowly stir 85 parts of TPU particles, 12 parts of PA particles, and 3 parts of silica powder evenly, and then carry out sufficient melting and mixing at a melting temperature of 150 °C. The obtained molten mixture is put into a blown film machine for blowing film to obtain a high-elastic waterproof and breathable film with a thickness of 0.025 mm.

[0070] 2) Preparation of the high-elastic waterproof and breathable film layer in the shape of a glove: Open the glove mold, prepare a corresponding size mold according to the glove size, lay 2 layers of high-elastic waterproof and breathable films flat, and then use a high-frequency heat sealer for pressing to obtain a high-elastic waterproof and breathable film layer in the shape of a glove.

[0071] 3) Preparation of the glove inner liner layer: After weaving the polyester filament by knitting process, then use a raising machine for treatment to obtain a knitted and raised inner liner layer.

[0072] 4) Preparation of the glove outer liner layer: Weave the polyester filament into a knitted outer liner by knitting process, then immerse the palm part in nitrile slurry and then dry it to obtain an impregnated knitted outer liner layer.

[0073] 5) Preparation of gloves: On the glove composite mold, first put on a glove inner liner layer prepared in step 3), place the dispensing mold on the glove inner liner layer for dispensing; then put the highly elastic waterproof and breathable film layer in the shape of a glove prepared in step 2) on the outside of the glove inner liner layer, place the dispensing mold on the waterproof and breathable film for dispensing; then put the glove outer liner layer prepared in step 4) on the outside of the highly elastic waterproof and breathable film layer. In this way, the three layers are put together and placed in an oven for heat baking at 120°C for 15 minutes to melt the glue dots on the inside and outside of the waterproof and breathable film, bonding the glove inner liner, the waterproof film, and the outer liner together; finally, sew the edges of the glove wrist to obtain the winter waterproof, cold-proof and breathable gloves.

[0074] Example 7

[0075] This example provides a winter waterproof, cold-proof and breathable glove, which includes a glove inner liner layer, a highly elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from inside to outside. Its preparation method is basically the same as that of Example 3, the only difference being that in step 1), the preparation of the highly elastic waterproof and breathable film is as follows: Slowly stir 70 parts of TPU particles, 20 parts of PA particles, and 10 parts of silicon carbide powder evenly, and then carry out sufficient melting and mixing at a melting temperature of 220°C. The obtained molten mixture is put into a blown film machine for blowing film to obtain a highly elastic waterproof and breathable film with a thickness of 0.025 mm.

[0076] Example 8

[0077] This example provides a winter waterproof, cold-proof and breathable glove, which includes a glove inner liner layer, a highly elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from inside to outside. Its preparation method is basically the same as that of Example 6, the only difference being that in step 1), the preparation of the highly elastic waterproof and breathable film is as follows: Slowly stir 75 parts of TPU particles, 15 parts of PA particles, and 10 parts of silicon dioxide powder evenly, and then carry out sufficient melting and mixing at a melting temperature of 150°C. The obtained molten mixture is put into a blown film machine for blowing film to obtain a highly elastic waterproof and breathable film with a thickness of 0.025 mm.

[0078] Example 9

[0079] This example provides a winter waterproof, cold-proof and breathable glove, which includes a glove inner liner layer, a highly elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from inside to outside. Its preparation method is basically the same as that of Example 5, the only difference being that in step 1), the preparation of the highly elastic waterproof and breathable film is as follows: Slowly stir 85 parts of TPU particles, 5 parts of PA particles, and 10 parts of silicon dioxide powder evenly, and then carry out sufficient melting and mixing at a melting temperature of 150°C. The obtained molten mixture is put into a blown film machine for blowing film to obtain a highly elastic waterproof and breathable film with a thickness of 0.025 mm.

[0080] Example 10

[0081] This embodiment provides a pair of winter waterproof, cold-proof and breathable gloves, which includes a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from inside to outside. Its preparation method is basically the same as that of Embodiment 5, except that: in step 1), the preparation of the high-elastic waterproof and breathable film is as follows: 80 parts of TPU particles, 15 parts of PA particles, and 5 parts of silicon dioxide powder are slowly stirred evenly, and then fully melted and mixed at a melting temperature of 150 °C. The obtained molten mixture is put into a blown film machine for blowing film, and a high-elastic waterproof and breathable film with a thickness of 0.025 mm is obtained.

[0082] Embodiment 11

[0083] This embodiment provides a pair of winter waterproof, cold-proof and breathable gloves, which includes a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from inside to outside. Its preparation method is basically the same as that of Embodiment 2, except that: in step 1), the preparation of the high-elastic waterproof and breathable film is as follows: 98 parts of TPU particles, 1 part of PA particles, and 1 part of titanium dioxide are slowly stirred evenly, and then fully melted and mixed at a melting temperature of 150 °C. The obtained molten mixture is put into a blown film machine for blowing film, and a high-elastic waterproof and breathable film with a thickness of 0.025 mm is obtained.

[0084] Embodiment 12

[0085] This embodiment provides a pair of winter waterproof, cold-proof and breathable gloves, which includes a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from inside to outside. Its preparation method is basically the same as that of Embodiment 2, except that: in step 1), the preparation of the high-elastic waterproof and breathable film is as follows: 98 parts of TPU particles, 1 part of PA particles, and 1 part of graphene powder are slowly stirred evenly, and then fully melted and mixed at a melting temperature of 150 °C. The obtained molten mixture is put into a blown film machine for blowing film, and a high-elastic waterproof and breathable film with a thickness of 0.025 mm is obtained.

[0086] Comparative Example 1

[0087] This comparative example provides a pair of winter waterproof, cold-proof and breathable gloves, which includes a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from inside to outside. Its preparation method is basically the same as that of Embodiment 6, except that: in step 1), the preparation of the high-elastic waterproof and breathable film is as follows: 85 parts of TPU particles, 15 parts of PA particles are slowly stirred evenly, and then fully melted and mixed at a melting temperature of 150 °C. The obtained molten mixture is put into a blown film machine for blowing film, and a high-elastic waterproof and breathable film with a thickness of 0.025 mm is obtained.

[0088] Comparative Example 2

[0089] This comparative example provides a pair of winter waterproof, cold-proof and breathable gloves, which includes a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from the inside to the outside. Its preparation method is basically the same as that of Example 4, except that: in step 1), the preparation of the high-elastic waterproof and breathable film is as follows: 90 parts of TPU particles and 10 parts of silicon carbide powder are slowly stirred evenly, and then fully melted and mixed at a melting temperature of 180 °C. The obtained molten mixture is placed in a blown film machine for blowing film, and a high-elastic waterproof and breathable film with a thickness of 0.025 mm is obtained.

[0090] Comparative Example 3

[0091] This comparative example provides a pair of winter waterproof, cold-proof and breathable gloves, which includes a glove inner liner layer, a high-elastic waterproof and breathable film layer, and a glove outer liner layer arranged in sequence from the inside to the outside. Its preparation method is basically the same as that of Example 6, except that: in step 1), the preparation of the high-elastic waterproof and breathable film is as follows: 85 parts of TPU particles, 12 parts of PBS particles, and 3 parts of silicon dioxide powder are slowly stirred evenly, and then fully melted and mixed at a melting temperature of 150 °C. The obtained molten mixture is placed in a blown film machine for blowing film, and a high-elastic waterproof and breathable film with a thickness of 0.025 mm is obtained.

[0092] Performance Test

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

[0094] Table 1

[0095]

[0096]

[0097] As can be seen from the results in Table 1 above, the moisture permeability results of the high-elastic waterproof and breathable films prepared in Examples 1-6, 9-12 are 5177-6528 g / m 2 ·24h, the strength is 35-48 MPa, the elongation at break is 402-539%, and the waterproofness results of the gloves prepared therefrom are 2-3 levels. In particular, the moisture permeability results of the high-elastic waterproof and breathable films prepared in Examples 1-4, 11-12 are 5464-6528 g / m 2· With a 24-hour duration, a strength of 40 - 48 MPa, and an elongation at break of 457 - 539%, and the waterproofness result of the gloves prepared therefrom is grade 3, with better effects.

[0098] Furthermore, from the result comparison between Example 2 and Examples 11 - 12, it can be seen that when the additive used is silicon carbide powder, the moisture permeability, strength, and elongation at break of the highly elastic waterproof and breathable film prepared therefrom are all superior to those of the highly elastic waterproof and breathable film prepared using titanium dioxide or graphene powder. It shows that better effects are achieved when the additive used is silicon carbide powder.

[0099] From the result comparison between Example 3 and Example 7, and the result comparison between Example 6 and Example 8, it can be seen that when the content of the TPU particles used is too low and the contents of the PA particles and the additive are too high, both lead to a significant deterioration in the moisture permeability and elongation at break of the highly elastic waterproof and breathable film prepared therefrom, and the waterproofness of the gloves prepared also deteriorates.

[0100] From the result comparison between Example 5 and Example 9, it can be seen that when the content of the additive is too high, it leads to a significant deterioration in the moisture permeability and strength of the highly elastic waterproof and breathable film prepared therefrom.

[0101] From the result comparison between Example 5 and Example 10, it can be seen that when the content of the PA is too high, it leads to a varying degree of deterioration in the moisture permeability, strength, and elongation at break of the highly elastic waterproof and breathable film prepared therefrom.

[0102] From the result comparison between Example 6 and Comparative Example 1, it can be seen that when the additive silicon dioxide powder is not added, it leads to a varying degree of deterioration in the moisture permeability, strength, and elongation at break of the highly elastic waterproof and breathable film prepared therefrom, and the waterproofness of the gloves prepared also deteriorates.

[0103] From the result comparison between Example 4 and Comparative Example 2, it can be seen that when the PA particles are not added, it leads to a significant deterioration in the moisture permeability and strength of the highly elastic waterproof and breathable film prepared therefrom, and the waterproofness of the gloves prepared also deteriorates.

[0104] From the result comparison between Example 6 and Comparative Example 1, it can be seen that when the PA particles are replaced with ABS particles, it leads to a varying degree of deterioration in the moisture permeability, strength, and elongation at break of the highly elastic waterproof and breathable film prepared therefrom.

[0105] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the invention. Obviously, those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A highly elastic waterproof breathable film, characterized in that: The invention 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 additives; Wherein, the auxiliary agent is selected from one or more of titanium dioxide, silicon dioxide, silicon carbide, graphene powder and aluminum oxide.

2. The highly elastic waterproof breathable film according to claim 1, characterized in that: The invention comprises the following components in parts by weight: 85-98 parts of TPU particles, 1-12 parts of PA particles and 1-5 parts of auxiliary agents.

3. A method for preparing the highly elastic waterproof breathable film according to claim 1, characterized in that: The method comprises the following steps: slowly stirring TPU particles, PA particles and additives, and then fully melting and mixing them, and blowing the obtained molten mixture to obtain a high-elastic waterproof and breathable film.

4. The method for preparing a highly elastic waterproof breathable film according to claim 3, characterized in that: The melting temperature used in the melt mixing is 150-220°C.

5. Use of the highly elastic waterproof and breathable film according to claim 1 or 2 in the preparation of winter waterproof, cold-proof and breathable gloves.

6. A winter waterproof, cold-proof and breathable glove, characterized in that: The invention comprises a glove liner layer, a high elastic waterproof breathable film layer as claimed in claim 1 or 2 and a glove outer liner layer which are arranged in sequence from inside to outside.

7. The winter waterproof, cold-proof and breathable gloves according to claim 6, characterized in that: The glove liner layer is a knitted liner layer; The outer liner of the gloves is a rubber-dipped knitted outer liner.

8. The winter waterproof, cold-proof and breathable gloves according to claim 7, characterized in that: The fibers used in the knitted inner liner layer and the dipped knitted outer liner layer are selected from any one filament of nylon, polyester, viscose, polyethylene, aramid, and cotton, or blended yarns of two or more thereof; The dipped knitted outer bladder layer is obtained by dipping the knitted outer bladder palm woven by a knitting process into glue and then drying it; the latex used for the dipped glue is at least one of nitrile, PU, ​​latex, PVC, silicone, and chloroprene.

9. A method for preparing winter waterproof, cold-proof and breathable gloves according to any one of claims 6 to 8, characterized in that: The following steps are involved: A1. Lay two layers of high-elastic waterproof and breathable films flat and then press them together to obtain a high-elastic waterproof and breathable film layer in the shape of a glove; A2. On the glove composite mold, first put on the glove liner layer, then dispense glue on the glove liner layer, then put the glove-shaped high-elastic waterproof and breathable film layer on the outside of the glove liner layer, and dispense glue on the high-elastic waterproof and breathable film layer, and then put the glue-impregnated glove outer liner layer on the outside of the high-elastic waterproof and breathable film layer; A3. Heat the gloves to melt the glue points, glue the glove liner, the high-elastic waterproof and breathable film layer and the glove outer liner together, and finally sew the edge of the glove 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 heat-drying temperature is 80-150° C., and the heat-drying time is 10-30 minutes.

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