Casual pants with breathable film

Abstract

The pair of casual pants with the breathable film comprises a group of front pants pieces and rear pants pieces which are symmetrically arranged, and each front pants piece and the corresponding rear pants piece are oppositely arranged and are sewn and fixed through the edges to form pants leg parts; the trouser waist pieces are arranged above the trouser leg parts in a surrounding mode, and the trouser waist pieces are sewn and fixed to the upper portions of the front trouser pieces and the rear trouser pieces; breathable film cloth pieces are arranged on the trouser leg parts; the breathable cloth piece comprises a surface cloth layer facing the outside, a bottom cloth layer facing the inside and a nanofiber membrane layer arranged between the surface cloth layer and the bottom cloth layer. The high-elasticity fabric is selected as the surface cloth layer and the bottom cloth layer, and the high-elasticity nanofiber membrane is selected as the middle layer, so that the whole cloth piece keeps certain elasticity. By means of the structure, the windproof and breathable functions of the casual pants are guaranteed, and meanwhile the comfort degree and the movement freedom degree of the pants are kept.

Description

Technical Field

[0001] The utility model relates to a pair of casual pants with a breathable film, belonging to the technical field of clothing. Background Art

[0002] Casual pants are a type of trousers designed for comfort, style and functionality, suitable for everyday wear and informal occasions. Different from more formal suit trousers, casual pants emphasize a relaxed and comfortable wearing experience, and can be adapted to various seasons and activities according to different fabrics, styles and design details. By using soft, breathable and sometimes even windproof and waterproof fabrics, casual pants are designed to provide a dressing option that is both fashionable and practical.

[0003] In the manufacturing process of existing casual pants, the single-layer or two-layer composite fabric used in traditional casual pants is often not enough to effectively block the cold wind, especially in winter or windy environments, which greatly reduces the comfort of the wearer. In order to improve the windproof effect, some casual pants use multi-layer composite fabrics, and casual pants using multi-layer composite fabrics almost lose all elasticity. However, this fabric structure is likely to hinder the discharge of internal moisture, causing stuffiness and discomfort during wearing, especially in warm or humid climates. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a pair of casual pants with a breathable membrane to solve the problems of the prior art.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A pair of casual pants with a breathable membrane, comprising a group of symmetrically placed front pants pieces and rear pants pieces, each of the front pants pieces and the rear pants pieces being placed opposite to each other and being fixed by edge sewing to form a trouser leg portion;

[0007] A waist piece is arranged around the trouser legs, and the waist piece is sewn and fixed to the front trouser piece and the upper part of the back trouser piece;

[0008] The trouser legs are provided with a breathable membrane cloth piece;

[0009] The breathable membrane fabric sheet comprises a surface fabric layer facing outward, a bottom fabric layer facing inward, and a nanofiber membrane layer arranged between the surface fabric layer and the bottom fabric layer.

[0010] As a further improvement, waterproof layers are provided on both sides of the surface fabric layer.

[0011] As a further improvement, the waterproof layer on the side of the surface fabric layer facing the nanofiber membrane layer is connected to the nano-membrane layer via a glue layer.

[0012] As a further improvement, the nano-friction layer is connected to the base fabric layer via a glue layer.

[0013] As a further improvement, the surface fabric layer is a polyester-spandex four-way stretch surface fabric layer.

[0014] As a further improvement, the base fabric layer is made of special fiber fabric.

[0015] As a further improvement, the nanofiber membrane layer is made of polyvinyl alcohol material.

[0016] As a further improvement, the glue layer adopts polyurethane hot melt adhesive.

[0017] As a further improvement, a breathable portion is provided at the upper portion of the trouser leg, and the breathable portion includes a first cloth piece sewn on the front trouser piece and a second cloth piece sewn on the back trouser piece, the first cloth piece and the second cloth piece are sewn and fixed at the edges, and the first cloth piece and the second cloth piece are made of breathable membrane cloth pieces.

[0018] As a further improvement, the front trouser piece and the back trouser piece are both made of breathable membrane cloth pieces.

[0019] The beneficial effects of the utility model are:

[0020] The utility model selects highly elastic fabrics as the surface fabric layer and the bottom fabric layer, and highly elastic nanofiber membrane as the middle layer, so that the entire fabric piece maintains a certain elasticity. This structure not only ensures the windproof and breathable functions of the casual pants, but also maintains the comfort and freedom of movement of the pants.

[0021] The combination of the face fabric layer, nanofiber membrane layer and base fabric layer not only improves the windproof and breathable performance of the pants, but also adds waterproof and other functions due to the characteristics of the nanofiber membrane layer, which is particularly important for dealing with changeable weather and environment. In addition, through such high-tech fabric design, the casual pants are easy to maintain and durable at the same time.

[0022] Through the implementation of the above-mentioned plan, while retaining the characteristics of daily comfort and diverse styles, casual pants have been significantly improved in wind resistance, waterproofness, breathability, and user comfort through the innovative application of high-tech fabrics and structures, thereby better adapting to consumers' diversified demands for the functionality and comfort of casual pants. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of a pair of casual pants with a breathable film according to the present invention.

[0025] Figure 2 This is a diagram of the steps for preparing a pair of casual pants with a breathable film according to the present invention.

[0026] Figure 3 It is a schematic diagram of the layered structure of a pair of casual pants with a breathable film according to the present invention.

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of casual pants with a breathable film according to the present invention.

[0028] Figure 5 It is a three-dimensional structural schematic diagram of another embodiment of the casual pants with a breathable film of the present invention.

[0029] 1. Waterproof layer; 2. Surface fabric layer; 3. Hot melt adhesive; 4. Nanofiber membrane layer; 5. Bottom fabric layer; 6. Front trouser piece; 7. Back trouser piece; 8. Waist piece; 6. Breathable part; 91. First fabric piece; 92. Second fabric piece. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0031] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the manufacturing process of existing casual pants, the single-layer or two-layer composite fabric used in traditional casual pants is often not enough to effectively block the cold wind, especially in winter or windy environments, which greatly reduces the comfort of the wearer. In order to improve the windproof effect, some casual pants use multi-layer composite fabrics, and casual pants using multi-layer composite fabrics almost lose all elasticity. However, this fabric structure is likely to hinder the discharge of internal moisture, causing stuffiness and discomfort during wearing, especially in warm or humid climates.

[0033] Example 1

[0034] Reference Figure 1-4 As shown, a pair of casual pants with a breathable film comprises:

[0035] A group of symmetrically placed front trouser pieces 6 and rear trouser pieces 7, each of the front trouser pieces 6 and rear trouser pieces 7 is placed opposite to each other and fixed by edge sewing to form a trouser leg portion;

[0036] A trouser waist piece 8 is arranged around the trouser legs, and the trouser waist piece 8 is sewn and fixed to the front trouser piece 6 and the back trouser piece 7;

[0037] The trouser legs are provided with a breathable membrane cloth piece;

[0038] The breathable membrane fabric sheet includes a surface fabric layer 2 facing outward, a bottom fabric layer 5 facing inward, and a nanofiber membrane layer 4 disposed between the surface fabric layer 2 and the bottom fabric layer 5 .

[0039] This technical solution solves the problems of traditional casual pants in terms of windproof performance, breathability, elasticity and comprehensive functionality, thanks to its innovative materials and structural design. Through the application of a new breathable membrane fabric piece on the trouser legs, the specific implementation method of this solution is as follows:

[0040] The breathable membrane fabric integrated into the front trouser piece 6 and the back trouser piece 7 is composed of an outer surface fabric layer 2, an inner bottom fabric layer 5 and a middle nanofiber membrane layer 4. Such a structural design effectively blocks the cold wind from the outside while maintaining air permeability, ensuring that the moisture in the body can be effectively discharged through the nanofiber membrane layer 4, thus solving the problems of air permeability and moisture emission caused by traditional multi-layer composite fabrics.

[0041] By selecting highly elastic fabrics as the surface fabric layer 2 and the bottom fabric layer 5, and a highly elastic nanofiber membrane as the middle layer, this design allows the entire fabric to maintain a certain degree of elasticity. This structure not only ensures the windproof and breathable functions of the casual pants, but also maintains the comfort and freedom of movement of the pants.

[0042] The combination of the surface fabric layer 2, the nanofiber membrane layer 4 and the base fabric layer 5 not only improves the windproof and breathable performance of the pants, but also adds waterproof and other functions due to the characteristics of the nanofiber membrane layer 4, which is particularly important for coping with changeable weather and environment. In addition, through such high-tech fabric design, the casual pants are easy to maintain and durable at the same time.

[0043] Through the implementation of the above-mentioned plan, while retaining the characteristics of daily comfort and diverse styles, casual pants have been significantly improved in wind resistance, waterproofness, breathability, and user comfort through the innovative application of high-tech fabrics and structures, thereby better adapting to consumers' diversified demands for the functionality and comfort of casual pants.

[0044] The surface fabric layer 2 is provided with waterproof layers 1 on both sides. The waterproof layer 1 on the side of the surface fabric layer 2 facing the nanofiber membrane layer 4 is connected to the nanofiber membrane layer by a glue layer. The nanofiber membrane layer 5 is connected to the bottom fabric layer 5 by a glue layer. The surface fabric layer is made of polyester-ammonia four-sided stretch surface fabric layer 2. The bottom fabric layer is made of special fiber fabric. The nanofiber membrane layer 4 is made of polyvinyl alcohol material. The glue layer is made of polyurethane hot melt adhesive 3. The front trouser piece 6 and the back trouser piece 7 are both made of breathable membrane fabric.

[0045] A method for preparing a cloth sheet with a breathable membrane, the steps of which are as follows:

[0046] S1, select nylon-spandex or polyester-spandex four-way stretch fabric to make the surface fabric layer 2, polyurethane-based nanofiber material will be used to prepare the breathable membrane layer, special fiber fabric with moisture absorption and perspiration and light heat storage function will be used to prepare the bottom fabric layer, select environmentally friendly water-repellent additives to make the surface fabric waterproof layer 1, and select hot melt adhesive 3 for bonding between different layers;

[0047] S2, using a roller coating or spraying process, the waterproofing agent is evenly coated on the outer side of the surface fabric layer 2, and then heat-curing treatment is performed to form a waterproof layer 1 on both the front and back sides of the surface fabric;

[0048] S3, preparing a solution containing polyurethane, spinning the solution into nanofibers using electrospinning technology at a specific voltage (12-20 kV) and a jet speed (0.1-1.0 mL / h), and collecting the resulting film to form a nanofiber film layer 4;

[0049] Among them, it is necessary to control environmental conditions (temperature, humidity) to ensure that the quality and performance of the fiber membrane meet the requirements.

[0050] S4, applying hot melt adhesive 3 to the waterproof layer 1 on any side of the surface fabric layer 2 by using a spot-dotted or grid-coated technique, and bonding the prepared nanofiber membrane layer 4 thereto;

[0051] S5, using the same on-demand or grid coating technology on one side of the moisture wicking bottom fabric layer, and again using the hot melt adhesive 3, the bottom fabric layer is bonded to the other side of the nanofiber membrane layer 4 to form an initial fabric;

[0052] S6, using a heat press machine, at an appropriate temperature of 120-160°C and a pressure of 200-500 kPa, heat press for 1-3 seconds to accurately press the layers of material to which the hot melt adhesive 3 has been applied, to ensure uniform bonding between the layers of material and overall performance;

[0053] S7, trimming and washing the composite fabric to remove residual chemicals on the surface and adjust the fabric feel, thereby completing the fabric preparation.

[0054] Starting with a nylon-ammonia or polyester-ammonia four-sided stretch fabric layer 2 with stretch properties, then applying an environmentally friendly water-repellent additive to form a waterproof layer 1, preparing a breathable nanofiber membrane layer 4 through electrospinning technology, combining a bottom fabric layer with moisture absorption and perspiration function, and achieving precise bonding of each layer of material through hot pressing technology, and finally trimming and washing to complete the fabric preparation, ensuring the high performance and excellent quality of the finished fabric. Through the use of specific material selection and sophisticated process flow, this fabric innovatively combines the characteristics of windproof, breathable, waterproof and maintaining good elasticity, effectively solving the contradiction between warmth retention and breathability of traditional fabrics, while improving the comfort and practicality of wearing. This multifunctional design not only adapts to the harsh external environment, but also meets the needs of modern consumers for both functionality and comfort in clothing, especially in coping with changing climates and meeting the challenges of wearing in business and casual occasions. It has shown great advantages.

[0055] In step S1, a nylon-spandex or polyester-spandex four-way stretch fabric is selected to make the surface fabric layer 2, a polyurethane-based nanofiber material is used to prepare a breathable membrane layer, a special fiber fabric with moisture absorption and perspiration removal and light heat storage functions is used to prepare the base fabric layer, an environmentally friendly water-repellent additive is selected to make the surface fabric waterproof layer 1, and a hot melt adhesive 3 is selected to bond different layers;

[0056] By selecting nylon-spandex or polyester-spandex four-way stretch fabric as the surface fabric layer 2. These fabrics can provide good wearing comfort and free movement due to their excellent elasticity and recovery.

[0057] Among them, you need to ensure that the selected surface fabric has enough elasticity to adapt to different body shapes and exercise amounts, while maintaining a good appearance and not easily wrinkled.

[0058] In addition, the inner and outer layers of the face fabric may require different texture designs. The outer layer should have higher wear resistance, while the inner layer should focus more on soft touch and reduce friction.

[0059] Therefore, in this embodiment, a four-way stretch fabric of a mixture of nylon and spandex or a mixture of polyester and spandex is selected as the surface fabric layer.

[0060] The PU-based nanofiber membrane layer 4 has a microporous structure, which can allow water vapor to pass through while blocking the penetration of liquid water.

[0061] The membrane layer must be highly breathable so that the body's moisture and heat can be quickly discharged, improving the wearing comfort. While maintaining breathability, the membrane layer must be sufficiently waterproof to cope with bad weather.

[0062] Special fiber fabrics with moisture absorption and perspiration and light heat storage functions are used as the base fabric layer. The fabrics used for the base fabric layer should be special fibers that can effectively absorb moisture and perspiration, and have a certain light heat storage capacity to accumulate and utilize the heat emitted by the human body to provide additional warmth.

[0063] Among them, the base fabric layer should be soft and non-irritating to the skin to increase wearing comfort.

[0064] Moreover, it ensures that the base fabric quickly absorbs sweat from the skin surface and dissipates it through the sweat-wicking function of the fabric.

[0065] For environmentally friendly water-repellent additives, choose those that do not contain PFCs (perfluorinated compounds) to meet environmental protection requirements. It is necessary to ensure that the fabric has long-lasting waterproof ability after water-repellent treatment and remains effective after multiple washings. The essential characteristics of the fabric, such as elasticity and breathability, should not be affected.

[0066] For interlayer bonding, a hot melt adhesive 3 compatible with the fabric is selected, usually PU-based, to ensure good bonding with the face fabric, breathable membrane layer and base fabric layer.

[0067] It is necessary to ensure that the hot melt adhesive 3 is evenly applied at the appropriate temperature and pressure and forms a stable bond after cooling without bubbles or wrinkles. The bonding effect should be able to withstand repeated cleaning, maintain the fixation between the layers of material and the overall function of the composite fabric, and the bonding process should not damage any properties of the single layer material.

[0068] In step S2, a waterproofing agent is evenly applied to the outer side of the surface fabric layer 2 by a rolling or spraying process, and then a thermal curing treatment is performed to form a waterproof layer 1 on both the front and back sides of the surface fabric, as follows;

[0069] S21, ensure that the surface fabric layer 2 is clean and free of dust and oil stains; this can improve the adhesion effect of the waterproofing agent.

[0070] S22, use a suitable roller to roll-coat the opposite fabric layer 2 to ensure that the waterproofing agent is evenly distributed on the fabric.

[0071] Among them, controlling the viscosity of the additive and the pressure of the roller to avoid excessive coating that leads to a decrease in the air permeability of the surface fabric, as well as controlling the amount of additive coating are crucial to the final waterproof effect.

[0072] S23, during the heat curing process of the coated surface fabric layer 2, the temperature is set at 150-170°C and the curing time is between 1-2 minutes. Too high a temperature or too long a curing time may cause damage to the fabric, while too low a temperature or too short a curing time may cause incomplete curing of the waterproofing agent.

[0073] The viscosity of the additive is determined through experiments, the diluent ratio is appropriately adjusted, and then the waterproof additive is evenly coated by adjusting the roller pressure. The coating amount is controlled at 20g / m2. The surface cloth passes through a heat curing oven with a preset temperature of 160°C and a duration of 90 seconds.

[0074] In another embodiment, a spray gun for uniform spraying may be selected, and it is ensured that the spraying pressure and the nozzle type are suitable for the waterproofing agent used.

[0075] Among them. Control the distance and angle of spraying to ensure uniform coverage and avoid missing or excessive concentration. Adjust the moving speed during spraying so that the coating is not too thick or too thin.

[0076] In the heat curing process, like the roller coating process, the heat curing after spraying also requires precise control of temperature and time.

[0077] If the spraying process is adopted, an automatic spray gun is used, which is set at a distance of 15 cm from the fabric, and the nozzle is evenly swept across the fabric surface at a 45° angle. The sprayed fabric is also sent to the heat curing oven, and the curing conditions are the same as those of roller coating.

[0078] Through the above precise process control, it can be ensured that the jacket fabric has uniform and lasting waterproof performance while maintaining the breathability and elasticity of the fabric.

[0079] In step S3, a solution containing polyurethane is prepared, and the solution is spun into nanofibers by electrospinning technology at a specific voltage (12-20 kV) and a jet speed (0.1-1.0 mL / h), and the resulting film is collected to form a nanofiber film layer 4. The specific steps are as follows;

[0080] S31, nanofiber preparation;

[0081] S311, with polyvinyl alcohol (PVA) as the polymer basis, the concentration was set to 8wt% (weight percentage), dissolved in distilled water, and the electrospinning parameters were set to voltage 12-20 kV, injection speed 0.1-1.0 mL / h, which affects the production rate and diameter of the fiber, collection distance 10-20 cm, and ambient temperature 20-25°C;

[0082] S312, by adjusting the voltage and the jet speed to prepare the nanofiber layer, the diameter of the fiber can be controlled to be generally between 100 nanometers and several micrometers. Higher voltage and lower jet speed tend to produce finer fibers.

[0083] Among them, the placement density of the fibers can be controlled by adjusting the collection time.

[0084] Voltage, which is adjusted according to the specific conditions of the laboratory to form a stable spinneret. Jet speed, which affects the production rate and diameter of the fiber. Collection distance, which is the distance from the nozzle to the collector (usually a metal conductive plate or a rotating drum). Environmental conditions, humidity should be kept as low as possible to avoid too fast evaporation of the solvent.

[0085] S32, Preparation of composite materials:

[0086] S321, non-woven fabric is selected as the reinforcing substrate with a thickness of about 0.1-0.5 mm as the support layer. It should have sufficient mechanical strength and air permeability;

[0087] S322, uses environmentally friendly glue to connect the support layer and the nanofiber layer, the thickness is controlled at 0.01-0.05 mm, and is laid on the support layer in a grid or dot pattern, and then bonded to the nanofiber layer.

[0088] It is necessary to ensure that the adhesive does not severely block the nanofiber pores to maintain breathability.

[0089] S323, using a hot pressing device, the temperature is set between 120-150°C, the pressure is about 1-5MPa, and the time is 1-5 minutes, so that the support layer and the nanofiber layer are stably connected to form a nanofiber membrane layer 4.

[0090] The nanofiber layer preferably accounts for 10% to 30% of the thickness of the entire composite membrane, and the support layer usually accounts for 70% to 90% of the thickness of the entire composite structure.

[0091] After testing, the air permeability of nanofibers is 15-30 (mm / s).

[0092] In step S4, a hot melt adhesive 3 is applied to the waterproof layer 1 on any side of the surface fabric layer 2 by using a spot-drying or grid-coating technique, and the prepared nanofiber membrane layer 4 is bonded thereto. The specific steps are as follows;

[0093] S41, selecting a hot melt adhesive 3 suitable for the surface cloth material and the nanofiber membrane layer 4;

[0094] S42, applying the hot melt adhesive 3 to the surface fabric layer by using a dot-by-dot technique, wherein the dots of the adhesive may be circles, stars or other shapes, ensuring that the adhesive dots are evenly distributed to avoid aggregation.

[0095] Among them, the choice of hot melt adhesive 3 in S41, such as polyurethane hot melt adhesive 3, has excellent elasticity, wear resistance and strong bonding ability. It can also provide good water resistance and heat resistance, suitable for outdoor clothing and technical textiles.

[0096] Polyethylene hot melt adhesive 3, for general bonding needs, PE hot melt adhesive 3 provides good adhesion and sufficient strength, high cost-effectiveness. It is more suitable for occasions where the bonding strength requirements are not very high.

[0097] Polyamide hot melt adhesive 3 has good chemical resistance and strong adhesion, while maintaining a certain degree of flexibility and toughness, and is suitable for application environments that require oil resistance and chemical resistance.

[0098] Polyester hot melt adhesive 3, with excellent heat resistance and strong bonding ability, good aging resistance, suitable for applications requiring high heat resistance and long-term durability.

[0099] Ethylene-vinyl acetate copolymer hot melt adhesive 3 has good adhesion and flexibility. It is one of the most commonly used hot melt adhesives 3. It has a relatively low cost and is suitable for general bonding needs, especially in scenarios where cost control is relatively important.

[0100] In this embodiment, polyurethane hot melt adhesive 3 is selected for bonding the nanofiber membrane layer 4, because it provides good bonding performance, elasticity, and resistance to water and environmental influences, and is suitable for use in various environmental conditions.

[0101] The grid coating technology designs the density and line width of the grid according to the required bonding strength and air permeability. And ensure the continuity of the grid to avoid breakage or excessive accumulation. Check the surface of the grid after coating to ensure that no hot melt adhesive 3 overflows into the unwanted area.

[0102] In this embodiment, polyurethane hot melt adhesive 3 is selected. Using the dot coating technology, glue dots with a diameter of 1 mm are evenly distributed on the surface of the material, and the distance between dots is set to 5 mm, which ensures the air permeability and waterproofness of the fabric.

[0103] When applying the hot melt adhesive 3, control the temperature at 160°C and ensure uniform pressure and moderate speed.

[0104] The bonded fabric is passed through a hot pressing device and pressurized at 130°C and 2MPa for 3 minutes, ensuring that the nanofiber membrane layer 4 is firmly bonded to the nylon face cloth without destroying the fiber structure.

[0105] In step S5, the same on-demand or grid coating technology is used on one side of the moisture wicking base fabric layer, and the hot melt adhesive 3 is used again to bond the base fabric layer to the other side of the nanofiber membrane layer 4 to form an initial fabric. The specific steps are as follows:

[0106] S51, performing a moisture absorption and perspiration treatment on the base fabric to form a base fabric layer 5;

[0107] S511, select a special synthetic fiber with good moisture absorption and perspiration wicking performance, use four-channel fiber spinning technology to form a fiber with a porous structure to increase the surface area of ​​the fiber, thereby improving its ability to absorb and diffuse water molecules and enhance the fiber's moisture conduction and perspiration wicking performance. In this embodiment, the base fabric material is polyester, and modified polyester can be selected in particular.

[0108] S512, the key to improving wearing comfort in applications such as sportswear is to form fabrics using specific knitted or woven structures to enhance their breathability and ability to quickly evaporate water vapor. Three-dimensional structured fabrics are particularly good in this regard because they can form an effective microclimate between the skin and the fabric, accelerating the discharge and evaporation of sweat, thereby keeping the body dry and comfortable.

[0109] By adopting three-dimensional weaving technology, finished or semi-finished fabrics with complex shapes and structures can be formed in a single weaving process. This technology can seamlessly integrate different functional areas (breathability, elasticity, protection areas, etc.).

[0110] S513 uses moisture wicking finishing agents through impregnation, baking, antibacterial and other processes to form a complete base fabric layer.

[0111] This treatment step can improve the hydrophilicity of the fiber surface and promote the rapid absorption and external discharge of water.

[0112] In this embodiment, the moisture absorption and perspiration removal finishing agent adopts a cross-linked polymer, specifically a silane cross-linking agent.

[0113] The textile is immersed in a solution containing a moisture wicking finishing agent for 15-30 minutes, and the excess immersion liquid in the textile is squeezed out by a rolling wheel to ensure that the textile is evenly moistened, and then enters the baking stage. The baking temperature is set between 130°C and 160°C, and the time is about 1 to 3 minutes. It should be noted that too high a temperature or too long a time may damage the textile or affect the natural properties of the fiber. In this embodiment, the baking temperature is specifically set to 135°C and the time is 2 minutes.

[0114] At the same time, in order to improve wearing comfort, the base fabric is often treated with antibacterial and anti-odor treatment while being moisture-absorbing and perspiration-wicking to reduce the odor produced by the decomposition of sweat.

[0115] Moisture wicking backing fabric treatment technology is the result of continuous innovation in the textile field. The above steps and methods can be adjusted and optimized according to specific materials, required functional performance and cost factors.

[0116] Among them, the base fabric is subjected to moisture absorption and perspiration treatment, and an adhesive that is compatible with the treatment agent and does not affect the performance of the base fabric needs to be selected.

[0117] S52, selecting glue dots of appropriate size and spacing, distributing the glue dots in a grid or dot pattern on the base fabric layer, and bonding it to the other side of the nanofiber membrane layer 4 to form an initial fabric.

[0118] The glue dots are 1-2.5mm in diameter and 0.1-0.3mm in height, which improves the flexibility and breathability of the fabric, which is especially important for pants, in order to allow more freedom of movement while maintaining adhesion. In addition to reducing possible friction or irritation when wearing, the glue dots are spaced 6-12mm apart to further improve breathability and flexibility. The larger spacing helps maintain the natural stretch of the fabric and adapts to the bending and stretching of the legs during daily wear and activities.

[0119] Through the above steps, the moisture-wicking base fabric layer is bonded to the other side of the nanofiber membrane layer 4, and the hot melt adhesive 3 is applied again using the spot or grid coating technology. The key to optimizing this step is to ensure that the layers of material can be evenly and firmly bonded together while maintaining the breathability and moisture-wicking function of the material.

[0120] In step S6, a heat press is used to heat and press for 1-3 seconds at a suitable temperature of 120-160° C. and a pressure of 200-500 kPa to accurately press the layers of material to which the hot melt adhesive 3 has been applied, so as to ensure uniform adhesion between the layers of material and overall performance;

[0121] Among them, in the process of bonding hot melt adhesive 3 materials using a heat press, choosing the appropriate temperature, pressure and time is crucial to ensure high-quality bonding results.

[0122] The temperature is usually within the range of 120-160° C., which is sufficient for most hot melt adhesives 3 to reach their activation point and become highly adhesive, but not sufficient to damage fabrics or other materials to be bonded.

[0123] In this embodiment, 135° C. is selected to ensure that the hot melt adhesive 3 is fully melted and penetrates into the fabric fibers to form a strong bond, and to avoid material damage that may be caused by high temperature, such as thermal degradation, discoloration, melting or strength reduction.

[0124] The pressure is 200-500 kPa, which can ensure that the hot melt adhesive 3 is evenly distributed on the surface and inside of the material without causing excessive adhesive seepage or damaging the material.

[0125] In this embodiment, the pressure of 320 kPa is used to evenly disperse the hot melt adhesive 3 to increase the contact area and improve the bonding strength. At the same time, moderate pressure helps to maintain the original structure and softness of the material while ensuring the durability of the bonding.

[0126] The time is 1-3 seconds. Through short-term heat pressing, bonding can be achieved quickly and damage to the material that may be caused by long-term heat treatment can be avoided.

[0127] In this embodiment, the time is selected to be 2 seconds, which is highly efficient, can speed up the processing speed of the production line, and is suitable for industrial production. It reduces energy waste and potential material loss caused by long-term heating, limits the high temperature action time, and reduces the risk of thermal degradation.

[0128] By selecting special synthetic fibers such as polyester or modified polyester with good moisture absorption and perspiration wicking properties, and applying four-channel fiber spinning technology, the base fabric layer increases the surface area of ​​the fiber while optimizing its ability to absorb and diffuse water molecules. This structure is not only conducive to the rapid absorption and discharge of moisture, but also means that after the base fabric layer absorbs moisture emitted by the body, it can release heat through evaporation, thereby achieving a certain temperature regulation effect.

[0129] By adopting a specific knitted or woven structure to enhance breathability and rapid evaporation of water vapor, especially by using three-dimensional structural fabrics, an effective microclimate environment can be formed between the skin and the fabric. This environment is conducive to accelerating the discharge and evaporation of sweat. At the same time, through proper thermal energy management, such as reflecting or absorbing external light energy, the wearer's body temperature comfort can be further adjusted.

[0130] Moisture wicking finishing agents such as silane crosslinking agents are used to increase the hydrophilicity of the fiber surface to promote the rapid absorption and discharge of moisture. When these treated fabrics are exposed to light conditions, the absorbed moisture can provide a certain cooling effect through the evaporation and heat absorption process, and it is possible to use the optical properties of the material (such as reflectivity and absorptivity) to manage external light and heat to a certain extent.

[0131] By selecting glue dots of appropriate size and spacing and using hot melt adhesive 3 to form a precise bond between the base fabric layer and the nanofiber membrane layer 4, a strong connection between the two is ensured while maintaining the breathability and flexibility of the material.

[0132] Through the above-mentioned technologies and treatments, the base fabric layer can not only provide good moisture absorption and perspiration management and breathability, but also realize light heat storage and heat management for the wearer, thereby improving the wearing comfort and the ability to adapt to different environmental conditions.

[0133] Example 2

[0134] like Figure 5 As shown, this embodiment is basically the same as embodiment 1, except that a ventilation portion 9 is provided near the upper portion of the trouser leg, and the ventilation portion 9 includes a first cloth piece 91 sewn on the front trouser piece 6 and a second cloth piece 92 sewn on the back trouser piece 7, the first cloth piece 91 and the second cloth piece 92 are sewn and fixed at their edges, and the first cloth piece 91 and the second cloth piece 92 are made of breathable membrane cloth.

[0135] By specially arranging the air permeable part 9 at the upper part of the trouser legs and using the breathable membrane fabric, the ventilation function of the whole trousers can be effectively enhanced. The upper part of the leg is where the airflow can easily reach during activities. This arrangement can better utilize the natural airflow, help the body heat and moisture to be discharged through the fabric, and maintain the comfort of the wearer.

[0136] The thigh and buttocks areas are often the most prone to sweating during activities. The use of breathable 9 design, especially the use of breathable membrane fabric in these areas, can significantly reduce the feeling of sweat accumulation and reduce the discomfort of clammy, thus optimizing the wearing experience.

[0137] In an environment with changing temperatures, maintaining a balance in body temperature is the key to comfortable wearing. The design of the ventilated portion 9, especially the location with better ventilating performance, can discharge excess heat when needed, and can also block the external cold air from directly contacting the skin in a colder environment, helping to maintain the body's temperature balance.

[0138] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0139] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0140] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pair of casual pants with a breathable membrane, characterized in that: include: A group of symmetrically placed front trouser pieces and rear trouser pieces, each of the front trouser pieces is placed opposite to the rear trouser pieces and is fixed by edge sewing to form a trouser leg portion; A waist piece is arranged around the trouser legs, and the waist piece is sewn and fixed to the front trouser piece and the upper part of the back trouser piece; The trouser legs are provided with a breathable membrane cloth piece; The breathable membrane fabric sheet comprises a surface fabric layer facing outward, a bottom fabric layer facing inward, and a nanofiber membrane layer arranged between the surface fabric layer and the bottom fabric layer.

2. The casual pants with a breathable film according to claim 1, characterized in that: Both sides of the surface fabric layer are provided with waterproof layers.

3. The casual pants with a breathable film according to claim 2, characterized in that: The waterproof layer on the side of the surface fabric layer facing the nanofiber membrane layer is connected to the nano-membrane layer through a glue layer.

4. The casual pants with a breathable film according to claim 3, characterized in that: The nano-friction layer is connected to the base fabric layer through a glue layer.

5. The casual pants with a breathable film according to claim 4, characterized in that: The surface fabric layer is a polyester-ammonia four-sided stretch fabric layer.

6. The casual pants with a breathable film according to claim 5, characterized in that: The bottom fabric layer is made of special fiber fabric.

7. The casual pants with a breathable film according to claim 6, characterized in that: The nanofiber membrane layer is made of polyvinyl alcohol material.

8. The casual pants with a breathable film according to claim 3, characterized in that: The glue layer is made of polyurethane hot melt adhesive.

9. The casual pants with a breathable film according to claim 1, characterized in that: A ventilation portion is provided at the upper part of the trouser leg, and the ventilation portion includes a first cloth piece sewn on the front trouser piece and a second cloth piece sewn on the back trouser piece. The first cloth piece and the second cloth piece are sewn and fixed at their edges, and the first cloth piece and the second cloth piece are made of breathable membrane cloth pieces.

10. The casual pants with a breathable film according to claim 1, characterized in that: The front trouser piece and the back trouser piece are both made of breathable membrane cloth pieces.

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