Preparation process of massage underpants for men and product thereof

Abstract

The invention relates to the technical field of processing of male massage underpants, in particular to a preparation process of male massage underpants and a product thereof, and the preparation process comprises the following preparation steps: S1, cotton fibers, natural silk and spandex fibers are subjected to cotton opening, drawing, roving and spinning to obtain mixed fibers; s2, weaving the mixed fibers to obtain an underpants body; s3, dispensing glue on the forwards protruding crotch of the underpants body, and performing high-temperature mold pressing to form convex points for massaging the hand feeling; s4, printing ink containing negative ions on the waist part and the crotch part protruding forwards of the underpants body. The cotton fibers, the natural silk fibers and the spandex fibers are blended to form the mixed fibers, then the mixed fibers are woven to obtain the underpants body, compared with a traditional complex process of embedding magnets or jades into fabric, the production process is greatly simplified, the mode of forming the protruding points through high-temperature mold pressing is adopted, and the shapes, sizes and distribution of the protruding points can be flexibly adjusted according to design requirements; and the requirements of different consumers on massage effects and styles can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of men's massage underwear processing, more particularly to a preparation process of men's massage underwear and a product thereof. BACKGROUND

[0002] At present, men generally have bad living habits such as sitting at the office for a long time, irregular work and rest, and lack of exercise, which makes male diseases such as prostatitis, impotence, and premature ejaculation show a high incidence and a trend of gradual youth. Men's massage underwear can continuously stimulate related parts through magnetic therapy massage, jade health care and other functions, promote blood circulation, dredge meridians, improve microcirculation, and help prevent and relieve these diseases. Men's massage underwear integrates health care functions into daily wear, without the need for special health care, just by wearing the underwear, the body can be massaged and conditioned in daily activities, so that men can more easily manage their health.

[0003] Traditional men's massage underwear, although taking advantage of the magnetic field effect of magnetite or the warm and moist properties of jade, to a certain extent, realizes the health care function of the human body, and plays a positive role in improving microcirculation, dredging meridians, and relieving male urogenital system diseases. However, the magnetite and jade massage underwear has exposed many limitations in practical application: the production process is complex, and the magnetite or jade needs to be accurately embedded in the underwear fabric, which not only increases the production cost, but also requires special caution when cleaning and maintaining the product, otherwise the built-in material is easy to be damaged, thereby affecting the service life and health care effect of the product; at the same time, the hardness of magnetite and jade is relatively high, and some consumers reflect that the wearing comfort is not good, which cannot meet the comfort demand of daily wear.

[0004] In order to solve the above problems, massage particle underwear emerges as the times require. By using massage particles made of silica gel, plastic and other materials, mass production through mold forming or injection molding and other mature processes greatly simplifies the production process, reduces the cost, and improves the plasticity and diversity of the product. Massage particles can directly stimulate acupuncture points and muscles, and their soft material can fit the body curve, ensuring the massage effect and considering the comfort of wearing. However, through in-depth market research and user experience analysis, it is found that in the actual use process of massage particles, if the massage particles are too hard, they will cause great pressure on the skin, and long-term wearing will easily cause local skin or soft tissue damage, such as indentation, swelling, pain and other symptoms, which is particularly prominent for male users with sensitive skin; on the contrary, if the hardness of the massage particles is insufficient, the effective massage stimulation intensity cannot be achieved, thereby weakening the health care function of the product, making it become ordinary underwear, and failing to meet the expectations of consumers for massage underwear to improve health status.

[0005] However, in actual use, it is found that if the massage particles are too hard, they will be uncomfortable to wear, and long-term wearing may cause local skin or soft tissue damage, such as indentation, redness, pain, etc., especially for men with sensitive skin; if the hardness is not enough, the massage effect will not be achieved.

[0006] In view of the deficiencies of existing men's massage underwear in production process, health care effect, wearing comfort and user experience, it is necessary to develop a new type of men's massage underwear. The underwear aims to optimize the design and material of the massage particles, ensure the massage effect while improving the wearing comfort, so as to better meet the dual needs of men for daily health care and comfortable wearing. SUMMARY

[0007] In order to solve the problem that the existing men's massage underwear has deficiencies in production process, health care effect, wearing comfort and user experience, it is necessary to develop a new type of men's massage underwear. The underwear aims to optimize the design and material of the massage particles, ensure the massage effect while improving the wearing comfort, so as to better meet the dual needs of men for daily health care and comfortable wearing. The present application provides a preparation process of men's massage underwear and its product.

[0008] In the first aspect, the present application provides a preparation process of men's massage underwear, which adopts the following technical solution: A preparation process of men's massage underwear, comprising the following preparation steps: S1, cotton fiber, tussah silk and spandex fiber are opened, drawn, roved and spun to obtain a mixed fiber; S2, the mixed fiber is knitted to obtain an underwear body; S3, glue is applied to the crotch part of the underwear body, and then high-temperature molding is performed to form massage-feeling protrusions; S4, negative ion ink is printed on the waist part and the crotch part of the underwear body.

[0009] By adopting the above technical solution, the cotton fiber, tussah silk and spandex fiber are blended to form a mixed fiber, and then the underwear body is obtained by knitting. Compared with the complex process of embedding magnet or jade into fabric, the production process is greatly simplified. There is no need for precise embedding operation of magnet or jade, which reduces the complex steps in the production link and reduces the production cost. By high-temperature molding to form protrusions, the shape, size and distribution of the protrusions can be flexibly adjusted according to design requirements, so that the product has more plasticity and diversity in modeling and functional design, which can meet the needs of different consumers for massage effect and style.

[0010] The convex points formed by high-temperature molding after spot gluing in the crotch part can directly physically stimulate the relevant acupoints and muscles, playing a role similar to massage. Compared with traditional magnetic or jade massage underpants, this convex point massage method is more direct and has more obvious massage effect. The convex points are formed by high-temperature molding on the underpants body, and their material is consistent with the underpants itself, without the problems of being too hard or too soft. They can conform to the body curve and will not cause great pressure on the skin or cause local skin or soft tissue damage such as indentation, redness, pain, etc. caused by the hardness of the massage particles. At the same time, it also avoids the problem that the massage effect is not achieved due to insufficient hardness, achieving a good balance between massage effect and wearing comfort.

[0011] The underpants are mainly made of cotton fiber, tussah silk and spandex fiber. The cotton fiber has good air permeability and moisture absorption, keeping the crotch part dry and comfortable. The blending of cotton fiber and tussah silk makes the underpants have good air permeability, keeping the wearing part dry, reducing moisture and heat caused by long sitting, and reducing the risk of skin infection and other skin problems. The addition of spandex fiber enhances the elasticity of the underpants, making them better conform to the body curve and wear more comfortably and freely, without discomfort such as tightness or marks caused by body movement. At the same time, the strength of the blended cotton fiber and tussah silk is high, combined with the elasticity of the spandex fiber, the underpants can maintain shape and performance during daily wear and washing, and are not prone to deformation, wear or relaxation, prolonging the service life.

[0012] Preferably, the heating temperature of high-temperature molding in step S3 is 150-170℃, the heating time of high-temperature molding is 5-9s, and the pressure of high-temperature molding is 3-5kg / m 2 .

[0013] By adopting the above technical scheme, by controlling the heating temperature, time and pressure, multiple technical effects are achieved. The heating temperature of 150-170℃ makes the glue fully melt and combine well with the fabric, ensuring that the convex points are firmly bonded, and at the same time the fabric is moderately deformed, which is beneficial to the precise forming of the convex points. The heating time of 5-9s ensures that the glue is moderately solidified and the convex points are clearly formed, avoiding damage to the performance of the fabric. The pressure of 3-5kg / m 2 makes the mold fully contact with the fabric, the convex points are formed regularly and have appropriate height and hardness, and the massage effect on the skin is good, and at the same time the convex points are stably attached to the crotch part of the underpants.

[0014] Preferably, the spun yarn is pretreated, and the steps are as follows: The spun yarn is soaked in a softener for 2-3 hours, taken out and dried to obtain the treated spun yarn, wherein the softener is obtained by ultrasonic mixing 1,4-dioxane, grape seed oil, dodecyl mercaptan, (3-isocyanate propyl) trimethoxysilane, 2-dimethoxy-2-phenyl phenylacetone and solvent according to the mass ratio (4-5) : (2-6) : (4-6) : (1-3) : (2-4) : 100.

[0015] The softener is obtained by ultrasonic mixing 1,4-dioxane, grape seed oil and other components, which can penetrate into the fiber interior, destroy the intermolecular force and make the fiber molecular chain segment more easily slide, greatly improving the softness of the spun yarn, reducing the wearing friction feeling, and enhancing the skin friendliness. At the same time, the components such as (3-isocyanate propyl) trimethoxysilane form a protective film on the fiber surface, enhance the binding force between fibers, improve the fabric strength and wear resistance, and prolong the service life of the underpants. The lubricity of grape seed oil improves the elasticity and flexibility of the fiber, so that the underpants still maintain good shape after being worn and washed for many times.

[0016] Preferably, the glue is prepared by the following method: (1) According to weight parts, 40-60 parts of silicone modified polyurethane emulsion, 5-10 parts of EVA copolymer emulsion, 10-25 parts of negative ion powder, 0.1-1 parts of crosslinking agent, 1-2 parts of dispersing agent, 0.5-1.5 parts of penetrating agent and 50-70 parts of water are uniformly stirred to obtain a negative ion emulsion; (2) The negative ion emulsion is mixed with 3-5 parts of tackifying resin by weight to obtain the glue.

[0017] By adopting the above technical scheme, the silicone modified polyurethane emulsion as the basic component gives the glue good flexibility and viscosity, which can closely adhere to the underpants fabric and ensure that the protruding points are firmly attached. At the same time, the EVA copolymer emulsion further improves the viscosity and flexibility, so that the glue can adapt to the stretching and deformation of the underpants and prevent the protruding points from falling off. The addition of tackifying resin further enhances the viscosity of the glue, so that it can better adhere to the underpants fabric. The silicone modified polyurethane emulsion itself has good flexibility, and the addition of EVA copolymer emulsion further improves the flexibility and impact resistance of the glue, so that the protruding points are not easy to fall off or be damaged due to external force during use. The use of crosslinking agent can form a three-dimensional network structure after the glue is cured, improve the water resistance and friction resistance of the glue, and ensure that the protruding points can maintain good adhesion after being washed and rubbed many times.

[0018] At the same time, the mutual cooperation of each component enables the prepared glue to form protruding points with sufficient hardness and flexibility, avoiding the problems of too hard or too soft protruding points Preferably, the silicone modified polyurethane emulsion is prepared by the following method: (1) oligomer polyol and hydroxyl silicone oil is dehydrated at 100-120℃ for 1-2h, then cooled to 50-60℃, under nitrogen protection, add diisocyanate and catalyst, reaction at 60℃-75℃ for 2-3h, get polyurethane prepolymer; (2) polyurethane prepolymer is cooled to 30-40℃, add hydrophilic chain extender, reaction at 50-60℃ for 3-4h, then adjust pH to 5-7 with acid, add organic solvent, then add water for high speed emulsification, remove organic solvent under vacuum, get silicone modified polyurethane emulsion.

[0019] Preferably, the weight parts of raw materials used in the preparation of silicone modified polyurethane emulsion are as follows: Oligomer polyol 40-50 parts Hydroxyl silicone oil 8-12 parts Diisocyanate 15-20 parts Catalyst 0.1-0.2 parts Hydrophilic chain extender 3-5 parts Acid appropriate amount Organic solvent 15-20 parts Water 15-20 parts.

[0020] By using the above technical scheme, the introduction of silicone makes the polyurethane molecular chain segment introduce siloxane bond, which has good flexibility, so that the film formed by the emulsion has excellent flexibility and elasticity. When used for spot coating glue on the crotch part of the underpants and molding the convex points, the convex points can deform flexibly with the body curve, fit the skin, avoid damage to the skin caused by too high hardness, and improve the comfort of wearing. At the same time, in the molding process, the emulsion can be more evenly distributed on the surface of the underpants fabric, and tightly combined with the fabric, so that the convex points and the whole underpants fit better, and the wearing is more comfortable and natural.

[0021] Preferably, the negative ion containing ink is prepared by the following method: According to the weight parts, mix uniformly waterborne polyurethane emulsion 60-70 parts, deionized water 15-25 parts, pigment 2-5 parts, negative ion powder 5-10 parts, adhesion promoter 1-2 parts, thickening agent 1-2 parts, defoaming agent 0.5-1 parts, wetting agent 0.5-1 parts, get negative ion containing ink.

[0022] By adopting the technical scheme, the oligomer polyol reacts with the diisocyanate to form a polyurethane prepolymer, which has strong adhesion and can firmly adhere the bumps to the crotch of the underpants. Meanwhile, the introduction of the hydroxyl silicone oil enhances the flexibility and reduces the brittleness, so that the bumps are not easy to fall off or break in daily wear due to external force. The hydroxyl silicone oil gives the emulsion good flexibility and prevents the bumps from being too hard to cause damage to the skin. The reaction of the prepolymer and the hydrophilic chain extender further adjusts the balance between the hardness and flexibility of the emulsion, so that the bumps can provide effective massage stimulation without being too hard or too soft to affect the use effect.

[0023] Preferably, the weight ratio of the cotton fiber, the tussah silk and the spandex fiber is (4-8):(2-3):0.5.

[0024] By adopting the technical scheme, the cotton fiber accounts for the highest proportion, providing the softness and moisture absorption of the underpants to ensure dry and comfortable wear; the addition of tussah silk makes the underpants more smooth and delicate, with a more silky touch, improving the overall comfort; a small amount of spandex fiber gives the underpants elasticity, making them fit the body curve and be more comfortable to wear. The porous structure of cotton fiber and tussah silk is beneficial to air circulation, and the combination of the two makes the underpants have good air permeability, which can timely discharge sweat and moisture on the skin surface, reduce bacterial growth and reduce the risk of skin infection. The elastic properties of spandex fiber make the underpants better fit the body, maintaining comfort even during physical activity, and the moderate spandex content avoids the underpants from being too tight due to excessive elasticity or sagging due to insufficient elasticity.

[0025] Meanwhile, the three are mixed according to a certain weight ratio to further ensure that the bumps can be stably connected with the fabric and are not easy to fall off during use.

[0026] In the second aspect, the application provides a male massage underpants, which adopts the following technical scheme: A male massage underpants comprises an underpants body, a crotch part protruding forward is arranged on the front of the underpants body, the crotch part comprises an outer layer and a separation layer from outside to inside, one side of the outer layer facing the separation layer is provided with a plurality of bumps, and the bumps are arranged in an X shape.

[0027] Preferably, the surface of the outer layer is provided with a negative ion ink printing layer.

[0028] By adopting the technical scheme, the bumps on the outer layer of the crotch part are arranged in an X shape, which can regularly stimulate the acupoints and muscles of the male private parts, promote local blood circulation and dredge the meridians, and effectively relieve fatigue and discomfort.

[0029] In summary, the application has the following beneficial effects: 1. Simplify the production process and reduce costs: The underwear body is woven from a blend of cotton fiber, silk, and spandex fiber, avoiding the complex process of embedding magnets or jade into the fabric, thus reducing complicated steps in the production process.

[0030] 2. Excellent massage effect and high comfort: After applying glue to the crotch area, the raised dots are formed by high temperature molding. The material is the same as that of underwear, so there is no problem of being too hard or too soft. It can conform to the body's curves and directly stimulate acupoints and muscles, achieving a balance between massage effect and wearing comfort.

[0031] 3. Excellent breathability and moisture absorption for greater comfort: Cotton fibers provide good breathability and moisture absorption, and blending with silk further enhances breathability, keeping the crotch area dry and reducing the risk of skin infection.

[0032] 4. Excellent elasticity and body fit: Spandex fibers enhance the elasticity of the underwear, allowing it to fit the body's curves and move freely without tightness or marks.

[0033] 5. High durability: The blend of cotton fiber and silkworm silk has high strength, combined with the elasticity of spandex, so the underwear can maintain its shape and performance during wear and washing, and is not easy to deform, wear and loosen, thus extending its service life.

[0034] 6. It has health benefits. Printing negative ion-containing ink on the waist and groin area can release negative ions, which are beneficial to human health. Attached Figure Description

[0035] Figure 1 A schematic diagram of the structure of a men's massage underwear in Example 1; Figure 2 A schematic diagram of the layered structure of the crotch area of ​​a men's massage underwear in Example 1; Reference numerals: 1. Underwear body; 2. Crotch area; 3. Raised dots; 4. Insulating layer; 5. Outer layer; 6. Negative ion ink printing layer. Detailed Implementation

[0036] Preparation Example Preparation Example 1 An organosilicon-modified polyurethane emulsion is prepared by the following method: (1) Dehydrate 400g of oligomeric polyol and 80g of hydroxyl silicone oil at 100℃ for 1h, then cool down to 50℃, add 150g of diisocyanate (toluene diisocyanate) and 1g of catalyst (dibutyltin dilaurate) under nitrogen protection, and react at 60℃ for 2h to obtain polyurethane prepolymer. (2) The polyurethane prepolymer is cooled to 30°C, 30 g of hydrophilic chain extender (dimethylol propionic acid) is added, and reacted at 50°C for 3 h, then the pH value is adjusted to 5 with 10 g of acid (acetic acid), 150 g of organic solvent (acetone) is added, and then 150 g of water is added for high-speed emulsification, and the organic solvent is removed under vacuum to obtain a silicone-modified polyurethane emulsion.

[0037] The oligomer polyol is polyethylene glycol adipate diol with a molecular weight of 2000.

[0038] The hydroxyl silicone oil is purchased from Jinan Xinglongda Chemical Co., Ltd., and the item number is 5876856.

[0039] Preparation Example 2-3 differs from Preparation Example 1 in that the types, amounts, and parameters of the raw materials for preparing the silicone-modified polyurethane emulsion are different, and the specific differences are shown in Table 1: Table 1 Types, amounts, and parameters of raw materials for preparing silicone-modified polyurethane emulsion in Preparation Examples 1-3 Preparation Example 4 is a silicone-modified polyurethane emulsion, and the difference between this preparation example and Preparation Example 1 is that the hydroxyl silicone oil is replaced with an equal amount of polyether polysiloxane diol.

[0040] The polyether polysiloxane diol has a hydroxyl value of 50 mgKOH / g and Mn = 4600.

[0041] Preparation Example 1a A glue is prepared by the following method: (1) The silicone-modified polyurethane emulsion 400 g (from Preparation Example 1), EVA copolymer emulsion 50 g, anion powder 100 g, crosslinking agent 1 g (ethylene glycol diglycidyl ether), dispersing agent 10 g (sodium dodecyl benzene sulfonate), penetrating agent 5 g (penetrating agent OE-35), and water 500 g are stirred uniformly to obtain an anion emulsion; (2) The anion emulsion and tackifying resin 30 g (hydrogenated rosin) are mixed to obtain the glue.

[0042] The EVA copolymer emulsion is purchased from Dalian Chemical, and the model number is DA-102H.

[0043] Preparation Example 2a-3a differs from Preparation Example 1a in that the types, amounts, and parameters of the raw materials for preparing the glue are different, and the specific differences are shown in Table 1: Table 1 Types, amounts, and parameters of raw materials for preparing glue in Preparation Examples 1a-3a Preparation Example 4a An organic silicon modified polyurethane emulsion, the difference between the present preparation example and Preparation Example 1a is that the organic silicon modified polyurethane emulsion is from Preparation Example 4a.

[0044] Preparation Example 5 A negative ion-containing ink is prepared by the following method: Mixing the water-based polyurethane emulsion 600g, deionized water 150g, pigment 20g, negative ion powder 50g, adhesion promoter 10g (KH-550), thickening agent 10g (octadecyl dimethyl tertiary amine), defoaming agent 5g (GPE type polyether modified polydimethylsiloxane defoaming agent), wetting agent 5g (fatty alcohol polyoxyethylene ether) uniformly to obtain a negative ion-containing ink.

[0045] The water-based polyurethane emulsion is purchased from Shenzhen Jitian Chemical Co., Ltd., and the model is 1624.

[0046] Preparation Examples 6-7 are different from Preparation Example 5 in that the types, amounts and parameters of the raw materials for preparing the negative ion-containing ink are different, and the specific differences are shown in Table 3: Table 3 Types, amounts and parameters of raw materials for preparing negative ion-containing ink in Preparation Examples 5-7 Example

[0047] Example 1 A men's massage underwear, as shown in Figure 1 and Figure 2 , comprising an underwear body 1, a crotch part 2 protruding forward is arranged on the front of the underwear body 1, the crotch part 2 comprises an outer layer 5 and a separation layer 4 from outside to inside, a plurality of protrusions 3 are arranged on the side of the outer layer 5 facing the separation layer 4, the protrusions are arranged in an X shape, a negative ion ink printing layer 6 is printed on the surface of the outer layer 5, and a negative ion ink printing layer 6 is printed on the surface of the waist part of the underwear body 1.

[0048] A men's massage underwear is prepared by the following method: S1, cotton fibers, tussah silk and spandex fibers are opened, drawn, roved and spun to obtain a mixed fiber; the weight ratio of the cotton fibers, the tussah silk and the spandex fibers is 4:2:0.5; S2, the mixed fiber is knitted to obtain an underwear body; S3, glue (from Preparation Example 1a) is applied to the crotch part of the underwear body which protrudes forward, and then high-temperature molding is performed to obtain protrusions with a massage feeling; S4, a negative ion-containing ink (from Preparation Example 4) is printed on the waist part and the crotch part which protrudes forward of the underwear body.

[0049] Example 2-3 differs from Example 1 in that the types, amounts and parameters of the raw materials used for preparation are different, and the specific differences are shown in Table 4: Table 4 Types, amounts and parameters of raw materials used for preparation of men's massage briefs Example 4 A men's massage brief, this example differs from Example 1 in that the glue comes from Preparation Example 4a.

[0050] Example 5 A men's massage brief, this example differs from Example 1 in that the spun yarn is pretreated, and the steps are as follows: the spun yarn is soaked in a softening agent for 2-3 h, taken out and dried to obtain treated spun yarn, and the softening agent is obtained by ultrasonic mixing 1,4-dioxane, grape seed oil, dodecyl mercaptan, (3-isocyanate propyl) trimethoxysilane, 2-dimethoxy-2-phenyl phenylacetone and solvent in a mass ratio of 4:2:4:1:2:100.

[0051] Example 6 A men's massage brief, this example differs from Example 1 in that the spun yarn is pretreated, and the steps are as follows: the spun yarn is soaked in a softening agent for 2-3 h, taken out and dried to obtain treated spun yarn, and the softening agent is obtained by ultrasonic mixing 1,4-dioxane, grape seed oil, dodecyl mercaptan, (3-isocyanate propyl) trimethoxysilane, 2-dimethoxy-2-phenyl phenylacetone and solvent in a mass ratio of 5:6:6:3:4:100.

[0052] Comparative Example Comparative Example 1 A men's massage brief, this comparative example differs from Example 1 in that the cotton fiber and tussah silk are opened, drawn, roved and spun in S1 to obtain a mixed fiber; The weight ratio of cotton fiber and tussah silk, spandex fiber is 4:2.

[0053] Comparative Example 2 A men's massage brief, this comparative example differs from Example 1 in that the crotch part of the brief body protruding forward is not glued, and the massage feeling protruding points are pressed out at high temperature.

[0054] Comparative Example 3 A men's massage brief, this comparative example differs from Example 1 in that silicone is used instead of glue.

[0055] Silicone was purchased from Dongguan Jiashunmei Silicone Co., Ltd., model JSM-0560.

[0056] Detection method / test method Wash-resistant test: Set the washing program to the standard cotton and linen washing mode, control the water temperature at 40℃±2℃, set the washing time to 15 minutes, spin speed to 800 rpm, and select the medium water level. The drying program adopts the tumble dry mode, the temperature is set to medium, and the drying time is set to 1 hour. The men's massage underwear of examples 1-6 and comparative examples 1-3 were tested for 50 repeated washing and drying cycles, and the underwear was completely dried after each washing, and the next washing was carried out to simulate the use and washing of the underwear for a long time, and whether the convex points fell off was observed.

[0057] Comfort test: 30 male volunteers with the same body type were recruited, aged 20-50 years old, during the test period, the volunteers were required to wear underwear with convex points for 2 days of daily activities, including 8 hours of long sitting and 30 minutes of slow running every day, and the number of people who thought the convex point hardness was moderate and the number of people who wore it close-fitting without tightness were recorded.

[0058] Air permeability: tested according to national standard GB / T 5468-1997.

[0059] Moisture absorption: according to national standard GB / T 12704.1-2009 "Textile fabric moisture absorption test method part 1: immersion method". The experimental data are shown in Table 5: Table 5 Experimental data of examples 1-6 and comparative examples 1-3 The men's massage underwear of examples 1-6 performed well in wash resistance, comfort, air permeability and moisture absorption, especially the wash resistance and comfort test results were outstanding, indicating that the glue and high-temperature molding process parameters used were reasonable, which could form a good stable connection between the convex points and the underwear body, the glue had strong adhesion, and could still maintain the firm combination of the convex points and the underwear under the condition of repeated washing, and the underwear material and the fine yarn pretreatment method made the convex point hardness moderate and the wearing close-fitting without tightness. Comparative examples 1-3 had obvious deficiencies in wash resistance and comfort due to the lack of raw materials or process. At the same time, the air permeability and moisture absorption in this application were excellent, which could meet the daily wearing requirements for air permeability.

[0060] The specific embodiments are only an explanation of the application, which is not a limitation of the application, and those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, but as long as it is within the scope of the claims of the application, it is protected by the patent law.

Claims

1. A manufacturing process for men's massage underwear, characterized in that, The preparation steps include the following: S1. Cotton fiber, silk, and spandex fiber are processed by opening, drawing, roving, and spinning to obtain mixed fiber; S2. The mixed fibers are woven together to obtain the underwear body; S3. Apply glue to the crotch area of ​​the underwear body that protrudes forward, and then use high temperature molding to create raised dots with a massage feel. S4. Then, print negative ion ink on the waistband and the forward-protruding crotch area of ​​the underwear.

2. The manufacturing process of men's massage underwear according to claim 1, characterized in that: In step S3, the heating temperature for high-temperature molding is 150-170℃, the heating time is 5-9 seconds, and the pressure is 3-5 kg / m³. 2 .

3. The manufacturing process of men's massage underwear according to claim 2, characterized in that, The pretreatment steps for fine yarn are as follows: The fine yarn is soaked in a softener for 2-3 hours, then removed and dried to obtain the treated fine yarn. The softener is obtained by ultrasonically mixing 1,4-dioxane, grape seed oil, dodecyl mercaptan, (3-propyl isocyanate)trimethoxysilane, 2-dimethoxy-2-phenylacetophenone and solvent in a mass ratio of (4-5):(2-6):(4-6):(1-3):(2-4):

100.

4. The manufacturing process of men's massage underwear according to claim 1, characterized in that, The adhesive is prepared by the following method: (1) According to the weight parts, 40-60 parts of silicone-modified polyurethane emulsion, 5-10 parts of EVA copolymer emulsion, 10-25 parts of negative ion powder, 0.1-1 parts of crosslinking agent, 1-2 parts of dispersant, 0.5-1.5 parts of penetrant and 50-70 parts of water are stirred evenly to obtain negative ion emulsion; (2) Mix the negative ion emulsion with 3-5 parts by weight of tackifying resin to obtain glue.

5. The manufacturing process of men's massage underwear according to claim 4, characterized in that, The organosilicon-modified polyurethane emulsion was prepared by the following method: (1) Dehydrate oligomeric polyol and hydroxyl silicone oil at 100-120℃ for 1-2h, then cool down to 50-60℃, add diisocyanate and catalyst under nitrogen protection, and react at 60℃-75℃ for 2-3h to obtain polyurethane prepolymer. (2) Cool the polyurethane prepolymer to 30-40℃, add a hydrophilic chain extender, react at 50-60℃ for 3-4h, then adjust the pH value to 5-7 with acid, add an organic solvent, add water for high-speed emulsification, remove the organic solvent under vacuum, and obtain silicone-modified polyurethane emulsion.

6. The manufacturing process of men's massage underwear according to claim 4, characterized in that, The raw materials used to prepare the silicone-modified polyurethane emulsion are as follows by weight: 40-50 parts of oligomeric polyols 8-12 parts of hydroxyl silicone oil 15-20 parts of diisocyanate Catalyst 0.1-0.2 parts 3-5 parts of hydrophilic chain extender Acid in appropriate amount 15-20 parts organic solvent 15-20 parts water.

7. The manufacturing process of men's massage underwear according to claim 4, characterized in that, The negative ion-containing ink is prepared by the following method: According to medium weight, 60-70 parts of waterborne polyurethane emulsion, 15-25 parts of deionized water, 2-5 parts of pigment, 5-10 parts of negative ion powder, 1-2 parts of adhesion promoter, 1-2 parts of thickener, 0.5-1 part of defoamer, and 0.5-1 part of wetting agent are mixed evenly to obtain negative ion ink.

8. The manufacturing process of men's massage underwear according to claim 1, characterized in that: The weight ratio of the cotton fiber, the silkworm silk, and the spandex fiber is (4-8):(2-3):0.

5.

9. Underwear manufactured using the process described in any one of claims 1-9, comprising an underwear body (1), characterized in that: The front of the underwear body (1) is provided with a forward-protruding crotch (2). The crotch (2) includes an outer layer (5) and an isolation layer (4) from the outside to the inside. The outer layer (5) has a number of protrusions (3) on the side facing the isolation layer (4). The protrusions (3) are arranged in an X-shape.

10. The manufacturing process of men's massage underwear according to claim 1, characterized in that: The outer layer (5) has a negative ion ink printing layer (6) on its surface.

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