Condom with complex physical delay and method of manufacture

Abstract

The present application provides a kind of composite physical delay type condom, including the first structural layer and the second structural layer being arranged from inside to outside, the first structural layer and the second structural layer material are different;Main body includes head, neck and is arranged between the neck ring portion of head and neck, the inner diameter of neck ring portion is less than the inner diameter of head or neck, the thickness of neck ring portion is greater than the thickness of head or neck.A kind of processing method of composite physical delay type condom, including mold cleaning;Impregnation latex;Impregnation polyurethane;Edge folding demoulding.The composite physical delay type condom and processing method disclosed in the present application utilize physical methods, effectively maintain and prolong the hyperemic pressure state of penis, maintain and enhance the intensity and time of penile erection, improve and enhance the quality of sexual life, the main body of composite structure can ensure the elasticity of product, and can form dense film, prevent HIV, hepatitis b virus penetration, have good barrier property, provide better protection for users.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of condoms, in particular to a composite physical delay type condom and a processing method. BACKGROUND

[0002] The traditional delay condom adds benzocaine in the lubricant of the condom, which is a skin surface anesthetic, reduces the sensitivity of the nerve endings, and thus achieves the purpose of delaying, but different people have different sensitivities to benzocaine, and long-term use can form dependence, and improper use can even cause ejaculation difficulty. SUMMARY

[0003] The present application provides a composite physical delay type condom and a processing method to solve the above problems.

[0004] A composite physical delay type condom, comprising: a main body, the main body at least comprising a first structure layer and a second structure layer arranged from inside to outside, the first structure layer and the second structure layer being different in material;

[0005] The main body comprises a head, a neck and a neck ring part arranged between the head and the neck, the inner diameter of the neck ring part is smaller than the inner diameter of the head or the neck, and the thickness of the neck ring part is greater than the thickness of the head or the neck.

[0006] Further, the first structure layer is a latex layer, and the second structure layer is a polyurethane layer.

[0007] Further, it further comprises a third structure layer arranged outside the second structure layer, and the third structure layer and the second structure layer are the same in material.

[0008] Further, the neck ring part comprises a first extension part, a second extension part and a ring body part arranged between the first extension part and the second extension part, the first extension part extends from the head to the inside of the main body, the second extension part extends from the neck to the inside of the main body, the first extension part and the second extension part both have an arc surface protruding to the outside of the main body, the trend of the first extension part and the second extension part gradually decreasing, and the inner diameter of the ring body part is 72%-84% of the inner diameter of the main body.

[0009] Further, the head has a semen storage sac, and the neck has a rolled edge.

[0010] A processing method of a composite physical delay type condom, comprising the following steps:

[0011] S1: mold cleaning;

[0012] S2: impregnate latex and dry;

[0013] S3: impregnate the waterborne polyurethane and dry;

[0014] S4: crimp and dry;

[0015] S5: isolate and demould.

[0016] Further, the latex comprises natural rubber latex 100 parts; zinc oxide 0.6-0.7 parts; anti-aging agent WSL 1.1 part; 5% potassium hydroxide solution 0.15 parts; NNO 0.1-0.2 parts; peregal O 0.15 parts; casein 0.1 part; sulfur 1 part; accelerator EZ 0.05-0.1 parts; accelerator PX 0.5-0.6 parts.

[0017] Further, the raw material of the waterborne polyurethane comprises polytetrahydrofuran ether glycol, isophorone diisocyanate, butanediol and dimethylol propionic acid, the content of the isophorone diisocyanate is 28%-32%, and the content of the polytetrahydrofuran ether glycol accounts for 72%-68%.

[0018] The composite physical delay type condom and processing method disclosed by the application utilize physical methods to effectively maintain and prolong the hyperemic pressure state of the penis, maintain and enhance the strength and time of the erection of the penis, improve and enhance the quality of sexual life, the main body of the composite structure can guarantee the elasticity of the product and form a dense film to prevent the penetration of HIV and hepatitis B virus, and has good barrier property, thereby providing better protection for the user. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a structure schematic diagram of the composite physical delay type condom disclosed in embodiment 1 of the present application.

[0021] Figure 2 It is a structure schematic diagram of the composite physical delay type condom disclosed in embodiment 1 of the present application. Figure 1 It is an enlarged view of part A in the figure.

[0022] Figure 3 It is an enlarged view of the cross-sectional structure of the composite physical delay type condom disclosed in embodiment 2.

[0023] Figure 4 It is an enlarged view of part B in the figure. Figure 1

[0024] In the figure:

[0025] ​1. Main body; 2. First structural layer; 3. Second structural layer; 4. Third structural layer; 5. Head; 6. Neck; 7. Neck ring; 71. First extension; 72. Second extension; 73. Ring body; 8. Seminal vesicle; 9. Rolled edge. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1:

[0028] like Figure 1 As shown, a composite physical delay condom includes: a main body 1, as shown in the figure. Figure 2 As shown, the main body 1 includes a first structural layer 2 and a second structural layer 3 arranged from the inside out and from the outside out, and the first structural layer 2 and the second structural layer 3 are made of different materials;

[0029] The main body 1 includes a head 5, a neck 6, and a neck ring 7 disposed between the head 5 and the neck 6. The inner diameter of the neck ring 7 is smaller than the inner diameter of the head 5 or the neck 6, and the thickness of the neck ring 7 is greater than the thickness of the head 5 or the neck 6.

[0030] This embodiment is a condom with a double-layer structure. The first structural layer 2 is a latex layer, a film formed from natural rubber latex, and the second structural layer 3 is a polyurethane layer, a film formed from water-based polyurethane. The two layers are made of different materials. Latex material has good ductility, which gives the condom good performance and prevents breakage. Polyurethane material itself has good biocompatibility and mechanical properties, and most importantly, it can form a dense film that prevents HIV and hepatitis B virus from penetrating, providing excellent barrier properties and better protection for consumers.

[0031] Based on the physiological characteristics of blood inflow and outflow changes in the penis during erection, as well as the anatomical distribution of penile arteries and veins, and according to the shape and anatomical features of the penis, a neck ring is provided on the main body. The neck ring is a tight ring structure 5cm away from the closed end of the condom. It uses physical methods to effectively reduce the blood return speed of the penis, effectively maintain and prolong the state of penile engorgement pressure, maintain and enhance the strength and duration of penile erection, and improve and enhance the quality of sexual life.

[0032] The composite structure adhesive film can ensure the elasticity of the product and reflect sufficient protection force of the product, and the use of the composite structure adhesive film is beneficial to improving the competitiveness of the product.

[0033] The product is tested according to GB / T7544-2019 Appendix H, and the burst pressure should be not less than 1.0KPa, and the burst volume should be not less than 5d m 3 , which is consistent with the polyurethane condom. According to the method of GB7544-2019 Appendix J, the tensile strength of the condom should be not less than 15.0N (10.0N for polyurethane condom). According to the method of GB7544-2019 Appendix J, the elongation at break of the condom should be not less than 500% (400% for polyurethane condom). In this way, the elasticity of natural rubber is retained, and the tensile properties are also better than polyurethane condoms.

[0034] Compared with the traditional natural rubber latex male condom (neck ring physical delay smooth type), the condom of the present application is thinner, but has better protection, and has better barrier ability to small viruses including HIV and hepatitis B virus than the natural rubber latex male condom.

[0035] As shown in Figure 4 , the neck ring part 7 includes a first extension part 71, a second extension part 72, and a ring body part 73 arranged between the first extension part 71 and the second extension part 72, the first extension part 71 extends from the head part 5 to the inside of the main body 1, the second extension part 72 extends from the neck part 6 to the inside of the main body 1, the first extension part 71 and the second extension part 72 both have an arc surface protruding outwardly of the main body 1, the trend of the first extension part 71 and the second extension part 72 approaching each other gradually decreases, and the inner diameter of the ring body part 73 is 72%-84% of the inner diameter of the main body 1.

[0036] The first extension part 71 and the second extension part 72 are symmetrical in structure, and the first extension part 71 is taken as an example for description. The first extension part extends from the head part 5 to the neck part and extends to the inside of the main body, and the rate of the extension to the inside of the main body gradually increases, so that the first extension part 71 forms an arc surface, and the arc surface protrudes outwardly of the main body; the arc surfaces formed by the first extension part 71 and the second extension part 72 make the first extension part and the second extension part approach the ring body part faster as they are closer to the ring body part, so that the ring body part can have a better tightening effect and achieve the purpose of delay. The arc surface formed by the first extension part 71 is adapted to the corona of the glans penis, so that the user does not feel uncomfortable.

[0037] In this embodiment, the head part 5 has a semen storage sac 8, and the neck part 6 has a rolled edge 9.

[0038] The present application also discloses a processing method of the composite physical delay type condom, which comprises the following steps:

[0039] S1: mold cleaning;

[0040] S2: dipping latex and drying;

[0041] S3: dipping waterborne polyurethane and drying;

[0042] S4: crimping and drying;

[0043] S5: isolation demolding.

[0044] In the mold cleaning, a small amount of sodium dodecyl benzene sulfonate surfactant is added according to the requirement to strengthen the washing effect; then soft water is used to remove the surface residues; then hot water with a temperature of 80±10℃ is used, the temperature of the mold into the glue tank is 50±8℃, and the dipping time is 15-25s.

[0045] In the dipping latex, the latex temperature is required to be 30±5℃, the mold dipping time from the beginning of the storage sac to the deepest dipping point of 250mm is 10±5s, and the time from the deepest dipping point to the bottom of the storage sac leaving the glue surface is required to be 60±10s. Then drying is performed at a temperature of 80±10℃ for 6-8 minutes.

[0046] In the dipping waterborne polyurethane, the waterborne polyurethane temperature is required to be 28±6℃. The mold dipping time from the beginning of the storage sac to the deepest dipping point of 230mm is 10±5s, and the time from the deepest dipping point to the bottom of the storage sac leaving the glue surface is required to be 60±10s. Soft water with a hardness of not more than 0.03.mmol / L (calculated by calcium ion) is used for mold dipping. Then drying is performed at a temperature of 80±10℃ for 7-10 minutes.

[0047] In the crimping and drying process, a two-section crimping device is used, the crimping roll material is preferably polyurethane roll with a shore hardness of 80-95. The crimping should be flat and straight, with no eight-character edge, and the crimping diameter is 1.2-1.5mm. Then drying is performed at a temperature of 100±10℃ for 9-11 minutes.

[0048] In the isolation demolding process, the leaching tank is 1.2-1.5% alkali water, with appropriate addition of surfactant, and the temperature is 50-70℃. The dipping time is 10±5s for the time when the condom completely enters the outer isolation agent. Water flow is used to peel the condom from the mold.

[0049] In the embodiment, the latex includes natural rubber latex 100 parts; zinc oxide 0.6-0.7 parts; antioxidant WSL 1.1 part; 5% potassium hydroxide solution 0.15 parts; NNO 0.1-0.2 parts; peregal O 0.15 parts; casein 0.1 part; sulfur 1 part; accelerator EZ 0.05-0.1 part; accelerator PX 0.5-0.6 parts.

[0050] The natural rubber latex dry rubber content is not less than 60%, the non-volatile fatty acid content is not more than 0.03%, and the non-rubber solid content is not higher than 1.6%.

[0051] The zinc oxide, sulfur, accelerator EZ and accelerator PX are all 50% water dispersions ground by a continuous sand mill, and all the water dispersions are ground by a nano sand mill to a dispersion particle size D50 of not more than 3 microns, and the water dispersion particle size D50 of the antioxidant WSL is not more than 5 microns.

[0052] 0.5-1.5% of non-ionic and anionic surfactants are added to the ground water dispersion.

[0053] The raw materials of the water-based polyurethane include polytetrahydrofuran ether diol, isophorone diisocyanate, butanediol and dimethylol propionic acid, the content of the isophorone diisocyanate is 28%-32%, and the content of the polytetrahydrofuran ether diol accounts for 72%-68%.

[0054] The hard segment of the water-based polyurethane is composed of reacted diisocyanate or diisocyanate and a chain extender, contains strong polar groups such as aryl, carbamate groups and substituted urea groups, and the conformation of the rigid segment formed by the aromatic isocyanate is not easy to change, and is stretched into a rod at room temperature. The hard segment of the water-based polyurethane in the application is preferably IPDI (isophorone diisocyanate), and the hydrophilic chain extender is preferably DMPA (dimethylol propionic acid).

[0055] The soft segment of the water-based polyurethane is composed of oligomer polyols such as polyether and polyester, and the soft segment accounts for a large part in the WPU, and the polyether polyol PTMG is selected in the application. The WPU prepared by different oligomer polyols and diisocyanate has different performances.

[0056] The water-based polyurethane emulsion in the application is prepared by a prepolymer method, an acetone method. The raw materials include polytetrahydrofuran ether diol, isophorone diisocyanate, butanediol, dimethylol propionic acid and the like. The hard segment is IPDI, the soft segment is PTMG, the content of the hard segment is 28%-32%, the content of the soft segment accounts for 72%-68%, and the amount of the hydrophilic chain extender DMPA is 5%.

[0057] The preferred formula is as follows:

[0058]

[0059] The hard segment and the soft segment are arranged alternately.

[0060] The ratio of R to 3.5 n(--NCO) / n(--OH)

[0061] r is 1.25, and the r value represents the residual amount of NCO of the water-based polyurethane prepolymer

[0062] Example 2

[0063] As Figure 3 shown, the embodiment differs from embodiment 1 in that it further comprises a third structural layer 4 outside the second structural layer 3, the third structural layer 4 has the same material as the second structural layer 3, both are water-based polyurethane layers.

[0064] In this embodiment, two layers of water-based polyurethane are included. After the first immersion and drying of the water-based polyurethane, the second immersion of the water-based polyurethane is carried out. The temperature of the water-based polyurethane is required to be 28±6℃. The mold immersion time from the beginning of the storage of the seminal vesicle to the immersion of the deepest part of 230mm is 10±5S. The time required for the extraction from the deepest part to the bottom of the storage of the seminal vesicle away from the glue surface is 60±10S. Then, the temperature is 80±10℃, and the time is 5-7 minutes for drying.

[0065] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A composite physical delay condom, characterized in that, include: The main body (1) includes at least a first structural layer (2) and a second structural layer (3) arranged from the inside out, wherein the first structural layer (2) and the second structural layer (3) are made of different materials; The main body (1) includes a head (5), a neck (6) and a neck ring (7) disposed between the head (5) and the neck (6). The inner diameter of the neck ring (7) is smaller than the inner diameter of the head (5) or the neck (6), and the thickness of the neck ring (7) is greater than the thickness of the head (5) or the neck (6). The neck ring (7) includes a first extension (71), a second extension (72), and a ring body (73) disposed between the first extension (71) and the second extension (72). The first extension (71) extends from the head (5) toward the inside of the body (1), and the second extension (72) extends from the neck (6) toward the inside of the body (1). Both the first extension (71) and the second extension (72) have an arc surface that protrudes toward the outside of the body (1), so that the tendency of the first extension (71) and the second extension (72) to move closer to each other gradually decreases. The first structural layer (2) is a latex layer, and the second structural layer (3) is a polyurethane layer.

2. The composite physical delay condom according to claim 1, characterized in that, It also includes a third structural layer (4) disposed outside the second structural layer (3), the third structural layer (4) being made of the same material as the second structural layer (3).

3. The composite physical delay condom according to claim 1, characterized in that, The inner diameter of the ring portion (73) is 72%-84% of the inner diameter of the main body (1).

4. The composite physical delay condom according to claim 1, characterized in that, The head (5) has a seminal vesicle (8), and the neck (6) has a rolled edge (9).

5. A method for processing a composite physical delay condom according to any one of claims 1-4, characterized in that, Includes the following steps: S1: Mold cleaning; S2: Impregnate with latex and dry; S3: Impregnate with waterborne polyurethane and dry; S4: Roll the edges and dry; S5: Isolate and demold.

6. The processing method of the composite physical delay condom according to claim 5, characterized in that, The latex comprises 100 parts of natural rubber latex; 0.6-0.7 parts of zinc oxide; 1.1 parts of antioxidant WSL; 0.15 parts of 5% potassium hydroxide solution; 0.1-0.2 parts of NNO; 0.15 parts of paclitaxel O; 0.1 parts of casein; 1 part of sulfur; 0.05-0.1 parts of accelerator EZ; and 0.5-0.6 parts of accelerator PX.

7. The processing method of the composite physical delay condom according to claim 5, characterized in that, The raw materials of the waterborne polyurethane include polytetrahydrofuran ether diol, isophorone diisocyanate, butanediol and dimethylolpropionic acid, wherein the isophorone diisocyanate content is 28%-32% and the polytetrahydrofuran ether diol content is 72%-68%.

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