Super-soft mushroom head special-shaped condom and preparation method thereof

Abstract

The invention discloses a super-soft mushroom head special-shaped condom and a preparation method thereof, and relates to the technical field of condoms. The super-soft mushroom head special-shaped condom comprises a condom body and a special-shaped condom body arranged on the condom body in a sleeving mode, the special-shaped condom body and the condom body are bonded through an adhesive, and preparation raw materials of the condom body comprise IR2GL1 emulsion, sulfur, a stabilizer and an antioxidant; the preparation raw materials of the special-shaped sleeve comprise vulcanized latex and natural latex; the adhesive is prepared from the following raw materials: natural latex, sulfur, zinc oxide and disproportionated potassium rosinate. According to the invention, the condom body and the special-shaped condom are separately prepared by adopting the corresponding latex, and are bonded through the specific adhesive, so that the texture uniformity of each component can be well controlled, the phenomena of local thinness and multiple pinholes of the special-shaped condom are effectively avoided, and the blasting performance of the prepared special-shaped condom is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of condoms, and particularly relates to a super soft mushroom head special-shaped condom and a preparation method thereof. Background Art

[0002] A condom (also known as a contraceptive condom) is a product that provides dual protection for effective contraception and prevention of sexually transmitted diseases. With the development of the economy and technological innovation, consumers' requirements for condom products are constantly increasing. On the premise of ensuring the physical properties of the products, there are also specific requirements for the use experience of the products. For example, special-shaped condoms with raised textures, bumps, etc. on the surface have been widely welcomed in the market in recent years.

[0003] Currently, the process for producing special-shaped condoms is the dipping molding method. When dipping, a mold with concave and convex textures or bumps on the surface is immersed in latex, and then rotated and lifted. For ordinary condoms, a latex film layer with uniform thickness can be formed. However, for special-shaped condoms, due to the viscosity of latex and the complex structure of the mold including the mold body and the concave and convex textures or bumps provided on the mold body, the flow of latex on the mold is easily blocked, resulting in a locally thinner latex film layer and causing thickness differences. For a product like a condom with a very thin self-thickness, a locally thinner area is likely to lead to more pinholes in the product and a reduction in the bursting performance, significantly reducing the qualified rate of the product. Summary of the Invention

[0004] The main object of the present invention is to propose a super soft mushroom head special-shaped condom and a preparation method thereof, aiming to solve the problems of excessive pinholes and low bursting performance existing in the existing special-shaped condoms.

[0005] To achieve the above object, a super soft mushroom head special-shaped condom proposed by the present invention includes:

[0006] A condom body having an open end and a closed end disposed opposite to each other, wherein the closed end is used to correspond to the sperm storage sac; and,

[0007] A special-shaped sleeve sleeved on the closed end and covering the sperm storage sac, the special-shaped sleeve is bonded to the closed end through an adhesive layer, and the surface of the special-shaped sleeve is provided with protrusions.

[0008] Optionally, the condom body comprises the following preparation raw materials in parts by weight:

[0009]

[0010]

[0011] Optionally, the stabilizer is selected from at least one of sodium dodecyl sulfate and sodium dodecylbenzenesulfonate; and / or,

[0012] The antioxidant is a hindered phenol antioxidant.

[0013] Optionally, the raw materials for preparing the special-shaped sleeve include the following raw materials in parts by weight: 75-90 parts of vulcanized latex and 10-25 parts of natural latex.

[0014] Optionally, the vulcanized latex includes the following raw materials for preparation in parts by weight:

[0015]

[0016] Optionally, the antioxidant is selected from at least one of antioxidant 616 and antioxidant 264; and / or,

[0017] The accelerator is selected from at least one of tetramethylthiuram disulfide, zinc dibutyldithiocarbamate and zinc diethyldithiocarbamate; and / or,

[0018] The activator is selected from at least one of zinc oxide and zinc carbonate.

[0019] Optionally, the adhesive layer includes the following raw materials for preparation in parts by weight:

[0020]

[0021] Optionally, the thickness of the condom body is 0.057-0.059 mm, the thickness of the special-shaped sleeve is 0.41-0.43 mm, and the thickness of the adhesive layer is 1-2 μm.

[0022] The present invention also provides a method for preparing a super-soft mushroom-shaped special-shaped condom, which includes the following steps:

[0023] Prepare the condom body latex, the special-shaped sleeve latex and the adhesive respectively;

[0024] Obtain the condom body and the special-shaped sleeve by dipping and molding;

[0025] Coat the adhesive on the special-shaped sleeve, put the special-shaped sleeve on the condom, and dry the adhesive to obtain the super-soft mushroom-shaped special-shaped condom.

[0026] Optionally, the method for preparing the condom body latex includes the following steps: adding sulfur, a stabilizer and an antioxidant to the IR2GL1 emulsion, and stirring well to obtain the condom body latex; and / or,

[0027] The method for preparing the special-shaped sleeve latex includes the following steps: mixing the vulcanized latex and the natural latex, and stirring well to obtain the special-shaped sleeve latex; and / or,

[0028] The preparation method of the adhesive comprises the following steps: adding sulfur, zinc oxide and potassium disproportionated rosin to natural latex, and stirring well to obtain the adhesive.

[0029] The special-shaped condom provided by the present invention abandons the existing direct dipping molding method, and instead adopts a bonding combination method to produce the special-shaped condom. That is, the condom body and the special-shaped sleeve are first prepared. The condom body is equivalent to a conventional condom, and then the special-shaped sleeve is sleeved on the closed end of the safety head body, and the two are bonded by an adhesive. In this application, the condom body and the special-shaped sleeve are prepared separately, which can better control the texture uniformity of each component structure, effectively avoid the phenomenon of local thinness and excessive pinholes in the special-shaped condom, and improve the bursting performance of the produced special-shaped condom.

[0030] The raw materials for preparing the condom body use IR2GL1 emulsion as the matrix material, and the main component of IR2GL1 emulsion is styrene-isoprene-styrene block polymer. The styrene-isoprene-styrene block polymer includes styrene (PS) segments and isoprene (PI) segments. The PI segments endow the condom with good flexibility, and the PS segments provide good support, so that the condom has more excellent flexibility and elasticity, can better fit the human body, make the condom more fitting during use, and at the same time provide better comfort and sensitivity. Moreover, the raw materials for preparing the condom body do not contain accelerators. For the vulcanization system without accelerators, the vulcanization reaction is slower and the crosslinking density is lower, reducing the rigid connection between the segments, further enabling the condom body to maintain good flexibility and elasticity, and effectively improving the bursting performance of the condom.

[0031] Due to the lack of accelerators, the vulcanization degree of the system is low, and the styrene-isoprene-styrene block polymer that has not participated in crosslinking or has not been over-crosslinked can retain more styrene segments and isoprene segments. When the special-shaped sleeve coated with the adhesive is sleeved on the condom body and dried, it can promote the crosslinking of sulfur in the adhesive with isoprene in the condom body, and can also promote the crosslinking of sulfur in the adhesive with isoprene in the natural latex of the special-shaped sleeve. So that during the low-temperature drying process, the crosslinking reaction of the whole composite system proceeds slowly and orderly, ensuring the crosslinking density and toughness, improving the bonding stability between the condom body and the special-shaped sleeve. After bonding, the integrated structure of the condom body and the special-shaped sleeve ensures the bursting performance of the special-shaped condom.

[0032] The raw materials for preparing the special-shaped sleeve adopt a mixture of vulcanized latex and natural latex, making full use of the characteristics of the two kinds of latexes, which can not only appropriately improve the strength and elasticity of the special-shaped sleeve, but also give full play to the softness and high elongation rate of natural latex. The two kinds of latexes are mixed according to a specific ratio to form a micro-structure with soft and hard phases, ensuring the support force and flexibility of the special-shaped sleeve.

[0033] The technical solution of the present invention uses natural latex as the matrix material of the adhesive, and uses potassium disproportionated rosin as one of the components of the adhesive. A specific content of potassium disproportionated rosin can effectively improve the dispersion stability and plasticity of the adhesive, improve the convenience of operation, and further improve the adhesiveness of the adhesive, so that the special-shaped sleeve is stably bonded to the condom body. Brief Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0035] Figure 1 It is a schematic structural diagram of the process flow of a super-soft mushroom-shaped special-shaped condom provided by the present invention.

[0036] Explanation of the reference numerals in the drawings:

[0037] 1. Condom body; 11. Open end; 12. Closed end; 121. Connection section; 122. Sperm storage sac; 2. Special-shaped sleeve; 21. Bonding section; 22. Curved surface section; 221. Protrusion; 3. Special-shaped condom.

[0038] The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the drawings. Specific Embodiments

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0040] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] Please refer to Figure 1 , the present invention provides a super-flexible mushroom-shaped special-shaped condom, which includes a condom body 1 and a special-shaped sleeve 2. The condom body 1 has an open end 11 and a closed end 12 arranged oppositely. Among them, the closed end 12 is used to correspond to the sperm storage sac 122; the special-shaped sleeve 2 is sleeved on the closed end 12 and covers the sperm storage sac 122. The special-shaped sleeve 2 and the closed end 12 are bonded through an adhesive layer, and protrusions 221 are arranged on the surface of the special-shaped sleeve 2.

[0043] In the technical solution of the present invention, a combined structure of a condom body 1 and a special-shaped sleeve 2 is adopted to form a special-shaped condom 3. The structure of the condom body 1 is the same as that of a conventional condom, presenting a hollow structure, with one end being the open end 11 and the other end being the closed end 12. Among them, the closed end 12 includes a connecting section 121 and a sperm storage sac 122 connected to the connecting section 121.

[0044] The special-shaped sleeve 2 is a hollow structure with one end open, and the special-shaped sleeve 2 is in the shape of a "mushroom". Among them, the special-shaped sleeve 2 includes an adhesive section 21 and a curved surface section 22 connected to the adhesive section 21. Among them, the adhesive section 21 is arranged corresponding to the connecting section 121, and a plurality of protrusions 221 are arranged on the outer wall of the curved surface section 22, and the protrusions 221 and the curved surface section 22 are of an integrally formed structure.

[0045] During bonding, the adhesive is coated on the inner wall of the adhesive section 21, then the adhesive section 21 is sleeved on the outer wall of the connecting section 121, and the end of the sperm storage sac 122 is in contact with the inner wall of the curved surface section 22. Then the adhesive is dried, and the special-shaped sleeve 2 is stably bonded to the closed end 12 to obtain the special-shaped condom 3.

[0046] Specifically, the thickness of the condom body 1 is 0.057 - 0.059 mm, the thickness of the special-shaped sleeve 2 is 0.41 - 0.43 mm, and the thickness of the adhesive layer is 1 - 2 μm.

[0047] It should be noted that the thickness of the special-shaped sleeve refers to the thickness of the bonding section and the curved surface section. In this application, the bonding section and the curved surface section are integrally formed structures.

[0048] Furthermore, the condom body 1 comprises the following raw materials in parts by weight for preparation: 90 - 100 parts of IR2GL1 emulsion, 0.8 - 1.6 parts of sulfur, 0.5 - 1.0 part of stabilizer, and 1.6 - 2.0 parts of antioxidant.

[0049] In the technical solution of the present invention, when preparing the condom body latex, at room temperature (25 ± 1°C), sulfur, stabilizer, and antioxidant are sequentially added to the IR2GL1 emulsion, and the mixture is stirred at a rate of 50 - 80 rpm (revolutions per minute) for 20 - 24 h to obtain the condom body latex.

[0050] It should be noted that the stabilizer is selected from at least one of sodium dodecyl sulfate and sodium dodecylbenzenesulfonate; the antioxidant is a hindered phenol antioxidant. For example, it can be BASF antioxidant Irganox 565, or BASF antioxidant Irganox 1076, or other hindered phenol antioxidants can also be used. This application does not make any restrictions here.

[0051] Furthermore, the raw materials for preparing the special-shaped sleeve 2 include the following raw materials in parts by weight: 75 - 90 parts of vulcanized latex, and 10 - 25 parts of natural latex.

[0052] In the technical solution of the present invention, at room temperature, the vulcanized latex is added to the natural latex, and the mixture is stirred at a rate of 16 - 20 rpm for 2 - 3 h to obtain the special-shaped sleeve latex.

[0053] Specifically, the vulcanized latex comprises the following raw materials in parts by weight for preparation: 90 - 100 parts of natural latex, 1 - 2 parts of sulfur, 0.5 - 1.0 part of antioxidant, 1.0 - 1.6 parts of accelerator, and 0.8 - 1.6 parts of activator.

[0054] In the technical solution of the present invention, when preparing the vulcanized latex, the natural latex is heated to 33 ± 2°C, and the material is stirred at a rate of 16 - 20 rpm during the heating process; sulfur, antioxidant, accelerator, and activator are added to the heated natural latex, and the temperature is further raised to 48 ± 1°C, and the material is stirred at a rate of 16 - 20 rpm during the heating process; it is kept at a temperature of 48 ± 1°C for 4 h, and the material is stirred at a rate of 16 - 20 rpm during the heat preservation process to obtain the vulcanized latex.

[0055] It should be noted that the antioxidant is selected from at least one of antioxidant 616 (the butylated product of p-cresol and dicyclopentadiene) and antioxidant 264 (2,6-di-tert-butyl-4-methylphenol); the accelerator is selected from at least one of tetramethylthiuram disulfide (TMTD), zinc dibutyldithiocarbamate (ZDBC), and zinc diethyldithiocarbamate (ZDC); the activator is selected from at least one of zinc oxide and zinc carbonate.

[0056] Furthermore, the adhesive layer comprises the following raw materials in parts by weight: 95 - 100 parts of natural latex, 1.0 - 1.6 parts of sulfur, 0.4 - 1.2 parts of zinc oxide, and 5 - 10 parts of potassium disproportionated rosin.

[0057] In the technical solution of the present invention, at room temperature, sulfur, zinc oxide, and potassium disproportionated rosin are added to natural latex, and stirred at a rate of 16 - 20 rpm for 3 - 4 h to obtain the adhesive.

[0058] The present invention also provides a method for preparing a super soft mushroom head shaped condom 3, comprising the following steps:

[0059] Prepare the latex of the condom body 1, the latex of the shaped sleeve 2, and the adhesive respectively; obtain the condom body 1 and the shaped sleeve 2 by dipping molding; coat the adhesive on the shaped sleeve 2, sleevethe shaped sleeve 2 on the condom, and dry the adhesive to obtain the shaped condom 3.

[0060] The technical solution of the present invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that the following embodiments are only used to explain the present invention and are not used to limit the present invention.

[0061] Example 1

[0062] Combined with the attached Figure 1 , the present invention provides a method for preparing a super soft mushroom head shaped condom, comprising the following steps:

[0063] (1) Preparation of the condom body

[0064] At room temperature (25 ± 1 °C), 1.0 kg of sulfur, 0.6 kg of sodium dodecyl sulfate, and 1.6 kg of BASF antioxidant Irganox 565 are sequentially added to 90 kg of IR2GL1 latex (Cariflex IR2GL1 latex from Kraton Corporation, with a solid content of 66 ± 1%). TM Stir at a rate of 60 rpm for 24 h to obtain the latex of the condom body for standby.

[0065] Clean the mold, dry the cleaned mold at 85°C, and take out the mold. When the temperature of the mold is 42 ± 2°C, vertically immerse the mold into the condom body latex, rotate the mold in the latex to make the mold horizontal, pause horizontally for 2 s, take out the mold, and put it into an oven to dry for 3 min at 85°C. Take out the mold to complete the first dipping. When the temperature of the mold is 42 ± 2°C, perform the second dipping. The second dipping method is the same as the first dipping method. After completing the second dipping, perform the third dipping. The third dipping method is the same as the first dipping method.

[0066] After completing the third dipping, perform a curling treatment on the edge of the rubber film, and then perform a vulcanization treatment. The temperature during vulcanization is 119 ± 1°C, and the vulcanization time is 20 min. Immerse the vulcanized rubber film in water at 85°C for 50 s, demold, immerse the demolded product in silica white dispersion (containing 5 wt% silica white, and the dispersion medium is water), put it into an oven to dry for 10 min at 85°C to obtain the condom body.

[0067] (2) Preparation of special-shaped condom

[0068] Heat 90 kg of natural latex (ammonia content 0.3 wt%, rubber hydrocarbon content 35 wt%) to 33 ± 2°C, and stir the material at a rate of 18 rpm during the heating process. Add 1.0 kg of sulfur, 0.5 kg of antioxidant 616, 1.0 kg of accelerator ZDC, and 0.8 kg of zinc oxide to the heated natural latex, continue to heat to 48 ± 1°C, and stir the material at a rate of 18 rpm during the heating process. Keep it at a temperature of 48 ± 1°C for 4 h, stir the material at a rate of 18 rpm during the heat preservation process, and cool it naturally to obtain vulcanized latex for standby.

[0069] At room temperature, add 80 kg of vulcanized latex to 20 kg of natural latex (ammonia content 0.3 wt%, rubber hydrocarbon content 35 wt%), and stir at a rate of 18 rpm for 2.5 h to obtain special-shaped condom latex for standby.

[0070] Clean the mold, immerse the cleaned mold in the coagulant, and stay in the coagulant for 30 s. Take out the mold, vertically immerse the mold into the special-shaped condom latex, rotate the mold in the latex to make the mold horizontal, pause horizontally for 2 s, take out the mold, immerse the mold in soft water at 85 ± 2°C, and stay in the soft water for 5 min. Take out and demold, and put the demolded product into a rocking box to vulcanize for 90 min at 85 ± 2°C to obtain the special-shaped condom.

[0071] (3) Preparation of adhesive

[0072] At room temperature, 1.0 kg of sulfur, 0.6 kg of zinc oxide, and 6.0 kg of potassium disproportionated rosin (purity 80%) were added to 95 kg of natural latex (ammonia content 0.3 wt%, rubber hydrocarbon content 35%), and stirred at a rate of 18 rpm for 3.5 h to prepare an adhesive for standby.

[0073] (4) Preparation of special-shaped condoms

[0074] The condom body was sleeved on the mold, the adhesive was coated on the inner wall of the bonding section of the special-shaped sleeve (the height h of the coated adhesive was 33 ± 1 mm), then the bonding section was sleeved on the outer wall of the connecting section of the condom body, and the end of the semen storage sac was in contact with the inner wall of the curved surface section of the special-shaped sleeve. The bonded product together with the mold was put into a shaking box for drying, the drying temperature was controlled at 80 ± 2 °C, and the drying time was 45 min. The dried product together with the mold was taken out, and the product was removed from the mold to obtain a special-shaped condom.

[0075] Examples 2 - 3

[0076] Examples 2 - 3 were based on Example 1, and the difference was that: the dosages of the raw materials for preparing the condom body latex in steps (1) to (3) were different, and the others were the same as those in Example 1.

[0077] Example 2

[0078] In step (1), the condom body latex included the following raw materials by weight: 95 kg of IR2GL1 emulsion, 1.2 kg of sulfur, 0.8 kg of sodium dodecyl sulfate, and 1.8 kg of BASF antioxidant Irganox 565.

[0079] In step (2), the vulcanized latex included the following raw materials by weight: 95 kg of natural latex, 1.6 kg of sulfur, 0.8 kg of antioxidant 616, 1.2 kg of accelerator ZDC, and 0.2 kg of zinc oxide; the special-shaped sleeve latex included the following raw materials by weight: 85 kg of vulcanized latex and 15 kg of natural latex.

[0080] In step (3), the adhesive included the following raw materials by weight: 98 kg of natural latex, 1.3 kg of sulfur, 0.8 kg of zinc oxide, and 8.0 kg of potassium disproportionated rosin.

[0081] Example 3

[0082] In step (1), the condom body latex included the following raw materials by weight: 100 kg of IR2GL1 emulsion, 1.6 kg of sulfur, 1.0 kg of sodium dodecyl sulfate, and 2.0 kg of BASF antioxidant Irganox 565.

[0083] In step (2), the vulcanized latex comprises the following raw materials for preparation by weight: 100 kg of natural latex, 2.0 kg of sulfur, 1.0 kg of antioxidant 616, 1.6 kg of accelerator ZDC, and 1.6 kg of zinc oxide; the special-shaped sleeve latex comprises the following raw materials for preparation by weight: 90 kg of vulcanized latex and 10 kg of natural latex.

[0084] In step (3), the adhesive comprises the following raw materials for preparation by weight: 100 kg of natural latex, 1.6 kg of sulfur, 1.2 kg of zinc oxide, and 10 kg of potassium disproportionated rosin.

[0085] Comparative Example 1

[0086] This comparative example is based on Example 1, and the difference lies in that: the raw materials for preparing the condom body latex in step (1) further include 0.8 kg of accelerator ZDC, and the others are the same as those in Example 1.

[0087] Performance test

[0088] The special-shaped condoms prepared in Examples 1 to 3 and Comparative Example 1 were subjected to pinhole defect detection, burst volume and burst pressure detection, and the detection results are shown in Table 1 below.

[0089] The standard referred to for the detection method of pinhole defects is: HG / T 5457-2018, and 50 special-shaped condoms were randomly selected from each experimental group for detection.

[0090] The standards referred to for the detection methods of burst volume and burst pressure are: HG / T 5457-2018, and the detection standard requires that the pressure ≥ 0.8 kPa; the volume ≥ 27.0 dm 3 , and 13 special-shaped condoms were randomly selected from each experimental group for burst performance detection, and the results were averaged.

[0091] Table 1 Performance test results of special-shaped condoms

[0092]

[0093]

[0094] It can be seen from the test results in Table 1 that the special-shaped condoms prepared by the present invention have no pinhole defects and have excellent burst performance, which can greatly improve the qualified rate of products.

[0095] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the patent protection scope of the present invention.

Claims

1. A super soft mushroom-shaped special-shaped condom, characterized in that, Comprising: A condom body having an open end and a closed end disposed opposite to each other, wherein the closed end is provided corresponding to the seminal vesicle storage; And A special-shaped sleeve sleeved on the closed end and covering the seminal vesicle storage. The special-shaped sleeve is bonded to the closed end through an adhesive layer, and protrusions are provided on the surface of the special-shaped sleeve.

2. The super-soft mushroom-shaped special-shaped condom according to claim 1, characterized in that, The condom body comprises the following raw materials for preparation by weight fraction:

3. The super-soft mushroom-shaped special-shaped condom according to claim 2, characterized in that, The stabilizer is selected from at least one of sodium dodecyl sulfate and sodium dodecylbenzenesulfonate; and / or The antioxidant is a hindered phenol antioxidant.

4. The super soft mushroom head special-shaped condom according to claim 1, characterized in that, The raw materials for preparing the special-shaped sleeve comprise the following raw materials by weight fraction: 75-90 parts of vulcanized latex and 10-25 parts of natural latex, wherein the vulcanized latex is the latex formed after natural latex is vulcanized.

5. The super-soft mushroom-shaped special-shaped condom according to claim 4, wherein The vulcanized latex comprises the following raw materials for preparation by weight:

6. The super-soft mushroom-shaped special-shaped condom according to claim 5, characterized in that, The antioxidant is selected from at least one of antioxidant 616 and antioxidant 264; and / or The accelerator is selected from at least one of tetramethylthiuram disulfide, zinc dibutyldithiocarbamate and zinc diethyldithiocarbamate; and / or The activator is selected from at least one of zinc oxide and zinc carbonate.

7. The super-soft mushroom-shaped special-shaped condom according to claim 1, characterized in that, The adhesive layer comprises the following raw materials for preparation by weight fraction:

8. The super-soft mushroom-shaped special-shaped condom according to claim 1, characterized in that, The thickness of the condom body is 0.057-0.059 mm, the thickness of the special-shaped sleeve is 0.40-0.43 mm, and the thickness of the adhesive layer is 1-2 μm.

9. A preparation method of a super-soft mushroom-shaped special-shaped condom, characterized in that, Including the following steps: Prepare the condom body latex, the special-shaped sleeve latex and the adhesive respectively; Obtain the condom body and the special-shaped sleeve by means of dip molding; Coat the adhesive on the special-shaped sleeve, sleeve the special-shaped sleeve on the condom, and dry the adhesive to obtain the ultra-soft mushroom head special-shaped condom.

10. The preparation method of the super-soft mushroom head special-shaped condom according to claim 9, characterized in that, The preparation method of the condom body latex comprises the following steps: adding sulfur, a stabilizer and an antioxidant into the IR2GL1 emulsion, and stirring well to obtain the condom body latex; and / or The preparation method of the special-shaped sleeve latex comprises the following steps: mixing the vulcanized latex and the natural latex, and stirring well to obtain the special-shaped sleeve latex; and / or The preparation method of the adhesive comprises the following steps: adding sulfur, zinc oxide and potassium disproportionated rosin into the natural latex, and stirring well to obtain the adhesive.

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