CN108378433B - Bionic bra with natural sterilization, health care and breast protection functions and preparation method thereof - Google Patents
Bionic bra with natural sterilization, health care and breast protection functions and preparation method thereof Download PDFInfo
- Publication number
- CN108378433B CN108378433B CN201810077985.6A CN201810077985A CN108378433B CN 108378433 B CN108378433 B CN 108378433B CN 201810077985 A CN201810077985 A CN 201810077985A CN 108378433 B CN108378433 B CN 108378433B
- Authority
- CN
- China
- Prior art keywords
- layer
- latex
- bra
- parts
- cup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 59
- 210000000481 breast Anatomy 0.000 title claims abstract description 19
- 230000036541 health Effects 0.000 title claims abstract description 18
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 15
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 15
- 230000006870 function Effects 0.000 title claims description 17
- 238000002360 preparation method Methods 0.000 title abstract description 27
- 239000004816 latex Substances 0.000 claims abstract description 199
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 22
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 19
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 18
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- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 11
- VVWRJUBEIPHGQF-UHFFFAOYSA-N propan-2-yl n-propan-2-yloxycarbonyliminocarbamate Chemical compound CC(C)OC(=O)N=NC(=O)OC(C)C VVWRJUBEIPHGQF-UHFFFAOYSA-N 0.000 claims description 11
- 239000011787 zinc oxide Substances 0.000 claims description 11
- YEECOJZAMZEUBB-UHFFFAOYSA-N 2,2,3,3,6,6,7,7-octamethyloctane Chemical compound CC(C)(C)C(C)(C)CCC(C)(C)C(C)(C)C YEECOJZAMZEUBB-UHFFFAOYSA-N 0.000 claims description 10
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
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Images
Classifications
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41C—CORSETS; BRASSIERES
- A41C3/00—Brassieres
- A41C3/12—Component parts
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- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J9/0066—Use of inorganic compounding ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
- C08J9/105—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof containing sulfur
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2437/00—Clothing
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Emergency Medicine (AREA)
- Textile Engineering (AREA)
- Inorganic Chemistry (AREA)
- Corsets Or Brassieres (AREA)
Abstract
The invention relates to the technical field of underwear bras, in particular to a bionic bra with a natural sterilization, health care and breast protection function and a preparation method thereof. The bra provided by the invention adopts the natural and harmless latex layer, is good in antibacterial and mite inhibiting effects, improves the antibacterial performance of the bra, is high in elasticity, softness, skin affinity and air permeability, improves the air permeability of the bra by adopting the upright cotton layer, improves the supporting and shaping effects of the bra by adopting the rubber net layer, is not easy to deform and good in durability, improves the supporting and gathering effects of the bra by arranging the hand-push area, and is high in practicability.
Description
Technical Field
The invention relates to the technical field of underwear bras, in particular to a bionic bra with a natural sterilization, health care and breast protection function and a preparation method thereof.
Background
Brassiere underwear is one of women's indispensable articles for use, play the bearing and gather together the effect to women's chest, but present brassiere cup adopts the sponge surface fabric mostly, but development and people along with the society are to the promotion of healthy cognition degree, people gradually know the gas permeability of sponge poor, and breed the bacterium easily, produce most adverse effect to women's chest's health, and the material that prepares sponge in-process and adopts has certain volatility, wear the brassiere made by harmful sponge, arouse women's chest disease very easily, even cause the cancer.
And upright cotton with its good air permeability, the brassiere of adopting upright cotton surface fabric gradually appears, improves the gas permeability of brassiere, but upright cotton's washing resistance can not be good with the support design effect, makes the brassiere take place to warp easily and the flat problem of collapsing, also fails to solve the problem that easily breeds the bacterium in addition for the brassiere still has the health problem.
The natural latex is milky white liquid flowing out from a rubber tree during rubber tapping, has natural and fresh frankincense flavor, has the characteristics of natural antibiosis, mite suppression and deodorization, and the prepared natural latex material has better elasticity, flexibility, air permeability, film forming property and other properties, but the current natural latex has poor aging resistance, durability, heat resistance, water washing resistance and other properties, so that the market needs are difficult to meet.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide the bionic bra with the natural sterilization health care breast protection function, the natural latex is adopted as the latex layer, the bionic bra is natural and harmless, has better antibacterial, mite inhibiting and deodorizing effects, improves the antibacterial and deodorizing performance of the bra, has high elasticity, high softness, high skin-friendly degree and strong air permeability, improves the air permeability of the bra by adopting the vertical cotton layer, improves the supporting and shaping effect of the bra by adopting the latex layer, is not easy to deform and has good durability.
The invention also aims to provide a preparation method of the bionic bra with the natural sterilization, health care and breast protection functions, the preparation method is convenient to operate and control, stable in quality and high in production efficiency, the structure and the performance of the natural latex cannot be damaged, and the prepared bra has better antibacterial property, elasticity, support property, flexibility and air permeability.
The purpose of the invention is realized by the following technical scheme: the utility model provides a bionical brassiere with natural health care breast protection function that disinfects, includes cup portion, cup portion include heart and symmetric connection in the cup of heart both sides, the cup includes first emulsion layer, upright cotton layer and the second emulsion layer that sets gradually from outer to inner, upright cotton layer with be equipped with the rubber net layer between the second emulsion layer, the rubber net layer set up in being close to one side of heart, upright cotton layer is kept away from one side protruding hand push district that is equipped with of heart.
The bionic bra adopts the natural latex as the latex layer, is natural and harmless, has better antibacterial, mite-inhibiting and deodorizing effects, improves the antibacterial and deodorizing performances of the bra, has high elasticity, high softness and high skin-friendly degree, and has the characteristics of strong air permeability and strong water absorption due to the uneven pore distribution of the natural latex, is not easy to deform, has the texture similar to that of human skin, and has good bionic effect; and the gas permeability of brassiere has been improved on the cotton layer of standing vertically of adoption, and the rubber net layer of adoption has improved the support design effect of brassiere, and the water-fast washing performance is good, non-deformable, and the durability is good, and the hand push district that sets up has improved the support of brassiere and has gathered together the effect, and the practicality is high. In addition, the bionic bra of the application is subjected to Oeko-Tex Standard 100 Standard authentication detection (the certificate number is 17.HCN.22396), and the adopted latex layer is made of all-natural latex, so that the bionic bra is natural and harmless.
Preferably, the area of the mesh layer is 1/4 to 3/5 of the area of the cup.
According to the invention, the support performance and the air permeability of the bra can be improved by strictly controlling the area of the rubber net layer, if the area of the rubber net layer is too large, the soft comfort level of the bra is reduced, and if the area of the rubber net layer is too small, the support effect of the bra cup is reduced, so that the bra cup is easy to collapse.
Preferably, the thickness of the first latex layer and the thickness of the second latex layer are both 1.5-5mm, the thickness of the rubber net layer is 1-3mm, and the mesh density of the rubber net layer is 18-40/cm2。
According to the bionic bra, the thicknesses of the first latex layer and the second latex layer are strictly controlled, so that the bionic bra has good antibacterial, mite-inhibiting and deodorizing performances, and is high in elasticity, softness, skin-friendly degree and air permeability, if the thickness of the latex layer is thin, the elasticity and softness of the latex layer are reduced, and if the thickness of the latex layer is thick, the air permeability and wearing comfort of the latex layer are reduced, so that the thicknesses of the first latex layer and the second latex layer are preferably 1.5-5 mm.
The invention can lead the rubber net layer to have better supporting function and air permeability by strictly controlling the thickness and the mesh density of the rubber net layer, if the thickness of the rubber net layer is smaller and the mesh density is higher, the supporting performance of the rubber net layer can be reduced, if the thickness of the rubber net layer is larger and the mesh density is smaller, the hardness of the rubber net layer is larger, the air permeability is lower, and the wearing comfort of the bra is reduced, therefore, the preferred thickness of the rubber net layer is 1-3mm, and the mesh density of the rubber net layer is 18-40/cm2。
Preferably, the first latex layer and the second latex layer are both provided with a plurality of air holes penetrating through the inner surface and the outer surface of the latex layer, the diameter of each air hole is 0.15-0.95mm, and the distribution density of the air holes is 75-135/dm2。
According to the invention, the first latex layer and the second latex layer are provided with the air holes, and the diameters and the distribution density of the air holes are strictly controlled, so that the air permeability of the latex layer is improved, and the air holes are combined with the upright cotton layer with strong air permeability, so that the air permeability of the bra is greatly improved, the stuffiness feeling generated when the bra is worn is avoided, and the bra is comfortable to wear; in addition, if the diameter of the air holes is small and the distribution density is small, the air permeability of the latex layer is reduced, and if the diameter of the air holes is too large and the distribution density is too large, the supporting performance of the latex layer is reduced, and the phenomena of deformation and flat collapse are easy to occur.
Preferably, the hand-push area comprises a plurality of hand-push pieces, and the hand-push pieces are radially arranged from top to bottom in sequence by taking the heart of the chicken as a center.
According to the invention, the hand-push pieces are arranged in sequence from top to bottom in a radial shape by taking the heart as the center, so that the hand-push pieces can be supported inwards from the outer ends of the cups to push the breasts inwards, the effect of gathering the breasts is achieved as if the breasts are encircled by two hands and pushed inwards, and the supporting effect and the gathering effect of the bra are improved.
Preferably, the silica gel layer is a silica gel layer.
The invention has better softness and supporting performance by adopting the silica gel net layer.
Preferably, the volume of a plurality of hand-push pieces increases from top to bottom in sequence.
The size of the hand-pushed piece is strictly controlled to be increased from top to bottom in sequence, the hand-pushed piece can be adapted to the chest, the gravity of the bottom of the chest is larger than the gravity of the upper part of the chest due to the action of the gravity of the chest, so that the size of the hand-pushed piece is increased in sequence, the larger the size of the hand-pushed piece is, the larger the supporting effect of the hand-pushed piece is, and the better supporting and gathering effects can be achieved on the lower part of the chest.
Preferably, the height of the hand-push area is 0.5-3.2 mm.
The chest support device can play a better supporting and gathering effect on the chest by strictly controlling the protruding height of the hand-pushing area, if the protruding height is lower, the supporting effect on the chest is lower, and if the protruding height is higher, a certain oppression feeling is caused on the chest, so the preferable protruding height is 0.5-3.2 mm.
Preferably, the first latex layer and the second latex layer both comprise the following raw materials in parts by weight:
the first latex layer and the second latex layer have low requirements on production equipment, and the raw materials of the latex layers are nontoxic, environment-friendly and harmless to human bodies, so that the latex layers can be used for preparing underwear fields such as bras, the strength, the aging resistance, the durability and other properties of the latex materials are improved, and the washing resistance effect is good.
The methyl methacrylate is used as a foaming monomer, so that the performance is stable, and the stability and the foaming effect of the latex material are improved.
The sodium alginate is a byproduct extracted from brown algae such as kelp or gulfweed, is natural and environment-friendly, is harmless to human bodies, plays a better role in stabilization, emulsification, suspension and dispersion in a latex system, enables the latex material to have a better foaming effect, and endows the latex material with better stability, permeability and plasticity, and the prepared latex layer has good friction resistance, high softness and good stability, can be in a better molten state at high temperature, is easy to be pressed with an upright cotton layer, and improves the interlayer stability of cups.
The xanthan gum is natural and environment-friendly, is harmless to human bodies, plays a better role in stabilization, emulsification, suspension and dispersion in a latex system, has good viscosity, can ensure that the prepared latex layer has better stability and aging resistance, can ensure that the latex material generates fine and small pores in the foaming process to prepare the latex layer with fine and smooth air holes, can ensure that the prepared latex layer can be in a better molten state at high temperature, is easy to be pressed with an upright cotton layer, and improves the interlayer stability of cups.
The zinc oxide and the zinc stearate are nontoxic to human bodies, can be mixed with other raw materials and can perform synergistic reaction, the foaming process and the vulcanization process of the system can be activated in a latex material system, the function of a foaming promoter is realized, the crosslinking density of the latex material is improved, the prepared latex layer has better elasticity, aging resistance, wear resistance and tearing resistance, and the water washing resistance and durability of the bionic bra containing the latex layer are improved.
By adopting the cross-linking agent and strictly controlling the dosage to be 1-3 parts, the stress cracking resistance and the wear resistance of the emulsion layer can be effectively improved, and the water washing resistance and the durability of the bionic bra are improved.
By adopting the foaming agent and strictly controlling the dosage to be 5-10 parts, the foaming process and the foaming effect of a latex material system can be effectively improved, fine and tiny foam holes can be generated in the latex material in the foaming process, a latex layer with fine and smooth air holes is prepared, and the elasticity, the softness and the air permeability of the bionic bra are improved.
By adopting the vulcanization accelerator and strictly controlling the dosage to be 1.5-2.5 parts, the vulcanization effect of the latex material can be improved, fine, small and uniformly distributed foam holes can be generated in the foaming process of the latex material, the air permeability, the elasticity, the flexibility and the supporting effect of the latex layer are improved, the stuffy feeling of the latex layer on the chest is avoided, and the wearing comfort of the bionic bra is improved.
Preferably, the cross-linking agent is dicumyl peroxide and/or 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide; the foaming agent is at least one of azodicarbonamide, diisopropyl azodicarboxylate and p-toluenesulfonyl hydrazide; the vulcanization accelerator is tetramethylthiuram monosulfide and/or N-cyclohexyl-2-benzothiazyl sulfenamide.
The bionic bra adopts dicumyl peroxide and/or 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide as a cross-linking agent, is environment-friendly and low in toxicity, can be used for preparing underwear such as bras and the like, is harmless to human bodies, can be used together with zinc oxide, can effectively improve the strength and the aging resistance of a latex material system, can enable the latex material to generate fine, tiny and uniformly distributed foam holes in the foaming process, and improves the aging resistance, the air permeability, the elasticity, the softness and the supporting effect of a latex layer, so that the bionic bra is comfortable to wear. More preferably, the cross-linking agent is a mixture of dicumyl peroxide and 2, 5-dimethyl-2, 5-di-tert-butylperoxyhexane in a weight ratio of 1: 1.5-2.5.
According to the invention, azodicarbonamide, diisopropyl azodicarboxylate and p-toluenesulfonyl hydrazide are used as foaming agents, so that the foaming agent is environment-friendly and nontoxic, can be used for preparing underwear fields such as bras and the like, is harmless to human bodies, and can enable a latex material to generate fine, tiny and uniformly distributed foam holes in a foaming process by combining a foaming condition, so that the aging resistance and the tear strength of a latex layer are improved, and the durability and the washing resistance of the bionic bra are improved. More preferably, the blowing agent is a mixture of azodicarbonamide, diisopropyl azodicarboxylate, and p-toluenesulfonyl hydrazide in a weight ratio of 2.4-3.2:1: 1.0-1.5.
According to the invention, tetramethylthiuram monosulfide and/or N-cyclohexyl-2-benzothiazolyl sulfenamide are/is used as vulcanization accelerators, so that the bionic bra is environment-friendly and low in toxicity, can be used for preparing underwear fields such as bras and the like, is harmless to human bodies, can improve the vulcanization effect of the latex material, can enable the latex material to generate fine, tiny and uniformly distributed foam holes in the foaming process, improves the air permeability, elasticity, flexibility and supporting effect of the latex layer, avoids the stuffy feeling of the latex layer on the chest, and improves the wearing comfort of the bionic bra. More preferably, the vulcanization accelerator is a mixture of tetramethylthiuram monosulfide and N-cyclohexyl-2-benzothiazylsulfenamide in a weight ratio of 1:0.8 to 1.2.
Preferably, the thickener is at least one of methylcellulose, hydroxymethylcellulose and sodium hydroxyethylcellulose; the mixing ratio of the natural latex solution, the methyl methacrylate, the sodium alginate and the xanthan gum is 13.75-16:1:1: 1.78-2; the solvent is at least one of ethanol, diethyl ether, petroleum ether, acetone and isopropanol.
According to the invention, the thickening agent is adopted, so that the emulsion material has a better foaming effect, the emulsion material is endowed with better stability, permeability and plasticity, and the prepared emulsion layer has good friction resistance, high softness and good stability. More preferably, the thickening agent is a mixture of methylcellulose and sodium hydroxyethyl cellulose in a weight ratio of 1: 1.5-2.0.
The latex layer prepared from the latex material is directly acted on bra underwear and is in close contact with human skin for a long time, so that the bra underwear is environment-friendly, nontoxic and harmless to human bodies, and the latex layer can have better foaming effect, stability, permeability and plasticity by strictly controlling the mixing ratio of natural latex solution, methyl methacrylate, sodium alginate and xanthan gum, can generate fine and fine tiny foam holes in the foaming process of the latex material, has better stability, aging resistance, friction resistance, softness and other properties, can have certain viscosity, can be in a better melting state at high temperature, is easy to be pressed with an upright cotton layer, and improves the interlaminar stability of cups.
The solvent of the invention can be mixed with other raw materials for reaction and synergistic effect, improves the compatibility of each raw material of the latex material system, can be removed to the maximum extent by the steps of cooking, drying and the like in the process of preparing the latex layer, and is harmless to human bodies in the field of bra underwear.
Preferably, the preparation method of the first latex layer and the second latex layer comprises the following steps:
A. adding methyl methacrylate, zinc oxide, zinc stearate and a cross-linking agent into a natural latex solution according to the parts by weight, stirring for 15-20min at 20-25 ℃, then gradually adding sodium alginate, xanthan gum, a vulcanization accelerator and a solvent, stirring for 10-20min at 25-28 ℃, finally adding a foaming agent and a thickening agent, and uniformly stirring to obtain a mixture;
B. adding air into the mixture obtained in the step A under the conditions of 2-4 atmospheric pressures and 15-25 ℃, stirring, foaming, injecting the foamed mixture into a forming mold, and steaming at 105-125 ℃ to obtain a primary latex product;
C. and D, dehydrating and drying the primary latex product prepared in the step B to obtain a latex layer.
The performances of tear resistance, water washing resistance, aging resistance and the like of the natural latex can not meet the current market demand, so that the cross-linking reaction of the natural latex solution and the methyl methacrylate can be promoted by adding the methyl methacrylate, the zinc oxide, the zinc stearate and the cross-linking agent firstly and strictly controlling the mixing and stirring temperature and time, the cross-linking density and the foaming effect of the latex material are improved, the prepared latex layer has better elasticity, aging resistance, wear resistance and tearing resistance, and the water washing resistance and the durability of the bionic bra comprising the latex layer are improved; then adding sodium alginate, xanthan gum, vulcanization accelerator and solvent, strictly controlling the mixing and stirring temperature and time, improving the dispersibility, emulsibility and stability of a latex material crosslinking reaction system, uniformly dispersing the latex material, improving the foaming effect, enabling the prepared latex layer to be in a better molten state at high temperature, being easy to be pressed with an upright cotton layer, improving the interlayer stability of the cup, and enabling the prepared latex layer to have better friction resistance, softness and stability through vulcanization treatment; and finally, adding a foaming agent and a thickening agent to fully foam the latex material system to generate fine and small foam holes, so that the latex layer has better air permeability, flexibility and elasticity, and the tear resistance, the friction resistance and the aging resistance of the latex layer are improved.
In addition, the preparation method of the latex layer is simple to operate, stable in production quality and high in production efficiency, and by strictly controlling the foaming condition and the steaming condition, the latex material system can be fully foamed to generate fine, tiny and uniformly distributed foam holes, so that the latex layer with fine and smooth air holes is prepared, and the elasticity, the softness and the air permeability of the bionic bra are improved.
The other purpose of the invention is realized by the following technical scheme: a preparation method of a bionic bra with natural sterilization, health care and breast protection functions comprises the following preparation steps:
step (1): taking a piece of latex cotton material, performing compression molding and preforming to obtain a first latex layer, wherein the compression molding temperature is 160 ℃, the compression molding pressure is 4-6 atmospheric pressures, and the compression molding time is 110-130 s;
step (2): taking a vertical cotton material, carrying out die pressing and preforming, and forming a hand-push area by die pressing to obtain a planar vertical cotton layer;
and (3): taking the latex net layer, the other latex cotton material and the upright cotton layer obtained in the step (2), sequentially overlapping the upright cotton layer, the latex net layer and the latex cotton material, and performing compression molding to obtain a composite layer, wherein the compression molding temperature is 140-;
and (4): performing hot-pressing on the inner surface of the first latex layer in the step (1) and the outer surface of the upright cotton layer of the composite layer in the step (3) to obtain a bra cup prototype, wherein the hot-pressing temperature is 140-;
and (5): cooling and die-pressing the cup prototypes obtained in the step (4) for molding, wherein the die-pressing temperature is 5-15 ℃, the die-pressing pressure is 4-6 atmospheric pressures, and the die-pressing time is 50-60s, and then cutting to obtain the cups;
and (6): and (5) sewing the cups obtained in the step (5) to obtain cup parts, and sewing the cup parts with the back surrounding parts and the shoulder straps to obtain the bionic bra.
The natural latex comprises 44-70% of water, 24-42% of rubber component, 2-5% of natural resin component and 0.2-4.5% of protein component, wherein the rubber component and the protein component can inhibit bacteria, germs and the front breadth of allergen to achieve the natural antibacterial effect, but if the natural latex is heated at high temperature for many times, the structure of the natural latex and the structural components of rubber and protein are easily damaged, and the comprehensive performances of the natural latex, such as antibacterial property, fatigue resistance, elasticity, flexibility and the like, are reduced, so that the natural latex is easy to have larger hardness, lower comfortable feeling, easy tearing and lower service life, and the processing conditions of the natural latex are strictly controlled.
The natural latex is vulcanized, foamed and the like by adopting non-toxic and low-toxicity raw materials, so that the comprehensive properties of the latex layer, such as friction resistance, tear resistance, durability, air permeability, elasticity, softness, stability and the like, are improved; then the first latex layer is subjected to die pressing, in addition, the upright cotton layer, the rubber net layer and the second latex layer are subjected to die pressing, the outer surfaces of the upright cotton layer, the rubber net layer and the second latex layer are in a molten state by strictly controlling the die pressing temperature, pressure and time of the composite layer, wherein the second latex layer is in a semi-molten state after being heated, has better viscosity and is easy to be bonded with the rubber net layer and subjected to die pressing forming, and the upright cotton layer and the second latex layer can be stably attached to the rubber net layer for die pressing, so that the interlaminar stability of the composite layer is improved, and delamination is not easy; the first latex layer is in a semi-molten state after being heated, has better viscosity and can be stably bonded with the vertical cotton layer with the surface in a molten state, so that a glue layer containing volatile harmful substances is not required to be coated between the first latex layer and the vertical cotton layer to realize bonding, the natural environmental protection performance of the bra cup is improved, and the bra cup is harmless to human bodies and can be used in the field of skin-friendly materials such as bra underwear and the like.
If the first latex layer, the upright cotton layer, the rubber net layer and the second latex layer are superposed and then are simultaneously subjected to high-temperature hot pressing, the middle upright cotton layer and the rubber net layer can be stably connected only by high temperature of more than 140-, The composite properties of durability, air permeability and the like are suitable for the skin-friendly field of bra underwear and the like.
The preparation method of the bionic bra is simple to operate, stable in production quality and high in production efficiency, and is suitable for large-scale production, and the prepared bionic bra has good antibacterial property, elasticity, flexibility, stability, friction resistance, tear resistance, durability, air permeability and other properties.
The invention has the beneficial effects that: the bionic bra adopts the natural latex as the latex layer, is natural and harmless, has better antibacterial, acarid-inhibiting and deodorizing effects, improves the antibacterial and deodorizing performances of the bra, and has high elasticity, high softness, high skin-friendly degree, strong air permeability, similar texture to human skin and good bionic effect; and the vertical cotton layer of adoption has improved the gas permeability of brassiere, and the rubber net layer of adoption has improved the support design effect of brassiere, and non-deformable is worn many times, and the durability is good, and the hand push district that sets up has improved the support of brassiere and has gathered together the effect, and the practicality is high.
The preparation method of the bionic bra is simple to operate, stable in production quality, high in production efficiency and suitable for large-scale production, the composite layer is subjected to compression molding treatment, the upright cotton layer and the second latex layer are respectively connected and stabilized with the rubber net layer and then are subjected to hot pressing with the first latex layer, damage of overhigh temperature to components and structures of natural latex is avoided, and the prepared bionic bra has better antibacterial property, elasticity, flexibility, stability, friction resistance, tear resistance, durability, air permeability and other properties.
Drawings
FIG. 1 is a schematic view of the configuration of the inner surface of the cup portion of the present invention;
FIG. 2 is a schematic view of the structure of the cup of the present invention;
fig. 3 is an exploded view of the cup of the present invention.
The reference signs are: 1-cup part, 11-heart, 12-cup, 121-first latex layer, 122-upright cotton layer, 123-latex layer, 124-second latex layer, 125-hand-push area, 1251-hand-push piece.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings 1 to 3, and the content of the embodiments is not intended to limit the present invention.
Example 1
Referring to fig. 1-3, a bionic bra with natural sterilization, health care and breast protection functions comprises a cup portion 1, wherein the cup portion 1 comprises a chicken heart 11 and cups 12 symmetrically connected to two sides of the chicken heart 11, each cup 12 comprises a first latex layer 121, an upright cotton layer 122 and a second latex layer 124 which are sequentially arranged from outside to inside, a latex layer 123 is arranged between the upright cotton layer 122 and the second latex layer 124, the latex layer 123 is arranged on one side close to the chicken heart 11, and a hand-pushing area 125 is convexly arranged on one side, far away from the chicken heart 11, of the upright cotton layer 122.
The area of the mesh layer 123 is 1/4 to 3/5 of the area of the cup 12.
The thickness of the first latex layer 121 and the second latex layer 124 are both 1.5-5 mm.
The hand push area 125 includes a plurality of hand push pieces 1251, the hand push pieces 1251 are arranged in a radial shape from top to bottom in sequence with the heart 11 as a center.
Example 2
This example differs from example 1 in that:
the silica gel layer 123 is the silica gel layer 123, the thickness of the silica gel layer 123 is 1-3mm, and the mesh density of the silica gel layer 123 is 18-40/cm2。
The first latex layer 121 and the second latex layer 124 are both provided with a plurality of air holes penetrating through the inner surface and the outer surface of the latex layer, the diameter of each air hole is 0.15-0.95mm, and the distribution density of the air holes is 75-135/dm2。
The volume of the plurality of the hand-push pieces 1251 is increased from top to bottom in sequence.
The height of the hand-push area 125 is 0.5-3.2 mm.
Example 3
This example differs from example 1 or example 2 in that:
the first latex layer 121 and the second latex layer 124 both comprise the following raw materials in parts by weight:
the cross-linking agent is dicumyl peroxide; the foaming agent is diisopropyl azodicarboxylate; the vulcanization accelerator is tetramethylthiuram monosulfide.
The thickening agent is methyl cellulose; the mixing ratio of the natural latex solution to the methyl methacrylate to the sodium alginate to the xanthan gum is 16:1:1: 2; the solvent is ethanol.
The preparation method of the first latex layer 121 and the second latex layer 124 comprises the following steps:
A. adding methyl methacrylate, zinc oxide, zinc stearate and a cross-linking agent into a natural latex solution according to the parts by weight, stirring for 20min at 20 ℃, then gradually adding sodium alginate, xanthan gum, a vulcanization accelerator and a solvent, stirring for 20min at 25 ℃, finally adding a foaming agent and a thickening agent, and uniformly stirring to obtain a mixture;
B. adding air into the mixture obtained in the step A under the conditions of 2 atmospheric pressures and 25 ℃, stirring, foaming, injecting the foamed mixture into a forming die, and steaming at 105 ℃ to obtain a primary latex product;
C. and D, dehydrating and drying the primary latex product prepared in the step B to obtain a latex layer.
Example 4
This example differs from example 1 or example 2 in that:
the first latex layer 121 and the second latex layer 124 both comprise the following raw materials in parts by weight:
the cross-linking agent is dicumyl peroxide; the foaming agent is p-toluenesulfonyl hydrazide; the vulcanization accelerator is tetramethylthiuram monosulfide.
The thickening agent is hydroxymethyl cellulose; the mixing ratio of the natural latex solution to the methyl methacrylate to the sodium alginate to the xanthan gum is 15:1:1: 1.9; the solvent is diethyl ether.
The preparation method of the first latex layer 121 and the second latex layer 124 comprises the following steps:
A. adding methyl methacrylate, zinc oxide, zinc stearate and a cross-linking agent into a natural latex solution according to the parts by weight, stirring for 19min at 21 ℃, then gradually adding sodium alginate, xanthan gum, a vulcanization accelerator and a solvent, stirring for 18min at 25.8 ℃, finally adding a foaming agent and a thickening agent, and uniformly stirring to obtain a mixture;
B. adding air into the mixture obtained in the step A under the conditions of 2.5 atmospheric pressure and 23 ℃, stirring, foaming, injecting the foamed mixture into a forming die, and steaming at 110 ℃ to obtain a primary latex product;
C. and D, dehydrating and drying the primary latex product prepared in the step B to obtain a latex layer.
Example 5
This example differs from example 1 or example 2 in that:
the first latex layer 121 and the second latex layer 124 both comprise the following raw materials in parts by weight:
the cross-linking agent is dicumyl peroxide; the foaming agent is azodicarbonamide; the vulcanization accelerator is tetramethylthiuram monosulfide.
The thickening agent is hydroxyethyl cellulose sodium; the mixing ratio of the natural latex solution to the methyl methacrylate to the sodium alginate to the xanthan gum is 14.6:1:1: 1.85; the solvent is acetone.
The preparation method of the first latex layer 121 and the second latex layer 124 comprises the following steps:
A. adding methyl methacrylate, zinc oxide, zinc stearate and a cross-linking agent into a natural latex solution according to the parts by weight, stirring for 18min at 22 ℃, then gradually adding sodium alginate, xanthan gum, a vulcanization accelerator and a solvent, stirring for 15min at 26.5 ℃, finally adding a foaming agent and a thickening agent, and uniformly stirring to obtain a mixture;
B. adding air into the mixture obtained in the step A under the conditions of 3 atmospheric pressures and 20 ℃, stirring, foaming, injecting the foamed mixture into a forming die, and steaming at 115 ℃ to obtain a primary latex product;
C. and D, dehydrating and drying the primary latex product prepared in the step B to obtain a latex layer.
Example 6
This example differs from example 1 or example 2 in that:
the first latex layer 121 and the second latex layer 124 both comprise the following raw materials in parts by weight:
the cross-linking agent is 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide; the foaming agent is diisopropyl azodicarboxylate; the vulcanization accelerator is N-cyclohexyl-2-benzothiazyl sulfenamide.
The thickening agent is hydroxymethyl cellulose; the mixing ratio of the natural latex solution to the methyl methacrylate to the sodium alginate to the xanthan gum is 14:1:1: 1.78; the solvent is petroleum ether.
The preparation method of the first latex layer 121 and the second latex layer 124 comprises the following steps:
A. adding methyl methacrylate, zinc oxide, zinc stearate and a cross-linking agent into a natural latex solution according to the parts by weight, stirring for 16min at 23 ℃, then gradually adding sodium alginate, xanthan gum, a vulcanization accelerator and a solvent, stirring for 12min at 27.2 ℃, finally adding a foaming agent and a thickening agent, and uniformly stirring to obtain a mixture;
B. adding air into the mixture obtained in the step A under the conditions of 3.5 atmospheric pressure and 18 ℃, stirring, foaming, injecting the foamed mixture into a forming die, and steaming at 120 ℃ to obtain a primary latex product;
C. and D, dehydrating and drying the primary latex product prepared in the step B to obtain a latex layer.
Example 7
This example differs from example 1 or example 2 in that:
the first latex layer 121 and the second latex layer 124 both comprise the following raw materials in parts by weight:
the cross-linking agent is 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide; the foaming agent is p-toluenesulfonyl hydrazide; the vulcanization accelerator is N-cyclohexyl-2-benzothiazyl sulfenamide.
The thickening agent is hydroxyethyl cellulose sodium; the mixing ratio of the natural latex solution to the methyl methacrylate to the sodium alginate to the xanthan gum is 13.75:1:1: 1.86; the solvent is isopropanol.
The preparation method of the first latex layer 121 and the second latex layer 124 comprises the following steps:
A. adding methyl methacrylate, zinc oxide, zinc stearate and a cross-linking agent into a natural latex solution according to the parts by weight, stirring for 15min at 25 ℃, then gradually adding sodium alginate, xanthan gum, a vulcanization accelerator and a solvent, stirring for 10min at 28 ℃, finally adding a foaming agent and a thickening agent, and uniformly stirring to obtain a mixture;
B. adding air into the mixture obtained in the step A under the conditions of 4 atmospheric pressures and 15 ℃, stirring, foaming, injecting the foamed mixture into a forming die, and steaming at 125 ℃ to obtain a primary latex product;
C. and D, dehydrating and drying the primary latex product prepared in the step B to obtain a latex layer.
Example 8
This example differs from example 3 in that:
the cross-linking agent is a mixture of dicumyl peroxide and 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide in a weight ratio of 1: 1.5.
The foaming agent is a mixture of azodicarbonamide, diisopropyl azodicarboxylate and p-toluenesulfonyl hydrazide in a weight ratio of 3.2:1: 1.0.
The vulcanization accelerator is a mixture of tetramethylthiuram monosulfide and N-cyclohexyl-2-benzothiazyl sulfenamide in a weight ratio of 1: 1.2.
The thickening agent is a mixture of methylcellulose and sodium hydroxyethyl cellulose in a weight ratio of 1: 1.5.
Example 9
This example differs from example 4 in that:
the cross-linking agent is a mixture of dicumyl peroxide and 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide in a weight ratio of 1: 1.8.
The foaming agent is a mixture of azodicarbonamide, diisopropyl azodicarboxylate and p-toluenesulfonyl hydrazide in a weight ratio of 3:1: 1.1.
The vulcanization accelerator is a mixture of tetramethylthiuram monosulfide and N-cyclohexyl-2-benzothiazyl sulfenamide in a weight ratio of 1: 1.1.
The thickening agent is a mixture of methylcellulose and hydroxyethyl cellulose in a weight ratio of 1: 1.6.
Example 10
This example differs from example 5 in that:
the cross-linking agent is a mixture of dicumyl peroxide and 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide in a weight ratio of 1:2.
The foaming agent is a mixture of azodicarbonamide, diisopropyl azodicarboxylate and p-toluenesulfonyl hydrazide in a weight ratio of 2.8:1: 1.2.
The vulcanization accelerator is a mixture of tetramethylthiuram monosulfide and N-cyclohexyl-2-benzothiazyl sulfenamide in a weight ratio of 1: 1.0.
The thickening agent is a mixture of methylcellulose and sodium hydroxyethyl cellulose in a weight ratio of 1: 1.8.
Example 11
This example differs from example 6 in that:
the cross-linking agent is a mixture of dicumyl peroxide and 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide in a weight ratio of 1: 2.3.
The foaming agent is a mixture of azodicarbonamide, diisopropyl azodicarboxylate and p-toluenesulfonyl hydrazide in a weight ratio of 2.6:1: 1.3.
The vulcanization accelerator is a mixture of tetramethylthiuram monosulfide and N-cyclohexyl-2-benzothiazyl sulfenamide in a weight ratio of 1: 0.9.
The thickening agent is a mixture of methylcellulose and sodium hydroxyethyl cellulose in a weight ratio of 1: 1.9.
Example 12
This example differs from example 7 in that:
the cross-linking agent is a mixture of dicumyl peroxide and 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide in a weight ratio of 1: 2.5.
The foaming agent is a mixture of azodicarbonamide, diisopropyl azodicarboxylate and p-toluenesulfonyl hydrazide in a weight ratio of 2.4:1: 1.5.
The vulcanization accelerator is a mixture of tetramethylthiuram monosulfide and N-cyclohexyl-2-benzothiazyl sulfenamide in a weight ratio of 1: 0.8.
The thickening agent is a mixture of methylcellulose and sodium hydroxyethyl cellulose in a weight ratio of 1: 2.0.
Example 13
A preparation method of a bionic bra with natural sterilization, health care and breast protection functions comprises the following preparation steps:
step (1): taking a piece of latex cotton material, performing compression molding and preforming to obtain a first latex layer 121, wherein the compression molding temperature is 140 ℃, the compression molding pressure is 6 atmospheric pressures, and the compression molding time is 110 s;
step (2): taking a piece of upright cotton material, performing compression molding and preforming, and pressing out a hand-push area 125 to obtain a planar upright cotton layer 122;
and (3): taking the rubber net layer 123, the other latex cotton material and the upright cotton layer 122 obtained in the step (2), sequentially overlapping the upright cotton layer 122, the rubber net layer 123 and the latex cotton material, performing compression molding and preforming to obtain a composite layer, wherein the compression molding temperature is 140 ℃, the compression molding pressure is 6 atmospheres, and the compression molding time is 190 s;
and (4): carrying out hot pressing on the inner surface of the first latex layer 121 in the step (1) and the outer surface of the upright cotton layer 122 of the composite layer in the step (3) to obtain a prototype of the bra cup 12, wherein the hot pressing temperature is 140 ℃, the pressing pressure is 6 atmospheric pressures, and the pressing time is 100 s;
and (5): cooling and compression molding the prototype cup 12 obtained in the step (4), wherein the compression molding temperature is 5 ℃, the compression molding pressure is 6 atmospheric pressures, the compression molding time is 50s, and then the prototype cup 12 is obtained after cutting;
and (6): and (4) sewing the cups 12 obtained in the step (5) to obtain cup parts 1, and sewing the cup parts with the back girth parts and the shoulder straps to obtain the bionic bra.
Example 14
This example differs from example 13 in that:
a preparation method of a bionic bra with natural sterilization, health care and breast protection functions comprises the following preparation steps:
step (1): taking a piece of latex cotton material, performing compression molding and preforming to obtain a first latex layer 121, wherein the compression molding temperature is 145 ℃, the compression molding pressure is 5.5 atmospheric pressures, and the compression molding time is 115 s;
step (2): taking a piece of upright cotton material, performing compression molding and preforming, and pressing out a hand-push area 125 to obtain a planar upright cotton layer 122;
and (3): taking the rubber net layer 123, the other latex cotton material and the upright cotton layer 122 obtained in the step (2), sequentially overlapping the upright cotton layer 122, the rubber net layer 123 and the latex cotton material, performing compression molding and preforming to obtain a composite layer, wherein the compression molding temperature is 145 ℃, the compression molding pressure is 5.5 atmospheres, and the compression molding time is 195 s;
and (4): carrying out hot pressing on the inner surface of the first latex layer 121 in the step (1) and the outer surface of the upright cotton layer 122 of the composite layer in the step (3) to obtain a prototype of the bra cup 12, wherein the hot pressing temperature is 145 ℃, the pressing pressure is 5.5 atmospheres, and the pressing time is 110 s;
and (5): cooling and die-pressing the prototype cup 12 obtained in the step (4) for molding, wherein the die-pressing temperature is 8 ℃, the die-pressing pressure is 5.5 atmospheric pressures, the die-pressing time is 52s, and then the prototype cup 12 is obtained after cutting;
and (6): and (4) sewing the cups 12 obtained in the step (5) to obtain cup parts 1, and sewing the cup parts with the back girth parts and the shoulder straps to obtain the bionic bra.
Example 15
This example differs from example 13 in that:
a preparation method of a bionic bra with natural sterilization, health care and breast protection functions comprises the following preparation steps:
step (1): taking a piece of latex cotton material, performing compression molding and preforming to obtain a first latex layer 121, wherein the compression molding temperature is 150 ℃, the compression molding pressure is 5 atmospheric pressures, and the compression molding time is 120 s;
step (2): taking a piece of upright cotton material, performing compression molding and preforming, and pressing out a hand-push area 125 to obtain a planar upright cotton layer 122;
and (3): taking the rubber net layer 123, the other latex cotton material and the upright cotton layer 122 obtained in the step (2), sequentially overlapping the upright cotton layer 122, the rubber net layer 123 and the latex cotton material, performing compression molding and preforming to obtain a composite layer, wherein the compression molding temperature is 150 ℃, the compression molding pressure is 5 atmospheres, and the compression molding time is 200 s;
and (4): carrying out hot pressing on the inner surface of the first latex layer 121 in the step (1) and the outer surface of the upright cotton layer 122 of the composite layer in the step (3) to obtain a prototype of the bra cup 12, wherein the hot pressing temperature is 150 ℃, the pressing pressure is 5 atmospheric pressures, and the pressing time is 120 s;
and (5): cooling and compression molding the prototype cup 12 obtained in the step (4), wherein the compression molding temperature is 10 ℃, the compression molding pressure is 5 atmospheres, the compression molding time is 55s, and then the prototype cup 12 is obtained after cutting;
and (6): and (4) sewing the cups 12 obtained in the step (5) to obtain cup parts 1, and sewing the cup parts with the back girth parts and the shoulder straps to obtain the bionic bra.
Example 16
This example differs from example 13 in that:
a preparation method of a bionic bra with natural sterilization, health care and breast protection functions comprises the following preparation steps:
step (1): taking a piece of latex cotton material, performing compression molding and preforming to obtain a first latex layer 121, wherein the compression molding temperature is 155 ℃, the compression molding pressure is 4.5 atmospheric pressures, and the compression molding time is 125 s;
step (2): taking a piece of upright cotton material, performing compression molding and preforming, and pressing out a hand-push area 125 to obtain a planar upright cotton layer 122;
and (3): taking the rubber net layer 123, the other latex cotton material and the upright cotton layer 122 obtained in the step (2), sequentially overlapping the upright cotton layer 122, the rubber net layer 123 and the latex cotton material, performing compression molding and preforming to obtain a composite layer, wherein the compression molding temperature is 155 ℃, the compression molding pressure is 4.5 atmospheres, and the compression molding time is 205 s;
and (4): carrying out hot pressing on the inner surface of the first latex layer 121 in the step (1) and the outer surface of the upright cotton layer 122 of the composite layer in the step (3) to obtain a prototype of the bra cup 12, wherein the hot pressing temperature is 155 ℃, the pressing pressure is 4.5 atmospheres, and the pressing time is 130 s;
and (5): cooling and die-pressing the prototype cup 12 obtained in the step (4) for molding, wherein the die-pressing temperature is 13 ℃, the die-pressing pressure is 4.5 atmospheres, the die-pressing time is 58s, and then the prototype cup 12 is obtained after cutting;
and (6): and (4) sewing the cups 12 obtained in the step (5) to obtain cup parts 1, and sewing the cup parts with the back girth parts and the shoulder straps to obtain the bionic bra.
Example 17
This example differs from example 13 in that:
a preparation method of a bionic bra with natural sterilization, health care and breast protection functions comprises the following preparation steps:
step (1): taking a piece of latex cotton material, performing compression molding and preforming to obtain a first latex layer 121, wherein the compression molding temperature is 160 ℃, the compression molding pressure is 4 atmospheric pressures, and the compression molding time is 130 s;
step (2): taking a piece of upright cotton material, performing compression molding and preforming, and pressing out a hand-push area 125 to obtain a planar upright cotton layer 122;
and (3): taking the rubber net layer 123, the other latex cotton material and the upright cotton layer 122 obtained in the step (2), sequentially overlapping the upright cotton layer 122, the rubber net layer 123 and the latex cotton material, performing compression molding and preforming to obtain a composite layer, wherein the compression molding temperature is 160 ℃, the compression molding pressure is 4 atmospheres, and the compression molding time is 210 s;
and (4): carrying out hot pressing on the inner surface of the first latex layer 121 in the step (1) and the outer surface of the upright cotton layer 122 of the composite layer in the step (3) to obtain a prototype of the bra cup 12, wherein the hot pressing temperature is 160 ℃, the pressing pressure is 4 atmospheres, and the pressing time is 140 s;
and (5): cooling and die-pressing the prototype cup 12 obtained in the step (4) for molding, wherein the die-pressing temperature is 15 ℃, the die-pressing pressure is 4 atmospheres, the die-pressing time is 60s, and then the prototype cup 12 is obtained after cutting;
and (6): and (4) sewing the cups 12 obtained in the step (5) to obtain cup parts 1, and sewing the cup parts with the back girth parts and the shoulder straps to obtain the bionic bra.
The bionic bra cup 12 prepared by the invention is subjected to the performance tests of tear resistance, antibacterial property, air permeability, harmful substances and the like, and the specific operation method and test results are as follows:
tear resistance test:
the bionic bra cup 12 prepared by the invention is tested for tear strength by a fabric tearing instrument, and as a result, a crack with the length of 2.3cm appears at the lower edge of the tear strength of 6380g of the bra cup 12, and the integrity of the cup 12 reaches 99.2 percent, which proves that the bra cup 12 of the invention has better tear resistance and good durability.
Testing antibacterial property:
after the bionic bra cup 12 manufactured by the invention is worn for 1-2 times, the bionic bra cup is placed in a constant temperature and humidity box with the temperature of 28-42 ℃ and the humidity of 68-88% for 3-4 days, then the bra cup 12 is taken out, and the bacteria observation and test such as ultramicro and the like are carried out on the inner surface of the cup 12 (namely the second emulsion layer 124), the result shows that the bacteria content of the inner surface of the bra cup 12 is 1.2-4.0%, which proves that the bionic bra cup 12 has better antibacterial and bacteriostatic effects by adopting the natural latex with antibacterial and mite-inhibiting effects.
Testing air permeability:
the bionic bra cup 12 manufactured by the invention is placed on the surface of an air outlet of a steam engine, the air output is 15-18cm, the air output is 11.8-13.5cm when the surface of the bra cup 12 is tested, and the air output rate is 75-80 percent, which proves that the bionic bra cup 12 has good ventilation effect.
And fourthly, water washing resistance test:
the bionic bra cup 12 manufactured by the invention is subjected to water washing test for 1000 times in 800 times, and the result is that the structure of the bra cup 12 is not deformed, the surface fiber is complete, the supporting degree is better, and the integrity reaches 98-99.5 percent, which proves that the bra cup 12 of the invention has good water washing resistance effect, and has better supporting effect after being washed for many times.
Testing volatile harmful substances:
the bionic bra cup 12 prepared by the invention is placed in an oven to be baked for 22-25 hours at the temperature of 40-45 ℃, and the testing shows that the harmful substances in the oven are zero, thus proving that the bionic bra cup 12 has better heat resistance, is environment-friendly and nontoxic, and is harmless to the health of human bodies.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (4)
1. A bionic bra with natural sterilization, health care and breast protection functions is characterized in that: the bra cup comprises a cup part, wherein the cup part comprises a chicken heart and cups symmetrically connected to two sides of the chicken heart, each cup comprises a first latex layer, an upright cotton layer and a second latex layer which are sequentially arranged from outside to inside, a rubber net layer is arranged between the upright cotton layer and the second latex layer, the rubber net layer is arranged on one side close to the chicken heart, and a hand-push area is convexly arranged on one side, far away from the chicken heart, of the upright cotton layer;
the area of the rubber mesh layer is 1/4-3/5 of the area of the cup;
the hand-push area comprises a plurality of hand-push pieces, and the hand-push pieces are arranged in sequence from top to bottom in a radial shape by taking the heart of the chicken as a center;
the first latex layer and the second latex layer both comprise the following raw materials in parts by weight:
80-110 parts of natural latex solution
5-8 parts of methyl methacrylate
5-8 parts of sodium alginate
10-15 parts of xanthan gum
3-7 parts of zinc oxide
1.5 to 3.5 portions of zinc stearate
1-3 parts of cross-linking agent
5-10 parts of foaming agent
1.5-2.5 parts of vulcanization accelerator
0.3 to 0.8 portion of thickening agent
5-15 parts of a solvent;
the cross-linking agent is dicumyl peroxide and/or 2, 5-dimethyl-2, 5-di-tert-butyl hexane peroxide; the foaming agent is at least one of azodicarbonamide, diisopropyl azodicarboxylate and p-toluenesulfonyl hydrazide; the vulcanization accelerator is tetramethyl thiuram monosulfide and/or N-cyclohexyl-2-benzothiazyl sulfenamide; the thickening agent is at least one of methyl cellulose, hydroxymethyl cellulose and hydroxyethyl cellulose sodium; the solvent is at least one of ethanol, diethyl ether, petroleum ether, acetone and isopropanol;
the first latex layer and the second latex layer are prepared by the following steps:
A. adding methyl methacrylate, zinc oxide, zinc stearate and a cross-linking agent into a natural latex solution according to the parts by weight, stirring for 15-20min at 20-25 ℃, then gradually adding sodium alginate, xanthan gum, a vulcanization accelerator and a solvent, stirring for 10-20min at 25-28 ℃, finally adding a foaming agent and a thickening agent, and uniformly stirring to obtain a mixture;
B. adding air into the mixture obtained in the step A under the conditions of 2-4 atmospheric pressures and 15-25 ℃, stirring, foaming, injecting the foamed mixture into a forming mold, and steaming at 105-125 ℃ to obtain a primary latex product;
C. b, dehydrating and drying the primary latex product prepared in the step B to obtain a latex cotton material;
the bionic bra with the natural sterilization, health care and breast protection functions is prepared by the following steps:
step (1): taking a piece of latex cotton material, performing compression molding and preforming to obtain a first latex layer, wherein the compression molding temperature is 160 ℃, the compression molding pressure is 4-6 atmospheric pressures, and the compression molding time is 110-130 s;
step (2): taking a vertical cotton material, carrying out die pressing and preforming, and forming a hand-push area by die pressing to obtain a planar vertical cotton layer;
and (3): taking the latex net layer, the other latex cotton material and the upright cotton layer obtained in the step (2), sequentially overlapping the upright cotton layer, the latex net layer and the latex cotton material, and performing compression molding to obtain a composite layer, wherein the compression molding temperature is 140-;
and (4): performing hot-pressing on the inner surface of the first latex layer in the step (1) and the outer surface of the upright cotton layer of the composite layer in the step (3) to obtain a bra cup prototype, wherein the hot-pressing temperature is 140-;
and (5): cooling and die-pressing the cup prototypes obtained in the step (4) for molding, wherein the die-pressing temperature is 5-15 ℃, the die-pressing pressure is 4-6 atmospheric pressures, and the die-pressing time is 50-60s, and then cutting to obtain the cups;
and (6): and (5) sewing the cups obtained in the step (5) to obtain cup parts, and sewing the cup parts with the back surrounding parts and the shoulder straps to obtain the bionic bra.
2. The bionic bra according to claim 1, which is characterized in that: the thickness of the first latex layer and the second latex layer is 1.5-5mm, the thickness of the rubber net layer is 1-3mm, and the mesh density of the rubber net layer is 18-40/cm2。
3. The bionic bra according to claim 1, which is characterized in that: the first latex layer and the second latex layer are both provided with a plurality of air holes penetrating through the inner surface and the outer surface of the latex layer, the diameter of each air hole is 0.15-0.95mm, and the distribution density of the air holes is 75-135/dm2。
4. The bionic bra according to claim 1, which is characterized in that: the mixing ratio of the natural latex solution, the methyl methacrylate, the sodium alginate and the xanthan gum is 13.75-16:1:1: 1.78-2.
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| CN109880191A (en) * | 2019-02-20 | 2019-06-14 | 四川汉莫尼机械设备有限公司 | A kind of integrated molding natural emulsion cup and preparation method thereof |
| CN110432560A (en) * | 2019-06-14 | 2019-11-12 | 黄湾湾 | Moulding Poromeric bra |
| CN112971226A (en) * | 2019-12-02 | 2021-06-18 | 苏州美山子制衣有限公司 | Mold cup with large cup and preparation method thereof |
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