1184 results about "Sanitary napkin" patented technology

The utility model provides a sanitary napkin reverse osmosis detection device, which relates to the technical field of sanitary napkin detection and comprises a bottom plate, vertical columns are fixedly connected to corners of the top of the bottom plate, a top plate is fixedly connected among the upper end faces of the plurality of vertical columns, an electric push rod is fixedly connected to the bottom of the top plate, and a placing box is fixedly connected to the top of the bottom plate. When the sanitary napkin is subjected to reverse osmosis detection, under the condition that the sanitary napkin is pressed, if the sanitary napkin absorbs liquid, the liquid reversely permeates back to the surface layer, the liquid overflows to the position of the upper layer of the pressing plate through the valves, at the moment, the liquid at the reverse osmosis position of the sanitary napkin is collected to the position of the inner side of the frame, and the liquid sensor is used for detecting the reverse osmosis of the sanitary napkin. According to the sanitary napkin reverse osmosis detection device, the reverse osmosis amount of a sanitary napkin can be automatically measured, and the purposes of automatically spraying liquid to the sanitary napkin, applying pressure to the sanitary napkin and detecting the specific reverse osmosis amount are achieved through cooperative operation of the infusion pump, the electric push rod and the liquid sensor.

The present invention relates to the field of sanitary products, and discloses an absorbent core and its application, including a central absorbent area and a peripheral absorbent area, wherein the peripheral absorbent area is arranged around the central absorbent area, the vertical height of the central absorbent area is lower than that of the peripheral absorbent area, and both areas are provided with a plurality of holes in the height direction. The present invention enables the absorbent core of the sanitary napkin to form a concave structure that is flat on the outside and sunken on the inside as a whole, thereby creating a larger volume of menstrual blood storage and absorption space; and the holes in the central absorbent area and the peripheral absorbent area show a change in diameter from the height direction, starting from the actual situation, while increasing the absorption rate and reducing the upward reverse osmosis of menstrual blood, it also ensures the comfort of the user.

The invention discloses a probiotic fiber non-woven fabric, a preparation method thereof and a probiotic hygienic product, and relates to the technical field of hygienic products. The water-soluble protective agent coated probiotics are added into the first oil agent and / or the second oil agent adopted for oiling, so that the probiotics can be uniformly dispersed on the non-woven fabric, meanwhile, the water-soluble protective agent can avoid failure caused by early release of the probiotics, and due to the fact that the hydrophilicity of the water-soluble protective agent is better, the water-soluble protective agent can be used for oiling the non-woven fabric. Hygienic products such as sanitary towels made of the non-woven fabric are more beneficial to release of probiotics in the use process, and the release efficiency of the probiotics is improved. Meanwhile, the water-soluble protective agent can help the probiotics to be uniformly distributed on the surface of the sanitary towel after being dissolved, so that the effect of enough probiotics can be exerted in the using area of the whole sanitary towel, the situation that the concentration of local probiotics is too high or too low is avoided, and the health problem of the private part of the female is effectively prevented and improved.

The invention relates to the technical field of hygienic products, and provides a skin-friendly sanitary napkin structure and a production and preparation technology thereof.The skin-friendly sanitary napkin structure comprises a hot air non-woven fabric layer, an absorption core layer and a breathable water-repellent bottom which are sequentially arranged from the side close to the skin to the outside; the absorption core layer comprises an anti-reverse osmosis membrane, a first absorption core, a second absorption core and a non-woven fabric wrapping layer which are sequentially arranged from the near-skin side to the outside, a plurality of flow guide grooves are formed in the first absorption core in a penetrating mode, and drainage parts extending towards the side edge of the first absorption core are locally arranged on the flow guide grooves; the first absorption core and the non-woven fabric wrapping layer are bonded and fixed through an ultrasonic composite technology to form a first bonding area, and the first bonding area is located on the side edge of the absorption core layer and the position of the flow guide groove; and at the moment, the first absorption core and the second absorption core are freely propped against each other. On the basis, the sanitary napkin can keep enough absorbing capacity and is durable while the dry, comfortable, breathable and skin-friendly instant absorbing effects of the sanitary napkin are considered, and the use experience of women is optimized.

The invention relates to the technical field of hygienic product manufacturing, and discloses a sanitary napkin core body based on a nano material, functional particles are accurately positioned through flow field directional regulation and control of fiber three-dimensional orientation distribution, pulsed electric field activation free radical gradient polymerization and supercritical CO2 deposition, a surface micropore compact water locking layer with the aperture of 5-20 microns is constructed, and an inner macropore flow guide layer is formed. The pore diameter is 80-150 microns, and a cross-scale synergistic structure is formed. Self-reconstruction of the fiber is excited by sudden change of the flow field rotating speed, and mutual exclusion limitation of the absorption rate and the liquid retention amount of a traditional homogeneous structure is broken through in combination with diffusion kinetics of a terahertz wave resonance reinforced cross-linking agent; a C-O-Ag chemical anchoring point is established by a plasma bonding technology, and the nano-silver particles are physically confined by a graphene oxide sheet layer, so that the problems of particle agglomeration and ion burst release in a traditional spraying process are solved. The dynamic multi-field synergistic process realizes porosity gradient, oriented arrangement of molecular chains and long-acting residence of functional particles, and provides a core solution with high absorptivity, zero reverse osmosis and long-acting bacteriostasis for hygienic products.

The invention relates to the field of communication technologies and health care materials, and discloses an intelligent sanitary towel and system based on the 4G / 5G Internet of Things. The graphene sensor module is arranged in the sanitary towel main body and is used for detecting the discharge condition of menstrual blood; the temperature acquisition module and the heart rate acquisition module are respectively used for detecting the body temperature and the heart rate of the user; and the data acquisition module is connected with the graphene sensor module, the temperature acquisition module and the heart rate acquisition module and is used for receiving and sorting detection data of the sensor module. Through cooperative work of the graphene sensor module, the temperature acquisition module and the heart rate acquisition module, key health data (including menstrual blood flow, body temperature and heart rate) in the female physiological cycle can be acquired in real time, and the data are quickly transmitted to the Internet of Things platform and the AI algorithm platform through arrangement of the data acquisition module and efficient transmission of the 4G / 5G communication module.

The invention discloses an antibacterial sanitary towel packaging bag and a preparation method thereof. The antibacterial sanitary towel packaging bag comprises a base material layer, an antibacterial layer and a leakage-proof layer. The base material layer is prepared by blending modified polylactic acid, polybutylene adipate and the like and contains a degradation accelerant; the antibacterial layer contains antibacterial peptide-loaded nano montmorillonite, chitosan and the like, and loofah sponge fiber enhances slow release; and the leakage-proof layer is an ethylene-vinyl acetate copolymer and modified silicon dioxide blended film and is provided with breathable micropores. The preparation method comprises the steps of forming the base material layer, coating the antibacterial layer and the like, and process parameters of each layer are accurately controlled. According to the packaging bag, through cooperation of three layers, the bacteriostasis rate of the packaging bag on escherichia coli and staphylococcus aureus in 24 hours is higher than 99%, the degradation rate of the packaging bag in 83 days is higher than 88%, the oxygen permeability is 4.5-5.2 cm < 3 > / (m224h 0.1 MPa), and the packaging bag has the advantages of long-acting antibiosis, air permeability, leakage prevention, environmental protection, degradation and good mechanical properties, and meets the storage and use requirements of sanitary napkins.

The invention belongs to the technical field of daily necessities, and particularly relates to a high-absorption side-leakage-preventing 3D liquid sanitary towel and a preparation method thereof. A high-absorption side-leakage-prevention 3D liquid sanitary towel sequentially comprises a surface layer, an absorption layer and a leakage-prevention layer from top to bottom. The preparation method of the absorption layer comprises the following steps: (1) introducing a first oil phase, a water phase A and a water phase B into a first continuous emulsification device to obtain a first emulsion; (2) introducing the second oil phase, the water phase C and the water phase D into a second continuous emulsification device to obtain a second emulsion; and (3) coating the upper surface of a non-woven fabric with the first emulsion, coating the lower surface of the non-woven fabric with the second emulsion, performing illumination and steam treatment, and then performing dehydration and drying to obtain the absorption layer. The absorption layer of the liquid sanitary towel is high in flow conductivity and liquid absorption capacity, and the absorption capacity and the side leakage prevention capacity of the liquid sanitary towel are improved.

The invention discloses a preparation method and application of a degradable poly (p-dioxanone) melt-blown non-woven material, the melt-blown non-woven material takes poly (p-dioxanone) as a raw material, the poly (p-dioxanone) is extruded by a spinneret plate after being heated and melted by a twin-screw extruder, and is drawn at a high speed in hot air flow to form fibers, and then the fibers are self-bonded to form a net and collected by a receiving device to obtain the degradable poly (p-dioxanone) melt-blown non-woven material. The melt-blown non-woven material has good performance effects on mechanical strength, biodegradability, filtering performance, air permeability, humidity resistance and chemical stability, so that the melt-blown non-woven material can be widely applied to surgical dressings, wound binding materials, mask materials and protective clothing materials in the field of clinical medicine; the material can be applied to sanitary towel materials, paper diaper materials and wet tissue materials in the field of sanitary materials, plant covering materials and seed coating materials in the field of agriculture, and food fresh-keeping packaging materials in the field of food packaging.

The invention discloses a dry, comfortable, antibacterial and itching-relieving protection pad. The protection pad is formed by compounding a base layer and a surface layer, and the base layer is a non-woven fabric layer; and the surface layer is a medicine-carrying composite non-woven fabric layer. The protection pad surface layer is located above the base layer, the area of the protection pad surface layer is smaller than that of the base layer, and active ingredients extracted from radix sophorae flavescentis, cortex phellodendri, radix stemonae, cortex dictamni and golden larch bark and an antibacterial material polyhexamethylene biguanide are introduced into the skin-attaching non-woven fabric of the protection pad surface layer, so that the protection pad has the effects of resisting bacteria, relieving itching, clearing damp, expelling parasites and the like; the disposable disposable diaper is suitable for anorectal postoperative wound repair, prostate disease urine leakage, obesity and hidrosis and other field operation people, is particularly beneficial to tinea corporis and rotten crotch in special occasions, and has a good application prospect. The invention further discloses a preparation method of the protection pad.

The invention provides an alginate fiber sanitary towel and a preparation method thereof, and belongs to the technical field of nursing materials. Through the directional water-repellent design of the double-sided reverse osmosis prevention functional layer and in combination with the three-dimensional leakage-proof partition edge structure, the risks of liquid back seepage and side leakage are remarkably reduced, and the use dryness and reliability are improved; the natural antibacterial effect of the alginate fibers is utilized, efficient peculiar smell control is achieved, irritation of traditional chemical bacteriostatic agents to the skin is avoided, and biological safety is guaranteed; the core material adopts alginate fiber renewable resources, the characteristics of high water absorption and degradability of the alginate fiber absorber are combined, the environmental protection sustainability of the product is enhanced, the common problems of reverse osmosis, side leakage, dependence on chemical addition and the like of the sanitary towel are solved, meanwhile, the unification of the protection performance, the health attribute and the sustainability is achieved through material and structure innovation, and the sanitary towel is suitable for being used for sanitary napkins. And a technical normal form capable of being flexibly expanded is provided for the industry.

The utility model discloses a drying and sterilizing device for sanitary towel production, which comprises a sterilizing box, an air blowing plate is arranged on the left side of an inner cavity of the sterilizing box, a heating box is arranged on the left side of the sterilizing box, and a coil pipe is arranged in an inner cavity of the heating box. According to the drying and disinfecting device for sanitary towel production, the disinfecting box, the air blowing plate, the heating box, the coil pipe, the fan, the electric heating plate, a base plate, a sliding groove, a sliding block, a bottom plate, a supporting frame, a top plate, a vertical plate, an ultraviolet sterilizing lamp, a side plate, a motor, a movable rod and a containing disc are used in cooperation, so that the drying and disinfecting device for sanitary towel production has the advantage of being high in drying and disinfecting efficiency; the problems that an existing drying and disinfecting device for sanitary napkin production does not have a rotating function, and sanitary napkins can only be passively dried and disinfected in a static state when being dried and disinfected in the device, so that the drying and disinfecting time is prolonged, the drying and disinfecting efficiency is very low, and the working requirements of sanitary napkin production cannot be met are solved.

The invention relates to a bacteriostatic non-woven fabric. The effective bacteriostatic component of the bacteriostatic non-woven fabric is breast milk oligosaccharide. The antibacterial non-woven fabric provided by the invention is safe and mild, has a good antibacterial effect, and can promote the health balance of skin micro-ecology and reduce skin problems caused by bacterium breeding while inhibiting the growth of harmful microorganisms. In addition, as a natural component, the breast milk oligosaccharide is mild in property, so that the safety and comfort of the product when the product is in contact with skin for a long time are ensured. The antibacterial non-woven fabric produced according to the preparation method is suitable for various disposable hygienic products, such as paper diapers, sanitary towels, panty liners and other personal care products, and can provide higher-level health protection and comfortable experience for consumers.

The invention relates to the field of functional materials, and discloses a high-absorptivity sanitary napkin core material which is prepared from the following components in parts by mass: 30-35 parts of spiral nano cellulose; 20 to 25 parts by mass of a polyglutamic acid-polylysine grafted copolymer; 0.5 to 1.5 parts by mass of a thiodipropionic acid cross-linking agent; the helical angle of the helical nanocellulose is 25-35 degrees, the diameter of the helical nanocellulose is 5-10 nm, the specific surface area of the helical nanocellulose is greater than or equal to 300 m < 2 > / g, in the polyglutamic acid-polylysine grafted copolymer, the grafting rate of polylysine is 15-25%, the molecular weight of the polylysine is 3-5 kDa, the particle size of the nano-zinc oxide is 20-30 nm, the surface of the nano-zinc oxide is subjected to hydroxylation modification, and the surface of the nano-zinc oxide is 20-30 nm. The nano zinc oxide and the spiral nano cellulose are combined through a hydrogen bond and Van der Waals force, and the combination energy is greater than or equal to 25kJ / mol. By adopting the spiral angle and gradient pore design of the spiral nanocellulose, the technical effect of synergistic enhancement of liquid directional diversion and bottom layer latching is achieved.

1. Name of the designed product: sanitary napkin. 2. Use of the designed product: for women during menstruation, etc. 3. Design points of the designed product: in shape, pattern and their combination. 4. Picture or photograph best indicating the design points: design 1 perspective view. 5. Designation of the basic design: design 1.

The invention discloses a transverse-changing speed-changing belt arc guide rail conveying system for adult pants type sanitary napkins, and relates to the technical field of sanitary napkin conveying, the transverse-changing speed-changing belt arc guide rail conveying system comprises an arc guide rail conveying body, an adjusting mechanism, a moving plate, a transverse-changing mechanism, a fixing plate, a lubricating mechanism and a fourth motor, the top of the arc guide rail conveying body is fixedly connected with the adjusting mechanism; the top of the adjusting mechanism is slidably connected with a moving plate, the top of the moving plate is fixedly connected with a transverse changing mechanism, the right front end of the bottom of the arc guide rail conveying body is fixedly connected with a fixing plate, and the bottom of the fixing plate is fixedly connected with a lubricating mechanism. And it is ensured that the moving plate is always in the optimal state in the conveying process, then through cooperation of a first electromagnetic block and a metal plate, fine adjustment and locking of the depth of a sliding groove are achieved, the situation that a first air bag deforms due to air pressure fluctuation or load change is prevented, and rigid supporting is formed.

The invention belongs to the technical field of sanitary napkins, and relates to a plant fiber breathable bacteriostatic sanitary napkin and a preparation method thereof.The plant fiber breathable bacteriostatic sanitary napkin comprises a liquid permeable surface layer, a flow guide bacteriostatic layer, an absorption core, a breathable bottom layer and a release film which are sequentially stacked and bonded; the diversion antibacterial layer is obtained by blending and hot-pressing modified plant fibers and modified polypropylene fibers; the modified plant fibers are obtained by soaking plant fibers in a bacteriostatic solution, and the bacteriostatic solution comprises tea polyphenol and salicylic acid which are co-included by beta-cyclodextrin, a chamomile extract coated by lecithin and chitosan quaternary ammonium salt; the modified polypropylene fibers are obtained by sequentially modifying polypropylene fibers by a silane coupling agent and grafting and modifying the polypropylene fibers by chitosan. The technical problems that a traditional sanitary towel product is not lasting in antibacterial effect, liquid permeation is slow, and bacteria are prone to breeding in a humid and hot environment are effectively solved, and the use safety and comfort of the sanitary towel are improved.

The invention relates to the field of hygienic products, and discloses a macroporous super-breathable, dry and comfortable hygienic product and a preparation process thereof, and the macroporous super-breathable, dry and comfortable hygienic product comprises a macroporous non-gel composite non-woven fabric, a nano platinum antibacterial layer, intelligent super absorbent resin and a softened surface layer. A macroporous structure is introduced into the surface of the non-woven fabric, so that the absorption speed of liquid and the air circulation are obviously improved; the nano platinum antibacterial layer endows the product with efficient antibacterial performance, effectively inhibits the growth of bacteria, and improves the hygienic guarantee of a user; the intelligent SAP automatically adjusts the water absorption capacity according to the environment humidity, rapidly expands under the high-humidity condition, improves the water absorption efficiency, locks the liquid and prevents the liquid from permeating back; the surface layer subjected to softening treatment further improves the comfort and the skin-friendly property of the product, and skin friction is reduced. The product is suitable for baby diapers, female sanitary napkins and adult incontinence nursing products, excellent air permeability, dry and comfortable performance and antibacterial performance are provided, and the comfortable experience of a user is remarkably improved.

The invention relates to the field of hygienic products, provides a daily pants-type sanitary towel and a preparation method thereof, and solves the problems that a conventional pants-type sanitary towel is inconvenient to put on and take off, crotch is blocked and the sanitary towel is airtight. Comprising a sanitary napkin body, the sanitary napkin body is provided with a reusable closing system, the closing system is composed of a left waist tape, a right waist tape and a magic hook, a front piece and a rear piece are connected with the closing system, the front piece, the rear piece and the closing system are sealed through a left side seal and a right side seal, and a dotted line cut is arranged on the front piece close to the left side seal and the right side seal. Dotted line cut elastic pressing points are arranged within the range of 20 mm left and right of the dotted line cut, the dotted line cut and the elastic pressing points penetrate through or partially penetrate through the front piece, and the left waist tape and the right waist tape are provided with reinforcing embossed patterns. And the magic hook is shorter than the left and right waist tapes and is narrower than the left and right waist tapes.

The invention provides an absorber of a novel environment-friendly composite fiber sanitary napkin as well as a preparation method and application, and belongs to the technical field of hygienic products, the absorber of the novel environment-friendly composite fiber sanitary napkin comprises at least three layers of fiber net structures, an upper surface layer and a lower surface layer are made of ES fibers, a middle layer is made of bamboo-based modified viscose yarns, and the middle layer is made of bamboo-based modified viscose yarns. All the layers form a tightly connected structure through microwave crosslinking, and according to the sequence of the upper surface layer, the middle layer and the lower surface layer, the pore diameter is of a continuous gradient pore structure with gradually reduced pore diameter. The absorber of the prepared environment-friendly composite fiber sanitary towel has excellent water absorption, reverse osmosis resistance and antibacterial durability, and efficient, comfortable and reliable nursing can be provided for a user in the menstrual period.

The invention relates to a preparation method of a super absorbent resin material, the resin is formed by polymerization of an acrylic monomer and konjac glucomannan, and the preparation method specifically comprises the following steps: adding konjac powder into water, adding a composite solvent and a dispersant Tween-80 to obtain a composite system 1, the composite solvent is composed of palm oil and any one of corn oil, soybean oil and rapeseed oil, and the dispersant Tween-80 is composed of a dispersant Tween-80 and a dispersant Tween-80. Continuously adding an initiator ammonium persulfate, initiating to obtain a compound system 2, then adding acrylic acid and NMBA, carrying out polymerization reaction, eluting the edible oil with diethyl ether and ethanol after the reaction is finished, drying, and crushing to obtain the super absorbent resin material. The acrylic monomer and the konjac glucomannan are polymerized to form the resin, the water absorption performance and the water retention performance of the material are effectively improved, the water absorption rate reaches 748.13 times, a small amount of ethyl alcohol is added on the basis to prepare the composite solvent, and the water absorption rate reaches 1018.96 times. The prepared resin material can be applied to hygienic products such as paper diapers and sanitary napkins.

The invention relates to the technical field of polymer absorbing materials, in particular to high-liquid-conductivity composite sodium polyacrylate water-absorbent resin, a preparation method and application. The water-absorbent resin is composed of a sodium polyacrylate matrix, low-melting-point ES fibers (accounting for 5-15% of the mass) activated through plasma or alkali etching and a surface cross-linking agent (such as glycerol and polyethylene glycol). The method comprises the following steps: melting a fiber sheath layer to coat SAP particles through one-time heat treatment (120-150 DEG C, 30-60 minutes), and meanwhile, constructing a surface chemical network by a cross-linking agent to form a physical-chemical dual structure. The composite SAP has excellent transverse drainage rate, wet compressive strength and circulation structure integrity, the liquid distribution efficiency and stability of the absorption core layer are remarkably improved, and the composite SAP is suitable for the field of hygienic products such as paper diapers and sanitary towels.

The invention discloses a one-way moisture-conducting biodegradable non-woven fabric and a preparation method thereof. A hydrazide compound is grafted to lignin through an acylation reaction, the lignin nanoparticle nucleating agent is prepared through a nano precipitation method, the crystallization behavior of biodegradable resin is changed through lignin nanoparticles, the crystallization rate is increased, the cooling forming period is shortened, and therefore the spinnability of the biodegradable resin is improved. Furthermore, the surface of the biodegradable non-woven fabric is subjected to hydrophilic and hydrophobic modification through a low-temperature plasma technology, and the biodegradable non-woven fabric with the one-way moisture guiding function is prepared. The problem that biodegradable plastics such as PBAT and PBS are poor in spinnability is solved, the bio-based nucleating agent is prepared to replace a traditional small-molecule organic nucleating agent, the problems that the traditional organic nucleating agent is difficult to biodegrade and easy to separate out are solved, and the prepared one-way moisture-conducting biodegradable non-woven fabric has good directional infusion performance and is suitable for being used as a non-woven fabric. The fabric can be widely applied to the fields such as sanitary napkins, paper diapers, masks and shoes.

The invention discloses a natural plant-based antibacterial sanitary napkin and a preparation method thereof, and relates to the technical field of antibacterial sanitary napks.The natural plant-based antibacterial sanitary napkin comprises a surface layer, a bottom layer and an absorption core located between the surface layer and the bottom layer, and the absorption core comprises modified plant antibacterial fibers of a skin-core structure; the modified plant antibacterial fibers are prepared from matrix fibers and modified finishing liquid components through an in-situ mineralization reaction, and the modified plant antibacterial fibers are prepared from the following raw materials in parts by weight: 100 parts of matrix fibers; and 0.06-8 parts of a modified finishing liquid component. A stable metal-polyphenol coordination network is constructed on the surface of the fiber in situ, efficient and lasting antibacterial and odor removal functions are achieved, the problems that a traditional antibacterial agent is prone to loss and poor in odor removal capacity are solved, meanwhile, natural-source raw materials are adopted, excellent biological safety and hydrophilic air permeability are achieved, and the preparation method is suitable for industrial production. And dryness, comfort and safety protection in the using process are guaranteed.

The application discloses a sanitary napkin containing microcapsules, comprising: an absorbent core; a bottom layer adhered to one side of the absorbent core; a surface layer adhered to the other side of the absorbent core, the surface layer being bonded to the opposite edge of the bottom layer; a microcapsule strip arranged inside the absorbent core; a cavity arranged inside the absorbent core, the microcapsule strip being located inside the cavity; and two openings arranged on the bottom layer and the absorbent core, the openings being in communication with the cavity. The sanitary napkin has stored a microcapsule strip inside, but according to different experiences of users or different needs of the users on a day, the microcapsule strip inside the sanitary napkin can be pulled out from the openings and then put into the other opening, so that the whole microcapsule strip is pulled into the sanitary napkin, thereby completing the replacement operation of the microcapsule in the sanitary napkin and realizing the adjustment of different types of microcapsules according to the needs.

The invention discloses a liquid sanitary napkin care solution adding device which comprises two first conveying mechanisms, two clamping conveying mechanisms and an adding mechanism, the two first conveying mechanisms are located on the two sides of the clamping conveying mechanisms, each clamping conveying mechanism comprises a mounting frame, two clamping conveying assemblies and a driving assembly, and the two clamping conveying assemblies are located on the mounting frame; when the sanitary napkins are conveyed, the two ends of the sanitary napkins are clamped through the left movable clamping piece and the right movable clamping piece, meanwhile, the two clamping conveying assemblies can be close to each other, and the sanitary napkins can be attached to the surfaces of the roll shafts to form a V-shaped structure under the downward pressing action of the roll shafts; and after the humidity sensor detects the care solution, the adding work is finished, so that the adding amount of the care solution can be effectively controlled, and the situation that the care solution overflows due to excessive adding is avoided.

The utility model discloses a soft and breathable sanitary napkin, which aims to solve the shortcomings of existing sanitary napkins in terms of leak-proof performance. The sanitary napkin includes a guide layer, a quick-drying layer, an absorption layer and a leak-proof back layer, wherein the leak-proof back layer is the key innovation of the present invention. The leak-proof back layer is made of waterproof and breathable material, has a multi-layer composite structure and an edge sealing design, and is formed by a heat sealing process, thereby ensuring that liquid cannot penetrate into clothing while maintaining good air permeability. In addition, the leak-proof back layer is also soft, scalable and quiet, providing a more comfortable use experience. The present invention effectively prevents liquid side leakage and back leakage by optimizing the structure and material selection of the sanitary napkin, thereby improving the overall performance and user satisfaction of the sanitary napkin.

The invention relates to the technical field of hygienic product production and manufacturing, and discloses an online high-speed sanitary towel spraying decoration system and method. The method includes acquiring a real-time surface image stream of the substrate by an upstream optical sensor array, including multispectral reflectance and microtopography data. And dynamically fitting a virtual reference plane based on the statistical median of the morphology data so as to adapt to material movement and surface fluctuation. And establishing a spraying control grid on the plane, and mapping reflection data to each grid point. Reversely solving a pigment theoretical saturation point according to the lattice point reflection characteristics, and calculating the initial spraying dosage of each point according to the pigment theoretical saturation point. And a multi-nozzle cooperative spraying instruction is generated in combination with the conveying speed. The method can adapt to the state change of the base material in real time, and accurate pattern positioning and dose on-demand supply on a high-speed production line are achieved, so that the uniformity and definition of a decorative layer are improved, and raw materials are saved.

The invention provides a structure and a production process of a wet tissue material and a sanitary towel liquid absorption material in the hygienic product industry, and relates to the technical field of hygienic products, the structure comprises a first hydrophilic solvent layer, a first PP melt-blown material layer, a middle functional layer and a second PP melt-blown material layer which are arranged in sequence, and a second hydrophilic solvent layer is further arranged on the outer side of the second PP melt-blown material layer; when the material is a sanitary towel liquid absorption material, the middle functional layer is a mixed layer of a PP melt-blown material, wood pulp and macromolecules; when the material is a wet tissue material, the middle functional layer is a mixed layer of a PP melt-blown material and wood pulp, the proportion of the raw materials can be adjusted, and the middle functional layer is used for manufacturing products such as urine pads, kitchen dry tissues, pet pads and dust-free paper; through the composite structure design of the PP melt-blown material and the wood pulp / wood pulp-macromolecules and the hydrophilic modification treatment of the outer layer, the overall tensile strength is effectively enhanced, and the problem of tearing or layering in use is avoided; the material softness is improved, and the material is more fit and comfortable; the moisture retention performance and the liquid absorption diffusion speed of the material are optimized, it is guaranteed that the wet tissue can keep moist for a long time, and the sanitary towel can rapidly and evenly absorb liquid.