324 results about "NATURAL LATEX RUBBER" patented technology

The invention provides a graphene modified natural latex material as well as a preparation method and an application thereof. The method comprises steps as follows: a graphene material and at least one auxiliary required for production of a natural latex product are mixed and ground, and a mixed material is obtained; the mixed material is mixed with natural latex, a mixture is subjected to curing, and the graphene modified natural latex material is obtained. Thegraphene material and the auxiliary are mixed firstly, so that adverse effects of the graphene material on natural latex are avoided, the graphene material is dispersed better, strength, tear resistance and antibacterial property of the material are enhanced, and the graphene modified natural latex material can be used for preparing various latex products.

The invention discloses a latex mattress production process. The process is characterized by comprising the following steps: preparing a latex solution containing negative ion powder, then adding the latex solution, zinc oxide and a coagulant into a foaming device, and foaming to prepare a material A; preparing a latex solution containing magnet powder, then adding the latex solution, zinc oxide and the coagulant into the foaming device, and foaming to prepare a material B; preparing a latex solution containing far infrared ceramic powder, then adding the latex solution, zinc oxide and the coagulant into the foaming device, and foaming to prepare a material C; preparing a latex solution containing ochre powder, then adding the latex solution, zinc oxide and the coagulant into the foaming device, and foaming to prepare a material D; arranging the materials A, B, C and D into the four corners of a mold; and arranging the mold into a steaming box, and steaming. The latex mattress produced by the production process is the same as the purely natural latex product, and due to the reasonable addition of the ochre powder, the far infrared ceramic powder, the magnet powder and the negative ion powder, the latex mattress has the health care effects of capability of suppressing hyperactive liver for calming endogenous wind, far infrared emission, magnet therapy and negative ions.

A method for modifying natural latex by aqueous polyurethane includes the steps of: preparing a prepolymer from raw materials of IPDI, PTMG, BDO, and DMPA, adding HEA to block the -NCO end of the prepolymer, reacting for 50 min, cooling to 40 DEG C, adding triethylamine for a neutralization reaction to form a salt, reacting for 3-4 min, adding water to emulsify for 60 min to obtain an aqueous polyurethane emulsion, and physically blending the aqueous polyurethane with natural latex to obtain the aqueous polyurethane-modified natural latex. The aqueous polyurethane-modified natural latex of the present invention can improve smoothness, compactness and mechanical strength of natural latex film, and reduce the escape of allergenic proteins at the same time.

The present invention provides an environmental protection type aqueous release film, which comprises a thin film layer and a release layer positioned on the thin film layer, wherein the release layer comprises, by weight, 35-45 parts of an aqueous polyethylene wax emulsion, 45-55 parts of an aqueous polyurethane emulsion, 20-30 parts of an aqueous modified polyvinyl alcohol solution, 5-10 parts of natural latex, 3-5 parts of a silane coupling agent, 0.3-0.5 part of a defoamer, and 0.3-0.5 part of a thickener, and the aqueous modified polyvinyl alcohol solution comprises, by weight, 100 parts of polyvinyl alcohol, 700-800 parts of deionized water, and 30-50 parts of modified calcium carbonate. The release film of the present invention is the aqueous environmental protection type release film, has characteristics of good peel strength and good stretching strength, and is the release film having the good comprehensive performance.

The present invention discloses the preparation process of nanometer montmorillonite modified natural latex for medical product. Montmorillonite, which may be natural montmorillonite mineral, nanometer montmorillonite, organic montmorillonite treated with C12-C18 alkyl trimethyl ammonium chloride or ammonium bromide or nanometer montmorillonite through mechanical and chemical grinding, is added into natural rubber latex in the sulfurizing or cooperating stage, and through the subsequent dispersion, pressurizing or dipping, washing, filtering and sulfurizing drying, the modified product is obtained. The present invention has simple technological process, and the prepared medical product has excellent ageing resistance, high tensile and breaking strength, and good microbe permeation resistance.

The invention discloses a manufacturing method of a nutritional skin-care skin-moisturizing powder-containing polyvinyl chloride (PVC) glove, which comprises the following steps: preparing materials, filtering, defoaming under vacuum, immersing, dropping, plasticizing, cooling, rolling edge, preparing powder, adhering powder and demoulding. The method is characterized in that: collagen and vitamin E are added during material preparation; and submicron wall-broken powder of pearl powder, dandelion, witch hazel, aloe, peach blossom and pear blossom is added into corn starch in a powder adhering process. The glove has the advantages of overcoming the drawbacks of the conventional PVC gloves, integrating sanitation, environment protection, safety, nutrition, skin care and skin moisturizing, offering comfortable wear and flexible use experience, avoiding any natural latex components and avoiding causing allergic reaction, along with good nutritional skin-care and skin-moisturizing functions.

The invention relates to the field of mattress correlation techniques, and discloses assembly line type natural emulsion mattress cleaning equipment. The assembly line type natural emulsion mattress cleaning equipment comprises a lower base, and a supporting seat is fixedly connected in the lower base. The top end of the supporting seat is movably connected with rolling wheels. According to the assembly line type natural emulsion mattress cleaning equipment, a mattress enters the equipment from a first conveying belt, cleaning cloth is arranged above the first conveying belt, and the cleaningcloth can be kept wet all the time through a water dividing pipe in a water pipe cavity and has a cleaning effect. After the mattress is cleaned by the cleaning cloth, water in the mattress can be squeezed out through the cooperation of an upper squeezing wheel and a lower squeezing wheel, then the mattress enters a second conveying belt, and a drying chamber is arranged above the second conveyingbelt. Under pushing of an exhaust fan, air is heated by two heating screens and reaches the mattress to dry the mattress. After drying is completed, the mattress is discharged out of the equipment accordingly, the equipment successfully achieves an assembly line type cleaning function, and the natural emulsion mattress can be efficiently cleaned in large batch.

The invention relates to the preparation technology of vibration isolation gloves. The preparation technology of the vibration isolation gloves is characterized by comprising the steps of sequentially going through the procedure of material preparation, the procedure of foam rubber preparation, the procedure of dotting and the procedure of drying, wherein the procedure of rubber soaking preparation after the procedure of foam rubber preparation is further included, and the procedure of rubber soaking and the procedure of re-drying are further included after the the procedure of drying. In the procedure of material preparation, raw materials comprise natural emulsion, foaming agents, thickening agents and waterborne PU resin. According to procedure of dotting, foam rubber is used for frictioning for about 10 seconds. According to the procedure of rubber soaking, the rubber is soaked in the rubber soaking glue for about 1-2 seconds. The rubber is made to be even for 5 times. The manufactured vibration isolation gloves have buffer performance, is capable of effectively reducing vibration to hands, strong in holding power, soft, light, sensitive, good in breathability, and incapable of enabling a user to feel fatigue after being worn for a long time.

Therapeutic rest bed, which comprises a bed base (2) of which the beechwood slats (12) are connected to the frame in movable groups of two or three slats, depending on the areas of the body to which they correspond, by means of pivot pieces (13), shock-absorbing supports (17), height-adjustable supports (22) and arm rests (29), a mattress (3) made from 100% natural latex with holes (30) and a sheet (31) of coconut fibre; a mattress cover (4) with an organic-carbon mesh (32) connected to a wire (33) acting as earth, a mattress topper (5) that has another organic-carbon mesh (35), a blanket (6) with a merino-wool cover (8) with a heat-regulating effect, and a pillow (7) also made from 100% natural latex.