The invention discloses a wet spunlace nonwoven spontaneous-heating dressing for a heat-producing medicine film and a production technology of the wet spunlace nonwoven spontaneous-heating dressing. The wet spunlace nonwoven spontaneous-heating dressing comprises a wet spunlace nonwoven base cloth and a pure traditional Chinese medicine heat-producing electrostatic spinning medicine film; the wetspunlace base cloth is prepared from a bamboo pulp and a viscose fiber according to the fiber ratio of 6:4 through the technologies of wet laying first, spunlace reinforcing and hot-air drying in sequence, the cloth cover density of the wet spunlace base cloth reaches 40 g/m -60 g/m , spontaneous-heating liquid medicine is mixed into a spinning solution and evenly sprayed on the wet spunlace base cloth in an electrostatic spinning mode, the spinning voltage is 20 KV, the spinning solution feed rate is 0.015 ml/min, and thus the tight heat-producing medicine film is formed on the surface ofthe wet spunlace base cloth. Raw materials adopted by the wet spunlace nonwoven spontaneous-heating dressing are all degradable fibers, and by combining with the nonwoven technologies of wet laying,spunlace reinforcing and the like, the phenomena of large energy consumption, much waste and heavy pollution in traditional technological processing are effectively reduced; and through addition of the pure traditional Chinese medicine heat-producing electrostatic spinning medicine film, the human body using feeling and the using curative effect of the dressing are greatly improved.

Wet spunlace nonwoven spontaneous-heating dressing for heat-producing medicine film and production technology of wet spunlace nonwoven spontaneous-heating dressing

A preparation method of a high-porosity facial mask comprises the steps that milk protein cellulose preparation and composite spinning are included and is characterized in that the milk protein cellulose preparation sequentially comprises decompression evaporation, degreasing, alkalization, separation and kneading; and in the decompression evaporation step, the segmented decompression evaporationis carried out on pure milk, wherein the first stage temperature is 45-60 DEG C, the evaporation pressure is 22-30 kPa, the concentrating is carried out till the water content is 65-75%, the second stage temperature is 35-50 DEG C, the evaporation pressure is 12-20 kPa, and the concentrating is carried out till the water content is 50-60%. According to the method, the extraction rate of the milk protein fiber is increased from 70% to 90%, and the excellent mechanical property is achieved. The method has the beneficial effects that in the process of preparing the modified facial mask base cloth, no broken wire and layered phenomena exit, the uniformity is good, and no agglomeration exists; the shrinkage rate after water soaking of the base cloth is reduced, the dimensional stability is good, the prepared base cloth is large in pore diameter and high in porosity, and the porosity reaches 70.2%, so that the facial mask basically has excellent air permeability and hygroscopicity, and the air permeability of the facial mask reaches 2,960 mm/s, and the water vapor transmission amount reaches 1,580 g/(m2.d).

Preparation method of high-porosity facial mask

The invention provides a medical dressing which comprises a positively charged protective layer, a water-absorbing sponge layer and a piezoelectric repairing layer which are sequentially and tightly connected, and the positively charged protective layer, the water-absorbing sponge layer and the piezoelectric repairing layer are nanofibers prepared by an electrostatic spinning method. The inventionfurther provides a preparation method of the medical dressing, a positively charged material, a water absorbing material and a piezoelectric material are compounded through an electrostatic spinningmethod, and the multifunctional medical dressing with a multi-layer structure is constructed. According to the prepared multifunctional medical dressing, the high air permeability of the nanofibers, the adsorption isolation performance of the positively charged layer to bacteria and viruses, the strong water absorption expansibility of the water absorption sponge layer and the electrical stimulation repairing effect of the piezoelectric repairing layer are fully utilized, a multi-layer structure is constructed, and the dressing is compounded after ultraviolet cross-linking sterilization. The multifunctional dressing is sterile, harmless and powerful in function, and has huge application value and wide market prospect in the fields of battlefield rescue, wound repair, skin treatment and thelike.

Medical dressing and preparation method thereof

The invention discloses a slow release type chitosan antibacterial dressing and belongs to the technical field of wound repair The problems are solved that traditional dressings have low functionality and requirements of wound healing cannot be met The dressing comprises a nanofiber membrane and a spunlaced non-manufactured substrate; the nanofiber membrane is composed of nanofibers having a structure of a shell layer and a core layer; the core layer is made of human epidermal growth factors and bovine serum albumin, and the shell layer is made of chitosan and polyvinyl alcohol The invention also discloses a preparation method of the slow release type chitosan antibacterial dressing On the basis of a coaxial electrospinning technology, by combining with on on-line deposition process, the slow release type chitosan antibacterial dressing made of the human epidermal growth factors is prepared; through slow release of the human epidermal growth factors, the effective action time of the human epidermal growth factors on partial wounds is prolonged, the synergistic healing and antibacterial effects of the human epidermal growth factors and chitosan can also be exerted, and the effect of accelerating wound healing is achieved

Slow release type chitosan antibacterial dressing and preparation method thereof

The invention relates to a microcurrent wound healing promotion antibacterial dressing and a preparation method thereof. Electrostatic spinning technology is adopted to prepare a composite nanofiber membrane having piezoelectric effect, and the composite nanofiber membrane is subjected to hydrothermal treatment to enable zinc oxide nanorods to be distributed on the surface of nanofiber in a highly-oriented manner, so that piezoelectric effect is further enhanced; microcurrent generated by the piezoelectric effect can promote proliferation and differentiation of cells at a wound, an enrofloxacin drug slow-release system has an antibacterial function, and wound healing promotion effect is realized through synergism of the microcurrent and the enrofloxacin drug slow-release system. Types of high-performance medical dressings are enriched, and a new solution is provided for developing high-end medical dressings capable of replacing the imported.

Microcurrent wound healing promotion antibacterial dressing and preparation method thereof

The invention provides an implantable anti-tumor dressing, which comprises a nanofiber membrane. The outer side of the nanofiber membrane is covered with a hemostatic material, and the hemostatic material is chitosan aerogel; the nanofiber membrane is formed by weaving nanofibers, the nanofibers are set as core-shell composite structures composed of core layers and shell layers,the core layers ofthe nanofibers are prepared by using an anti-tumor drug doxorubicin, and the shell layers of the nanofibers are prepared by using polylactic acid-glycolic acid doped with black phosphorus quantum dots. The invention further provides a preparation method of the implantable anti-tumor dressing. The preparation method of the implantable anti-tumor dressing comprises the steps that a core layer spinning solution is prepared; shell layer spinning solution is prepared; a core-shell structure nanofiber membrane is prepared by using a coaxial electrostatic spinning method; a shell polyacetic acid solution is prepared; and the implantable anti-tumor dressing is prepared. The implantable anti-tumor dressing has outstanding effects in all of hemostatic properties, antibacterial properties, anti-tumordrug release, and photothermal killing of tumor cells and has broad medical prospects.

Implantable anti-tumor dressing and preparation method thereof

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Slow release type chitosan antibacterial dressing and preparation method thereof

Microcurrent wound healing promotion antibacterial dressing and preparation method thereof

Implantable anti-tumor dressing and preparation method thereof