53results about How to "Absorption does not affect" patented technology

The invention discloses a weight-loss health-care food which is prepared from the main raw materials of, by weight, 1-60% of a white kidney bean extract, 1-50% of L-malic acid, 1-65% of L-carnitine tartrate, and 1-40% of konjac powder. The invention also discloses a preparation method of the weight-loss health-care food. The method comprises the step that: the main materials of the white kidney bean extract, L-malic acid, L-carnitine tartrate, and konjac powder are well mixed, such that the health-care food with weight-loss function is obtained. With the health-care food, starchy substance absorption is inhibited, body metabolism is promoted, and energy conversion is promoted, such that fat consumption is increased, fat formation is prevented, and a weight-loss function is achieved. With the preparation method, absorption of nutrients such as proteins and vitamins is not influenced, diet control is not needed, and weight can be naturally controlled and reduced. The preparation method provided by the invention has the advantages of simple process, no high-temperature operation, convenient operation, and energy saving.

The invention relates to a novel composite energy apparatus and a power generating method. The composite energy apparatus comprises a solar cell and a transparent friction generator covering on the surface of the solar cell. The transparent friction generator is used to replace a commercial proactive panel on the uppermost layer of the solar cell in rainy seasons or at night to form the novel composite energy apparatus; in sunny days, sunshine penetrates through the transparent friction generator, the solar cell can collect solar energy for realizing photovoltaic generation as usual; in rainy days when the photovoltaic generation efficiency is greatly reduced, the friction generator can collect rainwater energy for realizing friction power generation in an auxiliary manner; the transparent friction generator is used as the solar cell protective plate without influencing the photoelectric conversion efficiency on one hand, and on the other hand, the transparent friction generator can collect rainwater energy from the nature. According to the novel composite energy apparatus, the single photovoltaic generation solar cell panel is expanded into the composite energy cell system, and the brand new composite type green energy apparatus is realized, so that the composite energy apparatus is high in actual application value.

The invention discloses an organic solar cell with an exciton blocking and sunlight sensitivity enhancing integrated type hole transport layer and a preparation method of the organic solar cell. The organic solar cell comprises a substrate, a transparent electrode, a hole injection layer, an exciton blocking layer, a donor layer, a receptor layer, an electronic transmitting layer and a negative electrode. The organic solar cell is characterized in that the exciton blocking layer can effectively block electrons at a positive electrode end through material matching, and dark current components and electron leakage currents of a photovoltaic cell are reduced; ultraviolet light in sunlight can be absorbed for emitting pure blue light or sky blue light, and the number of incidence photons of an active layer of the subsequent organic solar cell is increased. Photo-generated currents are increased for improving the power conversion efficiency of a photovoltaic cell. The organic solar cell achieves dual functions of exciton blocking and sunlight enhancing at the same time through a simple method without other additional optical design or complex processes. The organic solar cell is simple in preparation process, low in device requirement and suitable for mass production.

The invention discloses a method for inhibiting photo-corrosion of cadmium sulfide by using composite gold nanoclusters and a preparation method thereof. The method comprises the following steps: (1) preparing CdS nano crystal grains by using a sulfur source solution and a cadmium source solution through a hydrothermal synthesis method; (2) adding a sulfydryl complex into a gold source solution to prepare a gold nanocluster dispersion solution; and (3) carrying out ultrasonic dispersion on the CdS nano crystal grains to prepare a turbid solution, adding the gold nanocluster dispersion solution, and combining the gold nanoclusters with CdS through nano self-assembly to obtain a CdS-Aux composite catalyst. Compared with the prior art, the method has the advantages that the photocatalytic activity of CdS can be improved, the photo-corrosion of CdS can be effectively inhibited, the photocatalytic activity and the photostability of CdS can be improved at the same time, the CdS is synthesized by a pure liquid phase wet process, the preparation process is simple, the reaction condition is mild, the energy consumption is low, and large-scale popularization and application can be facilitated.

The invention discloses weight-losing / weight-controlling absorbable jelly and a preparation method thereof, relates to the technical field of food processing, and fills he technical blank that no absorbable jelly prepared by a cold process exists in the prior art. The absorbable jelly comprises the following raw materials in parts by weight: 0.5 to 1.5 parts of calcium alginate, 0.5-1 part of potassium carbonate, 1-2 parts of a calcium-releasing freezing agent, 0.1-8 parts of heat-sensitive weight-losing and weight-controlling powder, 2-30 parts of L-arabinose, 0.1-3 parts of an agaricus bisporus extract, 1-5 parts of fruit powder, 0.01-0.06 part of potassium sorbate, 0.1-0.5 part of citric acid, 0.1-0.5 part of sodium citrate and the like. The heat-sensitive weight-losing and weight-controlling powder is one or a composition of white kidney bean extract, seaweed ferment powder, potato extract and fish collagen powder. The absorbable jelly disclosed by the invention is developed from functional food raw materials, is a safe food with weight losing and weight controlling effects, and has a good market prospect.

The invention relates to an infrared isolation glass composition for preventing ultraviolet radiation. A colorant is added to ordinary sodium-calcium-silicon glass; the proportion of the colorant is as below: total iron content (Fe2O3) is between 0.3 and 0.9wt%, the content of ferrous iron (Fe<2+>) in total iron is 24-36%, the content of CuO is between 0.1-0.5wt%, the content of CeO2 is between 0.1-0.5wt%, the content of TiO2 is between 0.2-1.5wt%, and the content of MnO is 0-0.02wt%. The glass excellent heat absorbing performance, more than 75% visible light transmittance no more than 24% of the total infrared transmittance, no more than 15% of ultraviolet transmittance, and no more than 42% of the total solar energy transmittance when the glass thickness is at 4mm. The glass not only does not interfere with people's vision, but also has good effects of sun shading, heat insulation and ultraviolet radiation.

The invention discloses a rapid propagation method for hybrid cymbidium seedlings of cymbidium sinense and cymbidium hookerianum. Hybrid cymbidium aseptic seedling base tissue of the cymbidium sinense and the cymbidium hookerianum is used as a raw material, induction culture is performed in an induction culture medium containing various plant growth regulators and additives, protocorms are obtained and subjected to proliferation and differentiation culture, and then seedling strengthening, rooting and transplantation are performed. Steps of proliferation and differentiation of the protocorms are combined, the culture procedure is simple, the material cost for preparation of the culture medium is greatly reduced, the labor cost for preparation of the culture medium and inoculation is also reduced, the inductivity of the protocorms is high, the quantity of the protocorms is large, the proliferation coefficient is large, and the method has multiple advantages of low production cost, high seedling quality, short culture period, avoidance of variation and the like.

The invention relates to maca pollen, relates to a preparation method for the maca pollen, and belongs to the technical field of health products. The maca pollen is prepared from the following raw materials in parts by weight: 20-30 parts of rape pollen, 40-60 parts of maca powder, 1-10 parts of lentinula edodes beef powder, 1-5 parts of yam powder, 1-10 parts of mango powder, 6-10 parts of pumpkin seed powder, 2-10 parts of isomaltitol and 1-6 parts of composite dietary fibers. The preparation method for the maca pollen comprises the following steps: accurately weighing the raw materials according to a formula, performing superfine grinding on the rape pollen, then mixing with the maca powder, adding the pumpkin seed powder, the entinula edodes beef powder, the yam powder, the mango powder and the composite dietary fibers in sequence, finally adding the isomaltitol, uniformly mixing and then performing superfine grinding until the fineness is 2-10 microns. According to the research, the rape pollen, the maca powder, the pumpkin seed powder and other raw materials are combined, so that the immunity is improved, the anti-fatigue is obvious, and the gastroenteric function is improved. The maca pollen can be mixed with water for drinking or can be used as a raw material.

The invention provides a laminated solar cell. The solar cell comprises a top cell and a bottom cell which are superposed. The top cell is a perovskite cell. The perovskite cell comprises a bromine doped CH3NH3PbI3 film. The bottom cell is a cadmium telluride cell. Compared with the prior art, by using the cell of the invention, a forbidden bandwidth of the perovskite cell can be changed in a range of 1.57eV to 2.30eV along with a bromine-doped proportion change, a forbidden bandwidth of the cadmium telluride cell is 1.43eV, the perovskite cell is taken as the top cell, the cadmium telluride cell is taken as the bottom cell, and the manufactured laminated cell can widen absorption wavelength ranges of the two cells to sunlight; cell conversion efficiency is increased, and a requirement toa cadmium sulfide thickness is reduced, which is good for reducing manufacturing cost; simultaneously, photon-generated carrier energy generated by light with a short wave length in the perovskite cell of a wide forbidden band is increased and an open-circuit voltage of the laminated cell is increased too.

The invention relates to a process for preparing a neutron absorber for absorbing stray neutrons, and in particular relates to a processing technology for a boron carbide neutron absorber which is wide in raw material sources, low in processing cost and simple in process and can be applied in a collimator for effectively absorbing the stray neutrons. The processing technology comprises the following steps: 1), selecting raw materials; 2) selecting moulds; 3) stirring the raw materials; 4) pressurizing and mold-filling; 5) curing and molding; 6) demolding and molding. The boron carbide neutron absorber has easily-available raw materials, is simple in processing steps and low in cost; cold press molding is generally adopted, and the difficulty in the molding process is avoided; the molding or curing time can be greatly shortened on the premise of hot press, the curing speed is increased, and the yield is improved; moreover, according to the boron carbide neutron absorber prepared by processing, the good neutron absorption can be realized, and therefore, the processing technology for boron carbide neutron absorber is suitable for industrial development and can bring long-term economic benefit.

The invention belongs to the technical field of organic photoelectric materials, and discloses abenzobithiadiazole-containing n-type water / alcohol soluble conjugated polyelectrolyte as well as preparation and application thereof. The structure of the benzobithiadiazole-containing n-type water / alcohol soluble conjugated polyelectrolyte is shown as a formula I, A or B is a side chain with a water-alcohol soluble strong polar group, and at least one of A and B is a side chain with a water-alcohol soluble strong polar group, wherein x is more than 0 and less than or equal to 0.5 and is not 0, and n is a positive integer of 1-2000. The invention also discloses a preparation method of the conjugated polyelectrolyte. The conjugated polyelectrolyte disclosed by the invention has air-stable n-type conductivity, has extremely weak absorption in a visible light region, and does not influence light absorption of an active layer when being applied to an organic solar cell device; meanwhile, the conjugated polyelectrolyte disclosed by the invention has water / alcohol solubility and can be processed by a solution. The method is simple and easy to implement. The conjugated polyelectrolyte disclosed by the invention is used for preparing a photoelectric device and is used as an electron transport layer.

The invention discloses zinc-rich yogurt. The zinc-rich yogurt is prepared from the following raw materials in parts by weight: 15-45 parts of a fresh cow milk-fresh goat milk mixture, 1-10 parts of nuts, 0.001-0.05 part of a zinc enhancer, 5-15 parts of lean meat, 0.2-2 parts of yolk and 0.002-0.025 part of yeast powder, wherein the mass percentage of fresh goat milk in the fresh cow milk-fresh goat milk mixture is 1%-20%. The yogurt has a good zinc supplementing effect and is easy to absorb. The invention further provides a preparation method applicable to the industrial production of the zinc-rich yogurt. The preparation method comprises the following steps: (1) thoroughly cooking the lean meat and the yolk, baking and grinding the cooked lean meat and yolk, and mixing the lean meat and the yolk with the nuts; (2) mixing and homogenizing the mixture in the step (1) with the fresh cow milk or the fresh goat milk, carrying out sterilization, and adding prebiotics and the yeast powder; (3) inoculating 6%-9% of fermentation strains of Lactobacillus bulgaricus, Streptococcus thermophilus and bifidobacteria, and fermenting for 160h, wherein the fermentation parameters are as follows: the indoor temperature is 40-50 DEG C, and the humidity is 67%-70%; and (4) adding a proper amount of saccharose into the obtained yogurt for seasoning.

The invention discloses a weight-loss health-care food which is prepared from the main raw materials of, by weight, 1-60% of a white kidney bean extract, 1-50% of L-malic acid, 1-65% of L-carnitine tartrate, and 1-40% of konjac powder. The invention also discloses a preparation method of the weight-loss health-care food. The method comprises the step that: the main materials of the white kidney bean extract, L-malic acid, L-carnitine tartrate, and konjac powder are well mixed, such that the health-care food with weight-loss function is obtained. With the health-care food, starchy substance absorption is inhibited, body metabolism is promoted, and energy conversion is promoted, such that fat consumption is increased, fat formation is prevented, and a weight-loss function is achieved. With the preparation method, absorption of nutrients such as proteins and vitamins is not influenced, diet control is not needed, and weight can be naturally controlled and reduced. The preparation method provided by the invention has the advantages of simple process, no high-temperature operation, convenient operation, and energy saving.

The invention relates to a wheat straw fiber nonwoven mask base cloth and a wheat straw fiber mask. A preparation method of the mask base cloth includes the steps that 1, wheat straw is cut off, soaked with water and then taken out, dewatering extrusion is performed, and crushed wheat straw is obtained; 2, the crushed wheat straw is subjected to steam explosion, and an explosion fiber material isobtained; 3, the explosion fiber material is washed, and a washed fiber material is obtained; 4, the washed fiber material is carded into a web, subjected to spunlace reinforcement and then dried, anda nonwoven base material is obtained; 5, an ethanol solution of alpha-dragosantol is uniformly sprayed onto the surface of the nonwoven base material, drying is performed to remove ethanol, and an anti-allergic base material is obtained; 6, the anti-allergic base material is immersed into a chitosan acetic acid aqueous solution, subjected to negative-pressure defoaming and taken out, redundant liquid is squeezed out, drying is performed, and finally the mask base cloth is obtained. The mask base cloth has appropriate mechanical performance, satisfactory liquid holding capacity and breathability and good biocompatibility and antibacterial performance, causes no adverse reaction to the human skin in the use process and has a satisfactory use effect; the mask base cloth can be degraded fastin the environment after being used and discarded, thereby having environmental friendliness.

The invention relates to a slow / controlled-release preparation of tamsulosin hydrochloride and a preparation method thereof. The slow / controlled-release preparation comprises (i) a pill core which ismade of the following raw material in parts by weight: 135-165 parts of a microcrystal cellulose micro-pill cores; (ii) a slow-release layer which is made of the following raw materials in parts by weight: 0.36-0.44 parts of tamsulosin hydrochloride, 145-200 parts of a slow / controlled release material and 3.8-58 parts of a pore forming agent. Dissolution degree tests show that the slow / controlled-release tamsulosin hydrochloride preparation consisting of a blank pill core and a medicine-carrying slow / controlled release coating layer has a slow-release effect within a relatively pH value range(the pH value is 1.2, 4 or 6.8), has a pH value independent slow-release property, and is capable of solving the problem that absorption of tamsulosin hydrochloride is affected as the pH value of a gastrointestinal tract is changed if a patient takes foods, therefore, the slow / controlled-release preparation of the tamsulosin hydrochloride, which is provided by the invention, can be taken both before or after a meal, and is relatively convenient to take, and absorption of the tamsulosin hydrochloride is not affected.

The invention relates to the technical field of skin-care products and in particular relates to an easy-to-absorb rose essential oil mask. The easy-to-absorb rose essential oil mask comprises a substrate layer, wherein a nano-fiber layer containing collagen is arranged on one face of the substrate layer; the nano-fiber layer containing the collagen is coated with medical liquid containing the collagen and rose essential oil. The rose essential oil provided by the invention is used as an oily component and is dissolved into the nano-fiber layer of the collagen, so that facial dirt can be free in the rose essential oil very well and a good dirt removing effect is realized; the removed dirt moves along the substrate layer and absorption on beautifying components of skin is not influenced.

The invention discloses chitosan hydrogel as well as a preparation method and an application of the chitosan hydrogel in gastric filling agents, and relates to the field of medical assistance. The chitosan hydrogel comprises chitosan and polyanionic natural polysaccharide. The preparation method comprises the following steps: dissolving the chitosan in a solvent A to prepare a chitosan acetic acid solution; dissolving polyanionic natural polysaccharide in a solvent B to prepare a polyanionic natural polysaccharide solution; adding silicone oil into a polyanionic natural polysaccharide solution, stirring, adding a chitosan acetic acid solution to form a solution with gel microspheres, stirring, and adjusting the pH value; seperating the gel microspheres from the solution in a centrifugal mode, rinsing the gel microspheres with pure water, obtaining the chitosan hydrogel after drying, and applying the chitosan hydrogel to the gastric filling agent. The chitosan hydrogel serving as the gastric filling agent has the high swelling ratio and the high pH sensitivity, meanwhile, the body weight can be actively adjusted, the preparation steps are simple, the cost is low, and the components are safe.

The invention belongs to the field of agricultural planting technologies and discloses a fruit-vegetable nutrient solution for soilless culture. The fruit-vegetable nutrient solution comprises 1000-1080 mg / L Ca(NO3)2.4H2O, 300-320 mg / L KNO3, 125-140 mg / L KH2PO4, 380-400 mg / L MgSO4.7H2O, 24-32 mg / L EDDHA-Fe, 2-2.5 mg / L MnSO4.H2O, 0.2-0.3 mg / L ZnSO4.7H2O, 2.5-3 mg / L Na2B4O7.10H2O, 0.05-0.1 mg / L CuSO4.5H2O, 0.01-0.03 mg / L Na2MoO4.2H2O and the balance water. The fruit-vegetable nutrient solution provided by the invention overcomes the defects that fruits and vegetables are iron deficient and thatacidities and alkalinities of the existing nutrient solutions vary greatly. Meanwhile, the fruit-vegetable nutrient solution has wider application range and better nutritional effect.

The invention relates to the technical field of sound insulation devices and discloses a novel environment-friendly sound insulation cover. The sound insulation cover comprises a base; a sound absorption layer is arranged inside a damping layer, and a fan is fixedly connected to the left upper side surface inside the damping layer; the upper end of the base is fixedly connected to a support leg, the upper end of the support leg is fixedly connected to a placing frame, and the outer side of the support leg is provided with a first spring; both ends of the inner part of the placing frame are connected to fixing frames in a sliding manner, and the inner sides of the fixing frames are fixedly connected to extrusion plates. According to the novel environment-friendly sound insulation cover, acoustic kinetic energy of partial noise is weakened through the damping layer, the sound absorption layer further absorbs the noise, and a transmission direction of the partial noise is rebounded on thesound absorption layer through reflecting plates; and a long annular air duct and the plurality of reflecting plates are arranged, so that the noise is fully absorbed by the damping layer and the sound absorption layer, in this way, the noise insulation efficiency is improved, and the purpose of ventilation and heat dissipation of an operation mechanism is achieved.

The invention relates to a novel composite energy apparatus and a power generating method. The composite energy apparatus comprises a solar cell and a transparent friction generator covering on the surface of the solar cell. The transparent friction generator is used to replace a commercial proactive panel on the uppermost layer of the solar cell in rainy seasons or at night to form the novel composite energy apparatus; in sunny days, sunshine penetrates through the transparent friction generator, the solar cell can collect solar energy for realizing photovoltaic generation as usual; in rainy days when the photovoltaic generation efficiency is greatly reduced, the friction generator can collect rainwater energy for realizing friction power generation in an auxiliary manner; the transparent friction generator is used as the solar cell protective plate without influencing the photoelectric conversion efficiency on one hand, and on the other hand, the transparent friction generator can collect rainwater energy from the nature. According to the novel composite energy apparatus, the single photovoltaic generation solar cell panel is expanded into the composite energy cell system, and the brand new composite type green energy apparatus is realized, so that the composite energy apparatus is high in actual application value.

The invention provides a water-soluble fertilizer for preventing blossom-end rot, and applications thereof, wherein the water-soluble fertilizer comprises: 28 parts of potassium nitrate, 47.2 parts ofcalcium nitrate, 12.3 parts of magnesium nitrate, 0.5-30 parts of potassium polyphosphate, 1.3-1.5 parts of EDTA-Fe, 0.6-0.7 part of EDTA-Mn, 0.25-0.3 part of EDTA-Zn, 0.25-0.3 part of EDTA-Cu, 0.101parts of boric acid, and 0.024 part of sodium molybdate, and the polymerization degree of the potassium polyphosphate is 2-15. According to the present invention, the water-soluble fertilizer has good water solubility, contains twelve nutrition elements, and can make crops fully absorb the calcium element in the fertilizer while cannot affect the absorption of other nutrition elements, such thatcrops can be prevented from blossom-end rot while grow in a balance state without element deficiency symptoms.

The invention discloses a plant face-beautifying dry facial mask. The plant face-beautifying dry facial mask is made of low-deuterium water and plant dry facial mask cloth, and is prepared from the following components in parts by weight: 80-120 parts of the low-deuterium water, 30-60 parts of radix polygonati officinalis protein fiber, 5-25 parts of poria cocos protein fiber, 5-20 parts of paeonia suffruticosa root bark protein fiber, 5-25 parts of liquorice protein fiber, 5-20 parts of radix asparagi protein fiber, 5-20 Parts of citrus paradisi seed protein fiber and 5-25 parts of cotton fiber. The plant face-beautifying dry facial mask adopts the low-deuterium water, effectively reduces the deuterium content of water and enhances the activity of cells, and the low-deuterium water has the functions such as activating immune cells, improving basal metabolic level of a human body, resisting cell mutation and delaying cell aging. The plant face-beautifying dry facial mask cloth containsplant essence ingredients, after the plant face-beautifying dry facial mask cloth absorbs the low-deuterium water, released plant nutrients are more easily absorbed by the skin, and moisture and nutrients required for the skin are replenished in time.

The invention discloses a thermophotovoltaic power generation system spectral measurement method, which is characterized in that thermophotovoltaic cells are arranged around an isotope heat source anda radiation emitter, photoelectric conversion is carried out by absorbing infrared light waves emitted by the isotope heat source and the radiation emitter, and if a spectral measurement device is designed on the surface of the thermophotovoltaic cell, the spectral utilization efficiency of the thermophotovoltaic cell can be reduced. According to the method disclosed by the invention, photovoltaic cells with various spectra are arranged in the areas with oblique radiation light, weak light intensity and unavailable thermophotovoltaic cell distribution, so that the thermophotovoltaic cell caneffectively utilize the area with the strongest light intensity of the radiation spectrum, and the absorption of the radiation spectrum is not influenced.

The invention relates to a process for preparing a neutron absorber for absorbing stray neutrons, and in particular relates to a processing technology for a boron carbide neutron absorber which is wide in raw material sources, low in processing cost and simple in process and can be applied in a collimator for effectively absorbing the stray neutrons. The processing technology comprises the following steps: 1), selecting raw materials; 2) selecting moulds; 3) stirring the raw materials; 4) pressurizing and mold-filling; 5) curing and molding; 6) demolding and molding. The boron carbide neutron absorber has easily-available raw materials, is simple in processing steps and low in cost; cold press molding is generally adopted, and the difficulty in the molding process is avoided; the molding or curing time can be greatly shortened on the premise of hot press, the curing speed is increased, and the yield is improved; moreover, according to the boron carbide neutron absorber prepared by processing, the good neutron absorption can be realized, and therefore, the processing technology for boron carbide neutron absorber is suitable for industrial development and can bring long-term economic benefit.

The invention discloses a zinc supplement nutritional drink, and belongs to the technical field of drinks. The zinc supplement nutritional drink is prepared by mixing the following components: 40-60 parts of skimmed milk powder, 0.1-0.2 part of lactobacillus bulgaricus, 0.1-0.2 part of streptococcus thermophilus, 0.2-0.5 part of bifidobacterium lactis, 0.2-0.4 part of lactobacillus acidophilus, 10-20 parts of zinc gluconate, 20-30 parts of honey, 2-6 parts of citric acid, 6-10 parts of amino acid, 10-15 parts of white granulated sugar, 0.5-1 part of flavor and 250-300 parts of drinkable mineral water. The drink is adopted as a zinc supplement carrier, is easy to absorb, and is suitable for people of different ages; the drink contains the honey, the citric acid and the amino acid, and contains abundant fructose, glucose and various vitamins and trace elements, so the nutrients are more comprehensive; and a milk product is free of phytic acid and cannot affect the absorption of zinc, sothe zinc supplement effect is greatly improved.

The invention belongs to the field of microorganisms, and in particular relates to a high-yielding γ-PGA bacillus subtilis and its application. The main technical scheme is as follows: a new strain of Bacillus subtilis is provided, the preservation number is: CGMCC NO.17215; its 16Sr DNA sequence is shown in SEQ ID NO 1. And based on the bacillus subtilis, an application method for improving soil environment and promoting plant growth is provided. Using the Bacillus subtilis provided by the present invention and its application method, high-yield γ-PGA can be obtained at a lower temperature, which greatly saves production energy consumption; effectively improves the growth performance of plants and reduces the absorption of heavy metals in soil by plants .

The invention relates to a bio-cellulose mask base fabric and a bio-cellulose mask. The bio-cellulose mask base fabric is prepared by the following method: (1) polylactic acid is dissolved in trichloromethane, so that spinning solution is prepared, and electrostatic spinning is carried out, so that a polylactic acid fiber felt is obtained; (2) chitosan is dissolved in aqueous acetic acid solution, so that chitosan solution is prepared, polyvinyl alcohol is then added, heated and stirred to be solved, and thereby impregnating solution is obtained; the polylactic acid fiber felt is immersed in the impregnating solution, negative-pressure deaeration is carried out for 10 to 20 seconds, redundant liquid is squeezed out after the polylactic acid fiber felt is taken out, the polylactic acid fiber felt is dried, and thereby a composite fiber felt is obtained; (3) the obtained composite filter felt is spunlaced to be reinforced, and thereby the bio-cellulose mask base fabric is obtained. The biocompatibility of the bio-cellulose mask base fabric is good, allergy, infection and swelling cannot be caused when the bio-cellulose mask base fabric is used, and by utilizing the antibacterial, inflammation-diminishing and pain-relieving properties of the chitosan surface layer, tiny wounds on the face can be promoted to be healed; the mechanical property is good, the breaking strength is good under both a dry state and a wet state, and therefore the bio-cellulose mask base fabric is convenient to process and use; the liquid-retaining capability is high, the air permeability is good, and the bio-cellulose mask base fabric is highly comfortable.

The invention relates to a slow / controlled-release preparation of tamsulosin hydrochloride and a preparation method thereof. The slow / controlled-release preparation comprises (i) a pill core which ismade of the following raw material in parts by weight: 135-165 parts of a microcrystal cellulose micro-pill cores; (ii) a slow-release layer which is made of the following raw materials in parts by weight: 0.36-0.44 parts of tamsulosin hydrochloride, 145-200 parts of a slow / controlled release material and 3.8-58 parts of a pore forming agent. Dissolution degree tests show that the slow / controlled-release tamsulosin hydrochloride preparation consisting of a blank pill core and a medicine-carrying slow / controlled release coating layer has a slow-release effect within a relatively pH value range(the pH value is 1.2, 4 or 6.8), has a pH value independent slow-release property, and is capable of solving the problem that absorption of tamsulosin hydrochloride is affected as the pH value of a gastrointestinal tract is changed if a patient takes foods, therefore, the slow / controlled-release preparation of the tamsulosin hydrochloride, which is provided by the invention, can be taken both before or after a meal, and is relatively convenient to take, and absorption of the tamsulosin hydrochloride is not affected.

The invention discloses a formula of a clindamycin hydrochloride capsule and a production method thereof. The formula consists of a main drug clindamycin hydrochloride and adjuvants such as a filling agent and a lubricant according to a certain mixture ratio; the filling agent is dry starch and / or dextrine; and the lubricant is one of or a plurality of micropowder silicon gel, magnesium stearate and insect wax. The production method comprises the following steps: the main drug and the adjuvants are directly mixed and encapsulated; the production method reduces production steps, lowers the production cost, and avoids the loss and damage of the drug, thus improving the bioavailability of the drug; the stability tests of retained samples of the clindamycin hydrochloride capsule prepared by the formula and the production method prove that the drug has stable quality.