116results about How to "Guaranteed not to deteriorate" patented technology

The invention discloses a preservation method of cordyceps sinensis, which comprises the steps of sequentially cleaning the head part, stroma and polypide of the cordyceps sinensis by use of linear running water; soaking the cleaned cordyceps sinensis in a 0.9% acid sodium chloride for 5-8 minutes, and draining; performing quick cooling treatment on the cordyceps sinensis for 5-12 hours at -75 DEG C; putting the cordyceps sinensis after the quick cooling into a vacuum refrigeration box at (-5)-(-25) DEG C, and starting the refrigeration gas self-control equipment in the refrigeration box, wherein the refrigeration gas self-control equipment controls a gas pump to introduce and / or extract oxygen, nitrogen and carbon dioxide gas into / out of the refrigeration box. By adopting the preservation method disclosed by the invention, the cordyceps sinensis can meet the sanitary requirement of direct eating; after long-time storage, the nutritional ingredients and activity of the cordyceps sinensis are barely lost.

The invention relates to a stirring type sample mixing device. A magnetic coupling rotating mechanism and a retractable multistage rotating impeller are mounted on the device; and a stirring shaft of the retractable multistage rotating impeller can extend and retract along the motion of a floating piston. The magnetic coupling rotating mechanism can ensure that a motor output shaft can be separated from the stirring shaft without contact, which basically solves the problems that the complex system solution in the sample mixing device needs to be stirred and the stirring shaft needs to be sealed dynamically when the device is in a full-closed state and guarantees the uniformity and the stability of the complex system solution and the accuracy of the final experimental result.

The invention discloses an environment-friendly and energy-saving courtyard type rain water collecting, treating and recycling system, and specifically relates to the environment-friendly and energy-saving courtyard type rain water collecting, treating and recycling system which is suitable for an arid area and a semi-arid area. The environment-friendly and energy-saving courtyard type rain water collecting, treating and recycling system is characterized by comprising a rain water collecting pool, a flow distributing well, a flow releasing pool, a constructed wetland, a rain water storing pool, a sand filtering pool and a clean water pool, wherein the upper-layer rain water collecting pool, the flow distributing well, the constructed wetland and the sand filtering pool are connected in sequence, the lower-layer flow releasing pool, the rain water storing pool and the clean water pool are connected in sequence, the flow releasing pool is located under the rain water collecting pool, the rain water storing pool is located under the flow distributing well and the constructed wetland, and the clean water pool is located under the sand filtering pool. According to the environment-friendly and energy-saving courtyard type rain water collecting, treating and recycling system disclosed by the invention, the occupied area is small, the energy consumption is low, the operating cost is low, and the maintenance is simple; the functions of beautifying a courtyard and purifying air are obtained as green ecological plants are planted on the constructed wetland; the courtyard waterlogging can be reduced, environmental pollution caused by initial rain water can be reduced, the living standard of a farmer can be increased, and meanwhile, the rural ecological environment can also be effectively improved.

A double-layer hollow capsule comprises a gelatine layer and is characterized in that a stomach soluble hollow capsule formed by an isolation layer made of stomach soluble membrane forming materials is arranged on the inner wall of the gelatine layer. A multi-layer enteric hollow capsule comprises a gelatine layer and is characterized in that an enteric hollow capsule formed by an isolation layer made of enteric membrane forming materials is arranged on the inner wall of the gelatine layer. The isolation layers can be resistant to acidity and alkalinity of medicines to protect the gelatine layers and ensure that the capsules do not deteriorate during storage periods.

The invention discloses a freezing, thawing and refrigerating larder capable of reusing energy, comprising a box body, a liquid storage bucket, a filter, a capillary, a compressor and a condenser, wherein the compressor and the condenser are arranged out of the box body; the box body is composed of a freezing chamber and a thawing chamber; and the freezing chamber is provided with an evaporation tube b, and the thawing chamber is provided with an evaporation tube a and a condensation tube. The above components are connected with the inlets and the outlets of three three-way magnetic valves a, b and c, and the three-way magnetic valves a, b and c are connected with a temperature controller arranged in a thawing box. The invention realizes the conversion of thawing and refrigerating functions of the thawing chamber by switching the three-way magnetic valves, and the freezing chamber normally works; when the thawing function is started, heat energy emitted from the condensation tube in the thawing chamber is used for thawing frozen food; and after food is thawed and the temperature in the thawing chamber reaches another set temperature value of the temperature controller, the invention automatically converts into the refrigerating state to prevent food from deteriorating at higher temperature.

The invention discloses a preservation method of food in a pot. A control device reads the working state of the pot, and if the pot is in a heat-preserving state, the preservation method comprises the following steps: according to the outside-pot environment temperature, setting the heat-preserving temperature; keeping the inside-pot actual temperature constant within a preset fluctuation range of the heat-preserving temperature by using a thermostat; turning on ultraviolet lamps; according to the environment, setting the heat-preserving temperature, and conducting ultraviolet sterilization and disinfection, so as to ensure that the food does not deteriorate and keep good taste of the food. The invention further discloses the pot. The pot comprises a pot body, a plurality of ultraviolet lamps, a temperature detection device, the thermostat and the control device, wherein the ultraviolet lamps, the temperature detection device and the thermostat are electrically connected with the control device; the control device reads the working state of the pot, and if the pot is in the heat-preserving state, the control device presets the heat-preserving temperature according to the outside-pot environment temperature fed back by the temperature detection device and controls thermostat to keep the inside-pot actual temperature constant within the preset fluctuation range of the heat-preserving temperature. According to the heat-preserving temperature set based on the environment, the ultraviolet lamps disinfect and sterilize the food so as to ensure that the food does not deteriorate and keep good taste of the food.

The invention relates to a combination containing lutein ester and a preparation method thereof. The preparation method comprises the steps of: decreasing the temperature of solution of a marigold extract solvent A to 20-28 DEG C, maintaining the temperature for 0.5-4 hours, decreasing the temperature to 5-18 DEG C, maintaining the temperature for 0.5-4 hours and filtering to obtain a filter cake I; and under the condition of 30-70 DEG C, dissolving the filter cake I in a mixed solvent A, agitating for 0.5-5 hours, decreasing the temperature to 10-28 DEG C, keeping the temperature for 0.5-5 hours, filtering to obtain a filter cake II and conducting subsequent steps, wherein the mixed solvent A is the mixed solvent of methyl acetate, acetic ether, n-propyl acetate or butyl acetate and C1-3 alcohol. By adopting the method provided by the invention, the process is simple and feasible, the industrialization is easy to realize, all operations are conducted at low temperature and the stability of the product is guaranteed. The yield of the obtained product highly reaches more than 25 percent, the content of total esters in the product is more than 70 percent, the content of trans-lutein highly reaches 90-93 percent and the bioactivity of the product during use is greatly improved.

The invention discloses a method for synthesis of carbamate under mild conditions. Urea and methanol are used as raw materials, and in the presence of a solid oxide catalyst, a sweeping gas is continuously introduced during the reaction process, so that methyl carbamate is synthesized under mild conditions. Under the optimized reaction conditions, the conversion rate of urea is more than 90%, the selectivity of methyl carbamate is more than 99.9%, and the decomposition rate of urea is less than 1%. The method has advantages of simple preparation method of the catalyst, mild reaction conditions, high selectivity of methyl carbamate, less urea decomposition, no deterioration during the reaction process, easy separation of the catalyst, good catalyst repeatability and the like.

The invention relates to the technical field of copying machine equipment and discloses an ink box for a copying machine. The ink box comprises an ink box body and an air guiding box. The ink box bodyis provided with an ink outlet. The air guiding box is provided with air inlets and an air outlet. The ink box body is provided with an air supply box. A guide pipe communicates with the air supply box and is provided with a first three-way valve. The first three-way valve communicates with the air inlets. A rotating shaft is connected into the air guiding box in a rotary manner. A turbine is connected to the rotating shaft in a sleeving manner. One end of the rotating shaft penetrates the air guiding box and extends into the ink box body. A sliding sleeve is connected to the rotating shaft in a sleeving and threaded manner. A stirring plate is fixedly connected to the sliding sleeve. A cavity is formed in the inner wall of the ink box body. A vortex tube is fixedly connected to the ink box body, wherein the vortex tube communicates with the air outlet. The hot air end and the cold air end of the vortex tube each communicate with the cavity. A second three-way valve is connected between the hot air end of the vortex tube and the cavity. A third three-way valve is connected between the cold air end of the vortex tube and the cavity. By means of the ink box, the problem that in theprior art, due to the fact that ink in an ink box is frozen, normal coping cannot be conducted is solved.

The invention discloses a sand mill with double cooling systems. The sand mill comprises a bearing pedestal, a grinding cylinder and a grinding drum which is arranged in a cavity of the grinding cylinder, wherein a main shaft which is arranged in the bearing pedestal is fixedly connected with the grinding drum; the grinding cylinder consists of an outer sleeve and an inner sleeve; and a cooling water pipe is arranged in a sandwich layer between the outer sleeve and the inner sleeve. Through the spiral tubular cooling water pipe on the grinding cylinder, the main shaft, an internal cooling passage of the grinding drum and a cooling oil chamber at the periphery of the main shaft, multi-cycle cooling is performed on the sand mill by utilizing cooling water and cooling oil; comprehensive enhanced cooling is performed on the main shaft, the grinding drum and a material; and thus, the operation of the sand mill is protected, the material is protected from being decomposed and deteriorated, and the quality of the material is improved.

The present invention relates to a new year cake composition and a noodle composition containing fish scale collagen and edible plant extracts. According to the new year cake composition and the noodle composition, 1000 parts by weight of grains contains 3-7 parts by weight of fish scale collagen powder and 5-10 parts by weight of edible plant extracts.

The invention discloses a preparation method of coconut oil by treating coconut milk with pawpaw juice, which is characterized in that: 60-90 percent maturated fresh pawpaw are prepared and made into pawpaw juice while the fresh coconut meat is mashed and pressed into coconut milk; then water, pawpaw juice and pectinase are added into coconut milk, mixed together and then treated with zymohydrolysis in heat insulation; after standing, the solution is divided into oil layer, emulsion layer, serum layer and precipitation layer which are taken out respectively; a oil emulsion mixture obtained by mixing the oil layer and the emulsion layer is added with water and then treated with zymohydrolysis in heat insulation, added with white sugar and treated with standing for stratification; the upper coconut oil layer which is separated from the lower water layer is washed with water and filtered and then treated with vacuum drying to produce high-quality coconut oil which contains Beta-carotene. The invention has simple technical process, low cost, high oil-production efficiency, high comprehensive utilization rate of side products, low pollution, meanwhile the coconut oil produced which contains natural Beta-carotene has beautiful colors and long guarantee period.

The invention provides a cold chain logistics information platform based on smart phone terminal. The platform comprises a refrigeration room arranged on a transportation vehicle. The refrigeration room is filled with food and is provided therein with a refrigeration control module, a temperature sensor, a signal transmission module, a GPS positioning module, and a vehicle number acquisition module. The refrigeration control module, the temperature sensor, the signal transmission module, the GPS positioning module, and the vehicle number acquisition module are connected with the smart phone terminal respectively. The cold chain logistics information platform based on smart phone terminal provided by the invention is capable of controlling the refrigeration temperature inside the refrigeration room based on the real-time transportation time and consuming the least energy while ensuring the food does not go bad.

The invention discloses a stabilizer for trichloroethylene. The stabilizer consists of an organic base, an antioxidant and an organic solvent, wherein the organic base is triethanolamine; the antioxidant is 2-isopropane, thymol and epichlorohydrin; and the organic solvent is isobutanol and diethylene glycol. The stabilizer disclosed by the invention has the following advantages: the composite stabilizer formulation is used for stabilizing trichloroethylene and ensuring that trichloroethylene does not deteriorate within 180 days, and simultaneously, the decomposition speed of trichloroethylene in a use process is reduced, and the use time is greatly prolonged. By utilizing the stabilizer, trichloroethylene can meet the requirement of the top-grade electronic cleaning industry on trichloroethylene quality, cannot damage and erode cleaned components and achieves the purpose of replacing imported trichloroethylene.

The invention discloses a masking liquid for a dental zirconium oxide ceramic. The masking liquid comprises a masking agent, a color indicating agent, an additive and deionized water. The masking liquid can reduce the transparency in a tooth restoration without affecting the color effect out of the restoration. Meanwhile, the invention also discloses a preparation method of the masking liquid forthe dental zirconium oxide ceramic. The preparation method has the obvious advantages of simple process, low manufacturing cost and good repeatability. Moreover, the invention also discloses application and an application method of the masking liquid for the dental zirconium oxide ceramic. The problem that the transparency in the dental zirconium oxide ceramic is too high can be improved obviously, so that the finally obtained tooth restoration can obtain a natural emulational effect.

The present invention relates to a method for obtaining algae extracts, characterized in that it comprises at least the following steps: a) pre-treating an algae sample; b) rapidly heating the pre-treated algae sample; c) applying a pressure greater than or equal to 1 bar; d) instantaneously reducing a pressure to less than or equal to 1 bar; and e) regaining the products obtained in d) in liquid, solid and / or gaseous form. The invention also covers the use of the algae extract products obtained by implementing this method.

The invention discloses a sterilizing and deodorizing device and a machine tool cutting fluid treating device, and belongs to the field of cutting fluid treatment. The sterilizing and deodorizing device comprises a medium cavity body, wherein a medium cavity for accommodating a medium is arranged inside the medium cavity body, and an ultraviolet light source is arranged at the outer side of the medium cavity; a photocatalyst coating is arranged on the inner wall of the cavity wall of one side, near the ultraviolet light source, of the medium cavity, and the two opposite ends of the medium cavity body are respectively provided with a first medium passing port for allowing the medium to flow into the medium cavity, and a second medium passing port for allowing the medium to flow out of the medium cavity. The sterilizing and deodorizing device disclosed by the invention can be connected on a cutting fluid circulating pipeline in series, and can achieve the on-line and timely treatment ofthe cutting fluid by using the circulation pump of a machine tool without additionally installing a water pump; the sterilizing and deodorizing device disclosed by the invention has double sterilization functions of the sterilization of ultraviolet rays and the sterilization of a photocatalyst under the action of ultraviolet rays, so that bacteria are difficult to breed and grow, thereby achievingthe purposes of deodorizing and sterilizing and ensuring that the cutting fluid does not deteriorate.

The invention discloses a method for preparing vitamin A microcapsules continuously and stably, comprising the following steps: Adding vitamin A crystals and an antioxidant in a crystal melter continuously according to a certain ratio under the protection of nitrogen to prepare vitamin A melting oil containing the antioxidant; pumping the above melting oil in a supergravity rotary packed bed emulsifier by a pump, and pumping aqueous solution containing modified gelation starch into the above supergravity rotary packed bed emulsifier after deoxidation treatment to obtain vitamin A emulsion at the outlet of the supergravity rotary packed bed emulsifier; and atomizing and spraying the emulsion in a cooled starch bed for pelletizing, and performing fluidization drying and gelation treatment in a fluidized bed by taking nitrogen as a drying medium to obtain the stable-type vitamin A microcapsules. The invention has the advantage of capability of continuous production, and has good embedding effect due to adopting the modified gelation starch, pelletizing and gelation treatment, thus the product has good storage stability.

The invention discloses a meropenem raw medicine which is characterized in that the content of meropenem in the raw medicine is 98.5-101.0% by weight based on anhydride; the content of the impurity A and impurity B in the related substances of the raw medicine is not greater than 0.25% respectively; the content of any unknown single impurity is not greater than 0.05%; the total content of other impurities except the A and B is not greater than 0.2%; the acetone residue is not greater than 400ppm and preferably not greater than 100ppm. The invention also discloses a meropenem pharmaceutical composition for injection, and the pharmaceutical composition takes the meropenem raw medicine provided by the invention as an active ingredient and has excellent stability. The meropenem raw medicine provided by the invention has the advantages of high purity, clear impurity condition, low solvent residue, good solubility and good long-term storage stability, and can guarantee the effectiveness and safety of the medicine. In the invention, the process is simple and compact, the cost is remarkably low, and the control is simple. The invention is suitable for industrial large-scale aseptic production of the meropenem raw medicine and pharmaceutical preparation.

The invention relates to an electro-spinning nanofiber mask with a core-shell structure and a preparation method thereof and belongs to the field of natural cosmetics. The electro-spinning nanofiber mask is prepared from, by weight, 5-10 parts of bletilla roots, 5-10 parts of radix paeoniae alba, 5-15 parts of ginseng, 5-10 parts of mulberry fruits, 5-10 parts of malva sylvestris, 5-10 parts of alkanna roots, 1-3 parts of nutrients, 0.5-2 parts of hyaluronic acid and 0.5-3 parts of collagen. The electro-spinning nanofiber mask has the advantages that dirt in skin can be completely removed, the mask can be better attached to the skin, the skin absorbs functional matter more rapidly, whitening, freckle removing, inflammation diminishing, sterilizing and anti-aging repairing are comprehensively combined, and the requirements of people for multiple effects of the mask are met.

The invention discloses a vegetated ditch rainwater drainage pipe gallery system. The vegetated ditch rainwater drainage pipe gallery system comprises roadbed stones, a grading soil layer, geotechnical cloth, grading packing, rainwater perforated strainers, double-wall corrugated pipe inspection wells, arched regulation and storage equipment, an anti-seepage film and mud disposal equipment. The multiple roadbed stones are located at the upper ends of the left side and the right side of a vegetated ditch correspondingly. A foundation pit is longitudinally excavated in the lower end of the middle of the vegetated ditch. The arched regulation and storage equipment is longitudinally mounted in the foundation pit. One set of mud disposal equipment and one double-wall corrugated pipe inspectionwell are mounted at the lower end and the upper end of the arched regulation and storage equipment every multiple meters. Each rainwater perforated strainer is mounted at the upper end of the corresponding double-wall corrugated pipe inspection well. The anti-seepage film and the grading packing are sequentially laid at the upper end of tamped soil. The geotechnical cloth and the grading soil layer are sequentially laid at the upper end of the grading packing. Green plants are planted on the grading soil layer. A construction method of the vegetated ditch rainwater drainage pipe gallery systemcomprises the following steps of 1, excavation of the foundation pit; 2, construction of a geotechnical material; 3, mounting of the arched regulation and storage equipment, and laying of the gradingpacking; and 4, construction of a plantation layer. By means of the vegetated ditch rainwater drainage pipe gallery system and the construction method, rainwater can be effectively utilized.

The invention discloses a concrete exposed aggregate agent and a preparation method thereof and belongs to the field of buildings. The concrete exposed aggregate agent comprises the following components in parts by mass: 15-25 parts of white sugar, 5-8 parts of sodium citrate, 1-3 parts of a penetrating agent, 0.5-1 part of an anti-rust agent, 0.5-2 parts of a bactericide and 50-70 parts of deionized water. The concrete exposed aggregate agent disclosed by the invention is mainly applied to concrete aggregate exposed treatment, methods for milling, planing, chiseling, filing and the like are not need during treatment of buildings, concrete constructed joints, tail ends or continuous construction, the formed aggregate exposed rough and solid concrete surface can be connected with fresh concrete into a whole, and the joint interface is kept firm and crack-less.

The invention discloses a preservation method of cordyceps sinensis, which comprises the steps of sequentially cleaning the head part, stroma and polypide of the cordyceps sinensis by use of linear running water; soaking the cleaned cordyceps sinensis in a 0.9% acid sodium chloride for 5-8 minutes, and draining; performing quick cooling treatment on the cordyceps sinensis for 5-12 hours at -75 DEG C; putting the cordyceps sinensis after the quick cooling into a vacuum refrigeration box at (-5)-(-25) DEG C, and starting the refrigeration gas self-control equipment in the refrigeration box, wherein the refrigeration gas self-control equipment controls a gas pump to introduce and / or extract oxygen, nitrogen and carbon dioxide gas into / out of the refrigeration box. By adopting the preservation method disclosed by the invention, the cordyceps sinensis can meet the sanitary requirement of direct eating; after long-time storage, the nutritional ingredients and activity of the cordyceps sinensis are barely lost.

The invention provides a lubricating grease composition for seat slide rails of an automobile. The composition comprises 10 to 180 parts of base oil and 10 to 30 parts of a thickening agent, wherein, the thickening agent is dipolyurea or tetra-polyurea, and the base oil is mineral oil and / or synthetic oil. The lubricating grease composition provided in the invention has good heat resistance, can maintain good lubricating performance at a temperature in a range of -50 to 140 DEG C, produces no noise and has excellent wear resistance, anti-corrosion performance and anti-aging performance.

The invention relates to the field of processing of food and beverage, and particularly relates to mango beverage and a manufacture method thereof. The mango beverage is prepared from the following raw materials in parts by weight: 50-70 parts of mango juice, 20-30 parts of ginkgo leaf juice, 10-20 parts of cherry juice, 3-10 parts of carrot juice, 3-15 parts of sugar, 0.03-0.2 part of citric acid and 350-480 parts of water. The ginkgo leaf juice is prepared by the steps of washing fresh ginkgo leaves, drying the washed ginkgo leaves, crushing the dried ginkgo leaves, carrying out reflux extraction on the crushed ginkgo leaves, heating at 65-75 DEG C, distilling, filtering, concentrating under the pressure of -0.2MPa to -0.06MPa, and dissolving in water, thereby obtaining a stock solution. The mango beverage has a unique formula, is prepared by a simple process and from the readily available materials which are common plants, is suitable for all kinds of people to drink, is rich in nutrients, is safe and environment-friendly, and has extremely wide market prospects. The shelf life of the mango beverage is as long as 1-1.5 years, and the mango beverage does not go bad within the shelf life. The mango beverage has remarkable effects of maintaining beauty, promoting hair growth and reducing blood pressure.

The invention relates to a preparation method of canned cherry tomatoes. The preparation method comprises the following steps of removing stems; performing classification; making crosses; blanching treated cherry tomatoes in hot water of 95-98 DEG C for 10-20s, or steaming the treated cherry tomatoes with steam of which the temperature is 93-95 DEG C for 1-1.5min so that blanching is realized; cooling the blanched cherry tomatoes; peeling the cooled cherry tomatoes; cleaning the peeled cherry tomatoes; canning the cleaned cherry tomatoes; making soup: uniformly mixing three materials including white sugar, citric acid and purified water to obtain a soup base, wherein the sugar degree of the soup base is 14-18%, and pH of the soup base is 3.8-4.5, and boiling over the soup base for 8-15 minutes; adding the soup: maintaining the temperature of the soup base to be 90 DEG C or above, and pouring the soup base into can bodies; sealing the can bodies; and performing sterilization and cooling: sterilizing the canned cherry tomatoes of which the net weight is 3000g at the temperature of 92-94 DEG C for 22-26min, sterilizing the canned cherry tomatoes of which the net weight is 850g at the temperature of 92-94 DEG C for 18-22min, wherein the core temperature of the canned cherry tomatoes is 88-90 DEG C, well controlling the sterilization temperature and the sterilization time and detecting the core temperature of sterilized canned cherry tomatoes in a timing manner; and after the canned cherry tomatoes are sterilized, rapidly cooling the temperature of the canned cherry tomatoes to 38 DEG C or below, and besides controlling the residual chlorine of discharged cooling water to be at 0.5-0.8ppm so that the canned cherry tomatoes are obtained. The canned cherry tomatoes have the advantages of being good in mouth feel, high in reservation of nutrient components, and long in long quality guarantee period, and have original tomato mouth feel.

The invention discloses non-woven fabric containing flaky natural flowers and a production technology of the non-woven fabric and belongs to the technical field of non-woven fabric. The non-woven fabric containing flaky natural flowers comprises a non-woven fabric fiber layer and multiple flaky flowers scattered on the non-woven fabric fiber layer; each flaky flower is covered with multiple fibersin a net shape, and two ends of the fibers are embedded in the non-woven fabric fiber layer after the fibers span at least one part of the flaky flower bodies, so that the flaky flowers are fastenedin the non-woven fabric fiber layer. The non-woven fabric material can has effects of natural flowers without addition of essence, and flaky or blocky natural flowers can be dispersed in the non-wovenfabric surface layer uniformly and the natural forms of the flowers can be kept through reasonable setting of process sequence and parameters.

The invention relates to the technical field of packaging materials, in particular to a high-barrier antiskid packaging film and a preparation method thereof. The packaging film is composed of a CPE film, a PET film, a modified VMPET film and a PE film which are sequentially layered, the CPE film and the PE film are prepared in a three-layer co-extrusion forming mode, and one face of the VMPET film is reversely plated with an aluminum-plated layer formed by metal aluminum, so that the barrier property, the aluminum layer adhesive force and the corona value attenuation period are all obviously improved, and under the severe high-humidity and high-temperature conditions, the interface of the packaged PET / VMPET aluminum plating layer is not layered, so that the integrity of the package is ensured, and the contents are not deteriorated; the packaging material with the CPE (heat-resistant) / PET (polyethylene terephthalate) / modified VMPET / PE (low-temperature) composite structure has the characteristics of balanced internal and external structures, flat bag shape, soft buffering of the outer-layer CPE, puncture and falling resistance, high static friction and good stacking and transporting effect, the problems of stacking slipping and unsmooth transportation are solved, and the whole large package is high in tearing strength and puncture resistance, and can resist falling and impact bag breaking.

The invention discloses a closed-type atomizer for an electronic cigarette and a production method of the closed-type atomizer. The closed-type atomizer comprises a cigarette holder, a shell, a gas guide tube and an atomization device. The atomization device comprises an atomization core, an electrode, push rod ejection pins and a base. The atomization core is connected with the electrode, and isarranged in the base. A plurality of tar inlet channels for allowing tobacco tar to flow in are arranged on the base. The atomization core is communicated with the tar inlet channels. The push rod ejection pins are arranged in the tar inlet channels. Liquid stop covers for sealing the tar inlet channels are arranged at the top ends of the push rod ejection pins, so that the tobacco tar does not enter the atomization core before use or during storage of the electronic cigarette, deterioration of the tobacco tar is avoided, and consumer experience is improved. Influences on sales of the electronic cigarette by tobacco tar leakage due to environment factors and the like can be avoided. The closed-type atomizer is simple in structure and convenient to use, provides better experience to customers and is suitable for wide popularization.

The invention discloses a method for cold compressing molding tube fittings, which comprises: first, plating surface coats on inner and outer surface of needed tube, to attain a half-finished product whose thickness is uniform and the size meets demand; surface treating the half-finished product; solid solution treating the half-finished product; finishing said half-finished product, to attain the final product. The invention has high efficiency and high quality without changing the property and chemical components of former material. And it can be used in the treatment of variable tube fittings.