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53results about How to "Good slippery" patented technology

Casting polypropylene film with controllable friction coefficient and preparation method thereof

The invention discloses a casting polypropylene film with a controllable friction coefficient and a preparation method thereof, belonging to the technical field of packaging materials. The casting polypropylene film sequentially comprises a corona layer, a middle layer and a heat-seal layer with a thickness ratio of (20-30) to (50-65) to (15-20). The corona layer is made from homo-polypropylene or polypropylene random copolymer, the middle layer is made from isotactic homo-polypropylene, and the heat-seal layer comprises 90wt%-98wt% of propylene copolymer, 1wt%-3wt% of adhesion resisting agent and 1wt%-7wt% of macromolecule slip agent, namely silicone master batch. The preparation method sequentially comprises the following steps: mixing materials, extruding to form a film, cooling for shaping, measuring thickness, aureoling, trimming, reeling, performing aging treatment, and slitting. The heat-seal layer is uniformly dispersed in main body resin by the macromolecule slip agent, and the slip agent is well compatible with the main body resin due to high molecular weight, and thus a film surface friction coefficient is prevented from being changed by migration of the macromolecule slip agent due to temperature of a storage or usage environment.
Owner:永新股份(黄山)包装有限公司

Polyvinyl chloride (PVC) trade mark producing process

The invention provides a polyvinyl chloride (PVC) trade mark producing process. The process comprises the following steps of: performing die sinking according to the shape of a trade mark, wherein a producing mold comprises a mold surface plate and a mold bottom plate which are mutually folded to each other; dividing a prepared ingredient into surface layer liquid materials and bottom layer liquid materials, and adding various colorants to match colors of various surface layer liquid materials and bottom layer liquid materials respectively; dispensing the surface layer liquid materials in various corresponding colors to corresponding positions of the mold surface plate on which trade mark surface patterns are formed by using dispensing equipment; baking the mold on which the surface layer liquid materials are dispensed, and cooling after shell fabrics are baked; heating a backing material at a time; folding the mold bottom plate and the mold surface plate, and injecting the heated bottom layer liquid materials into the mold bottom plate through a perforated hole of the mold bottom plate; and baking the integral mold subjected to injection molding, and cooling. By the process, the liquid materials are utilized; the conventional step in which aids are required to be added and the conventional granulation step are eliminated; and simultaneously, the color stability and the secondary processing performance of products are improved.
Owner:GUANGDONG LIXIN INTELLIGENT TECH CO LTD

High-strength easily-erased resin pencil lead and preparation method thereof

The invention relates to a high-strength easily-erased resin pencil lead and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing, by mass, 92-99 partsof thermoplastic resin, 1-8 parts of inorganic nanoparticles and 0.5-2.5 parts of a processing aid in a mixer, and extruding and granulating the obtained mixture by a parallel twin-screw extruder to prepare reinforced thermoplastic resin particles; and uniformly mixing 15-50 parts of the reinforced thermoplastic resin particles, 40-80 parts of graphite, 5-18 parts of a lubricant and 1-5 parts of asurfactant, drying and dehydrating the obtained mixture, kneading and mixing the dried mixture by an internal mixer, granulating the kneaded mixture in a single-screw extruder, molding obtained granules by an extrusion molding machine, and cutting the molded granules to prepare the pencil lead with a suitable length. The resin pencil lead prepared in the invention has the advantages of high strength, easiness in being erased, good slippery and good coloring property, and the preparation method has the advantages of simple process, low cost, and realization of continuous large-scale production. The pencil lead can be widely used in pencils for writing, drawing and painting.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI +1

Bottom blue-developing thermosensitive label and preparation method thereof

The invention relates to the technical field of thermosensitive labels, in particular to a bottom blue-developing thermosensitive label and a preparation method thereof. The bottom blue-developing thermosensitive label comprises a bottom layer and a dye layer which are sequentially arranged from bottom to top, wherein the bottom layer is carbon-source-free paper, and the dye layer is made of developing dye; the color development dye comprises the following raw materials in parts by weight: 25-30 parts of a colorless buffer toner, 10-15 parts of a color developing agent, 3-8 parts of a flattingagent A, 3-5 parts of a defoamer A, 2.5-3.0 parts of an aqueous polytetrafluoroethylene modified wax dispersion, and 30-35 parts of a solvent A. The dye layer of the bottom blue-developing thermosensitive label can change the color developing of the printed characters in a printing state of a thermosensitive printer, can improve the withered monotonous sense of only single black characters at present and can improve the color development effect. The preparation method of the bottom blue-developing thermosensitive label has the advantages of the simple operation, the easy control, the high production efficiency and the stable quality, and can be used for mass production.
Owner:GUANGDONG TENGEN IND GRP CO LTD

Efficient battery material sintering furnace with push plate guide sliding function

An efficient battery material sintering furnace with a push plate guide sliding function comprises a furnace shell, a furnace lining, an upper partitioning beam and a lower partitioning beam, and is characterized by further comprising a push plate guide sliding mechanism, wherein the push plate guide sliding mechanism consists of a left limiting guide track, a right limiting guide track and a group of middle guide tracks; cross sections of the left limiting guide track and the right limiting guide track are L-shaped; cross sections of the group of middle guide tracks are inverted-T-shaped; a left limiting guide track groove is formed in one side, which faces the right limiting guide track, of the left limiting guide track; a right limiting guide track groove is formed in one side, which faces the left limiting guide track, of the right limiting guide track; a position, which corresponds to the left end of the lower partitioning beam, of the left limiting guide track is fixed with the lower partitioning beam; a position, which corresponds to the right end of the lower partitioning beam, of the right limiting guide track is fixed with the lower partitioning beam; the group of middle guide tracks are positioned between the left limiting guide track and the right limiting guide track and are fixed with the lower partitioning beam; the upper partitioning beam comprises a central insert block, a left insert block, a right insert block and a pair of insert block support columns. Collapse can be avoided; temperature control and atmosphere uniformized effects of adjacent sintering temperature regions are ensured; energy is saved; and a push plate and side walls of a furnace chamber are protected.
Owner:SUZHOU HUIKE EQUIP CO LTD

Preparation method of regenerated cellulose/inorganic nano-material composite film

The invention discloses a preparation method of a regenerated cellulose / inorganic nano-material composite film. The preparation method comprises the steps of firstly, preparing water mixed suspensionof an inorganic nano-material, mixing the prepared water mixed suspension with an ionic liquid aqueous solution, and carrying out dewatering concentration treatment on the obtained mixture; then, mixing the concentrated ionic liquid mixed suspension of the inorganic nano-material with a cellulose raw material, and carrying out dewatering and defoaming treatment to obtain a uniform and transparentcellulose / inorganic nano-material solution; finally, regenerating the cellulose / inorganic nano-material solution for forming a film so as to obtain the regenerated cellulose / inorganic nano-material composite film. The preparation method provided by the invention overcomes the defects that the traditional regenerated cellulose film is low in slippery degree, poorer in softness, poor in service performance under the conditions of low temperature and high humidity, and the like, and improves the quality of the cellulose film; furthermore, the preparation method solves the problems that the traditional regenerated cellulose film is high in energy consumption and pollution during preparation.
Owner:山东中科恒联生物基材料有限公司 +1
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