32results about How to "Fine crease" patented technology

The invention relates to a cover, an insert and a floor, and a method for manufacturing a tray therefrom. The cover comprises a planar rectangular panel with a flap on each edge, a portion of each flap being connected to an adjacent flap with a gusset, each flap having a tab at the free edge thereof, wherein the floor comprising a planar rectangle which is substantially the same size as the panel, and wherein the insert comprising a planar rectangular base which is substantially the same size as the panel, the base having a wall portion on each edge, each flap being substantially twice the size of each wall portion, wherein in use the base is aligned with the panel, the wall portions are upright, the flaps extend around the respective wall portions and the tabs are folded onto the base, the floor being aligned with the base and the panel, and being bonded to the tabs. A tray so arranged is less expensive and stronger than prior art trays. The cover is not glued to the insert, which reduces manufacturing costs and provides greater versatility in decoration options for the cover.

The invention provides polyurethane resin. The polyurethane resin is mainly prepared from, by weight, 150 parts to 200 parts of polyols, 10 parts to 45 parts of chain extender, 100 parts to 150 parts of isocyanate, 0.1 part to 10 parts of antioxidant, 0.1 part to 1 part of reaction terminator, 500 parts to 800 parts of solvent and reaction activity regulator. The polyols contain 40 percent to 70 percent of PTMG, 0 to 45 percent of polyester polyol, 0 to 15 percent of polycarbonate diol, 0 to 25 percent of polycaprolactone diol and 5 percent to 10 percent of modified polydimethylsiloxane diol. The invention further provides a preparation method and application of the polyurethane resin. Tiny and even cells can be formed when the prepared polyurethane resin is used for processing superfine fiber synthetic leather, and thus the produced superfine fiber product can have fine fold lines and plump fleshy feeling.

A surface-adhesive-rule technology (SART) method and system for creating a surface-adhesive-rule die and counter die for pre-treating cardboard. Wherein the pre-treating comprises: creasing and/or cutting and/or embossing the cardboard. The SART system may comprise: a rule-drawer having one or more cartridges, one or more nozzles, and one or more pressure actuator; a leading mechanism that carries the rule-drawer; and a controller that controls the rule-drawer and the leading mechanism according to a layout of a surface-adhesive-rule die. Each cartridge may comprise flexible materiel and may be associated with one of the nozzles having an orifice with a profile. Further the leading mechanism moves the rule-drawer and the rule-drawer draws a plurality of surface-adhesive rules from the flexible material having an attribute to reserve the shape of the orifice profile through which it is deposited on the surface of a die's body according to commands obtained from the controller.

The invention discloses high solid content two-liquid type adhesive layer polyurethane resin and a preparation method thereof. The high solid content two-liquid type adhesive layer polyurethane resin is prepared from the following raw materials: polyhydric alcohols, diisocyanate, a sealing agent and a solvent, wherein the polyhydric alcohols comprise a polyhydric alcohol A and a polyhydric alcohol B; the polyhydric alcohol A is selected from polyadipic acid ethylene glycol and butanediol copolyester diol, polyadipic acid diglycol ethylene glycol copolyester diol and polytetrahydrofuranether diol or polytetrahydrofuran ethylene oxide copolyether diol; the polyhydric alcohol B is a polyhydric alcohol which contains a side group and is liquid at 20 DEG C. By using part of polyhydric alcohols which are liquid at normal temperature, polyurethane resin with the solid content of 80-90% is obtained, and the use amount of the solvent is reduced; when synthetic leather is prepared, by adding a marketed polyfunctionality compound which can be reacted with a isocyanate group as a crosslinking agent (such as triethylene tetramine) into the resin, smooth kink marks of the synthesized leather can be realized without changing the existing process.

The invention discloses a piece of high-simulation superfine fiber nylon-polyurethane base cloth and a preparation method thereof. The high-simulation superfine fiber nylon-polyurethane base cloth is prepared from sea-island fiber formed by composite cospinning of nylon 6 and high pressure polyethylene, and a non-woven fabric prepared by a needling method, wherein the weight ratio of nylon 6 to high pressure polyethylene is (35-45): (65-55). The product obtained by the preparation method disclosed by the invention is thick in fleshy feeling, fine and smooth in fold lines and high soft in hand feeling, and is close to the texture of cowhide, so that the product can be widely applied to the field of substituting the cowhide.

The invention discloses imitation sheepskin ultrafine fiber polyurethane synthetic leather and a manufacturing method thereof. The manufacturing method comprises the following steps: (1) applying oil to raw base cloth A and drying to obtain base cloth B; (2) bonding a sizing agent of surface layer dry-method polyurethane resin to the base cloth B obtained in the step (2) through a polyurethane bonder by a release paper dry-method film-shifting and surface-making technology, and stripping release paper to obtain the imitation sheepskin ultrafine fiber polyurethane synthetic leather. According to the method, the moderately soft base cloth is selected, the base cloth subjected to oil application is high in softness and leather feel, and the surface-overlaid ultrafine fiber polyurethane synthetic leather obtained through a dry-method surface-making process is good in fold lines and smooth feel. The imitation sheepskin ultrafine fiber polyurethane synthetic leather provided by the invention is exquisite in fold lines and smooth in hand feel, has a very good genuine leather feel and successfully solves the problem that exquisite fold lines and high softness of conventional imitation genuine leather ultrafine fiber synthetic leather cannot be compatible.

The invention provides environment-friendly space leather and a preparation method and application thereof. The environment-friendly space leather sequentially comprises a waterborne polyurethane resin surface layer, a solvent-free polyurethane resin foaming layer and a waterborne polyurethane resin impregnation layer from top to bottom. The preparation method comprises the following steps that solvent-free polyurethane resin foaming layer slurry is coated on the waterborne polyurethane resin surface layer, drying is carried out to be half-dry, then the waterborne polyurethane resin impregnation layer is laminated, and drying is carried out to obtain the environment-friendly space leather. The environment-friendly space leather prepared by combining the waterborne polyurethane resin and the solvent-free polyurethane resin has high tear strength and high peel strength, is high in genuine leather feeling, full in hand feeling, fine in crease, good in folding fastness, good in wear resistance and good in hydrolysis resistance, and can be used for manufacturing high-end and environment-friendly sports shoe products.

The invention provides a waterborne polyurethane composite material for shoes. The waterborne polyurethane composite material comprises a surface layer, a middle layer, a bonding layer and a base cloth layer which are sequentially bonded from top to bottom, the surface layer is prepared from water-based surface layer resin slurry; the middle layer is made of water-based middle layer resin slurry; and the bonding layer is made of solvent-free resin slurry. The waterborne polyurethane composite material for the shoes, disclosed by the invention, has relatively high stripping force and good folding resistance; according to the preparation method, the use of an organic solvent DMF is avoided, the DMF is not contained in the finished product, and the prepared product meets the requirement that the DMF amount is controlled within 50ppm of customers, and belongs to a green and environment-friendly product. The invention further provides a preparation method of the composite material for the waterborne polyurethane shoes, the steps of a wet method are reduced, foaming of the solvent-free resin is directly used for replacing wet-method base manufacturing, and the effects of energy conservation and emission reduction are achieved.

The invention discloses water-based high-transparency mirror ecological synthetic leather. The leather comprises a high-solid-content resin layer having a first surface and a second surface opposite to the first surface, a mirror water-based surface layer arranged on the first surface of the high-solid-content resin layer, a solvent-free resin layer arranged on the second surface of the high-solid-content resin layer, and a base cloth layer attached to the solvent-free resin layer. Meanwhile, the invention also provides a preparation method of the water-based high-transparency mirror ecological synthetic leather. The water-based high-transparency mirror ecological synthetic leather obtained by the method comprehensively achieves the high physical property effect of a finished product, the DMF residue test of the finished product is less than or equal to 50 ppm, and the surface is good in transparency effect, flat and fine in crease.

The invention relates to a microfiber superfine crease bonding layer resin and a production process thereof. The microfiber superfine crease bonding layer resin is prepared from 57 to 70 parts of a solvent, 9 to 11 parts of diphenylmethane diisocyanate, 9 to 12 parts of methylbenzene, 26 to 33 parts of polyhydric alcohol, 0.8 to 1.2 parts of a chain extender, 0.5 to 1.0 part of a coupling agent, 1.0 to 1.5 parts of a catalyst, 0.5 to 0.9 part of a promoter and 0.4 to 0.8 part of a terminating agent. Wherein the content of the N, N-dimethylformamide is 28 to 36 parts, and the content of the ethyl ester is 29 to 34 parts; and the polyol comprises polyether polyol and polyester polyol, and the weight part ratio of the polyether polyol to the polyester polyol is 1: 3. According to the present invention, the resin leather forming hand feeling is soft, the resin crosslinking degree is high, and the folding line after the resin leather forming is superfine.