A method of manufacturing molded products
(57) Abstract:The invention relates to light industry, namely the method of manufacturing molded products. The method includes forming products by applying fibrous material on formosanus surface. As the fibrous material used collagen composition comprising collagen mass (in terms of dry substance) of 3-8%, plasticizer 2,4-12%, oak extract, 0.1 to 0.33 percent and water. This invention improves the dimensional stability, improve hygiene and operational characteristics a fur headdress, gives good thermal insulation properties. 1 C. p. F.-ly, 1 table. The invention relates to light industry, namely, to obtain molded products, for example padding - insulated frame for fur hats, shoulder pads for clothing.There is a method of making hats with fields of synthetic fibrous material, consisting in the fact that the material is impregnated with a stabilizing solution containing a binder, for example a polyamide resin of different concentrations of mold and simultaneously dried by heating. In this case, a polyamide resin, p retaining its shape (Patent N 2475045, CL A 42 C 1/00, publ. 19.11.1969).There is also known a method of molding articles from synthetic fibrous materials containing polyvinyl chloride and polyacrylonitrile fiber. For this purpose as an agent of the limited swelling of the fibers take an aqueous solution of an organic solvent, such as dimethylformamide (technical) with a concentration of 30-50%, the impregnated preform press on the centrifuge to 60% humidity. Pressed billet is placed on binning 5-20 minutes, and then molded by the press at 60-75oC. During molding semi-finished product fanned air is heated up to 45-60oC, removal of an aqueous solution of dimethylformamide. Molded workpiece is removed from the metal molds and stack for cooling it to room temperature (Patent N 285219, class A, 42 C 1/00, publ. 05.01.1971).A known method of manufacturing a collagen containing material. From redoubling tannery waste prepared collagen solution from tanned leather waste paste with a particle size of solids of 0.2-0.6 mm Solution and the paste is mixed for 1-5 hours at a temperature not exceeding 15oC to obtain a homogeneous mass having a 0.1 to 2 wt. % nedubrovo collagen, 0.3 to 10% of tanned collagen and pH of 2.6 is as 0.15 to 7.0 wt.% and homogenize the mixture at a temperature of not higher than 5oC. Produce freezing, in which the temperature of the mixture reduced from minus 14 to minus 75oC for 0.1 to 2 hours and kept in a frozen state at a temperature of from minus 2 to minus 20oC for 4-24 hours Later produce defrosting and the extract obtained polymer material in air at room temperature in a moist condition without load within 6-12 hours , heating to 85-105oC, cooling to room temperature, 9-10 within 10-20 min and the drying to a residual moisture content of 30-40%. Then the material is subjected to hot pressing and subsequent exposure to air without load within 12-24 hours. To obtain a semi-finished leather imitation he may be subjected to additional leather processing (Patent N 2018540 C1, class C 14 C 13/00, publ. 30.08.1994).In the known methods use organic solvents that are flammable and explosive substances. In addition, the ways labor - and material-intensive.The objective of the proposed technical solution is the improvement of shape and nesminaemosti.This objective is achieved in that the fibrous material for the manufacture of molded products using collagenoliticescoy compo is - -8%, the plasticizer is glycerol (GOST-6823-23) - 2,4-12%, oak extract (THAT 13-133.1. - 60-76) - 0,1-0,33%, water - the rest.On formosanus the surface cause the collagen composition, molded and dried to a moisture content of not more than 60%.Elastic-plastic properties of the material obtained at a humidity of 60% to ensure the preservation of the given shape. If necessary, change the shape of the product in the process of podvorovyvaet, which includes hydration of the semi-finished product to a moisture content not less than 80% and the subsequent pressing of the new formatada surface using the production machine.Examples of specific performance
Example 1. Manufacturing gasket-insulated hood for fur headdress.Prepare collagen composition (sand) of the following composition:
collagen weight (calculated on the dry matter) - 8%
the plasticizer is castor oil to 1.5%
glycerin - 10,5%
extract of oak - 0,11%
water - the rest.All components are mixed until a homogeneous mass within 30 minutes.Forming mixture is applied on formosanus surface, aligning the thickness of the printing device.Volume on the model changes hood headdress in the process of podvorovyvaet, which provides hydration billet hood up to 80% humidity and drying on the new formatada surface using the production machine. Dried to a moisture content of 60%.Features of the collagen containing material (CSM) give the opportunity to form cushioning-insulated frame fur headdress with the desired properties. Depending on requirements to a headdress properties of CSM can be varied by modifying the composition of the mixture or the molding parameters.Example 2. Manufacturer of shoulder pads for clothing.Prepare collagen composition (sand) of the following composition:
collagen weight (calculated on the dry matter - 3%
the plasticizer is glycerin - 2,4%
extract of oak - 0,1 %
water - the rest.Forming mixture is applied on formosanus surface, aligning the thickness of the printing device.Next dried at a temperature of 20-25oC to a moisture content of 60%.The finished molded parts used in the clothing.A method of manufacturing molded products using kollagensoderzhaschego composition has a number of advantages: improved hygiene and production is I. 1. A method of manufacturing molded products by applying collagen fibrous material on formosanus surface, molding and drying, characterized in that as a fibrous collagen material used collagen composition comprising collagen mass in terms of dry substance 3 - 8%, plasticizer 2,4 - 12%, oak extract, 0.1 to 0.33 percent and water.2. The method according to p. 1, characterized in that it further includes the process of podvorovyvaet, which consists of wetting and subsequent pressing of the new formatada surface using the production machine.
FIELD: household goods and personal effects.
SUBSTANCE: method of producing headwear from leather and/or fur comprises cutting out of individual elements using templates and fixing these elements to each other through the holes using coupling units according to the ornament in the contour contact points. At that, vertical rows number is selected, as well as calculation of first horizontal row matrix element size, two planes of the headwear to create are made, a part of headwear reamer - wedge is built, and number of horizontal rows, as well as matrix element size, is defined geometrically for each horizontal row by sequential inscribing matrix element contours into the wedge. Then elements of each size are produced, quantity of which is equal to the one of wedges, and the upper part.
EFFECT: cheapening of product manufacturing due to capability of using non-standard leather and fur raw materials and waste materials of any shape and size.
5 cl, 18 dwg
FIELD: personal use articles.
SUBSTANCE: invention relates to the field of sewing industry and relates to the method of making one-piece moulded items. The method to make one-piece moulded items by means of application of collagen-containing mixture onto shaping surface, additional moulding and drying consists in using a meshy matrix as a shaping surface, and additional moulding is carried out with the help of a meshy puncheon, at the same meshy surfaces of the matrix and the puncheon carry relief-graphical information. After application of collagen-containing mixture, the matrix and the puncheon are fixed, and additionally the process of the stock surface pattern fixation is carried out by means of submersion into a setting bath, after drying the semi-finished product is subjected to finishing operations.
EFFECT: method makes it possible to make a one-piece moulded item, providing for specified shapes of its outer and inner surfaces and geometric parameters, to preserve relief-graphical pattern on outer and inner surfaces of the item, to automate process of making a one-piece moulded item due to application of meshy shapes, which make it possible to do moulding, impression, fixation and drying of the item without withdrawal of the semi-finished product from a mould, to vary legibility of the pattern by control of process parameters: increased depth of impression and increased concentration of a precipitating agent in a setting bath.
SUBSTANCE: disclosed is rigid neck flap for protection of variable size headwear having rear cutout. Heck flap attachment to strap, adjusting headwear size, is performed by loops, installed on neck flap outer side. During selection of headwear maximum size neck flap width must exceed rear cutout size, i.e. at maximum rear cutout opening. For occiput lower part and neck additional protection disclosed are soft and hard lower neck flaps, which are attached above said rigid neck flap, attached to adjustment strap.
EFFECT: soft and hard lower neck flaps can be made both detachable and fixed.
5 cl, 10 dwg
FIELD: leather industry.
SUBSTANCE: semifinished product is degreased, neutralized, dyed, and lubricated. Dyeing is performed in two washing-interrupted steps with anionic black dye consumed in amount 0.5-0.6% of the weight of semifinished product in each dyeing step. Lubrication is followed by retannage with chrome tanner in amount 0.6-1.0% of the weight of semifinished product (calculated for chromium oxide) and treatment with 0.8-1.0% of spindle oil.
EFFECT: achieved deep black color and high performance characteristics.
1 tbl, 5 ex
FIELD: polymer materials.
SUBSTANCE: sheet porous collagen-containing material, suited to be used in footwear, furniture, and vehicle manufacture, comprises water-soluble plasticizer and particles of hydrophilic filler in the form of fibers with length-to-diameter ratio between 5 and 500. At least 50% of fibers are parallel to sheet sides with largest surface areas. This sheet is characterized by rupturing relative elongation when stretched in one direction in planes of the largest sides equal to 10-30%, modulus of compression elasticity for thickness equal to 50-300 kPa, and coefficient of thickness restoration after 70% compression for 5 h equal to 0.90-0.95 at 8-12% moisture. Also described is method of manufacturing such material including following operations: mixing hydrophilic fibers having length-to-diameter 5-500 with aqueous collagen solution and multifunctional cross-linking agent to form homogenous mass containing 1-20% fibers, 1-5% collagen, and 0.2-20% cross-linking agent; freezing liquid sheet and unfreezing it followed by pressing resulting porous sheet; softening with water-soluble plasticizer; second pressing; and drying.
EFFECT: enhanced damping ability of sheet and simplified manufacturing technology.
8 cl, 2 tbl, 10 ex
FIELD: production of agricultural manufacturing.
SUBSTANCE: the present innovation deals with obtaining fur coats from birds' carcasses. A fur coat includes a bird skin and a fluff coat on it. Bird skin should be taken in cold period of the year, moreover, at first, the skin is manufactured and then - a fluff coat. In peculiar case, fur coat is obtained from water birds, for example, from goose.
EFFECT: broadened assortment of consumer's goods.
FIELD: leather industry.
SUBSTANCE: material and manufacturing procedure relate to macroporous collagen-containing materials accessible via processing of collagen-containing slurries showing complex of physico-mechanical and hygienic properties usually being characteristic of leather made from animal skins and which can be used in leather industry. Leather-like macroporous material contains collagen, tanned leather fibers, and polymer possessing capability of joining collagen fibers into one indivisible structure, amount of said polymer corresponding to 3-30% based on the summary weight of collagen and leather fibers. Method for manufacturing leather-like macroporous material envisages use of freezing followed by vacuum drying to residual moisture no higher than 12%, ageing at room temperature for 1 day period, treatment with aqueous polymer dispersion providing joining of collagen fibers into indivisible structure, and additional vacuum drying at temperature no lower than polymer film-formation temperature and no higher than temperature of the beginning of thermal shrinkage of collagen fibers.
EFFECT: improved physico-mechanical properties of leather-like macroporous sheet material and simplified manufacturing procedure.
4 cl, 4 ex