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.

 

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