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A technology for insoles and fabric layers, applied in insoles, footwear, layered products, etc., can solve problems such as damage to the fabric layer, high cost, environmental pollution, etc., and achieve the effects of improving manufacturability and reducing costs
Pending Publication Date: 2022-05-10
安娜·尤里付娜·妮可缇娜
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[0025] Disadvantages of the closest analogues are low manufacturability, low environmental friendliness, high complexity required for its manufacture and long duration of the total operation, low absorption properties, high cost due to the combination of manufacturing known analogues caused by the composition of
[0026] Despite their remarkable antimicrobial properties, the closest analogues are characterized by low manufacturability, long duration of total operations required for manufacture, and high cost due to proper pretreatment of the algae that are part of it, obtained containing sulfuric acid Biomass of polysaccharides (in particular fucoidan), and components for the production of solid and foamed polyurethanes synthesized in a well-known manner from non-renewable raw materials (i.e. synthesis of isocyanates and polyols), algae The fusion of substances into layers made of polyurethane requires the design and use of co...
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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[0052] The drawings schematically show a preferred but not exclusive embodiment of the claimed multilayer insole comprising a base 1 , a foam layer 2 and a fabric layer 3 . Also in an embodiment, the claimed insole may comprise an elastic insert 5 joining the layer 4 and the base 1 .
[0053] The base 1 is made of rigid bio-based polyurethane that can be adhered to the inside of the sole and is necessary to form the structure of the claimed insole and to give it a stable shape. The rigid bio-based polyurethane substrate 1 can be eg bio-based polyurethane Pearlbond ECO (also known as Lubrizol), Renuva manufactured by Dow Chemicals, JEFFADD manufactured by Huntsman, Recypol, Econykol manufactured by Mitsui Chemicals & SKC Polyurethanes.
[0054] In a preferred embodiment of the claimed insole, the base 1 comprises at least one elastic insert 5 made of a bio-based polymer and which can be adhered to the inner side of the sole. The biobased polymer of the elastic insert 5 of the ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The present invention relates to a multi-layer insole comprising a base mounted to the inside of a sole, a foam layer located above the base, and a fabric layer located above the foam layer. The substrate is made of hard bio-based polyurethane, the foam layer is made of foamed bio-based polyurethane, and the fabric layer is at least made of lyocell fibers or bio-based polyamide fibers.
Description
technical field [0001] The present invention relates to multilayer insoles, ie insoles made of layers of polymeric material, which can be inserted into a shoe, for example for hygienic and orthopedic purposes. Background technique [0002] Known rubber insole (invention patent CN 110240734 A, IPC C08L7 / 00, C08L 91 / 06, C08K 13 / 02, C08K 3 / 26, C08K 3 / 015, C08K 5 / 00, C08J 9 / 00, A43B 17 / 14, published on September 17, 2019), it can be seen that the following mass ratios are included in the foaming composition containing natural rubber (the foaming composition contains 91% to 94% of natural rubber and fatty acid, ash, protein and sugar mixture), also includes Chinese herbal medicine, nano calcium carbonate, calcined kaolin, talcum powder, naphthenic oil, zinc oxide, stearic acid, foaming agent, paraffin, antiwear agent, antiyellowing agent , accelerators and sulfur: [0003] Foaming composition containing natural rubber-100 [0004] Chinese herbal medicine-25 [0005] Nano calc...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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