52results about How to "Meet the requirements of ecological environmental protection" patented technology

The invention provides a method for preparing synthetic leather and the synthetic leather prepared by the method. The method comprises the following steps: (1) coating slurry containing surface waterborne polyurethane resin on the surface of release paper, and drying to form a finishing coat; (2) mixing and foaming the slurry containing the foaming waterborne polyurethane resin with air by using a foaming machine, and coating the foamed slurry on the surface of the finishing layer, and drying to form a medium foaming layer; and (3) adhering the surface of the foaming layer and a basic fabric by using an adhesive containing waterborne polyurethane resin, and drying. The method uses the waterborne resin foaming layer to replace the Base leather manufacturing process, avoids using toxic and harmful organic solvents, such as dimetbyl formamide (DMF), toluene and the like, solves the pollution problem in the synthetic leather industry, and realizes clean manufacture of the synthetic leather.

The invention relates to a method for improving color depth and light fastness of a natural dye-dyed fabric. The method utilizes an association effect between polyvinylpyrrolidone and natural dye molecules to improve the color depth of the natural dye-dyed fabric; a polyhydric alcohol method is adopted to generate nano ZnO on the surface of the fabric in situ; the excellent anti-ultraviolet performance of nano ZnO is used for improving the light fastness of the natural dye-dyed fabric. With the adoption of the method, the color depth and the light fastness of the natural dye-dyed fabric are obviously improved and the washing-resisting performance of the natural dye-dyed fabric is good.

The invention discloses a eucalyptus seedling culture substrate. The eucalyptus seedling culture substrate comprises the following components in part by weight: 35 to 40 parts of coconut shell powder, 25 to 30 parts of peat, 15 to 20 parts of bentonite, 20 to 25 parts of attapulgite, 0.5 to 0.8 part of soil water-retaining agent, 15 to 20 parts of nutrient substance and 0.2 to 0.3 part of composite strain. A production process of the eucalyptus seedling culture substrate comprises the following steps of: drawing silk from a coconut shell to generate fragments; crushing the fragments; sieving until the granular size is 10 to 20 meshes; performing salt exclusion; mixing 35 to 40 weight parts of the coconut shell powder subjected to the salt exclusion, 15 to 20 weight parts of the nutrient substance and 0.2 to 0.3 weight part of high-temperature-resistant fermenting strain; adding clean water to stir and wet; stacking into a circular truncated cone shape; covering a membrane on the circular truncated cone so as to ferment; and after fermenting completely, adding the peat, the composite strain, the bentonite, the attapulgite and the soil water-retaining agent according to the weight ratio to mix and stir uniformly to prepare into block shapes. The coconut shell powder serves as a main raw material, so the materials are obtained singly and easily, the nutrient ingredients and the content are easy to control, and large-scale standard production can be performed easily.

The invention relates to a novel single-layer cutting-free bag flower mushroom cultivation process which carries out flower mushroom cutting-free cultivation by a plastic degradation modified cylinderbag of which the single layer is specially processed. After a culture material is charged into the bag to be carried out the phases of disinfection, bacterial fermentation, culture, and the like, a bacterial rod surface film similar to fruiting film ruptured force can be gradually formed; in the fruiting phase, a flower mushroom can directly rupture the film (bag) and fruit by self growing force,the natural growing environments of automatic film rupture and wet inside and dry outside are created for the flower mushroom; the waste of a plurality of plastic resources caused by double-layer bagcultivation is reduced, the white pollution is lowered, and the working procedures of two-step packaging, discoloured water necrosis and decay of an interlayer of two bags, outer bag head cutting after bacterial fermentation maturity, outer bag removal before fruiting, and the like in the double-layer bag cultivation and the bacterial rod loss and mushroom damage caused by the working proceduresare eliminated, thereby achieving the aims of saving power and cost, improving the quality of the flower mushroom and protecting the ecological environment.

The invention discloses a process for biologically dyeing wool fabric by virtue of laccase, which belongs to the field of application of bio-enzyme in textile dyeing, and aims at applying the laccase to ecological dyeing of the wool fabric. The wool fabric is colored under the catalytic oxidation action of the laccase on tyrosine components in a wool structure. By virtue of the process, the color of the wool fabric is good in washing resistance, friction resistance and acid resistance. The process is simple, and easy to operate, and is an ecological environment-friendly dyeing method for textile; the consumption of chemicals is reduced.

The invention provides a special matrix for camphor tree seedling, which is of a block shape and comprises the following components in parts by weight: 80-85 parts of coir fibers, 15-20 parts of a multi-aggregation agent, and 0.1-0.2 part of humic acid. The production process comprises the following steps: roughening the coir fibers, and adding little zymophyte for sufficient fermenting treatment; uniformly mixing and stirring the fermented coir fibers, the multi-aggregation agent and the humic acid to prepare a mixture; compressing the mixture by a molding machine to obtain a fluffy cylindrical block; and enclosing the periphery of the cylindrical block by a non-woven fabric to form a culturing matrix with upper and lower openings. The proportion of the components of the special matrix sufficiently takes the growth of camphor tree seedling, and the seedling matrix has an excellent three-phase structure of fertilizer and water maintenance and ventilation.

The invention discloses a plastic flat plate and a manufacturing method thereof. The plastic flat plate comprises a foamed plastic layer and an appearance skin layer; a plurality of bubbles exist inside the foamed plastic layer, and the foamed plastic layer is formed through injection molding with a foamed plastic material; the appearance skin layer naturally covers at least one of the upper surface and the lower surface of the foamed plastic layer and is formed through injection molding together with the foamed plastic layer with resin by a dual-material co-injection molding machine. The method has the advantages that the trouble of secondary processing that a wood-grain appearance skin is required to be pasted additionally at present can be saved, so that the processing procedure can be simplified, and the use of plastic that replaces wood can be improved effectively, so that the requirements on ecological environmental protection can be met.

The invention belongs to the fine chemicals synthesis technical field, and discloses a method for synthesizing a copolymer polycarboxylate series non-formaldehyde crease-resistant finishing agent. The method adopts a clean aqueous solution polymerization technology, and comprises the following steps of: selecting H2O2-maleic anhydride as an initiator to perform a polymerization reaction at a reflux temperature with continuously dropping acrylic acid or an aqueous solution of the acrylic acid and vinyl acetate; synthesizing bipolymers and multi-element copolymers, which are terminated by carboxyl and use maleic anhydride and the acrylic acid as main monomers, through adjusting the proportions of the monomers and the dosage of the initiator. When the non-formaldehyde crease-resistant finishing agent is used as a non-formaldehyde crease-resistant finishing agent for textiles, thereby the crease recovery capability of the textiles can be improved.

According to the water path system, wastewater generated in the water purification process of a reverse osmosis filter element flows back to the front of the reverse osmosis filter element through a pipeline, and the wastewater is mixed with tap water and then enters the reverse osmosis filter element again for secondary filtration. According to the method, the discharge of wastewater can be greatly reduced while the performance and the service life of the reverse osmosis filter element are ensured; meanwhile, wastewater is connected with a domestic faucet, wastewater discharge is completed and wastewater is reutilized when the tap faucet is opened, and the requirement for ecological environmental protection is met; in addition, a waste water direct discharge pipeline is also arranged and is used for direct discharge of waste water when necessary; meanwhile, the system is provided with a pure water backflow branch, purified water flows back to the front end of the reverse osmosis filter element, raw water in front of the reverse osmosis filter element is washed and neutralized, no old water is left, a first cup of water can be drunk, the water quality is stable, and pure and fresh water is provided all the time.