58results about How to "Do not change color" patented technology

The invention relates to wool top dyeing of flame-retardant polyester fibers and a post-treatment method thereof. The method comprises the following steps: the flame-retardant polyester fiber wool top is placed in a wool top dyeing machine and operates for 3-5 min at the temperature of 40-50 min, glacial acetic acid is added and PH Value is adjusted to 5-6, monoammonium phosphate and Yuri Huading DIF are added for operating for 5-10min, disperse dye is added for operating for 5-10 min before the temperature rises, the temperature stops rising until 85 DEG C, then the temperature is maintained for 10-15 min, the temperature rises to 100-120 DEG C for operating for 30-60 min, liquor drainage and flushing are carried out with a bath ratio of 1:20-50; the dyed flame-retardant polyester fiber wool top is put into lotion soap with 2-5% of fiber fabric by weight, the lotion soap is processed for 20-30 min at the temperature of 80-90 DEG C, or, the dyed the flame-retardant polyester fiber wool top is first placed in bath consisting of 0.5-2g / L sodium hudroxide , 0.5-2g / L rongalite and 0.5-1g / L nonionic surface active agent for being processed for 20-30 min at the temperature of 70-80 DEG C and then placed in glacial acetic acid bath with 1-4% of fiber fabric by weight for being processed for 10-15 min at the temperature of 40-45 DEG C; the bath ratio is 1:20-1:50. The wool top dyeing of the invention features good levelling of dyeing and high color fastness of dyeing wool top.

The invention discloses a preparation method of water-based organosilicone stone protecting agent, wherein the protecting agent is prepared from, by weight, 50-75 parts of long-chain alkylsilane modified methyl silicate solution, 5-10 parts of silica sol, 5-10 parts of polyving akohol, 1-5 parts of water-based adhesive promoter. The stone protecting agent takes water as the dispersing agent, and is low in cost, safe and toxic-free; the processed stone is free from the change of appearance and color, and has good penetration performance, strong adhesive force, fast curing, and high dilution ratio; the protecting agent can form protection at the surface and the inner part of the stone, and comprehensively improve the protection performance.

The invention discloses an organic fluosilicic material used for sealing and protecting an iron cultural relic; the main components of the organic fluosilicic material consists of a main agent, a flatting silica and a thinner; wherein, the component of the main agent is an organic fluosilicic polymer; and the organic fluosilicic polymer is prepared by the hydrolytic polycondensation reaction of an organic silicon mixed monomer and hydroxy fluosilicic oil under the existence of an acid catalyst. The invention also discloses a preparation method of the organic fluosilicic material used for sealing and protecting the iron cultural relic. Test shows that after the organic fluosilicic material is adopted for carrying out sealing and protection on the surface of the iron cultural relic, protections of colorless, transparency, lightless and maintaining the original appearance on the iron cultural relic are realized; the corrosion resistance and the aging resistance are very good; moreover, the organic fluosilicic material has better self-cleaning performance. Not only can the problem of changing the original appearance of the cultural relic commonly existed in iron cultural relic sealing and protecting materials be solved, but also the corrosion resistance and the weatherability can be greatly improved.

The invention relates to a preparation method of a novel hydrophobic wood. The preparation method comprises the following steps of: firstly, melting alkyl ketene dimer colloidal particles at 40-60 DEG C; then adding a certain amount of cationic starch and an emulsifying agent and water; preparing an alkyl ketene dimer emulsion through treatment with a high-pressure homogenizer, and then blending the alkyl ketene dimer emulsion with a certain amount of nano cellulose gel to prepare a composite emulsion; then putting the wood and the composite emulsion into a reaction tank, vacuumizing and then injecting the emulsion for a period of time; taking the wood out, draining off the composite, and drying in a drying oven for 3-8 hours to obtain the novel hydrophobic wood. The preparation method is simple in process, causes no changes to the color of the wood and no corrosion to equipment, and is low in energy consumption, and the product does not have peculiar smells and can be widely used as indoor and outdoor furniture base materials and decorative materials.

The invention relates to the field of waterproofness and corrosion prevention of a porous base material and particularly discloses a self-crosslinked alkyl alkoxy silane impregnant. The silane impregnant is prepared from alkyl alkoxy silane and alkylsilanol, and a mass ratio of alkylsilanol to alkyl alkoxy silane is (5-50):(50-95). According to the silane impregnant, alkylsilanol is prepared fromalkyl alkoxy silane by hydrolysis. The silane impregnant has excellent waterproof performance, the crosslinking reaction of the silane impregnant is independent of external moisture, meanwhile, the silane impregnant has excellent permeability, breathing function, chloride ion erosion resistance and antifouling function, and besides, the silane impregnant is a colorless transparent liquid, so thatthe color of the surface of a concrete material is not changed after application of the silane impregnant.

The invention discloses a methyl silicate stone protecting agent and a manufacturing method thereof. The methyl silicate stone protecting agent comprises a methyl silicate, at least one type of silane coupling agent, at least one type of polyethylene glycol and at least one type of water, wherein the adding amount of the methyl silicate is 8-20% of the total weight of a polymer; the adding amount of the silane coupling agent is 1-5% of the total weight of the polymer; the adding amount of the polyethylene glycol is 0-5% of the total weight of the polymer; and the adding amount of the water is 70-91% of the total weight of the polymer. The manufacturing method disclosed by the invention comprises the following steps: dissolving the polyethylene glycol in a small amount of hot water according to the proportion, then sequentially adding sodium methyl silicate and the silane coupling agent in a stirring state and finally replenishing water till 100%. The methyl silicate stone protecting agent disclosed by the invention has the advantages of waterborne and environment-friendly properties, no toxicity, no volatilization, no pollution, short curing time, stable chemical performances, simplicity, convenience and flexibility in construction and operation, safety and low cost. The methyl silicate stone protecting agent is suitable for waterproofness and moisture-proofness of various natural stones, artificial stones and the like. The methyl silicate stone protecting agent particularly has an excellent waterproof effect on the stones with relatively large holes, such as sandstone, cavity stone and the like, and can simultaneously prevent affecting the air permeability of the stones.