40 results about "Benzidine yellow" patented technology

The invention discloses a light-yellow writing paper capable of preventing myopia. The preparation method of the writing paper comprises the following steps: mixing hardwood slurry and softwood slurry according to a weight ratio of 1:0.5-1.3, bleaching the mixed slurry, dispersing the slurry, grinding the slurry, proportioning the slurry to obtain paper slurry, and finally moulding the paper slurry to obtain paper through a conventional method. During the slurry proportioning process, the following additives are added in percentage by the total weight of paper slurry: 0.001 to 0.002% of alkaline light yellow, 0.001 to 0.006% of alkaline orange, 0 to 0.001% of benzidine yellow, 0.001 to 0.002% of chrysophenine G, and 0.01% of titanium dioxide. The prepared writing paper has the following advantages: (1) the color of the paper surface is light yellow, the luster and color are soft, and the myopia can be effectively prevented; (2) the writing on the paper is fluent, the phenomenon of ink dispersion and fading is avoided, and the color is stable even after a long time preservation; (3) the growth of harmful bacteria on the paper is inhibited, and thus the health of users is guaranteed.

The invention discloses environmental-friendly low-smoke and low-halogen mining cable sheath rubber skin. The cable sheath rubber skin comprises the following material components in parts by weight: 100 parts of chlorinated polyethylene rubber, 10-15 parts of magnesium oxide, 3-5 parts of environmental-friendly stabilizer, 5-8 parts of microcrystalline wax, 15-25 parts of white carbon black, 15-25 parts of nanometer argil, 15-25 parts of aluminum hydroxide, 15-25 parts of environmental-friendly composite flame retardant, 3-5 parts of DCP (Dibasic Calcium Phosphate), 3-5 parts of PDM (metaphenylene bismaleimide), 1-2 part of RD (2,2,4-trimethyl-1,2-dihyaroquinoline polymer), 10-15 parts of IPPP (Isopropyl Phenyl Diphenyl Phosphate) and 3-5 parts of benzidine yellow or fast red salt. Due to the adoption of the cable sheath rubber skin, the flame retarding requirement of a mining cable can be met; and the cable sheath rubber skin has low smoke and low halogen, and is environmental-friendly.

The invention discloses an outer rubber material for a flame-retardant red fire-fighting rubber hose and a preparation process thereof. The outer rubber material for a flame-retardant red fire-fighting rubber hose includes the following components in parts by weight: 100 parts of chlorinated polyethylene CM rubber , 8-12 parts of light magnesium oxide, 20-25 parts of magnesium hydroxide, 8-11 parts of adhesive, 0.8-1.5 parts of paraffin, 1-1.5 parts of anti-aging agent, 6-10 parts of titanium dioxide, and 5 parts of sun-fast scarlet ~6 parts, benzidine yellow 0.5~1 part, flame retardant 10~15 parts, silicon dioxide 15~25 parts, reinforcing agent 35~45 parts, light calcium carbonate 30~40 parts, dioctyl ester 30~ 35 parts, 4-5 parts of vulcanizing agent and 0.8-1.2 parts of sulfur. The outer rubber material of the invention is suitable for the production of conventional steam-vulcanized rubber hoses, and the outer rubber material of the invention has moderate deformation after vulcanization, lower elongation, no under-sulfur phenomenon, and high vulcanization safety. The product made of the outer rubber material of the invention is bright in color, excellent in aging resistance, good in flame retardant effect, safe and environmentally friendly, non-toxic, can effectively prolong the service life of the rubber hose, and reduce the production cost of the rubber hose.

The invention discloses high-glossiness heat sublimation transfer paper. The high-glossiness heat sublimation transfer paper comprises a paper base layer and a coating on the paper base layer, wherein the coating comprises the following components by weight: 23.5-34.5 parts of carboxymethyl cellulose, 1.5-2.5 parts of saccharose, 0.23-0.6 part of glycol ether, 6.5-7.8 parts of poly citric acid, 2.5-3.6 parts of hyaluronic acid, 4.2-5.5 parts of dibutyl phthalate, 5.5-7.8 parts of morpholine, 1.15-4.6 parts of a microcrystalline wax Jonwax26 emulsion, 2.3-3.5 parts of phthalocyanine blue, 2.5-4.5 parts of benzidine yellow, 3.6-6.5 parts of aminated resin liquid, 4.25-6.6 parts of propylene glycol monomethyl ether, 3.3-6.5 parts of titanium dioxide, 4.5-6.5 parts of trisodium phosphate anhydrous and 2.5-3.6 parts of sodium alginate. According to the high-glossiness heat sublimation transfer paper, owing to the preparation method and all components of the surface coating, the formed coating is good in glossiness, and the prepared end product is bright in pattern and longer in retention time.

The invention relates to a preparation method of a fertilizer colorant and an application method thereof. The preparation method comprises the following steps of: respectively dissolving water-soluble dyes such as bright red, rose red, acid blue, brilliant blue, golden yellow or lemon yellow into water; respectively adding 1-3% dispersing agent; stirring and respectively preparing into red inner colorant, blue inner colorant and yellow inner colorant for later use; respectively dissolving oil-soluble dyes such as lithol red, toluidine red, phthalocyanine blue, transparent blue, benzidine yellow or fluorescence yellow into base oil dissolvent; respectively adding the 1-3% dispersing agent; stirring and respectively preparing into red outer colorant, blue outer colorant and yellow outer colorant; directly stirring and blending the inner colorants and fertilizer raw materials; and spraying the outer colorants, so that the fertilizer is evenly colored. The preparation method can prepare the colored fertilizer which can not discolor under the functions of strong acid, strong base, strong reductant, strong oxygenant and microbe, and has the characteristics of small use amount of the colorant, stable coloration, low cost, pure color, good appearance, wide adaptability, high safety, good performance and the like.

The invention discloses a method for preparing a rosin derivative for the pigment industry and relates to the technical field of deep processing of rosin. The method comprises the following steps of: adding alkylphenol disulfide which accounts for 0.1-1.0% of the total mass of rosin into the rosin and carrying out disproportionation reaction, wherein the reaction temperature is 260-280 DEG C and the reaction time is 2-6 hours; cooling down after the reaction is accomplished; adding tannic acid which accounts for 0.3-1.0% of the total mass of the rosin at 160-200 DEG C; stirring and reacting for 1-3 hours; and taking out the product which is the rosin derivative. Compared with the prior art, the rosin derivative can improve the tinting strength of the pigment, is high in transparency and is nature and environment-friendly. The rosin derivative is mainly applied to industries such as pigment synthesis and is particularly applicable to preparation of benzidine yellow pigment with high additive amount.

The invention discloses a blue-light-prevention screen protective membrane and a preparation method of the blue-light-prevention screen protective membrane, wherein the blue-light-prevention screen protective membrane is composed of a scrape-resistant coating, a film substrate layer, a blue light blocking layer and a release membrane layer; one surface of film substrate layer is coated by the scrape-resistant coating; the other surface of the film substrate layer is coated by the blue light blocking layer; the other surface of the blue light blocking layer is coated by the release membrane layer. The blue light blocking layer consists of the following components in parts by mass: 150 parts of methyl MQ silicon resin, 80-120 parts of terminated polydimethylsiloxane, 4.14-5.94 parts of 2, 4-dichlorobenzoyl peroxide, 0.27-5.06 parts of benzotriazole and 0.027-0.115 part of azo-type benzidine yellow. The blue-light-prevention screen protective membrane provided by the invention can resist blue light with the wavelength of 380-480nm, reduces the injury of blue light to retina, moreover has favorable visible light transmittance, and can be effectively compatible with visible light transmittance and blue light blocking rate; the coating is uniform and controllable in thickness; the preparation process is simple and low in cost.