3results about How to "Guaranteed whiteness" patented technology

The invention provides kenaf whole stalk APMP pulp and a preparation method thereof.The preparation method comprises the specific steps that S1, air-dried kenaf whole stalks are cut into strips, washing and impurity removing are conducted, and a material a is obtained; s2, carrying out pre-steaming treatment on the material a, and extruding and defibering the steamed material to obtain a material b; s3, adding the material b into the pre-impregnation liquid for impregnation to form slurry, and performing centrifugal dewatering on the slurry until the concentration is 20-30wt% to obtain slurry a; s4, grinding the pulp a to form high-concentration ground pulp, adding the high-concentration ground pulp into the adjusting liquid a, bleaching, and centrifugally dewatering until the concentration is 20-30wt% to obtain pulp b; s5, the pulp b is added into the adjusting liquid b for second-stage bleaching and centrifugal dewatering till the concentration is 20-30 wt%, pulp c is formed, the pulp c is diluted and ground, cleaning and screening are conducted after grinding is completed, and the kenaf whole stalk APMP pulp is obtained. The kenaf whole stalk APMP pulp has good pulp characteristics, the dependence of traditional APMP pulping on wood is broken through, and the current situation that domestic pulping wood resources are deficient is relieved.

The invention relates to the field of D21H21 / 30, and in particular to a stable acid-resistant brightener and a preparation process thereof. The preparation raw materials at least include cyanuric chloride, a sulfonic acid compound, an amine compound and an amino acid. Glycine and glutamic acid are added by design to carry out a condensation reaction, and a liquid fluorescent brightener containing an asymmetric structure is obtained after the reaction, thereby greatly improving the storage stability of the liquid fluorescent brightener. Meanwhile, the liquid fluorescent brightener with a symmetrical structure and the liquid fluorescent brightener with an asymmetric structure generated after the reaction have a composite whitening effect, and the optical behaviors generated by the liquid fluorescent brighteners of different components do not interfere with each other, thereby greatly improving the whitening effect of the stable acid-resistant brightener, solving the problem that the surface of the obtained paper is dark and the whiteness is not high in the process of applying the fluorescent brightener to papermaking, and ensuring the whiteness, water solubility and anti-cation interference ability of the product.

This invention discloses an antioxidant-rich, long-lasting, gentle foundation and its preparation method, belonging to the field of cosmetic technology. The raw materials of the antioxidant-rich, long-lasting, gentle foundation, by weight, include: 20-25 parts of powder dispersion, 45-50 parts of oil phase, 17-30 parts of aqueous phase, and 1.5-2 parts of active ingredient additives. The active ingredient additives include 1.2-1.7 parts of plant extracts; the plant extracts include oat bran extract, Scutellaria baicalensis root extract, Ophiopogon japonicus root extract, Paeonia lactiflora root extract, and Prickly pear root extract. The synergistic use of various plant extracts in this invention significantly improves the waterproof, sweat-proof, and long-lasting effects of the foundation. Simultaneously, the foundation has good antioxidant properties, can maintain skin whiteness for a long time, has strong concealing power, and is non-sticky and easy to apply evenly. The foundation prepared by this invention is gentle and non-irritating, suitable for various skin types.