450results about "Colorants/pigments addition" patented technology

Whitened fluff pulp and methods for making whitened fluff pulp. The whitened pulp is a fluff pulp that has been treated with one or more of a white pigment, a colorant, or a fluorescent whitening agent.

The present disclosure relates to fibrous structures including active agents and having a graphic printed thereon. In some embodiments, a nonwoven web may include a fibrous structure comprising filaments. In turn, the filaments may include filament forming material, and an active agent releasable from the filaments when exposed to conditions of intended use. In addition, a graphic may be printed directly onto the fibrous structure.

A hygiene or wiping product includes at least one ply of a fibrous web containing cellulose fibers and having a graphical pattern of at least first and second areas. The ply contains a coloring compound providing a coloration of the ply in the first area. The coloring compound is at least partly chemically destroyed in the second area so that the ply is less colored in the second area than in the first area. A method for producing such a ply includes the steps of providing a fibrous web containing a coloring compound, which provides a uniform coloration in at least a portion of the web, and applying a bleaching agent to a part of the colored portion of the web to at least partly decolor the web in the part generating a pattern of at least first colored and second less colored areas.

A structured tissue product produced using a structured or imprinting fabric and a press roll. The tissue product has at least two plies, and has a crumple resistance of less than 30 grams force and an average peak to valley depth of at least 65 microns.

A disposable paper towel with an anti-microbial lotion and is provided with a chromatic transfer indicator which undergoes a delayed, visually perceptible color change at a predetermined time after the towel is wetted. An anti-microbial lotion on the towel increases water absorbency times (WAR) to further promote lotion transfer to the skin and increase lotion transfer effectiveness.

A method of making paper or paperboard is described, which includes introducing at least one charged starch, preferably having a degree of substitution greater than 0.045, and at least one optical brightening agent to a papermaking pulp and then forming the pulp into paper or paperboard. The present invention further describes methods of improving optical brightener performance.

The invention relates to high-whiteness coated paper coated by using raw paper with medium whiteness, a coating method and a coating. The coating method is mainly characterized by greatly reducing the whiteness of the raw paper for producing conventional high-grade coated paper such as copper plate paper and coated white cardboards. The coating mode is a common single-side or double-side two-layer (double-coating) or multi-layer coating mode in a papermaking plant. By using the mechanical property of the raw paper, the printing property of coatings and the synergetic whitening effect between the coatings, yellowing of the raw paper is inhibited, and the whiteness of the coated paper is improved to over 86 percent so as to meet the requirements of national standards on the high-grade copper plate paper. The raw paper of the high-grade coated paper can be made by using various kinds of environment-friendly and resource-saving pulp of medium whiteness more widely, and is favorable for promoting the development of the low-carbon manufacturing technology of the pulping papermaking industry. The newly invented coated paper can substitute the traditional high-grade paper such as the copper plate paper, the coated white cardboards and the like in the fields of printing and packing.

Starch-chitosan mixture (I) comprises water-soluble chitosan (0.1-50, preferably 0.5-20 wt.%), and optionally other additives such as inorganic- or organic pigments, aluminum oxide, barium sulfate, calcium carbonate, kaolin, titanium dioxide, talc, satin white, silicates and plastic pigments. An independent claim is included for the preparation of (I) comprising: mixing a water-soluble chitosan (50-99.9 wt.%) with starch (0.1-50, preferably 0.5-20 wt.%); preparing an aqueous solution of the mixture; treating the aqueous solution in a spray boiler; and drying the boiled product.

A tissue product comprising a plurality of first fibers and a plurality of silk fibers and a method of making the tissue product wherein the silk fibers are a different color than the color of the first fibers, as assessed by the human naked eye.

A rolling paper is formed according to a modified conventional paper-making process. The end product is infused with cannabinoids from an oil extract from the cannabis plant. Since paper-making is highly water intensive and the cannabinoid containing cannabis extract is an oil that is ordinarily immiscible in the water, an emulsifier is used to allow the cannabinoids to evenly disperse in the making of the paper. The addition of the cannabinoids and the emulsifier is done prior to the drying of the paper. Preferably, the emulsifier and cannabinoids are added during the sizing step of the paper-making. Preferably the emulsifier is a starch-like carbohydrate, a modified starch, more preferably hydroxy-propyl-methyl-cellulose. The cannabinoid containing cannabis extract can be added at the pulping, web-forming step and/or preferably at the sizing step of paper-making.

The present invention is a thickened dye composition and method of applying same to a paper web that produces colored or patterned paper having good bleed resistance. The dye composition of the invention includes a binder; a dye; a thickener selected from the group consising of polyvinylpyrrlidone homopolymers, polyvinylpyrrolidone copolymers, and mixtures thereof; and water. The present invention also includes colored or patterned papers prepared using this conposition.

A method of coloring a cellulosic material which includes a) dispersing pulped cellulosic material into water; and b) coloring the pulped cellulosic material by adding a cationic dispersion to the water, where the dispersion includes: (i) at least one pigment; (ii) water; and (iii) at least one quaternary salt of a styrene maleimide imide resin in an amount effective to disperse the pigment. The cationic dispersion may be prepared by (i) mixing, at 500 to 10,000 rpm, at least one pigment; water; and either (a) at least one a quaternary salt of a styrene maleimide imide resin or (b) at least one styrene maleimide imide resin in combination with at least one weak acid, thereby forming a dispersion premix; (ii) milling the dispersion premix in a mixer filled with ceramic, metal or glass beads for a period of time sufficient to reduce pigment agglomerates to primary particles, thereby forming a nonstandardized dispersion; and (iii) standardizing the dispersion against a color standard by adding water. The resulting cationic dispersion can be used to color cellulosic materials such as cotton and paper.

The invention relates to a needle bush fiber yarn and a preparation method for the same and application. The paper yarn is mainly made of main material and auxiliary material according to weighty by parts. The main material comprises 100 parts of needle bush slurry; the auxiliary material is formed by 0.04 to 0.06 parts of softener, 0.06 to 0.08 parts of water-repellent agent and microscale of dyeing agent. The paper yarn preparation step is formed by first, preparing slurry, in which needle bush is pulped with water, second, adding auxiliary material and evenly stirring, third, making paper, in which making paper slurry into thin weaving paper with weight of 11 to 22g, fourth, slitting the paper into paper strips with 2 to 4mm width, and fifth spinning, in which twisting the elongated paper strip into 21 to 32 paper yarns. The paper yarn can be applied to paper-made socks, underwears, knitting shirts, paper towel, paper shoes and paper caps and great ventilation and water absorption can be achieved; sweat can be absorbed and bacteria can be resisted and odor can be eliminated; and the needle bush fiber paper yarn can be recovered, thereby causing no pollution to the environment.

The invention discloses a nano color paste dispersant for paper as well as a preparation method and application of the nano color paste dispersant. The nano color paste dispersant for the paper is prepared by the following steps: uniformly mixing water and an emulsifier; then, regulating a pH (Potential of Hydrogen) value to be 8 to 9 to obtain emulsified liquid; then adding a hydrophobic monomer and a hydrophilic monomer and emulsifying to form a uniform state; after raising the temperature, adding an initiator water solution and reacting; then adding a stabilizer to obtain a dispersant. The dispersant disclosed by the invention has a good dispersion effect, and color powder is easy to disperse, so that the color powder is more stable; the color of color paste containing the dispersant is easy to fix, and the color paste is easily combined with fibers in a papermaking process and is firmly attached. The color paper obtained by the color paste provided by the invention has extremely strong anti-sunlight fastness reaching grade 6, and the color is bright and lasting.

A cigarette paper containing astaxanthin comprises, by weight, 50-70 parts of fiber, 25-40 parts of a calcium carbonate filler, 0.5-8 parts of a combustion improver, 1-5 parts of astaxanthin, 0.5-8 parts of a tobacco extract, 0.1-5 parts of a natural pigment, 2-10 parts of ethanol and the balance of water. A method is as below: evenly mixing fiber and calcium carbonate filler in a slurry pond to obtain a papermaking slurry; dissolving the combustion improver in water to prepare a combustion improver solution; dissolving astaxanthin in ethanol solution and adding water for dilution; adding the tobacco extract and natural pigment, and stirring evenly to prepare a dye solution; then adding the dye solution into the combustion improver solution, and stirring uniformly to obtain a mixed solution; producing the papermaking slurry into a cigarette paper base; and adding the mixed solution onto the cigarette paper base in a sizing segment. The invention confers a unique appearance to the cigarette paper, enriches and harmonizes the incense of cigarettes, and enhances the cigarette smoking quality and safety.

The invention relates to the technical field of paper production, in particular to a production method of high-bulk myopia-prevention paper. The method comprises the following steps of S1, pulp treatment: respectively treating bleaching needlebush pulp, bleaching chemical reed pulp and poplar chemithermomechanical pulp through a double-disc mill so that the process requirements are met, wherein the bulk of the poplar chemithermomechanical pulp is greater than 3.5cm<3>/g; S2, dyeing: feeding the treated pulp into a pulp mixing pool; firstly, adding the poplar chemithermomechanical pulp; then, adding dyeing agents for direct yellowing; then, adding chemical reed pulp; finally adding needlebush pulp; uniformly mixing all pulp through stirring; S3, paper making by a paper making machine; S4 paper forming through dewatering and drying. The production method of the high-bulk myopia-prevention exercise book paper provided by the invention has the advantages that the paper obtained through production has high bulk; the color of the paper is maize-yellow, the nontransparency is high; the two-side printing and writing can be performed; the paper is used as the paper for exercise books for primary and secondary school students; the obvious myopia-prevention effect can be achieved.

The invention relates to an anti-falsification fiber and an anti-falsification paper with the anti-falsification fiber, and the anti-falsification fiber which is formed by at least outer material (1) and internal material (2) through composition, and the internal material (2) is coated by the outer material (1); the invention is characterized in that: the color of the outer material (1) is color A, and the color of the internal material (2) is color B; an obvious vision difference exists between the color A and the color B, and an obvious vision difference also exists between the color of the reflected light observation of the anti-falsification fiber arranged in a pulp layer and the color of the penetration observation of the anti-falsification fiber after the anti-falsification fiber entering the paper pulp layer. The invention has the advantages of eliminating the passing-off of the printing technology efficiently, and avoiding the pollution on the paper surface in the reflected light observation.

The invention relates to aqueous pigment preparations containing (A) at least one organic and/or inorganic pigment, (B) a dispersant of formula (I) or (II), or mixtures of the dispersants of formulas (I) and (II), (C) optionally wetting agents, (D) optionally other surfactants and/or dispersants, (E) optionally one or more organic solvents or one or more hydrotropic substances, (F) optionally other additives used conventionally for the production of aqueous pigment dispersions and (G) water.

The invention relates to a process for treating cellulose fibres which process comprises the steps of providing a slurry comprising cellulose fibers, adding anionic polyacrylamide (A-PAM) with high molar mass to the slurry in a first step and subjecting the slurry comprising fibers and A-PAM to a mechanical treatment in a second step thereby forming a composition comprising microfibrillated cellulose. The invention further relates to a composition produced according to the process.