47results about How to "Improve color fastness to light" patented technology

The invention belongs to the technical field of osier dyeing, in particular to a dyeing method for improving color fastness to light of osier. The method specifically comprises the following steps of (1) osier pretreatment and (2) osier dyeing. The permeation of a coloring agent is effectively improved, the degree of aggregation of dye molecules is higher, crosslinking binding between the dye molecules and the ingredients of osier is prompted, the binding force is high, leachability resistance is good, the electronic cloud density of azo group hydrogen atoms is reduced, the shielding effect on azo groups is achieved, the photooxidation resistance stability of the azo groups in the structure of the dye molecules is improved, and finally, the color fastness to light of a dye is improved; and furthermore, osier is evenly dyed and has good color fastness to water, the difference between the color of the interior and the color of the exterior of osier is small, osier is evenly dyed without stains, and is bright and glossy, and the quality of the wickerwork made of osier is effectively improved.

The invention relates to a high-color-fastness environment-friendly ecological board and a preparation method, and belongs to the technical field of decorative materials. The high-color-fastness environment-friendly ecological board comprises a base board layer, buffer and balance layers and high-color-fastness facing layers. The level of the color fastness of the high-color-fastness facing layers reaches the fifth level or above. The upper surface and the lower surface of the base board layer are bonded to the buffer and balance layers through environment-friendly glue. The high-color-fastness facing layers are made of wood-grained paper soaked in melamine modified resin containing a light stabilizer. The high-color-fastness facing layers are bonded to the upper surfaces of the buffer and balance layers. The buffer and balance layers are made of poplar veneers or Eucalyptus veneers or technical wood veneers. The base board layer is made of multiply plywood or a core-board. A modified bio-based adhesive or a modified starch adhesive is used as the environment-friendly glue. A hindered amine compound is used as the light stabilizer. The high-color-fastness environment-friendly ecological board has the paint-free function and also has the performance of low formaldehyde emission and the high level of color fastness to light.

The invention relates to a large-scale production method of a plant indigo dye for garment dyeing. The plant indigo dye is used in the large-scale production method of garments, nitrogen is filled into a garment dyeing device to remove the air, or the garment dyeing device is vacuumed to form minus 0.05-minus 0.07MPa negative pressure, the garments are then dyed with the plant indigo dye in the garment dyeing device, the dyeing temperature is 26-70DEG C, and the dyeing time is 50-150 minutes. By the arrangement, the problem that the plant indigo dye cannot be applied to a modern garment dyeingmachine on a large scale can be solved, and dyeing times are greatly reduced from traditional 6-18 times repeated dyeing to 1-3 times; the dyeing temperature can be raised so as to improve dye-uptake, level-dyeing property and dye permeability, and the color fastness of dry and wet friction and light resistance of the plant indigo dye are improved.

The invention relates to a high-weather-resisting type green recombined decorative veneer and a preparation method thereof. The high-weather-resisting type green recombined decorative veneer is prepared from a transparent abrasion-resisting adhesive film paper layer, a high-color-fastness recombined decorative veneer layer and a flexible enhanced material layer in sequence from top to bottom. Thepreparation method comprises the following steps: (1) manufacturing the high-color-fastness recombined decorative veneer layer: taking a rotatably-cut or sliced veneer as a main raw material; processing through procedures of dyeing by a high-color-fastness dyestuff, carrying out bionic assembling, coating an environment-friendly toughening adhesive, gluing and curing, so as to obtain a recombineddecorative limber batten; (2) coating one face of a flexible enhanced material with an environment-friendly formaldehyde-free adhesive and then compounding the flexible enhanced material on the back surface of the high-color-fastness recombined decorative veneer layer prepared by step (1), and carrying out hot pressing; (3) manufacturing the transparent abrasion-resisting adhesive film paper layer; (4) compounding the transparent abrasion-resisting adhesive film paper layer prepared by step (3) on the surface of the compound veneer prepared by step (2) and conveying the compound veneer into ahot pressing machine; carrying out hot pressing to obtain the high-weather-resisting type green recombined decorative veneer.

The invention relates to a color chain extender, a co-polymerized color polyurethane emulsion, a color polyurethane-acrylate copolymer emulsion, and a preparation method thereof. The method includes the steps of: 1) preparing the color chain extenders having the three base colors: red, yellow blue, through polymerizable modification of dye molecules; 2) performing a chain extension reaction of polyurethane with the color chain extenders as a component in a chain extender, and performing a subsequent phase-reversal emulsification process to prepare the co-polymerized color polyurethane emulsion; and 3) performing grafted emulsion copolymerization to a copolymerization-type color polyurethane prepolymer and a vinyl monomer to prepare the co-polymerized color polyurethane-acrylate copolymer emulsion. Because a chromophoric group is bonded to the molecular chain of the polymer as a side group, so that the copolymer emulsion can be directly used for producing a color aqueous polymer product without addition of a dye or a pigment. The copolymer emulsion can be widely used in the fields of aqueous coatings, paints and ink as an aqueous film-forming resin.

The invention relates to ternary compound dye and a method for preparing a high-color-fastness veneer layer by adopting the dye. The ternary compound dye is formed by a biomass nanofiber solubilizer,a hindered amine light stabilizer and acid bisazo dye according to the mass ratio of 1:(15-30):(100-300) in a compound manner. The method for preparing the high-color-fastness reconstituted decorativeveneer layer is characterized by comprising the following steps that a rotary-cut or sliced veneer is adopted as a main raw material, a reconstituted decorative material batten is processed through the procedures of dyeing, simulation assembly, environment-friendly toughening glue smearing, gluing and maintenance of the ternary compound dye, and then the batten is manufactured into a reconstituted decorative veneer with the thickness ranging from 0.15 mm to 1.0 mm through slicing. The compound dye has a good sterilization and antibacterial effect, the service life is prolonged, meanwhile, thedye has pleasant fragrances, and the dye is green and environment-friendly.

The invention discloses a protein material capable of absorbing ultraviolet ray and a preparation method thereof. According to the invention, an arylamine compound containing an ortho-nitroaniline structure is subjected to diazotization and then to a coupling reaction with the ortho-position hydroxyl groups of side groups of p-hydroxybenzmethylene in tyrosine residue in protein molecules and produces a structure containing an azo bond with macro-molecular side groups of proteins, and an ortho-hydroxyphenyl-benzotriazole structure is produced through loop closure between the azo bond and ortho-nitro group of an aromatic ring after further treatment with a reducing agent. The ortho-hydroxyphenyl-benzotriazole structure connected with macro-molecular chain of protein has the capability of absorbing ultraviolet ray, which enables a prepared protein material to have the capability of ultraviolet resistance and effectively enhances the functions of ultraviolet resistance and aging resistance of the protein material.

The invention relates to the field of wood processing, in particular to an energy-saving decorative plate and a preparation method thereof, and the prepared decorative plate is energy-saving, environment-friendly and high in color fastness to light. The decorative plate comprises a decorative surface layer and a base plate layer arranged below the decorative surface layer, the base plate layer is a high-color-fastness-to-light veneer layer, the thickness of the decorative surface layer is 1.2-1.5 mm, and the decorative surface layer comprises a PVC surface layer; and the PVC surface layer contains polyvinyl chloride resin powder and calcium carbonate powder. The preparation method of the energy-saving decorative plate comprises the following steps: preparing the decorative surface layer: firstly preparing the PVC surface layer, and then sequentially pressing and pasting the color film layer and the transparent surface layer on the PVC surface layer to obtain the decorative surface layer; preparing a substrate layer; and allowing the decorative surface layer and the base plate layer to be subjected to hot pressing, and then coating the transparent skin layer with UV light-resistant paint.

The invention relates to a method for improving the fluorescence dye color fastness of brocade/spandex blended fabrics, and belongs to the technical field of fabric printing and dyeing. The method for improving the fluorescence dye color fastness of brocade/spandex blended fabrics comprises the following steps: preprocessing the brocade/spandex blended fabrics by using mixed plasma including O2 and NH3 in a vacuum chamber; carrying out fluorescence dyeing treatment on the preprocessed brocade/spandex blended fabrics; and post-processing the fluorescence dyed brocade/spandex blended fabrics. The fluorescence dyeing method can substantially improve the dyeing effect of disperse fluorescence dyes in brocade, spandex and brocade/spandex blended fabrics, allows the dyes to be closely combined with the fabrics, and can substantially improve the water washability, the color fastness to rubbing and the color fastness to light of the brocade/spandex blended fabrics.

The invention provides a basic titanium sol dye-fixing agent. The basic titanium sol dye-fixing agent is prepared through sol-gel reaction on butyl titanate, water, alcohol, a catalyst and a silane coupling agent serving as raw materials according to a molar ratio of (1 to 3) to (8 to 16) to (18 to 25) to (2.0 to 3.5) to (0.001 to 0.01). The invention also provides a preparation method of the basic titanium sol dye-fixing agent. The basic titanium sol dye-fixing agent and the preparation method of the basic titanium sol dye-fixing agent disclosed by the invention have the advantages that the colour fastness to light of woods can be obviously improved.

The invention discloses a pure-cotton double-layer jacquard home textile dyeing and finishing method, and belongs to the technical field of pure-cotton fabric dyeing. The method is characterized by comprising the following preparation steps: with a dyeing liquid formula, namely an active dye with two active groups of ethylene sulfuryl and hydroxyl ethylene sulfone sulfate in a main liquid, putting20-50% in percentage by mass of a dye liquid into a dyeing tank, and performing dyeing once; adding the rest dyeing liquid, and performing dyeing once again; adding sodium sulfate, and performing dyeing once; adding alkali powder, and performing dyeing once; adding a soaping agent SN-45, increasing the temperature, and performing dyeing for three times; washing with cold water, adding a neutralization acid, and performing dyeing for three times; performing acid pickling, and discharging a fabric roll. The inventor improves a cotton double-layer jacquard fabric dyeing process, and together with the selected active dye with two active groups of ethylene sulfuryl and hydroxyl ethylene sulfone sulfate in the main liquid, factors such as the soaping fastness, the lifting power of the dye, thedyeing velocity and the curve of the dye, the matching property of the dye, and the like are improved.

The invention relates to the field of textile dyes, and particularly discloses a black dye composition as well as application and a dyeing method thereof. The black dye composition comprises one or more compounds represented by a general formula (I), one or more compounds represented by a general formula (II), one or more compounds represented by a general formula (III), one or more compounds represented by a general formula (IV) and one or more compounds represented by a general formula (V). General formula (I); general formula (II); general formula (III); general formula (IV); general formula (V); the black dye composition is applied to polyester-cotton blended fabric dyeing. The black dye composition disclosed by the invention has good dyeing performance and various color fastness, and can be used for simultaneously dyeing polyester and cotton under a one-bath process, so that the dyeing process is simplified, and the dyeing efficiency is improved.

The invention provides a high-temperature-resistant flame-retardant fiber electrostatic flocking fabric and a preparation method thereof, wherein the flocking fabric comprises a fluff layer, an adhesive layer and a base cloth layer; the fluff layer adopts one or more of aramid fiber 1313, polyimide, polyphenylene sulfide, polysulfonamide, polyacrylonitrile or viscose pre-oxidized yarns, polyether-ether-ketone, poly (p-phenylene benzobisoxazole), basalt fiber, ceramic fiber and glass fiber as fluff fiber, and the length of the fluff is 0.5-3 mm, and the fineness is 0.8-50 D. The flocking fabrichas remarkable flame-retardant properties: the flame-retardant effect is good, the permanent flame-retardant effect is achieved, and the flame-retardant grade can reach A-grade flame retardancy according to GB/T5455.