30 results about "Fluorescent whitening agent VBL" patented technology

A quantitative determination method of fluorescent whitening agents VBL and ABP used in cigarette paper is characterized in that the method mainly includes steps mention below. The first step is to determine the chromatographic conditions. A chromatographic column is C18, 5Mu m column of 150mm*46mm. A mobile phase is methane or water with 45 / 55(V / V). The flow speed of the mobile phase is 1.0mL / min. The detection wavelengths include an excitation wavelength of 350mm and an emission wavelength of 425mm. The second step is the detection step, which is also a preparation step of a calibration curve. Treatment liquid for paper sample to be detected is injected in a high performance liquid chromatograph. The quality is determined according to the reserved time and the quantity is determined according to the peak area. The invention provides a quantitative determination method of fluorescent whitening agents VBL and ABP used in cigarette paper, which has the advantages of accurate detection and simple operation. The qualitative and quantitative detection of the fluorescent whitening agents VBL and ABP in cigarette paper, filter rod forming paper and cigarette tipping paper is made to be convenient for industry technicians. And potential damages on physical health of customers caused by excess whitening agent can be prevented.

The invention discloses attapulgite washable inner wall paint. The technical proposal comprises the following key points that: the attapulgite washable inner wall paint consists of creamy attapulgite clay, nano-alumina, polyvinyl alcohol superfine powder, instant sodium silicate, anatase type titanium pigments, tributyl phosphate, optical bleaching agent VBL and deionized water. A production method of the attapulgite washable inner wall paint comprises: compounding, crushing, stirring, dispersing, dissolving, homogenizing, emulsifying, defoaming, grinding, and canning into the finished product of the attapulgite washable inner wall paint. The attapulgite washable inner wall paint has the characteristics of no toxicity, odorlessness, hard paint film, fine and soft hand feel, water resistance, alkali resistance and good adhesion. The washable time can be more than 1,000 times, and stains cannot be left after washing for many times. The attapulgite washable inner wall paint is applicableto decorating inner walls of various civil and public buildings and the like.

The invention discloses an attapulgite interior wall emulsion varnish. The key point of the technical proposal of the invention is that the attapulgite interior wall emulsion varnish consists of pastepalygorskite clay, acrylate emulsion, superfine precipitated calcium carbonate, anatase titanium dioxide, droxyethylcellulose, propanediol, tributyl phosphate, a fluorescent whitening agent VBL and deionized water. The method for producing the attapulgite interior wall emulsion varnish comprises the steps of material mixing, crashing, stirring, dispersion, dissolution, homogenization, emulsification, defoaming, grinding and canning to obtain a finished product of the attapulgite paste interior wall emulsion varnish. The attapulgite paste interior wall emulsion varnish has strong adhesive force, high durability, water resistance, scrubbing resistance and dirt resistance; the quality of the product is accordance with standards of 'GB / T 9756-2001 synthetic emulsion resin interior wall coating' and 'GB 18582-2008 hazardous substance limit quantity in interior decoration finishing material of interior wall coating'; and the attapulgite interior wall emulsion varnish is applicable to coatings for interior decoration.

The invention belongs to the field of dyes, and specifically relates to a method for preparing perspiration-resistant and chlorine-resistant indigo dye water by utilizing an indigo paste. The method comprises the following specific steps: S1, adding water into the indigo paste to obtain a water solution of the indigo paste; S2, adding fatty alcohol-polyoxyethylene ether, polyoxyethylene benzene alkyl phenolic ether, nekal and a flourescent brightener VBL into water in sequence, and stirring uniformly; S3, adding the water solution of the indigo paste into the solution obtained in the step S2, then adding sodium hydrogen sulfate, sodium chloride and vinasse, and stirring uniformly; and S4, putting the solution obtained in the step S3 into a dyeing pool, sealing, standing for fermentation until the solution is light yellow, using a whiteware container for sampling vibration observation, and stopping fermentation when a light blue flowing cloud appears in the solution. The indigo dye water prepared in the invention is high in perspiration-resistant color fastness and chlorine-resistant color fastness; and meanwhile, the indigo dye water prepared with the method is high in sunshine-resistant color fastness, washing-resistant color fastness and rub-resistant color fastness, and is also high in dye-uptake.

The invention belongs to the daily chemical industry technical field, in particular to an environmental friendly synthetic detergent taking poly epoxy succinic acid as a washing assistant. The synthetic detergent comprises the following components according to the percentage by weight: 8%-15% of linear alkylbenzene sulphonic acid, 10-30% of poly epoxy succinic acid, 1%-5% of fatty alcohol polyoxyethylene ether (polyoxyethylene fatty alcohol sodium sulfate), 4%-6% of sodium bicarbonate, 4%-6% of borax, 0.5%-1.5% of polyvinyl-pyrrolidone, 5%-12% of sodium silicate, and 0.03%-0.2% of optical brightness VBL, and the rest of bulking agent sodium sulfate, which meets the gross weight of 100%. The poly epoxy succinic acid used by the synthetic detergent as the washing detergent plays a part in anti redeposition and dispersion, not only can chelate with metal ions such as calcium, magnesium and the like but also has dispersive action on calcium and magnetism precipitation, thus achieving the effect of anti redeposition and dispersion and increasing the washing effect. All components in the synthetic detergent have good synergistic action and obvious decontamination and anti redeposition effects. The environmental friendly synthetic detergent does not contain nitrogen and phosphorus, and the poly epoxy succinic acid can be biodegraded; therefore, after being used, the synthetic detergent does not cause the severe harm to the environment.

The invention relates to a method of cloud point extraction for a fluorescent whitening agent VBL in sewage and belongs to the technical field of industrial dye wastewater treatment. The method comprises the following steps: firstly, proportionally mixing an aqueous solution of a surfactant triton X-114 with fluorescent whitening agent VBL-containing wastewater to prepare a cloud point extraction system; adjusting pH and then standing for phase separation; after phase separation, i.e., extraction of the VBL to a lower phase, diluting the lower phase and then adding sodium perchlorate thereto for mixing evenly to undergo secondary phase separation with the VBL shifting to an upper phase; and removing the upper phase containing the VBL with the triton X-114 left in the lower phase that may be used to repeatedly treating the VBL in wastewater. The method allows the cloud point extraction of the VBL in wastewater to a surface active phase by means of the thermosensitivity of the surfactant triton X-114 with a VBL extraction yield reaching up to 99.79% and the recovery of the surfactant triton X-114 above 90%.

The invention discloses a preparation method of fluorescent composite whitened attapulgite, which is characterized by comprising the following steps: (1) after pulverizing attapulgite, screening, adding water to prepare a disperse system with a certain concentration, stirring, standing for some time, taking the supernatant suspension, carrying out centrifugal dewatering on the supernatant suspension, and drying at certain temperature to obtain purified attapulgite; (2) preparing the purified attapulgite into a dispersion, dropwisely adding a silane coupling agent while stirring, heating to react for some time, filtering, washing, drying, grinding and screening to obtain modified attapulgite; and (3) carrying out composite reaction on the modified attapulgite with a melamine-formaldehyde polycondensate and a water-soluble fluorescent whitening agent VBL to obtain the fluorescent whitened attapulgite. The attapulgite surface is modified by the silane coupling agent, thereby enhancing the dispersity of the attapulgite and the coupling action with resin; and the compound obtained by reacting the melamine-formaldehyde resin with the fluorescent whitening agent is compounded onto the attapulgite surface under the coupling action, thereby effectively enhancing the fixation action of the fluorescent whitening agent on the attapulgite surface and achieving the effect of whitening the attapulgite.

The invention discloses a method for producing an attapulgite paste interior wall coating. The key point of the technical proposal of the invention is that the method for producing the attapulgite paste interior wall coating comprises the steps of material mixing, crashing, stirring, dispersion, dissolution, homogenization, emulsification, defoaming, grinding and canning to obtain a finished product of the attapulgite paste interior wall coating. The attapulgite paste interior wall coating consists of paste palygorskite clay, superfine precipitated calcium carbonate, polyvinyl alcohol ultrafines, instant sodium silicate, anatase titanium dioxide, a solid polyether defoaming agent, a fluorescent whitening agent VBL and deionized water. The attapulgite paste interior wall coating has strongadhesive force, high durability, water resistance, friction resistance and dirt resistance, and can absorb formaldehyde and volatile organic compound to purify the air. The attapulgite paste interiorwall coating is a white reference coating and can be directly adjusted in colors to produce color washes of various colors; and the method for producing the attapulgite paste interior wall coating issuitable for producing environment-friendly interior wall coatings.