41results about How to "Easy to bleach" patented technology

The invention discloses a pearl bleaching technology, which comprises the following steps that: in the sufficient sunshine, pearls after being polished are put into prepared bleaching liquid and soaked at the temperature ranging from 14 to 17 DEG C for 48 to 50 hours for bleaching treatment, and then rinsed and dried; the step is repeated for at least one time; classification: unqualified pearls are screened out and the bleaching treatment for unqualified pearls continues to be repeated for at least one time. In the invention, the format of the bleaching liquid, consisting of a hydrogen peroxide bleaching agent, a composite interface agent, a composite catalyst and a methanol solvent, is adopted for bleaching at the low temperature of 14 to 17 DEG C so as to realize the good bleaching effect under low concentrations of the hydrogen peroxide bleaching agent within a short time, thus effectively reducing the damage to the skin of the pearl and improving the glossiness of the pearl. By adopting the method of the invention, the pearls bleached have better gloss, smooth surface, higher whiteness and good stability.

The invention relates to a method for making pulp by cold soaking for papermaking, and belongs to the technical field of papermaking. Firstly, the raw materials used for papermaking are twisted into fiber filaments; the active agent, soaking main liquid and soaking auxiliary liquid are prepared separately, and the active agent is put into the mixed liquid of soaking main liquid and soaking auxiliary liquid to obtain the soaking liquid; Soak in liquid at room temperature for 36-72 hours; grind and beat the soaked pulp to make the pulp hardness 12-18. The pulping process of the method does not use alkali, does not need a large amount of water washing, avoids the discharge of sewage, and greatly saves water. Compared with the strong alkali method, its pulp yield can be increased by 20%. The pulp produced by the method of the invention has wide sources of raw materials, less water and coal consumption, low papermaking cost, and the prepared pulp can be used to manufacture box board paper and high-strength corrugated paper.

The invention relates to a low energy consumption clean paper pulp extracting method and a papermaking process thereof, solving the problems that fibrous raw materials need to be boiled at high temperature and pressure in the pulp preparing and papermaking processes and chemical solutions produce a large quantity of black or red liquid in the pulp preparing and papermaking processes to cause great waste to resources and great pollution to the environment in the prior art. The invention adopts the following technical scheme: the low energy consumption clean paper pulp extracting method is realized by removing impurities from biomass raw materials rich of fiber, crushing, softening and soaking, separating organic matters, grinding and pulping, wherein a softening and soaking solution contains the following components in percent by weight: 10-20 sodium oxide, 3-5 sodium carbonate, 0.5-2.5 penetrating agent T, 0.5 magnesium oxide and 0.05-0.15 chelating agent EDTA. The papermaking processmatched with the method comprises the following steps: getting materials ready, rubbing to devillicate, soaking to react, separating liquid medicine, spirally squeezing pulp, refining with high consistency, removing slag, coarsely screening and making paper. The pulp preparing process has simple course, no high requirements on environment and equipment condition, easily popularized technology, norequirement on the scale of production, low costs for building production lines and purchasing equipment and less running expense.

The invention relates to paper stuff manufacturing process by using grain grass fiber raw material, more concretely, a method of using black liquor as raw material for primary and secondary boiling liquor for cyclic utilization. The primary boiling is implemented under lower temperature, and while using secondary boiling liquor to displace and discharge the thick black liquor, the fiber in spherical digester which has subjected to the primary boiling is washed, and subjects to the secondary boiling in high temperature, and then pulp is subject to countercurrent washing. The process is used in pulping, and the black liquor can be periodic used thereby reduce environment pollution. Black liquor that per ton of pulp discharges can reduce 50%, and water can be saved for 50%.

The invention discloses grass series fiber pulping technology. It includes preprocessing, once and secondary steam boiling. Its advantages are that it can reduce environment pollution that the discharged black liquor can be reduced by 50% per ton; silicon content can be reduced by 50%; water can be saved by 50%; the formed slurry has light color, high brightness, low hardness, high strength, easypulping and bleaching.

The vertical paper pulp boiling pot has steam heating pipe with steam inlet on its one end and steam pores on its wall. By means of the steam heating pipe and the circular heating, the paper pulp boiling pot has homogeneous pulping, raised boiling speed, raised straw pulp quality and yield. The prepared straw pulp may be used to replace wood pulp, and hw light color, high whiteness, low hardness, high strength and other advantages. In addition, the black liquor may be reused to reduce drainage and save water.

The invention discloses a sample pretreatment method based on flow combination ICP-MS (Inductively Coupled Plasma Mass Spectrometry) single cell protein detection, and belongs to the technical field of sample pretreatment of flow cytometry. The sample pretreatment method comprises the following steps: (1) collecting and transporting a whole blood sample; (2) performing PBMC (Peripheral Blood Mononuclear Cell) cell separation; (3) performing cell active dyeing; (4) performing cell stimulation; (5) performing cell immobilization; (6) performing surface antibody dyeing; (7) performing intracellular phosphorylated protein dyeing; (8) performing single cell labeling, and the like. With the combination of a metal element labeled antibody with cell surface antigen, labeled cells are mixed with beads as internal reference for standardization, dead cells and living cells are distinguished in the pretreatment process, then the situation that the testing result analysis and description are affected by too many dead cells is avoided, single cells are distinguished from cell dimmers, cell trimers or even cell multimers, and flow combination ICP-MS single cell protein detection requirements can be very well met.

The invention provides a bleaching agent composition. The bleaching agent composition comprises the following raw materials in parts by weight: 2-98 parts of chemical bleaching agent, 1-95 parts of bleach stabilizer, 1-98 parts of rare earth, 1-95 parts of whitener, 1-98 parts of light bleaching agent, 1-98 parts of light absorption agent and 0.1-10 parts of bluing agent. Due to the adoption of the raw materials such as rare earth, the bleaching agent composition provided by the invention has the advantages that in the case of less consumption, fabrics can be bleached more easily and more thoroughly, and white fabrics are good in brightness and whiteness maintenance and have better hand feeling after the white fabrics are washed. The invention further provides a detergent composition comprising the bleaching agent composition. The detergent composition has a bleaching effect besides good washing and decontaminating effects.

The invention relates to an active pulping agent for papermaking and belongs to the technical field of papermaking. The pulping agent is composed of an active agent, a main agent and an auxiliary agent, wherein the active agent is composed of: secondary octanol polyoxyethylene ether, oxidized polyethylene emulsion, ethanol, sodium dodecylbenzenesulfonate, sodium percarbonate , alkaline protease and talcum powder; the ingredients of the main agent are: calcium hydroxide, anthraquinone, sodium percarbonate, sodium dodecylbenzenesulfonate, anhydrous sodium sulfite and talc powder; the ingredients of the auxiliary agent are: alkaline protease , sodium percarbonate and talcum powder; mix active agent, main agent and auxiliary agent with each other, and stir evenly. The active pulping agent for papermaking of the present invention can be used for papermaking without using alkali and washing with a large amount of water, avoiding the discharge of sewage and greatly saving water. Compared with the strong alkali method, its pulp yield can be increased by 20%. The amount of chemical raw materials used is much less than that of the traditional papermaking process, which makes the pulp easy to bleach, consumes less water, contains less pollutants, and makes the middle water in the papermaking process easy to treat.

A preparation method of Fe3O4@PEG@SiO2 artificial antibody for detecting thifensulfuron methyl comprises modifying the surface of Fe3O4 magnetic nanoparticles with polyethylene glycol 2000, coating the surface with SiO2 shell layer to form a core-shell-shell structure, diluting marker molecules in the SiO2 shell layer to form specific recognition site holes complementary with marker molecular structure, size and functionality so as to arrive at molecular selective recognition and detection for target analyses. The preparation method of the artificial antibody comprises the steps of first, preparing Fe3O4 magnetic nanoparticles, and modifying their surface with polyethylene glycol; second, adding the target molecule thifensulfuron methyl, a crosslinking agent and a catalyst, and hydrolyzing to obtain Fe3O4@PEG@SiO2 particles with surface-marked thifensulfuron methyl; third, diluting template molecule with a mixed solution of acetic acid and acetone having a volume ratio of 1:4 to obtain the Fe3O4@PEG@SiO2 artificial antibody with selective recognition marker molecules, the antibody having maximum saturated binding capacity of 41.28 mg / g for thifensulfuron methyl, the absorption rate reaches 0.45 mg / g.min within first 30 min which is 5.34 times and 3.46 times that of a non-marking method.

The invention provides a production process of bamboo-dissolving pulp, relating to a treatment method in the field of textile chemical fiber. The process comprises the following procedures of: preparing materials; steaming and pre-hydrolyzing; exchanging steaming and boiling; hermetically screening; bleaching in oxygen-alkali; carrying out acid treatment; manufacturing paper with pulp; and the like. The bamboo-dissolving pulp produced by the invention has the advantages of good product quality, uniform viscosity, high alphacellulose content, high whiteness, yellowing resistance, low pentaose content and good reaction performance and is favorable to production of post-procedures, chlorine-free bleaching and environment-friendly production.