41results about How to "No carcinogenic effect" patented technology

The invention relates to the technical field of a textile finishing agent, and concretely discloses a fiber dyeing deepening agent. The textile finishing agent is prepared from the following formula raw materials in percentage by mass: 5.0.0 to 10.0 percent of emulsifiers, 10.0 to 20.0 percent of aliphatic amine, 25.0 to 35.0 percent of aliphatic amine derivatives, 3.0 percent of acid, 5.0 to 8.0 percent of aliphatic alcohol, 3.0 to 5.0 percent of urea and the balance deionized water. The fiber dyeing deepening agent has the advantages that the coloring effect on spandex (lycra) and nylon is extremely good; no allergy, no teratogenesis, no mutagenesis and no carcinogenesis are caused; no toxic and side effects are caused on the human body; the energy is saved; the environment is protected.

The invention discloses environmental-friendly rubber filling oil and a preparation method thereof. The method comprises the following steps of: (1) hydrotreating a vacuum cut 3 distillate to obtain hydrotreating oil; (2) extracting the hydrotreating oil in an extraction tower for the first time to obtain raffinate at the tower top of the extraction tower, and recycling a solvent to obtain primary refined oil; preparing extract at the tower bottom of the extraction tower, and recycling the solvent to obtain primary extract oil; (3) extracting the primary refined oil into the extraction tower for the second time to obtain the raffinate at the tower top of the extraction tower, and recycling the solvent to obtain secondary refined oil; preparing extract at the tower bottom of the extraction tower, and recycling the solvent to obtain secondary extract oil, that is to say, environmental-friendly rubber filling oil. The environmental-friendly rubber filling oil, provided by the invention, has the advantages of high aromatic hydrocarbon content, good compatibility with the rubber and excellent processing performance, the mass percentage composition of the aromatic hydrocarbon reaches 19-26%, the environmental-friendly rubber filling oil can be used in a tire manufacturing process, and excellent performances such as good wet traction and the like can be given.

The invention discloses a blending-process method for producing environment-friendly rubber oil. The method provided by the invention comprises the following steps: 1) performing solvent extraction on reduced-pressure residual oil to obtain deasphalted oil, wherein a solvent used for extraction is propane; the volume ratio of the solvent to the reduced-pressure residual oil is (6-8):1; and extraction conditions are tower-top temperature between 70 and 91 DEG C, tower-bottom temperature between 57 and 80 DEG C and pressure between 3.8 and 7.0 MPa; 2) performing solvent extraction on the deasphalted oil obtained in a step 1) to obtain heavy deasphalted oil, wherein the solvent used for extraction is propane; the volume ratio of the solvent to the deasphalted oil is (6-8):1; and the extraction conditions are tower-top temperature between 60and 80 DEG C, tower-bottom temperature between 50 and 70 DEG C and pressure between 2.8 and 3.9 MPa; and 3) mixing the heavy deasphalted oil obtained in a step 2) with naphthenic oil at a temperature between 70 and 90 DEG C for 30 to 120 minutes to obtain the environment-friendly rubber oil, wherein the mass ratio of the heavy deasphalted oil to the naphthenic oil is (0.3-0.7):(0.7-0.3). The environment-friendly rubber oil has the advantage of meeting the requirements of EU 2005 / 69 / EC environment-protecting directives, along with aromatic-carbon rate between 10 and 20 percent, PCA content of less than 3 percent, high aromatic hydrocarbon content, environment-protecting property, no toxicity and no carcinogenic effects. The environment-friendly rubber oil can be used as a substitute for the prior aromatic oil, and has significant economic value.

The invention relates to the technical field of textile printing and dyeing materials and particularly discloses an acidic leveling agent and a preparation method thereof. The acidic leveling agent is prepared from the following components by weight percent: 10.0%-20.0% of an emulsifying agent, 20.0%-45.0% of fatty amine, 8.0%-10.0% of sulfamic acid, 5.0%-8.0% of fatty alcohol, 3.0%-5.0% of urea and the balance of water. The preparation method comprises the following steps: adding the raw materials except water into a reaction kettle in sequence according to the formula and stirring; when adding each type of raw material, stirring for 20-25 minutes; weighing the water amount needed in the formula and adding into the reaction kettle; stirring and reacting for 1 hour; and after finishing, standing and filtering and discharging materials. The acidic leveling agent disclosed by the invention has extremely good diffusivity and mobility, so that dye molecules are uniformly combined with fiber molecules in a dyeing process; the acidic leveling agent is wide in applicability, good in effect and environmentally friendly; and compared with a traditional formula, the agent has the advantages that 10%-15% of the cost is reduced.

The invention relates to a preparation method of environment-friendly rubber filling oil, which comprises the following steps: performing solvent extraction to high-aromatic oil in an extraction column, and recovering solvent from a product obtained in the top of the extraction column to prepare the environment-friendly rubber filling oil, and recovering solvent from a product obtained in the bottom of the extraction column to obtain extract oil; and (B) hydrogenating the extract oil to obtain hydrogenated treated oil, and feeding the hydrogenated treated oil back so as to mix the hydrogenated treated oil with the high-aromatic oil to perform the solvent extraction again, and repeating the steps in the manner hereinabove. By means of the method, the rubber filling oil has high aromatic hydrocarbon content and excellent compatibility with rubber, and has high processability, so that when being used in production process of tires, the rubber filling oil enables the tires to have excellent anti-slippery performance and the like. In the environment-friendly rubber filling oil, the content of polycyclic aromatic hydrocarbon compounds satisfies export European Union standard. The rubber filling oil is toxic-free and has no cancer causing effect, wherein the high-aromatic oil are all converted into the rubber filling oil, thus improving resource utilization rate and actually achieving green and environment protection in the whole process.

The invention relates to a prescription of an anti-yellowing agent and in particular relates to a prescription of a anti-yellowing agent for fibers (such as nylon and nylon elastic fiber). The anti-yellowing agent is characterized by comprising the following components in parts by weight: 10.0-20.0 parts of an emulsifying agent, 20.0-50.0 parts of sulfonic acid, 10.0-40.0 parts of alcohols and the balance being 40.0-10.0 parts of water. The cost of the prescription of the anti-yellowing agent is low and reduced by 10-15% in comparison with the cost of imported finished products, and the anti-yellowing agent has a good anti-yellowing effect. The anti-yellowing agent has the advantages of no formaldehyde, no heavy metal ions, no teratogenesis, no mutagenesis, no carcinogenic actions, no toxic side effect on a human body, conforms to the requirements of the EU (European Union) OeKo-TEX Standard 100 and the requirements of the REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) standard, and can well keep the whiteness and the vividness of fabrics.

The invention discloses a method for producing environment-friendly rubber oil through blending method. The method provided by the invention comprises the following steps that firstly extracting decompressed residual oil with solvent to obtain deasphalted oil, wherein the solvent for extraction is propane, the ratio by volume of the solvent and the decompressed residual oil is (6-8):1, and the extraction conditions are that the temperature of a tower top is 60-95 DEG C, the temperature of a tower bottom is 50-80 DEG C, and the pressure is 2.8-7.0 MPa, secondly mixing deasphalted oil obtained in the first step with naphthenic oil for 30-120 min with 70-90 DEG C to obtain environment-friendly rubber oil, wherein the mass ratio of the deasphalted oil and the naphthenic oil is (0.2-0.6):(0.8-0.4). The environment-friendly rubber oil produced by the invention accords with the environment-friendly instruction requirement of EU 2005 / 69 / EC, wherein aromatic-carbon rate is 12%-18%, the contentof PCA is smaller than 3%, the content of aromatic hydrocarbons is high, and the rubber oil is environment-friendly, nontoxic, and has no carcinogenic effect. The environment-friendly rubber oil can be used as succedaneum of existing aromatic oil, and has great economic values.

The invention discloses a porous grade composite medical gel scaffold constructed by 3D printing and a preparation method thereof. It is composed of the following raw materials according to the mass percentage: 7-30% of hydroxyapatite, and 0.7% of drug-loaded mesoporous silica ‑2%, gluconolactone 11‑16%, and the balance is sodium alginate. The present invention combines hydroxyapatite with alginate solution, and prepares alginate / hydroxyapatite hydrogel material through a simple composite gel approach, which can obtain good biological activity, compatibility, and drug loading and mitigation interpreted medical materials. The 3D printed gel solution in the present invention is added with drug-loaded mesoporous silica, which can play a thickening role and adjust the viscosity of the formula, so that the pre-crosslinked hydrogel can be printed under 3D printing conditions The gel stent is well formed; in addition, the drug load can realize the slow release of the drug, which can prevent the 3D stent from being contaminated by bacteria and play an antibacterial and sterilizing role.

The invention relates to a production technology of high-purity stevioside. The technology is characterized in comprising the steps of: an extraction step, a flocculation step, a membrane filtration step, an adsorptive separation step, a reverse osmosis concentration step, a desalting and de-coloring step, and a recrystallization step. The technology provided by the invention has advantages that: the stevioside is a completely safe foodstuff additive with no toxicity, no side effect, no teratogenic effect, no mutagenic effect, no carcinogenic effect, refreshing taste, good taste, high purity, and high sweetness. Therefore, requirements of people can be satisfied. During a production process of stevioside, no chemical method or chemical raw material is adopted, and no pollutant is discharged. A small amount of waste residual can be comprehensively used as a bio-fertilizer. Stevia leaf is a good organic fertilizer rich in organics, and can be used for improving and fertilizing soil. Therefore, a waste pollution problem is solved from the source.

The invention belongs to the field of textile or papermaking, and relates to the whitening of textiles or paper, in particular to a whitening composition which comprises white vaseline and aluminum chloride. The invention also relates to a preparation method and use of the whitening composition. The whitening composition provided by the invention has advantages of low carcinogenicity, environmental protection, health and no pollution, and has a whitening effect approximate to that of the conventional ordinary whitening agent.

The invention discloses an oil solution of imidacloprid which comprises the following constituents (by weight portions): imidacloprid 0.5-15.5%, stabilizer 1-25%, and balancing dissolvent. The stabilizer being phenylcarbinol and / or isopropanol. The solution can be used for controlling grasshopper and Locusta migratoria manilensis (Meyen).