191results about How to "Harmless to health" patented technology

The invention discloses an emulsified metal cutting fluid composition, which consists of base oil or oily agent, mixed alcohol amine, anionic surfactant, nonionic surfactant, antirust agent, copper alloy corrosion inhibitor, bactericidal antiseptic, etc. composition. The invention has strong versatility, is suitable for processing various metals, especially for processing aluminum alloy metals, has excellent lubricity, anti-corrosion effect, low cost, and does not contain toxic and harmful substances such as nitrites and phenols. Harmless to the environment and the health of operators.

The invention discloses a new dyeing method of an active dye taking methylsiloxane as a medium. In the invention, a non-aqueous medium is adopted, which can rapidly close to a fiber surface under the condition of not adding electrolyte for accelerating dye completely, thereby obviously improving adsorption rate and equilibrium adsorption capacity of the active dye, improving fixation rate of the dyeing, completely avoiding the problems of environment and zoology caused by using a large number of inorganic salts, and realizing salt-free dyeing of the active dye in a real meaning. The medium adopted by the invention can be used repeatedly, thereby reducing environmental pollution.

The invention relates to elastic glove airtightness detecting and quick wearing equipment with a disinfecting function. The equipment comprises two disinfecting cavities with disinfecting devices inside, a through hole for mounting an elastic glove sleeve fixing ring is formed in one side of each cavity, a finger sleeve section of each glove is positioned inside the corresponding disinfecting cavity, a sleeve end of each glove is fixed on the corresponding disinfecting cavity through the corresponding fixing ring, and quick wearing of the gloves can be completed under control action; gas pipeline joints connected with a two-way air pump to serve as an air source are arranged on two sides of the bottom of each disinfecting cavity, a low-power ozone generating piece is mounted at the bottom of each disinfecting cavity to serve as one disinfecting device, and a pressure detection switch for inside pressure detection and closed-ring control of the corresponding disinfecting cavity is mounted at the bottom of each disinfecting cavity; a gas pipeline is assembled with an electromagnetic valve, a flow adjusting valve, a one-way valve and a sterilizing filter and is connected to each disinfecting cavity and the corresponding air pump. A wearer steps on an outside pedal switch to generate negative pressure, balance pressure and positive pressure in the disinfecting cavities so as to enable the elastic gloves which are worn completely to contract and automatically shed from the sleeve fixing rings to hands of the wearer.

The invention provides a plated piece and a preparation method thereof. The plated piece comprises a matrix and a fingerprint resisting layer formed on the surface of the matrix, the combination surface of the matrix with the fingerprint resisting layer has a roughness of 0.05-0.25mun, the fingerprint resisting layer is a nano-polytetrafluoroethylne layer, and a micro-nano mastoid structure is formed on the surface of the fingerprint resisting layer. The preparation method of the plated piece comprises the following steps: 1, providing the matrix; 2, roughening one surface of the matrix to make the surface have the roughness of 0.05-0.25mun; and 3, depositing the fingerprint resisting layer on the matrix-roughened surface with a plasma assisted deposition plating process.