36results about How to "Block exchange" patented technology

The invention provides a substrate treatment device and a substrate treatment method. The device comprises a first load cavity, a first valve and a treatment cavity, wherein the first valve is arranged between the first load cavity and the treatment cavity, and is used for connecting the first load cavity with the treatment cavity, the substrate treatment device further comprises an air pressure regulation unit, so when the first valve is opened, the air pressure of the first load cavity is higher than the pressure of the treatment cavity. During the conveying process of a substrate, through controlling the air pressures of the first load cavity and the treatment cavity, the air in the treatment cavity cannot enter the first load cavity, so a film cannot be precipitated on the surface of a device in the first load cavity, accordingly, the service life of the first load cavity is prolonged, and the maintenance cost of the first load cavity is reduced.

The invention discloses a full-width mercerizing machine for knitting. The full-width mercerizing machine comprises a supporting bottom plate, a cloth feeding mechanism, an alkaline dipping mechanism, a washing mechanism and a cloth falling mechanism, wherein the alkaline dipping mechanism comprises a dipping groove, a cloth feeding roller, a mangle roller and a cloth discharging roller; the cloth feeding roller and the cloth discharging roller are respectively arranged on the dipping groove; the mangle roller is arranged in the dipping groove which is provided with a shading component; the shading component is positioned above the mangle roller; the washing mechanism comprises a cleaning groove, a cloth guiding roller, a transmission roller and a washing component; the cloth guiding roller, the transmission roller and the washing component are respectively arranged on the cleaning groove; the cleaning groove is internally provided with a partitioning plate which partitions the cleaning groove into an alkaline washing area and a water washing area; the transmission roller is positioned above the partitioning plate; an alkaline washing roller is arranged in the alkaline washing area, and a water washing roller is arranged in the water washing area. The full-width mercerizing machine disclosed by the invention has the advantages that the structure is simple, the connection is flexible, the cleaning effect is good, the volatilization of dipping liquid can be reduced, a finished fabric product is good in handfeel and large in strength, the production efficiency is high and the practicability is strong.

The invention relates to a film-coated fresh-keeping agent specially used for boiled salted duck eggs. The present invention uses natural degradable polyvinyl alcohol and chitosan as the main substrate, supplemented with stearic acid, glutaraldehyde, whey protein concentrate, nano-TiO2, nano-SiO2, Kelingu, solvents and other materials or Processing aids to obtain coating film preservatives with barrier properties, antibacterial properties and mechanical properties. Through the data of mechanical properties, barrier properties and antibacterial properties of coating films obtained from different formulations, finally obtain special coating film preservation for boiled salted duck eggs agent, the beneficial effects of the present invention are: it can prevent the exchange of materials inside and outside the eggshell and the infection of various harmful microorganisms during the storage process of boiled salted duck eggs, and has a certain antibacterial effect, reducing the loss of dry matter and water, making Cooked salted duck eggs maintain good storage quality, extend the high-quality shelf life, and replace the existing plastic composite retort bag packaging, which can not only reduce the amount of plastic used, reduce environmental pollution, but also reduce production costs and increase profits.

The invention relates to the technical field of PC / PET (polycarbonate / polyethylene terephthalate) alloy, and particularly relates to halogen-free flame retardant PC / PET alloy and a preparation method thereof. According to the preparation method, ethylene-butyl acrylate and an ethylene-acrylate-maleic anhydride terpolymer are used as compatible reagents so as to draw on advantages to make up for disadvantages and give play to a synergistic effect, so that the compatibility of the PC / PET alloy is improved, thus the mechanical property of the PC / PET alloy is improved. As a phosphorous-nitrogen fire retardant adopted in the PC / PET alloy has high stability, the forming temperature requirements can be completely satisfied, and the flame retardancy effect is excellent. According to the preparation method, phosphorous acid is added so as to prevent ester exchange of PC and PET in an alloying process. In short, the good mechanical property and the flame retardant property of the halogen-free flame retardant PC / PET alloy are realized through a perfect formula system; the preparation technology is simple and low in cost.