2results about How to "Increase sizing rate" patented technology

The invention relates to the field of spinning, in particular to starch slurry for sizing glass fiber yarns for weaving and a preparation method of the starch slurry. The method comprises the following steps: refining starch; acidolysis of starch; the preparation method comprises the following steps: mixing starch milk, a silane coupling agent and a catalyst a for reaction under inert gas and water bath heating conditions to obtain modified starch A; the silane coupling agent is prepared from vinyl trimethoxy silane, vinyl triisopropoxy silane, a silane coupling agent KH-560 or gamma-aminopropyl triethoxy silane, and the silane coupling agent is prepared from vinyl trimethoxy silane, vinyl triisopropoxy silane, a silane coupling agent KH-560 or gamma-aminopropyl triethoxy silane; mixing and reacting starch milk, a functional monomer and a catalyst b under inert gas and water bath heating conditions to obtain modified starch B; the functional monomer comprises 3-chloro-2-hydroxypropyl trimethyl ammonium chloride, butyl acrylate, sodium allysulfonate, acrylic acid or methyl acrylate; gelatinizing the starch milk, adding a textile auxiliary agent, and uniformly mixing. The starch size is applied to sizing of glass fiber yarns for weaving, the sizing rate is high, and a product has high bundling property, high wear resistance, high elasticity, excellent mechanical property and excellent flexibility.

The utility model relates to the technical field of coating equipment provides a kind of fibre and fabric coating equipment, heating assembly is evenly arranged in first box, coating roller is located on first box, coating roller can rotate about its axis, and dip coating medium in the rotating process, coating roller is equipped with uniform heating part, heating mechanism is used to provide heat to heating assembly and uniform heating part, the utility model makes its temperature controllable by directly heating coating medium, cooperate with the coating roller with heating function, reduce the temperature fluctuation of coating medium, avoid the fluctuation of coating medium viscosity or film-forming property change, effectively improve sizing rate, adopt the way of gravity type automatic liquid supplement and liquid level monitoring, avoid the phenomenon that coating medium produces foam in production process, avoid the introduction of external impurities.