In many industries, it is desirable to provide protective equipment, especially gloves, to protect employees from cuts. Ideally, these protective articles should provide satisfactory cut resistance while having suitable flexibility and durability. To this end, protective articles with these qualities are made from yarns that include high performance fibers for enhanced cut resistance. However, in the prior art, due to the influence of the yarn material, the wear resistance, cut resistance, tear resistance and puncture resistance of safety protective gloves are insufficient.
Technical realization elements: The purpose of the present invention is to provide a preparation method of glass fiber covered yarn for gloves, so as to solve the above technical problems. In order to achieve the above purpose, the technical scheme of the present invention is: a preparation method of Fiberglass covered yarn for gloves, comprising the following steps: (1) Weighing the following raw materials by weight: 50-55%; Silicon oxide, 10-15% boron oxide, 0.1-0.5% sodium oxide, 10-15% aluminum oxide, 15-22% calcium oxide, 0.1-0.5% zirconium oxide, 0.1-0.2% iron oxide, 0.1-0.5% porous Graphene, after the weighed raw materials are pulverized, stirred and mixed, mixed and melted in a furnace at 1200 to 1500 ° C to obtain a high-temperature glass liquid, and then the high-temperature glass liquid is drawn into filaments by rapid cold unloading through a spinning box by means of gravity to obtain Glass fibers with a fineness not greater than 0.3 denier; (2) subjecting the glass fibers obtained in step (1) to acid leaching pretreatment; (3) adding the pretreated glass fibers in step (2) into a rare earth salt solution, and ultrasonically Treat in the field for 30-60min, then filter and dry to constant weight; (4) Immerse the glass fiber treated in step (3) in the coupling agent solution, soak for 10-30min, and then heat to 80-90℃ , stirring at a rotational speed of 1000-1500 r/min for 20-60 min, filtering and drying to obtain ultra-fine glass fibers; (5) coating the ultra-fine glass fibers obtained in step (4) with sizing agent, and coiling at high speed into a silk cake, The silk cake is processed into a glass fiber yarn by a spinning machine; (6) the glass fiber yarn obtained in step (5) is covered with spandex yarn by an air-covering method. Preferably, the step (2) specifically includes: immersing the glass fiber obtained in the step (1) in a hydrochloric acid-ammonium chloride mixed solution, heating to 70-85° C., keeping the temperature for 20-40 min, washing with water, dehydrating and drying to obtain Pretreated glass fiber. Preferably, in the step (2), in the hydrochloric acid-ammonium chloride mixed solution, the mass concentration of ammonium chloride is 30-40%, and the concentration of hydrochloric acid is 1-2 mol/l. Preferably, in the step (3), the rare earth salt is yttrium chloride. Preferably, in the step (3), the concentration of the rare earth salt in the rare earth salt solution is 0.1-0.5 mol/l. Preferably, in the step (4), the coupling agent is a chromium complex coupling agent, a zirconium coupling agent, a silane coupling agent, a titanate coupling agent, an aluminate coupling agent At least one of coupling agent, maleic anhydride and its graft copolymer coupling agent, and polyurethane coupling agent. Preferably, in the step (4), the coupling agent is at least one of silane coupling agent kh550, silane coupling agent kh560, and silane coupling agent kh570. Preferably, in the step (4), the ratio of the mass of the treated glass fiber to the volume of the coupling agent solution is 1:5-10 (g/ml). Preferably, in the step (6), the fineness of the spandex yarn is 20-70d. Preferably, the step (6) specifically includes: simultaneously drafting the glass fiber yarn obtained in the step (5) and the spandex yarn, and regularly spraying the high-compressed air to form a rhythmic network point yarn.
Compared with the prior art, the beneficial effect of the present invention is that: the present invention adopts rare earth salt and coupling agent to modify the glass fiber, which can improve the wear resistance and lubricating performance of the glass fiber, thereby improving the glass fiber covered yarn. The strength, wear resistance and lubricating performance of the yarn; the glass fiber covered yarn provided by the present invention not only has the high strength of glass fiber, but also combines the elasticity and toughness of spandex, and can be directly used to make a cut-resistant cut-resistant yarn. gloves.
