Glue cotton mop head quality glue cotton mop known as: "magic sponge drag", "magic sponge drag", which is better than the old mop mop characteristics embodied in PVA glue cotton mop head rub on gray absorbing magical effect. Therefore, glue cotton mop head is a quality directly related to the glue cotton mop ease of use and durability, quality glue cotton mop signed as follows: (1) collodion ingredients, good glue cotton head, the main ingredient is PVA , poor little content PVA glue cotton head, mainly starch into a low price, as a general sales charges can distinguish it so good collodion head, which the factory is soft, the water contains a certain moisture because a very high proportion of PVA with mildew resistance, if the factory glue cotton head is hardened, as the average consumer is concerned, there is no ability to do the factory can be considered high-quality glue cotton, the main ingredient has its head collodion changes to the starch. The price per tonne of starch cheaper than thousands of pieces of new polyvinyl alcohol. Some manufacturers in order to reduce costs, increase collodion head starch content, such production out of glue cotton mop head less than three months will be moldy, broken, so as to avoid the sellers get a hand can be seen collodion too poor, black heart of the manufacturers on the use of drying or add fungicide way to prevent mildew, but marketing costs in two to three months after purchase using the black mildew occurs, the impact-absorbent plastic cotton head and prone odor. http://www.jjbqjyp.com/upload/day_141108/201411081142018004.gif (2) collodion color, poor majority collodion head of steam with low production costs, foam, including bubble process is completed in an instant, uneven foam, pore distribution is not uniform, the adsorption capacity is low, the degree of coloring is not high, high-quality water used in collodion foam, high water system cost, out of the plastic foam colored cotton head is good, the average pore distribution, adsorption and strong. Low-quality and high-quality water to wash down collodion able to distinguish by low-quality glue cotton washed in water causes water to become faint collodion head color, high-quality glue cotton does not fade, water is still clear. To view the naked eye through a collodion color whether it is bright colors, two to the head cross-sectional view of cotton and cotton head iron clamps stomatal next distribution is uniform. (3) collodion Toughness: poor collodion as containing a high proportion of starch, poor toughness, hand peeling, flaking can be collodion block, high-quality collodion easy to peel. In use, the difference between the collodion after a period of time will find sidebar become dentate, resulting in a loss is like, high-quality collodion then remained flat. There is produced by standard techniques cotton head elastic, absorbent, poor cotton head elastic enough water absorbent cotton head and squeeze water declined significantly, after a month or two will be stretched cotton head deformation, so that glue shorten the life of the cotton head