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具有提高强度的处理过的薄纸产品
Treated tissue products having increased strength
US-7820010-B2用于提高薄纸强度，同时保持柔软度。
专利摘要
公开了含有添加剂组合物的薄纸产品。例如，添加剂组合物包含含有烯烃聚合物、乙烯-羧酸共聚物或其混合物的水性分散体。烯烃聚合物可包含乙烯和辛烯的互聚物，而乙烯-羧酸共聚物可包含乙烯-丙烯酸共聚物。添加剂组合物还可含有分散剂，例如脂肪酸。添加剂组合物可通过与用于形成纸幅的纤维组合而掺入薄纸幅中。或者，添加剂组合物可在纸幅形成后局部施加到纸幅上。例如，在一个实施例中，添加剂组合物可在起皱操作中作为起皱粘合剂施加到纸幅上。添加剂组合物可提高薄纸幅的强度，而不会实质性地不利影响纸幅的感知柔软度。
Original abstractTissue products are disclosed containing an additive composition. The additive composition, for instance, comprises an aqueous dispersion containing an olefin polymer, an ethylene-carboxylic acid copolymer, or mixtures thereof. The olefin polymer may comprise an interpolymer of ethylene and octene, while the ethylene-carboxylic acid copolymer may comprise ethylene-acrylic acid copolymer. The additive composition may also contain a dispersing agent, such as a fatty acid. The additive composition may be incorporated into the tissue web by being combined with the fibers that are used to form the web. Alternatively, the additive composition may be topically applied to the web after the web has been formed. For instance, in one embodiment, the additive composition may be applied to the web as a creping adhesive during a creping operation. The additive composition may improve the strength of the tissue web without substantially affecting the perceived softness of the web in an adverse manner.
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