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公开(公告)号：US20220333311A1
公开(公告)日：2022-10-20
申请号：US17640429
申请日：2020-09-04
摘要： The invention is to provide a base paper for a raising seedling pot and a raising seedling pot produced from the base paper, wherein while the base paper maintains a sufficient strength during raising seedlings and planting in the field, it is degraded over time by soil microorganisms after transplanting in the field and is produced by using a crosslinking agent that does not contain formaldehyde, resulting in a reduced burden on the environment; the base paper for a raising seedling pot, wherein a citric acid crosslinking agent, as a crosslinking agent for cellulose, is used in order to block the hydroxy group of cellulose in paper through crosslinking; and the raising seedling pot produced by molding and processing the base paper.
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公开(公告)号：US20240026610A1
公开(公告)日：2024-01-25
申请号：US18042829
申请日：2021-03-04
摘要： There is provided: a method for controlling corrosion-resistant paper with easy decomposability, whereby the paper has corrosion resistance against decomposition due to microorganisms in soil when raising seedlings, the paper retains satisfactory strength during agricultural planting, and desired decomposability is given to the paper after planting or after harvest of crops; and a method for producing corrosion-resistant paper with controlled decomposability. The controlling method is subjected to corrosion-resistant paper containing paper with cellulose fibers and a carboxylic acid crosslinking agent at least partially bonded to each other, the controlling method including a step for treating the corrosion-resistant paper with alkali; and the producing method comprises a step for applying a processing solution containing a carboxylic acid crosslinking agent to paper containing cellulose fibers, a step for subjecting the paper to a heating treatment, and a step for treating the paper undergone the heating treatment with an alkali.
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