Process for producing refined cotton with high polymerization degree
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United States of America Patent
Stats
-
Mar 19, 2024
Grant Date -
Feb 16, 2023
app pub date -
Aug 10, 2022
filing date -
Aug 10, 2022
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process for producing refined cotton with a high polymerization degree includes: a. selection of material; b. impurity removal; c. impregnation; d. pretreatment: compounding triethanolamine, sodium carbonate, copper sulfate and magnesium oxide in equal proportion to form a cooking compound adjuvant with a mass concentration of 0.2-0.5%, putting the cooking compound adjuvant into a spherical digester together with the cotton linter subjected to the impregnation treatment, heating to 70 C, stopping heating, and subjecting to idling pretreatment for 40-60 min; e. cooking; f. cooling of the spherical digester; g. formulating a chlorine dioxide bleaching stabilization solution; h. a first stage of bleaching; I. alkali treatment; J. a second stage of bleaching; K. dechlorination; and l. rolling and drying by baking.
First Claim
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International Classification(s)
- 2022 Application Filing Year
- D21C Class
- 79 Applications Filed
- 24 Patents Issued To-Date
- 30.38 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- D21C Class
- 0 % this patent is cited more than
- 1 Age
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