Compound crystal transition modification method of flax yarn
A compound crystal and modification technology, which is applied in liquid/gas/steam treatment of a certain length of textile materials, textile material processing, textiles and papermaking, etc., can solve problems such as difficult removal, reduced crystallinity, and yarn erosion , to achieve excellent soft performance, improve dimensional stability, and soft yarn
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0026] A compound crystal change modification method for flax yarn, in which 5 flax yarns are placed in a closed container, filled with liquid ammonia, and the pressure is boosted in a linear boosting manner, and the boosting rate k satisfies the relational expression Initial boost rate k 0 The pressure is 0.5MPa / min, pressurized to a modified pressure of 1.2Mpa, maintained for 3min, and then instantly released to 0.0012Mpa within 3 seconds at a depressurization rate of 0.5MPa / s. Finally, the modification medium in the flax yarn was removed by high-speed centrifugal spin dehydration, microwave heating and vacuum vacuuming in parallel to obtain the composite crystal modification modified flax yarn. Among them, the high-speed centrifugal rotation speed reaches 120rpm, the rotation time can reach 10min, and the radial draft reaches 2.5mm; the power of a single modified kettle in microwave heating is 1kW; the vacuum is pumped to negative pressure and below. Compared with the mic...
Embodiment 2
[0028]A compound crystal change modification method for flax yarn. 20 counts of flax yarn are placed in an airtight container, filled with liquid ammonia, and boosted in a linear boosting manner. The boosting rate k satisfies the relational expression Initial boost rate k 0 It is 0.8MPa / min, pressurized to a modified pressure of 1.5Mpa, maintained for 5 minutes, and then released to 0.0015Mpa within 3 seconds at a depressurization rate of 0.5MPa / s. Finally, the modification medium in the flax yarn was removed by high-speed centrifugal spin dehydration, microwave heating and vacuum vacuuming parallel evaporation method, that is, the composite crystal modification modified flax yarn was obtained. Among them, the high-speed centrifugal rotation speed reaches 140rpm, the rotation time can reach 10min, and the radial draft reaches 3mm; the power of a single modification kettle in microwave heating is 5kW; the vacuum is pumped to negative pressure and below. Compared with the micr...
Embodiment 3
[0030] A compound crystal change modification method for flax yarn. 80 counts of flax yarn are placed in a closed container, filled with liquid ammonia, and boosted in a linear boosting manner. The boosting rate k satisfies the relational expression Initial boost rate k 0 The pressure is 1MPa / min, boosted to a modified pressure of 1.8Mpa, maintained for 8 minutes, and then released to 0.0018Mpa within 2 seconds at a depressurization rate of 1MPa / s. Finally, the modification medium in the flax yarn was removed by high-speed centrifugal spin dehydration, microwave heating and vacuum vacuuming parallel evaporation method, that is, the composite crystal modification modified flax yarn was obtained. Among them, the high-speed centrifugal rotation speed reaches 140rpm, the rotation time can reach 10min, and the radial draft can reach 3.5mm; the power of a single modified kettle in microwave heating is 10kW; the vacuum is pumped to negative pressure and below. Compared with the mic...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com