Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pulse type supercritical fluid printing and dyeing process and device

A technology of supercritical fluid and printing and dyeing process, applied in the field of printing and dyeing, can solve the problems such as the failure to recycle the dye liquor, the lack of thermal insulation measures in the dyeing kettle, and the uniformity of product dyeing.

Inactive Publication Date: 2020-10-27
SHANGHAI FULUDI FLUID TECH CO LTD
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing supercritical fluid printing and dyeing technology generally has the following defects: a, the existing supercritical printing and dyeing process is only semi-continuous, and the dyeing kettle has no thermal insulation measures, resulting in a large amount of heat loss in the process; b, the current Some dyeing processes are only equipped with a one-way circulating pump, which leads to certain problems in the uniformity of product dyeing; c, the existing dyeing auxiliaries do not play the best dyeing effect; d, the existing supercritical carbon dioxide printing and dyeing The process has not been effectively combined with the effect of ultrasound; e. The remaining dyeing solution after dyeing has not been recycled in a continuous cycle production
However, it still has the problem of uneven distribution of the velocity field, concentration field and temperature field of the dyeing solution, resulting in low dyeing uniformity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pulse type supercritical fluid printing and dyeing process and device
  • Pulse type supercritical fluid printing and dyeing process and device
  • Pulse type supercritical fluid printing and dyeing process and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] see figure 1 As shown, this embodiment provides a pulsed supercritical fluid printing and dyeing device, including: a superfluid storage tank, a three primary color tank, a dye tank, a pulse generator, a dyeing tank, a dye collection tank, a decompression cooling unit and an extraction separation unit , the three primary color tanks are composed of red tanks, yellow tanks and blue tanks arranged in parallel, the red tanks, yellow tanks and blue tanks are respectively equipped with red, yellow and blue three primary color dyes, and the red, yellow and blue three primary color dyes are installed according to requirements. They are mixed with supercritical carbon dioxide to form a specific color dye solution. The dyeing kettle is composed of 24-25 meters of pipelines, covered with a thermal insulation layer; and divided into four sections along its length, each section of the dyeing kettle is equipped with the pulse injector, ultrasonic Generator and bi-directional circul...

Embodiment 2

[0064] see figure 1 As shown, based on the above pulsed supercritical fluid printing and dyeing device, this embodiment provides a pulsed supercritical fluid printing and dyeing process suitable for printing and dyeing for the first time or continuously printing and dyeing the same product, including the following steps: (1) Carbon dioxide or liquid nitrogen is converted into supercritical carbon dioxide or supercritical nitrogen from the superfluid storage tank through the filtration unit, drying unit, heating unit and pressurization unit in sequence, after pressurization and heat treatment; (2) the converted supercritical carbon dioxide Or supercritical nitrogen is passed into the red tank, yellow tank and blue tank of the three primary colors to mix with red, yellow and blue dyes, and then according to the spindle dyeing requirements, it is fed into the dye tanks in a certain proportion to form a dye solution; (3) using The pulse injector injects the dye solution into the d...

Embodiment 3

[0070] see figure 1 As shown, different from the above-mentioned embodiment 2, based on the above-mentioned pulsed supercritical fluid printing and dyeing device, this embodiment provides a pulsed supercritical fluid printing and dyeing process suitable for printing and dyeing products when production is stopped, including the following steps: (1) Convert liquid carbon dioxide or liquid nitrogen from the superfluid storage tank to supercritical carbon dioxide or supercritical nitrogen after sequentially passing through the filter unit, drying unit, heating unit and pressurizing unit after pressurization and heat treatment; (2) convert the converted supercritical Critical carbon dioxide or supercritical nitrogen are passed into the red tank, yellow tank and blue tank of the three primary colors respectively to mix with red, yellow and blue dyes, and then according to the dyeing requirements of the spindle, they are fed into the dye tanks in a certain proportion to form a dye sol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
heightaaaaaaaaaa
diameteraaaaaaaaaa
heightaaaaaaaaaa
Login to View More

Abstract

The invention discloses a pulse type supercritical fluid printing and dyeing process and device. The printing and dyeing process comprises the following steps: (1) converting liquid-state superfluid into supercritical fluid; (2) mixing the supercritical fluid with a three-primary-color dye to form dye liquor; (3) injecting the dye liquor into a dyeing kettle by adopting pulse type injectors, dyeing spindles from a spindle inlet end under the action of ultrasonic generators and bidirectional circulating pumps, and sending out the spindles from a spindle outlet end after the dyeing is mature; and (4) enabling the dye liquor discharged from the dyeing kettle to flow back to a dye tank for cyclic utilization, or separating and purifying the discharged dye liquor into liquid fluid and dye to berecycled or stored for later use. According to the pulse type supercritical fluid printing and dyeing process and device, the optimal dye liquor conveying condition can be realized through pulse typeconveying, and then the printing and dyeing uniformity and printing and dyeing efficiency are improved; and the printing and dyeing process is green and environmentally friendly, and is clean in production, good in economic benefit and remarkable in environmental benefit.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to a pulse type supercritical fluid printing and dyeing process and a device thereof. Background technique [0002] Supercritical fluid printing and dyeing technology is a new type of printing and dyeing process that uses superfluid CO to dye fabrics under supercritical conditions. Its energy consumption and other comprehensive costs are lower than conventional dyeing processes. A promising industrial production technology. [0003] However, the existing supercritical fluid printing and dyeing technology generally has the following defects: a, the existing supercritical printing and dyeing process is only semi-continuous, and the dyeing kettle has no thermal insulation measures, resulting in a large amount of heat loss in the process; b, the current Some dyeing processes are only equipped with a one-way circulating pump, which leads to certain problems in the uniformity...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D06B3/09D06B23/18D06B23/20D06P1/94
CPCD06B3/09D06B23/18D06B23/20D06B2700/36D06P1/94D06B9/06D06B13/00D06P5/2055D06P5/2066D06P7/00Y02P70/62
Inventor 杨景峰李卫平杨凡
Owner SHANGHAI FULUDI FLUID TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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