CN102877329A - Supercritical carbon dioxide dyeing method - Google Patents
Supercritical carbon dioxide dyeing method Download PDFInfo
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- CN102877329A CN102877329A CN2012103110447A CN201210311044A CN102877329A CN 102877329 A CN102877329 A CN 102877329A CN 2012103110447 A CN2012103110447 A CN 2012103110447A CN 201210311044 A CN201210311044 A CN 201210311044A CN 102877329 A CN102877329 A CN 102877329A
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Abstract
The invention provides a supercritical carbon dioxide dyeing method, which includes the following steps: 1) winding a fabric on a distributing rack and hung in a high-pressure dyeing kettle, unscrewing a kettle cover to feed in a certain amount of filter cakes and screwing the kettle cover; 2) adjusting the temperature and pressure on the control panel to object values, opening a condensing device to start a carbon dioxide steel cylinder to feed gas into a system, pressurizing the system by starting a plunger pump after the steel cylinder pressure and the system pressure are balanced, and starting a circulating pump to enable the fluid in the system to be circulating; 3) timing the dyeing after the pressure and temperature reach the preset values; 4) opening a reducing valve to release pressure after the dyeing set time is balanced under the temperature and pressure, enabling the carbon dioxide to be recovered into the steel cylinder through a separating kettle, and discharging the remaining carbon dioxide after the pressure in the steel cylinder and the system is balanced; and 5) opening the dyeing kettle after the system is cooled to the room temperature, so as to take out the dyed fabric. The dyeing process is environment-friendly, energy-saving, water-saving, economical and efficient.
Description
Technical field
The present invention relates to a kind of colouring method, relate in particular to a kind of supercritical carbon-dioxicle dyeing method.
Background technology
Traditional dyeing and finishing processing is the industry of water consumption maximum in the textile industry.The medium of dyeing needs large water gaging, dyes the rear operation such as clear water flushing that needs equally.The chemical kind that traditional colouring method uses is various, when especially adopting DISPERSE DYES, reducing dye or azoic dyes insoluble azo dyes to dye, because DISPERSE DYES itself is water insoluble, must in dyeing course, add a large amount of diffusants, surfactant etc. to obtain satisfied Color.In view of the foregoing, contain a large amount of not dyestuff and the auxiliary agents of set after the dyeing in the sewage of discharging, these auxiliary agents and not the dyestuff of set remain in the dye liquor and pollute.And the characteristics such as dyeing waste water has, and organic pollution content is high, colourity is dark, alkalescence is large, change of water quality is large belong to unmanageable industrial wastewater.So, to prevent and remedy pollution from the source, developing green dyeing and finishing New Machining Technology becomes the new trend of current textile printing and dyeing industry.
Summary of the invention
Technical problem to be solved by this invention provides a kind of supercritical carbon-dioxicle dyeing method, the method environmental protection, and energy-conservation, water saving, economic, efficient.
In order to solve the problems of the technologies described above, the present invention has adopted following technological means:
A kind of supercritical carbon-dioxicle dyeing method of the present invention comprises the steps:
Step 1, with fabric wrapping on cloth bracket, and be suspended in the high pressure dyeing still, screw kettle cover and in the dyestuff still, add a certain amount of filter cake, screw kettle cover;
Step 2, on control panel, temperature, pressure are adjusted to desired value, opening condensing unit unlatching carbon dioxide steel cylinder exits in system, when steel cylinder pressure and system pressure balance, the opening plunger pump pressurizes to system, and the ON cycle pump makes system fluid be in recurrent state simultaneously;
Step 3, after pressure and temperature reaches predetermined value, dyeing timing;
Step 4, under temperature and pressure, after the balance dyeing stipulated time, open the pressure-reducing valve pressure release, carbon dioxide is recycled in the steel cylinder, when treating steel cylinder pressure and system pressure balance, with remaining CO2 emission through behind the separating still;
Step 5, system cools are opened dyeing caldron to room temperature, take out the fabric after dyeing.
Supercritical CO 2 dyeing technology of the present invention is a kind of environmental protection, energy-conservation, water saving, economic, efficient dyeing, and its economic benefit and social benefit are all very remarkable.
The specific embodiment
In order to understand better the present invention, the present invention will be described in detail below in conjunction with a specific embodiment: supercritical carbon-dioxicle dyeing method of the present invention comprises the steps:
Step 1, with fabric wrapping on cloth bracket, and be suspended in the high pressure dyeing still, screw kettle cover and in the dyestuff still, add a certain amount of filter cake, screw kettle cover;
Step 2, on control panel, temperature, pressure are adjusted to desired value, opening condensing unit unlatching carbon dioxide steel cylinder exits in system, when steel cylinder pressure and system pressure balance, the opening plunger pump pressurizes to system, and the ON cycle pump makes system fluid be in recurrent state simultaneously;
Step 3, after pressure and temperature reaches predetermined value, dyeing timing;
Step 4, under temperature and pressure, after the balance dyeing stipulated time, open the pressure-reducing valve pressure release, carbon dioxide is recycled in the steel cylinder, when treating steel cylinder pressure and system pressure balance, with remaining CO2 emission through behind the separating still;
Step 5, system cools are opened dyeing caldron to room temperature, take out the fabric after dyeing.
Because the special aromatic ring structure of kevlar fabric, in the lower situation of temperature and pressure, dyestuff dyes on the fabric fibre on being difficult to, continuous rising along with temperature, the aromatic ring strand can produce some motions under High Temperature High Pressure, supercritical carbon dioxide is at the Swelling Functions to fabric of High Temperature High Pressure, so that the part space between strand increases simultaneously, make some dye molecules can enter into these spaces, upper dyeing and weaving thing.So temperature of the present invention is chosen the 100-120 degree.
Under the certain condition of temperature, with the increase of tinction pressure, the K/S value of fabric constantly increases, and after pressure reaches 25MPa, continues to increase pressure, and is no longer obvious on the impact of the K/S value of fabric.In the 17-23MPa interval, the S of the section value of fabric is along with the increase of pressure constantly increases, and the trend of growth is comparatively mild, this may be owing to this interval pressure limit inner fluid to kevlar fabric expanded, penetrating power be not especially obvious reason.When pressure is in 23～25MPa interval, the increase tendency of K/S value is relatively more obvious, because in this pressure range, the density of CO2 is larger, and the solubility of dyestuff in fluid is also large, and the mass transfer power of fluid increases, cause that diffusivity increases, what is more important, that is eager to excel under the relatively low pressure of the penetrating power of the fluid in this pressure limit and bulking capacity is many, so have better Color in this interval.When at 25-27Mpa the time, the K/S value of DYED FABRICS is very little with the trend that changes that pressure increases, and this explanation pressure this moment has not been principal element for the increase of fabric K/S value.So the dyeing pressure of the aramid fiber that we select is 25Mpa.
Claims (3)
1. a supercritical carbon-dioxicle dyeing method is characterized in that, comprises the steps:
Step 1, with fabric wrapping on cloth bracket, and be suspended in the high pressure dyeing still, screw kettle cover and in the dyestuff still, add a certain amount of filter cake, screw kettle cover;
Step 2, on control panel, temperature, pressure are adjusted to desired value, opening condensing unit unlatching carbon dioxide steel cylinder exits in system, when steel cylinder pressure and system pressure balance, the opening plunger pump pressurizes to system, and the ON cycle pump makes system fluid be in recurrent state simultaneously;
Step 3, after pressure and temperature reaches predetermined value, dyeing timing;
Step 4, under temperature and pressure, after the balance dyeing stipulated time, open the pressure-reducing valve pressure release, carbon dioxide is recycled in the steel cylinder, when treating steel cylinder pressure and system pressure balance, with remaining CO2 emission through behind the separating still;
Step 5, system cools are opened dyeing caldron to room temperature, take out the fabric after dyeing.
2. supercritical carbon-dioxicle dyeing method according to claim 1 is characterized in that, described temperature is the 100-120 degree.
3. supercritical carbon-dioxicle dyeing method according to claim 1 is characterized in that, described pressure is 25Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012103110447A CN102877329A (en) | 2012-08-29 | 2012-08-29 | Supercritical carbon dioxide dyeing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103110447A CN102877329A (en) | 2012-08-29 | 2012-08-29 | Supercritical carbon dioxide dyeing method |
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| CN102877329A true CN102877329A (en) | 2013-01-16 |
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| CN2012103110447A Pending CN102877329A (en) | 2012-08-29 | 2012-08-29 | Supercritical carbon dioxide dyeing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862471A (en) * | 2016-05-18 | 2016-08-17 | 派得羽绒家纺南通有限公司 | Waterless dyeing method for textiles |
| WO2016134252A1 (en) * | 2015-02-20 | 2016-08-25 | Nike Innovate C.V. | Supercritical fluid material finishing |
| CN107548421A (en) * | 2015-02-20 | 2018-01-05 | 耐克创新有限合伙公司 | Supercritical fluid rolls or coiling material processing |
| US10519594B2 (en) | 2015-02-20 | 2019-12-31 | Nike, Inc. | Supercritical fluid material scouring |
| CN111676628A (en) * | 2020-06-10 | 2020-09-18 | 青岛即发集团股份有限公司 | Supercritical carbon dioxide anhydrous dyeing system and dyeing method |
| CN114921978A (en) * | 2022-06-08 | 2022-08-19 | 大连工业大学 | Para-aramid supercritical CO 2 Waterless dyeing method |
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| CN1309735A (en) * | 1998-06-03 | 2001-08-22 | 北卡罗来纳州立大学 | Improved method of dyeing hydrophobic textile fibers with colorant material in supercritical fluid carbon dioxide |
| CN1776086A (en) * | 2005-12-13 | 2006-05-24 | 东华大学 | Supercritical carbon-dioxicle dyeing method poly lacticacid fiber |
| CN101024922A (en) * | 2007-03-12 | 2007-08-29 | 美晨集团股份有限公司 | Production system adopting super-critical fluid to conduct continnous dyeing and production technology |
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2012
- 2012-08-29 CN CN2012103110447A patent/CN102877329A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309735A (en) * | 1998-06-03 | 2001-08-22 | 北卡罗来纳州立大学 | Improved method of dyeing hydrophobic textile fibers with colorant material in supercritical fluid carbon dioxide |
| CN1776086A (en) * | 2005-12-13 | 2006-05-24 | 东华大学 | Supercritical carbon-dioxicle dyeing method poly lacticacid fiber |
| CN101024922A (en) * | 2007-03-12 | 2007-08-29 | 美晨集团股份有限公司 | Production system adopting super-critical fluid to conduct continnous dyeing and production technology |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10731291B2 (en) | 2015-02-20 | 2020-08-04 | Nike, Inc. | Supercritical fluid rolled or spooled material finishing |
| WO2016134252A1 (en) * | 2015-02-20 | 2016-08-25 | Nike Innovate C.V. | Supercritical fluid material finishing |
| CN107548421A (en) * | 2015-02-20 | 2018-01-05 | 耐克创新有限合伙公司 | Supercritical fluid rolls or coiling material processing |
| CN107567514A (en) * | 2015-02-20 | 2018-01-09 | 耐克创新有限合伙公司 | Supercritical fluid material is processed |
| US10480123B2 (en) | 2015-02-20 | 2019-11-19 | Nike, Inc. | Supercritical fluid material finishing |
| US10519594B2 (en) | 2015-02-20 | 2019-12-31 | Nike, Inc. | Supercritical fluid material scouring |
| EP3722499A1 (en) * | 2015-02-20 | 2020-10-14 | NIKE Innovate C.V. | Supercritical fluid material finishing |
| CN107567514B (en) * | 2015-02-20 | 2021-06-04 | 耐克创新有限合伙公司 | Method for processing target material |
| US11377788B2 (en) | 2015-02-20 | 2022-07-05 | Nike, Inc. | Supercritical fluid material finishing |
| US11674262B2 (en) | 2015-02-20 | 2023-06-13 | Nike, Inc. | Supercritical fluid rolled or spooled material finishing |
| CN105862471A (en) * | 2016-05-18 | 2016-08-17 | 派得羽绒家纺南通有限公司 | Waterless dyeing method for textiles |
| CN111676628A (en) * | 2020-06-10 | 2020-09-18 | 青岛即发集团股份有限公司 | Supercritical carbon dioxide anhydrous dyeing system and dyeing method |
| CN114921978A (en) * | 2022-06-08 | 2022-08-19 | 大连工业大学 | Para-aramid supercritical CO 2 Waterless dyeing method |
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Application publication date: 20130116 |