CN105625014B - A kind of loose wool of not draining continues cylinder method for bleaching - Google Patents
A kind of loose wool of not draining continues cylinder method for bleaching Download PDFInfo
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- CN105625014B CN105625014B CN201610131111.5A CN201610131111A CN105625014B CN 105625014 B CN105625014 B CN 105625014B CN 201610131111 A CN201610131111 A CN 201610131111A CN 105625014 B CN105625014 B CN 105625014B
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Abstract
The present invention relates to a kind of loose wool of not draining to continue cylinder method for bleaching, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent does the new loose wool fiber circulation bleaching processing of next cylinder, and anhydrous discharge is processed in all bleachings.Advantage is：The whiteness after the bleaching of continuous cylinder under und rained condition is no color spot, tasteless up to more than 87, and regulation base amount can obtain different water imbibitions, the bleaching loose wool fiber of different water absorption rates.Using the efficient bleaching method of HTHP, the activation rate and permeability to hydrogen peroxide are improved using high-temperature and high-pressure conditions, can significantly shorten time, the dosage for improving whiteness, reducing alkaline agent and surfactant.It is more soft to continue the higher whiteness after the bleaching of cylinder method for bleaching, good hydrophilic property, feel using the loose wool of not draining, improves spinnability.
Description
Technical field
The invention belongs to textile printing and dyeing field, more particularly to a kind of loose wool of not draining to continue cylinder method for bleaching.
Background technology
At present, sewage discharge all be present in gossypin staple in bulk bleaching.Especially currently a popular low temperature pre-treatment bleaching
Technique, to reach under 70 degree or so of cryogenic conditions bleaching, it is necessary to the low-temperature activation agent of hydrogen peroxide, and will be in cryogenic conditions
It is issued to the clearances such as cotton fat under hot conditions, cotton wax, greasy dirt, it is necessary to larger amount of alkaline agent and surfactant are added,
Cause chemical assistant consumption big, aggravate sewage disposal burden.
Loose wool fiber pre-treatment temperature conventional at present is at 98 degree or so, and there is also bleaching time is longer, fiber strength
Decline greatly, and be extremely difficult to higher whiteness, the higher corresponding fiber strength of the whiteness reached declines bigger.Cotton fiber passes through
Drain sewage, then neutralized by washing, acid, excessively soft etc. process after bleaching, not only activity time length, waste water resource, Er Qiecun
In sewage discharge.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of loose wool of not draining to continue cylinder method for bleaching,
There is no sewage discharge not only, and save the time, save water resource, the investment for saving sewage disposal and operation cost, saving
Auxiliary agent, meanwhile, raising whiteness, enhancing hydrophily, feel are more soft, improve spinnability.Using the efficient bleaching side of HTHP
Formula, the activation rate and permeability to hydrogen peroxide are improved using high-temperature and high-pressure conditions, are significantly shortened the time, are improved whiteness, reduce alkali
Agent and the dosage of surfactant.Fiber strength is improved using ecological auxiliary agent, improves the utilization rate of hydrogen peroxide, while utilize ecology
Absorption of the auxiliary agent to impurity, salt etc., recycles bleaching liquid.
To achieve the above object, the present invention is achieved through the following technical solutions：
A kind of loose wool of not draining continues cylinder method for bleaching, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent
The new loose wool fiber circulation bleaching processing of next cylinder is done, all bleachings process anhydrous discharge, specifically include following steps：
1) bleaching is sealed in bleaching vessel, the bath raio of bleaching is 1：(5-20), add in bleaching vessel 0.5-2 g/l of piece alkali,
3-7 g/l of hydrogen peroxide, 1-3 g/l of ecological auxiliary agent, temperature are 105-130 degree, and bleaching soaking time is 5-30 minutes；
2) without cooling after bleaching, direct discharge opeing, secondary cylinder is directly discharged into, with the high-temperature bleaching liquid of recovery discharge, then weighed
Bleaching vessel newly is injected with high-temperature water pump, the bleaching for next cylinder is processed；
3) the loose wool fiber after bleaching passes through centrifugal dehydration, reclaims the water after centrifugal dehydration, is supplemented back in bleaching vessel；
4) the second new cylinder loose wool fiber is added in bleaching vessel, auxiliary agent is added, adds clear water to 1：(5-20) bleaching bath
Than；The auxiliary agent added is：0.3-1.5 g/l of piece alkali, 2-7 g/l of hydrogen peroxide, ecological auxiliary agent ECO 0.5-2 g/l；Class according to this
Push away, utilize the raffinate of a upper cylinder every time, then add clear water and auxiliary agent does the new loose wool fiber circulation bleaching of next cylinder.
Loose wool fiber after the step 1)~step 4) bleaching carries out softening processing, specifically includes following steps：
1) the bleaching loose wool fiber after centrifugal dehydration is processed, load normal pressure softening cylinder, added in cylinder is softened soft
Agent, carried out soft processing, bath raio 1：(5-20), add ecological 0-1 g/l of acidulant, and 2-7 grams of high temperature resistant hydrophilic softening agent/
Rise, temperature is 50-95 degree, and soaking time is 5-30 minutes；
2) not discharge opeing after softening, it is retained in the loose wool fiber softening processing for being used for next cylinder in softening cylinder；After softening
Loose wool fiber is sling to centrifugal dehydrator, is carried out centrifugal dehydration processing, the water after recovery centrifugal dehydration processing, is supplemented easing back
In cylinder；
3) in cylinder is softened after softening auxiliary agent, add clear water to 1：The bath raio of (5-20), the auxiliary agent of supplement are：Ecological acid
0.3-0.8 g/l of agent, 1.5-6 g/l of high temperature resistant hydrophilic softening agent；The rest may be inferred, utilizes the raffinate of a upper cylinder every time,
Clear water is added again and auxiliary agent does the new loose wool fiber cyclic softening processing of next cylinder, and all new loose wool fiber softenings process equal nothing
Water discharges；
4) after loose wool fiber carries out centrifugal dehydration processing, drying.
Loose wool fiber after the step 1)-step 4) bleaching carries out half drift processing：Continuous cylinder, which is bleached and passes through centrifugation, to be taken off
After water, directly dry, for follow-up dyeing process.
Described loose wool fiber is any one of colored loose wool, general cotton carding fiber, combed cotton.
Compared with prior art, the beneficial effects of the invention are as follows：
The whiteness after the bleaching of continuous cylinder under und rained condition is up to more than 87, no color spot, tasteless, absorbent time<2 seconds,
Regulation base amount can obtain different water imbibitions, the bleaching loose wool fiber of different water absorption rates.Using the efficient bleaching side of HTHP
Formula, the activation rate and permeability to hydrogen peroxide are improved using high-temperature and high-pressure conditions, can significantly shorten the time, improve whiteness, reduce
The dosage of alkaline agent and surfactant.Fiber strength is effectively improved using ecological auxiliary agent, improves the utilization rate of hydrogen peroxide, while profit
With absorption of the ecological auxiliary agent to impurity, salt etc., recycle bleaching liquid.On the premise of not draining, every time
Clear water and part of auxiliary are supplemented, for fiber bleached to loose wool.Cylinder method for bleaching is continued using the loose wool of not draining, not only without dirt
Water discharges, and saves the time, save water resource, the investment for saving sewage disposal and operation cost, save auxiliary agent, is a kind of
The Eco-friendly machining method of environmental protection.Continue the higher whiteness after the bleaching of cylinder method for bleaching, good hydrophilic property, feel using the loose wool of not draining
It is more soft, improve spinnability.
Embodiment
The present invention is described in detail below, it should be noted that the implementation of the present invention is not limited to following embodiment party
Formula.
The loose wool of not draining continues cylinder method for bleaching, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent is done down
The new loose wool fiber circulation bleaching processing of one cylinder, all bleachings process anhydrous discharge, specifically include following steps：
1) bleaching is sealed in bleaching vessel, the bath raio of bleaching is 1：(5-20), add in bleaching vessel 0.5-2 g/l of piece alkali,
3-7 g/l of hydrogen peroxide, ecological auxiliary agent ECO 1-3 g/l, temperature are 105-130 degree, and bleaching soaking time is 5-30 minutes；
2) without cooling after bleaching, direct discharge opeing, secondary cylinder is directly discharged into, with the high-temperature bleaching liquid of recovery discharge, then weighed
Bleaching vessel newly is injected with high-temperature water pump, the bleaching for next cylinder is processed；
3) the loose wool fiber after bleaching passes through centrifugal dehydration, reclaims the water after centrifugal dehydration, is supplemented back in bleaching vessel；
4) the second new cylinder loose wool fiber is added in bleaching vessel, auxiliary agent is added, adds clear water to 1：(5-20) bleaching bath
Than；The auxiliary agent added is：0.3-1.5 g/l of piece alkali, 2-7 g/l of hydrogen peroxide, ecological auxiliary agent ECO 0.5-2 g/l；Class according to this
Push away, utilize the raffinate of a upper cylinder every time, then add clear water and auxiliary agent does the new loose wool fiber circulation bleaching of next cylinder.
Loose wool fiber after the step 1)~step 4) bleaching carries out softening processing, specifically includes following steps：
A) the bleaching loose wool fiber after centrifugal dehydration is processed, load normal pressure softening cylinder, added in cylinder is softened soft
Agent, carried out soft processing, bath raio 1：(5-20), add ecological FA0-1 g/l of acidulant, high temperature resistant hydrophilic softening agent QM 2-
7 g/l, temperature is 50-95 degree, and soaking time is 5-30 minutes；
B) not discharge opeing after softening, it is retained in the loose wool fiber softening processing for being used for next cylinder in softening cylinder；After softening
Loose wool fiber is sling to centrifugal dehydrator, is carried out centrifugal dehydration processing, the water after recovery centrifugal dehydration processing, is supplemented easing back
In cylinder；
C) in cylinder is softened after softening auxiliary agent, add clear water to 1：The bath raio of (5-20), the auxiliary agent of supplement are：Ecological acid
FA0.3-0.8 g/l of agent, high temperature resistant hydrophilic softening agent QM 1.5-6 g/l；The rest may be inferred, utilizes a upper cylinder every time
Raffinate, then add clear water and auxiliary agent does the new loose wool fiber cyclic softening processing of next cylinder, all new loose wool fiber softenings add
The anhydrous discharge of work；
D) after loose wool fiber carries out centrifugal dehydration processing, drying.
Loose wool fiber after the step 1)-step 4) bleaching carries out half drift processing：Continuous cylinder, which is bleached and passes through centrifugation, to be taken off
After water, directly dry, for follow-up dyeing process.
Wherein, loose wool fiber is any one of colored loose wool, general cotton carding fiber, combed cotton.
Embodiment 1：
The loose wool of the not draining of combed cotton continues cylinder method for bleaching：
1) loose wool fiber is directly loadable into HTHP bleaching vessel, the bath raio of bleaching is 1：(5-20), are sequentially added into piece
1 g/l of alkali, 5 g/l of hydrogen peroxide, 2.5 g/l of ecological auxiliary agent.123 degree, which are warming up to, with 2 degrees/min is incubated 10 minutes, sealing drift
White cylinder forms high temperature and high pressure environment.Without cooling after bleaching, HTHP discharge opeing is directly used, is directly discharged into secondary cylinder.Recovery
The high-temperature bleaching liquid of discharge, then bleaching vessel is injected with high-temperature water pump again, the bleaching for next cylinder is processed.
2) the loose wool fiber after bleaching is processed by centrifugal dehydration, the water after recovery centrifugal dehydration processing, is supplemented back drift
In white cylinder.Using the raffinate of a upper cylinder, then water temperature at 90 degree or so, then adds clear water to 1 after being directly added into new loose wool fiber：
The bath raio of (5-20), supplement auxiliary agent：0.8 g/l of piece alkali, 5 g/l of hydrogen peroxide, 1.5 g/l of ecological auxiliary agent ECO.With 2 degree mins
Clock is warming up to 123 degree and is incubated 10 minutes.Without cooling after the bleaching of second cylinder, HTHP discharge opeing, recovery discharge are directly used
High-temperature bleaching liquid, then again with high-temperature water pump inject bleaching vessel, for the 3rd cylinder bleaching process.
The rest may be inferred, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent makees the new loose wool fiber of next cylinder
Circulation bleaching, all anhydrous discharges of bleaching.
3) the first cylinder bleaching loose wool fiber after centrifugal dehydration is processed, then cylinder is filled again, load normal pressure softening cylinder, add
Enter softening agent, carry out soft processing.Bath raio is 1：(5-20), using residual temperature of the loose wool after fiber bleached, it is not required to heat up, temperature
It is 20 minutes to spend for 50-75 degree, soaking time.Add ecological FA0.6 g/l of acidulant, 4 grams of high temperature resistant hydrophilic softening agent QM/
Rise.
4) only the loose wool fiber after softening is sling to centrifugal dehydrator after softening processing, not discharge opeing after softening, directly used
Processed in the softening of ensuing second cylinder loose wool fiber.
5) the loose wool fiber after processing will be softened to process by centrifugal dehydration again, the water after recovery centrifugal dehydration processing, then
Supplement in easing back cylinder, while after softening auxiliary agent, add clear water to bath raio 1：(5-20), for the soft of the second cylinder loose wool fiber
Change processing.The softening auxiliary agent of supplement is：Ecological FA0.5 g/l of acidulant, 3.5 g/l of high temperature resistant hydrophilic softening agent QM.
The rest may be inferred, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent makees the new loose wool fiber of next cylinder
Cyclic softening is processed, and all new loose wool fiber softenings process anhydrous discharge.
6) directly drying turns into finished product to the loose wool fiber after super-soft processing after centrifugal dehydration.
Embodiment 2：
The loose wool of the not draining of combed cotton continues cylinder method for bleaching：
1) loose wool fiber is directly loadable into HTHP bleaching vessel, the bath raio of bleaching is 1：(5-20), are sequentially added into piece
0.7 g/l of alkali, 4 g/l of hydrogen peroxide, 2 g/l of ecological auxiliary agent ECO.125 degree, which are warming up to, with 3 degrees/min is incubated 15 minutes, it is close
Seal bleaching vessel and form high temperature and high pressure environment.Without cooling after bleaching, HTHP discharge opeing is directly used, is directly discharged into secondary cylinder.
The high-temperature bleaching liquid of discharge is reclaimed, then injects bleaching vessel with high-temperature water pump again, the bleaching for next cylinder is processed.
2) the loose wool fiber after bleaching is processed by centrifugal dehydration, the water after recovery centrifugal dehydration processing, is supplemented back drift
In white cylinder.Using the raffinate of a upper cylinder, then water temperature at 90 degree or so, then adds clear water to 1 after being directly added into new loose wool fiber：
The bath raio of (5-20).The auxiliary agent of supplement is：0.6 g/l of piece alkali, 4 g/l of hydrogen peroxide, 1.5 g/l of ecological auxiliary agent ECO.With 3
Degree/min it is warming up to 125 degree and is incubated 15 minutes.Without cooling after the bleaching of second cylinder, HTHP discharge opeing is directly used, is reclaimed
The high-temperature bleaching liquid of discharge, then bleaching vessel is injected with high-temperature water pump again, the bleaching for the 3rd cylinder is processed.
The rest may be inferred, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent makees the new loose wool fiber of next cylinder
Circulation bleaching, all anhydrous discharges of bleaching.
3) the first cylinder bleaching loose wool fiber after centrifugal dehydration is processed, then cylinder is filled again, load normal pressure softening cylinder.Add
Enter softening agent, carry out softening processing.Bath raio is 1：(5-20), using residual temperature of the loose wool after fiber bleached, it is not required to heat up, temperature
It is 20 minutes to spend for 50-75 degree, soaking time.Add ecological FA0.5 g/l of acidulant, high temperature resistant hydrophilic softening agent QM 3.5
G/l.
4) only the loose wool fiber after softening is sling to centrifugal dehydrator after softening processing, not discharge opeing after softening, directly used
Processed in the softening of ensuing second cylinder loose wool fiber.The loose wool fiber after processing will be softened to process by centrifugal dehydration again,
The water after centrifugal dehydration processing is reclaimed, is supplemented in easing back cylinder, while after softening auxiliary agent, add clear water to 1：(5-20)
Bath raio, the softening for the second cylinder loose wool fiber are processed.The auxiliary agent of supplement is：Ecological FA0.5 g/l of acidulant, high temperature resistant parent
3 g/l of water softening agent QM.
The rest may be inferred, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent makees the new loose wool fiber of next cylinder
Cyclic softening is processed, and all new loose wool fiber softenings process anhydrous discharge.
5) directly drying turns into finished product to the loose wool fiber after super-soft processing after centrifugal dehydration.
Embodiment 3：
The loose wool of the not draining of combed cotton continues the drift processing of cylinder method for bleaching-half：
1) loose wool fiber is directly loadable into HTHP bleaching vessel, and the bath raio of bleaching is 1：(8-18), are sequentially added into piece alkali
0.6 g/l, 5 g/l of hydrogen peroxide, 1.5 g/l of ecological auxiliary agent ECO.125 degree, which are warming up to, with 3 degrees/min is incubated 10 minutes, it is close
Seal bleaching vessel and form high temperature and high pressure environment.Without cooling after bleaching, HTHP discharge opeing is directly used, is directly discharged into secondary cylinder.
The high-temperature bleaching liquid of discharge is reclaimed, then injects bleaching vessel with high-temperature water pump again, the bleaching for next cylinder is processed.
2) the loose wool fiber after bleaching is processed by centrifugal dehydration, the water after recovery centrifugal dehydration processing, is supplemented back drift
In white cylinder.Using the raffinate of a upper cylinder, then water temperature at 90 degree or so, then adds clear water to 1 after being directly added into new loose wool fiber：
The bath raio of (8-18).Auxiliary agent is supplemented in bleaching vessel：0.5 g/l of piece alkali, 5 g/l of hydrogen peroxide, 1 g/l of ecological auxiliary agent ECO.
125 degree, which are warming up to, with 3 degrees/min is incubated 10 minutes.Without cooling after the bleaching of second cylinder, HTHP discharge opeing is directly used,
The high-temperature bleaching liquid of discharge is reclaimed, then injects bleaching vessel with high-temperature water pump again, the bleaching for the 3rd cylinder is processed.
The rest may be inferred, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent makees the new loose wool fiber of next cylinder
Circulation bleaching, all anhydrous discharges of bleaching.
3) the first cylinder bleaching loose wool fiber after centrifugal dehydration is processed, then cylinder is filled again, load normal pressure cylinder.Add soft
Soft dose, carry out softening processing.Bath raio is 1：(8-18), using residual temperature of the loose wool after fiber bleached, it is not required to heat up, temperature is
50-75 degree, soaking time are 20 minutes.Add ecological FA0.3 g/l of acidulant.
4) only the loose wool fiber after softening is sling to centrifugal dehydrator after softening processing, not discharge opeing after softening, directly used
Processed in the softening of ensuing second cylinder loose wool fiber.
5) the loose wool fiber after processing will be softened to process by centrifugal dehydration again, the water after recovery centrifugal dehydration processing, then
Supplement in easing back cylinder, while after softening auxiliary agent, add clear water to 1：The bath raio of (8-18), for the second cylinder loose wool fiber
Softening processing.The auxiliary agent of supplement is：Ecological FA0.3 g/l of acidulant.
The rest may be inferred, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent makees the new loose wool fiber of next cylinder
Cyclic softening is processed, and all new loose wool fiber softenings process anhydrous discharge.
6) directly drying turns into half drift product to the loose wool fiber after super-soft processing after centrifugal dehydration, for follow-up dye
Color is processed.
Embodiment 4：
The loose wool of the not draining of general cotton carding continues cylinder method for bleaching：
1) general cotton carding is directly loadable into HTHP bleaching vessel, the bath raio of bleaching is 1：(5-20), are sequentially added into piece alkali
1.5 g/l, 6.5 g/l of hydrogen peroxide, 3 g/l of ecological auxiliary agent ECO.125 degree, which are warming up to, with 2 degrees/min is incubated 20 minutes.Drift
Without cooling after white, HTHP discharge opeing is directly used, is directly discharged into secondary cylinder.The high-temperature bleaching liquid of discharge is reclaimed, then again
Bleaching vessel is injected with high-temperature water pump, the bleaching for next cylinder is processed.
2) the loose wool fiber after bleaching is processed by centrifugal dehydration, the water after recovery centrifugal dehydration processing, is supplemented back drift
In white cylinder.Using the raffinate of a upper cylinder, then water temperature at 90 degree or so, then adds clear water to 1 after being directly added into new loose wool fiber：
The bath raio of (5-20).Auxiliary agent is supplemented in bleaching vessel：1.2 g/l of piece alkali, 5.5 g/l of hydrogen peroxide, ECO2 grams of ecological auxiliary agent/
Rise.125 degree, which are warming up to, with 2 degrees/min is incubated 20 minutes.Without cooling after the bleaching of second cylinder, directly arranged using HTHP
Liquid, the high-temperature bleaching liquid of discharge is reclaimed, then inject bleaching vessel with high-temperature water pump again, the bleaching for the 3rd cylinder is processed.
The rest may be inferred, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent makees the new loose wool fiber of next cylinder
Circulation bleaching, all anhydrous discharges of bleaching.
3) the first cylinder bleaching loose wool fiber after centrifugal dehydration is processed, then cylinder is filled again, load normal pressure cylinder.Add soft
Soft dose, carried out soft processing.Bath raio is 1：(5-20), using residual temperature of the loose wool after fiber bleached, it is not required to heat up, temperature is
50-75 degree, soaking time are 20 minutes.Add ecological FA0.6 g/l of acidulant, 5 g/l of high temperature resistant hydrophilic softening agent QM.
4) only the loose wool fiber after softening is sling to centrifugal dehydrator after softening processing, not discharge opeing after softening, directly used
Processed in the softening of ensuing second cylinder loose wool fiber.
5) the loose wool fiber after processing will be softened to process by centrifugal dehydration again, the water after recovery centrifugal dehydration processing, then
Supplement in easing back cylinder, while after softening auxiliary agent, add clear water to 1：The bath raio of (5-20), for the second cylinder loose wool fiber
Softening processing.The softening auxiliary agent of supplement is：Ecological FA0.5 g/l of acidulant, 4 g/l of high temperature resistant hydrophilic softening agent QM.
The rest may be inferred, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent makees the new loose wool fiber of next cylinder
Cyclic softening is processed, and all new loose wool fiber softenings process anhydrous discharge.
6) directly drying turns into finished product to the loose wool fiber after super-soft processing after centrifugal dehydration.
Embodiment 5：
The loose wool of the not draining of loose wool flower continues cylinder method for bleaching：
1) loose wool fiber is directly loadable into HTHP bleaching vessel, the bath raio of bleaching is 1：(9-19), are sequentially added into piece
1.2 g/l of alkali, 6 g/l of hydrogen peroxide, 2.8 g/l of ecological auxiliary agent ECO.126 degree, which are warming up to, with 3 degrees/min is incubated 10 minutes,
Seal bleaching vessel and form high temperature and high pressure environment.Without cooling after bleaching, HTHP discharge opeing is directly used, is directly discharged into pair
Cylinder.The high-temperature bleaching liquid of discharge is reclaimed, then injects bleaching vessel with high-temperature water pump again, the bleaching for next cylinder is processed.
2) the loose wool fiber after bleaching is processed by centrifugal dehydration, the water after recovery centrifugal dehydration processing, is supplemented back drift
In white cylinder.Using the raffinate of a upper cylinder, then water temperature at 90 degree or so, then adds clear water to 1 after being directly added into new loose wool fiber：
The bath raio of (9-19), supplement auxiliary agent：0.9 g/l of piece alkali, 4 g/l of hydrogen peroxide, 1.6 g/l of ecological auxiliary agent ECO.With 3 degree mins
Clock is warming up to 126 degree and is incubated 10 minutes.Without cooling after the bleaching of second cylinder, HTHP discharge opeing, recovery discharge are directly used
High-temperature bleaching liquid, then again with high-temperature water pump inject bleaching vessel, for the 3rd cylinder bleaching process.
The rest may be inferred, utilizes the raffinate of a upper cylinder every time, then adds clear water and auxiliary agent makees the new loose wool fiber of next cylinder
Circulation bleaching, all anhydrous discharges of bleaching.
4) the loose wool fiber after bleaching directly is dried, for follow-up dyeing process after centrifugal dehydration.
Ecological auxiliary agent ECO, ecological acidulant FA, high temperature resistant hydrophilic softening agent QM employed in above-mentioned all embodiments is equal
It is to be produced by Yi Xin new high-tech materials Co., Ltd of Beizhen City (www.yixinadvance.com).
The loose wool fiber of the present invention continues cylinder method for bleaching, the whiteness after the bleaching of continuous cylinder under und rained condition up to 87 with
On, no color spot, tasteless, absorbent time<2 seconds, it is fine that regulation base amount can obtain different water imbibitions, the bleaching loose wool of different water absorption rates
Dimension.The dosage change of alkaline agent does not influence the whiteness of bleached fiber within the specific limits.
The loose wool fiber of the present invention continues cylinder method for bleaching, is also applied for after alkaline agent, dioxygen water consumption is improved to flax, greatly
The bleaching processing of the fibers such as fiber crops, jute, super imitative cotton.
Claims (3)
1. a kind of loose wool of not draining continues cylinder method for bleaching, it is characterised in that utilizes the raffinate of a upper cylinder every time, then adds clear
Water and auxiliary agent do the new loose wool fiber circulation bleaching processing of next cylinder, and all bleachings are processed anhydrous discharge, specifically included following
Step：
1）Bleaching is sealed in bleaching vessel, the bath raio of bleaching is 1：（5 – 20）, 0.5-2 g/l of piece alkali, double is added in bleaching vessel
3-7 g/l of oxygen water, ecological auxiliary agent ECO 1-3 g/l, temperature are 105-130 degree, and bleaching soaking time is 5-30 minutes；
2）Without cooling after bleaching, direct discharge opeing, secondary cylinder is directly discharged into, with the high-temperature bleaching liquid of recovery discharge, then used again
High-temperature water pump injects bleaching vessel, and the bleaching for next cylinder is processed；
3）Loose wool fiber after bleaching passes through centrifugal dehydration, reclaims the water after centrifugal dehydration, is supplemented back in bleaching vessel；
4）The second new cylinder loose wool fiber is added in bleaching vessel, auxiliary agent is added, adds clear water to 1：（5 – 20）Bleaching bath ratio；
The auxiliary agent added is：0.3-1.5 g/l of piece alkali, 2-7 g/l of hydrogen peroxide, ecological auxiliary agent ECO 0.5-2 g/l；The rest may be inferred,
The raffinate of a upper cylinder is utilized every time, then adds clear water and auxiliary agent does the new loose wool fiber circulation bleaching of next cylinder；
Through step 1）~step 4）Loose wool fiber after bleaching carries out softening processing, specifically includes following steps：
1）Bleaching loose wool fiber after centrifugal dehydration is processed, load normal pressure softening cylinder, add softening agent in cylinder is softened, enter
Went soft processing, bath raio 1：（5 – 20）, ecological acidulant FA 0-1 g/l are added, and do not include 0, high temperature resistant is hydrophilic soft
Soft dose of QM 2-7 g/l, temperature are 50-95 degree, and soaking time is 5-30 minutes；
2）Not discharge opeing after softening, it is retained in the loose wool fiber softening processing for being used for next cylinder in softening cylinder；By the loose wool after softening
Fiber is sling to centrifugal dehydrator, is carried out centrifugal dehydration processing, the water after recovery centrifugal dehydration processing, is supplemented easing back cylinder
It is interior；
3）In cylinder is softened after softening auxiliary agent, add clear water to 1：（5 – 20）Bath raio, the auxiliary agent of supplement is：Ecology acidifying
Agent FA 0.3-0.8 g/l, high temperature resistant hydrophilic softening agent QM 1.5-6 g/l；The rest may be inferred, utilizes the residual of a upper cylinder every time
Liquid, then add clear water and auxiliary agent does the new loose wool fiber cyclic softening processing of next cylinder, all new loose wool fiber softenings processing
Anhydrous discharge；
4）After loose wool fiber carries out centrifugal dehydration processing, drying.
2. a kind of loose wool of not draining according to claim 1 continues cylinder method for bleaching, it is characterised in that described loose wool is fine
Dimension is loose wool flower.
3. a kind of loose wool of not draining according to claim 1 continues cylinder method for bleaching, it is characterised in that described loose wool is fine
Tie up for general cotton carding fiber, combing cotton fibre any one.
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| CN201610131111.5A CN105625014B (en) | 2016-03-09 | 2016-03-09 | A kind of loose wool of not draining continues cylinder method for bleaching |
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| CN108360197A (en) * | 2018-03-16 | 2018-08-03 | 哈密绿天使纤维科技有限公司 | Raw cotton processing system |
| CN110184803A (en) * | 2019-05-28 | 2019-08-30 | 芜湖富春染织股份有限公司 | A kind of yarn boiling and bleaching technique |
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| CN104195848A (en) * | 2014-08-25 | 2014-12-10 | 际华三五四三针织服饰有限公司 | Continuous tone-on-tone dyeing method for knitted fabric by adopting active dye |
| CN105113162A (en) * | 2015-09-15 | 2015-12-02 | 江南大学 | Energy-saving and emission-reducing fiber product vat-refilling dyeing system and method |
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| CN104195848A (en) * | 2014-08-25 | 2014-12-10 | 际华三五四三针织服饰有限公司 | Continuous tone-on-tone dyeing method for knitted fabric by adopting active dye |
| CN105113162A (en) * | 2015-09-15 | 2015-12-02 | 江南大学 | Energy-saving and emission-reducing fiber product vat-refilling dyeing system and method |
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