CN106592284A - Reduction clearing method used for synthetic fiber - Google Patents
Reduction clearing method used for synthetic fiber Download PDFInfo
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- CN106592284A CN106592284A CN201611044143.8A CN201611044143A CN106592284A CN 106592284 A CN106592284 A CN 106592284A CN 201611044143 A CN201611044143 A CN 201611044143A CN 106592284 A CN106592284 A CN 106592284A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
- D06P5/06—After-treatment with organic compounds containing nitrogen
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
- D06P3/54—Polyesters using dispersed dyestuffs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
- D06P5/08—After-treatment with organic compounds macromolecular
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/10—After-treatment with compounds containing metal
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
The invention relates to a reduction clearing method used for synthetic fiber. The reduction clearing method comprises the steps of adding dyed synthetic fiber into reductive cleaning liquid, raising the temperature to 70-80 DEG C, maintaining the temperature and conducting reaction for 10-20 min, discharging water, afterwards, adding water, raising the temperature to 70-80 DEG C, maintaining the temperature and conducting reaction for 5-15 min, and accomplishing the reduction clearing. According to the reduction clearing method used for synthetic fiber, through the coordinative use of a reductive cleaning agent and sodium carbonate, under the condition that the influence on color shade of a shell fabric is small, color fastness of the shell fabric is improved; in addition, the reduction clearing method is simple and easy to control.
Description
Technical field
The present invention relates to a kind of process for reductive post-cleaning for synthetic fibers.
Background technology
After terylene and its blend fabric disperse dyeing, in order to lift colorfastness, it usually needs reduced
Cleaning.Reduction cleaner relatively conventional at present is caustic soda and sodium hydrosulfite, and its principle will be disperseed using the reproducibility of sodium hydrosulfite
Dyestuff color development system is destroyed, and so as to reach removal loose colour, lifts the purpose of color fastness.
Originally, reduction cleaning is carried out to terylene with alkaline sodium hydrosulfite and possesses greater advantage, but Environmental Protection Situation it is increasingly serious,
Under the background that production safety management is increasingly strict and printing and dyeing enterprise profit increasingly declines, also manifest rapidly the drawbacks of sodium hydrosulfite.
Sodium hydrosulfite is primarily present when in use following shortcoming：
(1) sodium hydrosulfite understands spontaneous combustion, understands automatic heating especially after moisture absorption and burns, and the warehouse for depositing sodium hydrosulfite occurs repeatedly
Fire.
(2) sodium hydrosulfite releases when in use, easily sulfur dioxide gas, causes workshop condition to pollute, and damages workers ' health,
At the same time severe working environment improves the recruitment cost of enterprise.
(3) sodium hydrosulfite is unstable at high temperature, optimum cleaning temperature no more than 80 DEG C, otherwise can decompose rapidly and
Failure.
(5) storage stability of sodium hydrosulfite is very poor, and exposing under cryogenic conditions will decompose in atmosphere, cause active ingredient
Constantly decline.
(6) according to standard GB/T 6844-86《Dangerous cargo is classified and name of an article numbering》Regulation, sodium hydrosulfite belongs to one-level
Dangerous when wet, therefore it has higher risk in transit and cost of transportation.
How to solve the above problems, make terylene reduction cleaning technique become environmental protection, efficiently, be vast dyeing and finishing worker urgently
Research and the problem for solving.
The content of the invention
The technical problem to be solved is to provide the use that a kind of coloured light on fabric affects little and color fastness to improve
In the process for reductive post-cleaning of synthetic fibers.
To solve above technical problem, the present invention is adopted the following technical scheme that：
It is an object of the present invention to provide a kind of process for reductive post-cleaning for synthetic fibers, fine by the synthesis after dyeing
Dimension is added in reduction cleaning liquid, is warming up to 70～80 DEG C of 10～20min of insulation reaction, and water is added after draining, is warming up to 70～80
DEG C 5～15min of insulation reaction, completes reduction clearing step；Wherein, described reduction cleaning liquid includes the reduction of 1～1.5g/L
The soda ash of cleaning agent, 1.5～2.5g/L；By weight, the composition of raw materials of described reduction cleaner is as follows：
Wherein, described R1Be selected from hydrogen orR4It selected from carbon number is straight or branched between 1～6 to be
Alkyl, R5Be selected from hydroxyl, sulfydryl, phenylol, amide groups, amino, carboxyl,In it is arbitrary
Kind；
R2、R3It independently is selected from the alkyl that carbon number is straight or branched between 0～5.
Preferably, by weight, the composition of raw materials of described reduction cleaner is as follows：
It is further preferred that described R1Be selected fromR4It selected from carbon number is straight chain alkane between 1～4 to be
Base, R5Be selected from amino, carboxyl,In any one.
It is further preferred that described R2、R3It is alkyl between 0～2 independently to be selected from carbon number.
It is further preferred that described mol ratio of metal acetate is appointing in magnesium acetate, zinc acetate, calcium acetate, tin acetate
It is a kind of.
It is further preferred that the molecular weight of described polyethylene glycol is 400～4000.
It is further preferred that the preparation method of described reduction cleaner is：Will be describedIt is described
'sWith it is described30～60min is reacted at 20～40 DEG C, institute is subsequently adding
The sodium borohydride stated, continues to react 30～60min, is subsequently adding described dimethyl terephthalate (DMT) and/or described isophthalic
It is dicarboxylic acid dimethyl ester, described Sodium Dimethyl Isophthalate-5-sulfonate, described polyethylene glycol, described to methylbenzene sulphur
Sour and described mol ratio of metal acetate, is warming up to 150～185 DEG C of 180～250min of holding, is continuously heating to 220～230 DEG C of holdings
60～90min, is then -0.08～-0.1MP in vacuum, and temperature is 230～280 DEG C of 120～180min of insulation, is aggregated into
Block copolymer, blowing after being cooled to 100～120 DEG C obtains final product the reduction cleaner.
It is further preferable that the number-average molecular weight of described block copolymer is 10000～18000.
Preferably, described synthetic fibers are terylene.
Preferably, described reduction cleaning liquid includes reduction cleaner, the soda ash of 1.9～2.1g/L of 1～1.1g/L.
The beneficial effects of the present invention is:
The present invention is by using cooperatively reduction cleaner and soda ash, the less situation of coloured light impact expected over there
Under, the color fastness of fabric is improve, and the process for reductive post-cleaning of the present invention is simple and easy to control.
Specific embodiment
With reference to specific embodiment, the present invention is further elaborated.
Embodiment 1:Reduction cleaner
At 30 DEG C or so, by lysine：293.38g, glyoxal：58.04g, ethylene glycol：700g adds reactor reaction
After 30min, sodium borohydride is added：37.83g, continues to react 30min.It is subsequently adding dimethyl terephthalate (DMT)：194g,
Rutgers -5- sodium sulfonates：45g, molecular weight are 1000 polyethylene glycol：400g, p-methyl benzenesulfonic acid：1g, acetic acid
Magnesium：2g, is warming up to 150 DEG C and is kept for 250 minutes, is continuously heating to 220 DEG C and is kept for 90 minutes, is then -0.08MP in vacuum,
Temperature is 280 DEG C of insulation 120min, aggregates into the block copolymer that number-average molecular weight is 18000, blowing after being cooled to 120 DEG C,
Obtain final product the product.
Embodiment 2:Reduction cleaner
At 30 DEG C or so, by lysine：350g, glyoxal：45g, ethylene glycol：750g add reactor reaction 50min with
Afterwards, sodium borohydride is added：45g, continues to react 50min.It is subsequently adding dimethyl terephthalate (DMT)：220g, M-phthalic acid two
Methyl esters -5- sodium sulfonates：55g, molecular weight are 400 polyethylene glycol：350g, p-methyl benzenesulfonic acid：1g, zinc acetate：2g, is warming up to
185 DEG C are kept for 180 minutes, are continuously heating to 220 DEG C and are kept for 90 minutes, are then -0.1MP in vacuum, and temperature is 230 DEG C of guarantors
Warm 120min, aggregates into the block copolymer that number-average molecular weight is 15000, and blowing after being cooled to 100 DEG C obtains final product the product.
Embodiment 3：Reduction cleaner
At 30 DEG C or so, by lysine：250g, glyoxal：60g, ethylene glycol：650g add reactor react 1 hour with
Afterwards, sodium borohydride is added：30g, continues to react 1 hour.It is subsequently adding DMIP：180g, M-phthalic acid two
Methyl esters -5- sodium sulfonates：50g, molecular weight are 4000 polyethylene glycol：450g, p-methyl benzenesulfonic acid：1g, calcium acetate：2g, heats up
Kept for 100 minutes to 170 DEG C, be continuously heating to 225 DEG C and kept for 80 minutes, be then -0.09MP in vacuum, temperature is 250
DEG C insulation 120min, aggregate into the block copolymer that number-average molecular weight is 17000, blowing after being cooled to 100 DEG C obtains final product the product
Product.
Embodiment 4：Reduction cleaner
At 30 DEG C or so, by arginine：293.38g, glyoxal：58.04g, ethylene glycol：700g adds reactor reaction
After 30min, sodium borohydride is added：37.83g, continues to react 30min.It is subsequently adding dimethyl terephthalate (DMT)：194g,
Rutgers -5- sodium sulfonates：60g, molecular weight are 800 polyethylene glycol：400g, p-methyl benzenesulfonic acid：1g, acetic acid
Magnesium：2g, is warming up to 150 DEG C and is kept for 250 minutes, is continuously heating to 220 DEG C and is kept for 90 minutes, is then -0.08MP in vacuum,
Temperature is 280 DEG C of insulation 120min, aggregates into number-average molecular weight for 18000 block copolymers, blowing after being cooled to 120 DEG C, i.e.,
Obtain the product.
Embodiment 5：Reduction cleaner
At 30 DEG C or so, by histidine：293.38g, glyoxal：58.04g, ethylene glycol：700g adds reactor reaction
After 30min, sodium borohydride is added：37.83g, continues to react 30min.It is subsequently adding dimethyl terephthalate (DMT)：194g,
Rutgers -5- sodium sulfonates：40g, molecular weight are 800 polyethylene glycol：400g, p-methyl benzenesulfonic acid：1g, acetic acid
Magnesium：2g, is warming up to 150 DEG C and is kept for 250 minutes, is continuously heating to 220 DEG C and is kept for 90 minutes, is then -0.08MP in vacuum,
Temperature is 280 DEG C of insulation 120min, aggregates into the block copolymer that number-average molecular weight is 18000, blowing after being cooled to 120 DEG C,
Obtain final product the product.
Embodiment 6：Reduction cleaner
At 30 DEG C or so, by glycine：293.38g, glyoxal：58.04g, ethylene glycol：700g adds reactor reaction
After 30min, sodium borohydride is added：37.83g, continues to react 30min.It is subsequently adding dimethyl terephthalate (DMT)：194g,
Rutgers -5- sodium sulfonates：35g, molecular weight are 800 polyethylene glycol：400g, p-methyl benzenesulfonic acid：1g, acetic acid
Magnesium：2g, is warming up to 150 DEG C and is kept for 250 minutes, is continuously heating to 220 DEG C and is kept for 90 minutes, is then -0.08MP in vacuum,
Temperature is 280 DEG C of insulation 120min, aggregates into number-average molecular weight for 18000 block copolymers, blowing after being cooled to 120 DEG C, i.e.,
Obtain the product.
Embodiment 7：Reduction cleaner
At 30 DEG C or so, by lysine：293.38g, butanedial：58.04g, propane diols：700g adds reactor reaction
After 30min, sodium borohydride is added：37.83g, continues to react 30min.It is subsequently adding dimethyl terephthalate (DMT)：194g,
Rutgers -5- sodium sulfonates：65g, molecular weight are 800 polyethylene glycol：400g, p-methyl benzenesulfonic acid：1g, acetic acid
Magnesium：2g, is warming up to 150 DEG C and is kept for 250 minutes, is continuously heating to 220 DEG C and is kept for 90 minutes, is then -0.08MP in vacuum,
Temperature is 280 DEG C of insulation 120min, aggregates into the block copolymer that number-average molecular weight is 18000, blowing after being cooled to 120 DEG C,
Obtain final product the product.
Comparative example 1：Reduction cleaner
At 30 DEG C or so, by lysine：150g, glyoxal：70g, ethylene glycol：900g add reactor react 1 hour with
Afterwards, sodium borohydride is added：50g, continues to react 1 hour.It is subsequently adding dimethyl terephthalate (DMT)：100g, M-phthalic acid two
Methyl esters -5- sodium sulfonates：70g, molecular weight are 1000 polyethylene glycol：200g, p-methyl benzenesulfonic acid：1g, calcium acetate：2g, heats up
Kept for 100 minutes to 170 DEG C, be continuously heating to 225 DEG C and kept for 80 minutes, be then -0.09MP in vacuum, temperature is 250
DEG C insulation 120min, aggregate into the block copolymer that number-average molecular weight is 17000, blowing after being cooled to 100 DEG C obtains final product the product
Product.
Comparative example 2：Reduction cleaner
At 30 DEG C or so, by alanine：293.38g, glyoxal：58.04g, ethylene glycol：700g adds reactor reaction
After 30min, sodium borohydride is added：37.83g, continues to react 30min.It is subsequently adding dimethyl terephthalate (DMT)：194g,
Rutgers -5- sodium sulfonates：30g, molecular weight are 4000 polyethylene glycol：400g, p-methyl benzenesulfonic acid：1g, acetic acid
Magnesium：2g, is warming up to 150 DEG C and is kept for 250 minutes, is continuously heating to 220 DEG C and is kept for 90 minutes, is then -0.08MP in vacuum,
Temperature is 280 DEG C of insulation 120min, aggregates into the block copolymer that number-average molecular weight is 18000, blowing after being cooled to 120 DEG C,
Obtain final product the product.
Embodiment 8：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 75 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 75 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 1 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Embodiment 9：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 80 DEG C of insulation reactions 10min, and water is added after draining, is warming up to 80 DEG C of insulation reactions
5min, completes reduction clearing step；Reduction cleaner obtained in the embodiment 1 of wherein, described reduction cleaning liquid including 1g/L,
The soda ash of 2g/L.
Embodiment 10：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 70 DEG C of insulation reactions 20min, and water is added after draining, is warming up to 70 DEG C of insulation reactions
15min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 1 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Embodiment 11：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 75 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 75 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 1 of described reduction cleaning liquid including 1.3g/L
Agent, the soda ash of 2.5g/L.
Embodiment 12：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 75 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 75 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 1 of described reduction cleaning liquid including 1.5g/L
Agent, the soda ash of 1.5g/L.
Embodiment 13：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 75 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 75 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 2 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Embodiment 14：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 75 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 75 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 3 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Embodiment 15：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 75 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 75 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 4 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Embodiment 16：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 75 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 75 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 5 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Embodiment 17：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 75 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 75 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 6 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Embodiment 18：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 75 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 75 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 7 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Comparative example 3：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 85 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 85 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 1 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Comparative example 4：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 65 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 65 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 1 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Comparative example 5：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 85 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 85 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 1 of described reduction cleaning liquid including 2g/L
Agent, the soda ash of 2g/L.
Comparative example 6：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 85 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 85 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 1 of described reduction cleaning liquid including 0.8g/L
Agent, the soda ash of 2g/L.
Comparative example 7：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 85 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 85 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 1 of described reduction cleaning liquid including 1g/L
Agent.
Comparative example 8：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 85 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 85 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the comparative example 1 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Comparative example 9：Process for reductive post-cleaning
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 85 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 85 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the comparative example 2 of described reduction cleaning liquid including 1g/L
Agent, the soda ash of 2g/L.
Comparative example 10
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 85 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 85 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 1 of described reduction cleaning liquid including 1g/L
Agent, the caustic soda of 2g/L.
Comparative example 11
Terylene is dyeed using dispersion is black, colouring method is dyeed using conventional method, the synthesis after dyeing is fine
Dimension is added in reduction cleaning liquid, is warming up to 85 DEG C of insulation reactions 15min, and water is added after draining, is warming up to 85 DEG C of insulation reactions
10min, completes reduction clearing step；Wherein, reduction cleaning obtained in the embodiment 1 of described reduction cleaning liquid including 1g/L
Agent, the commercial sodium hydrosulfite of 2g/L.
Comparative example 12
Commercial sodium hydrosulfite is added to carry out reduction cleaning to the terylene after dyeing as reduction cleaner using conventional caustic soda, respectively
The consumption of reduction cleaner is 2g/L, wherein, caustic soda and sodium hydrosulfite add respectively 2g/L, and process for reductive post-cleaning adopts conventional method
Carry out.
Impact of the process for reductive post-cleaning of embodiment 8 to 18 and comparative example 3 to 12 to fabric coloured light, crock fastness, it is stained with
Color fastness, washing fastness are referring to table 1.
Table 1
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.It is all according to the present invention
Equivalence changes or modification that Spirit Essence is made, all should be included within the scope of the present invention.
Claims (10)
1. a kind of process for reductive post-cleaning for synthetic fibers, it is characterised in that：Add reduction clear synthetic fibers after dyeing
In washing lotion, be warming up to 70～80 DEG C of 10～20min of insulation reaction, water added after draining, be warming up to 70～80 DEG C of insulation reactions 5～
15min, completes reduction clearing step；Wherein, the reduction cleaner of described reduction cleaning liquid including 1～1.5g/L, 1.5～
The soda ash of 2.5g/L；By weight, the composition of raw materials of described reduction cleaner is as follows：
Wherein, described R1It is selected from hydrogen or-R4-R5, R4Be selected from the alkyl that carbon number is straight or branched between 1～6,
R5Be selected from hydroxyl, sulfydryl, phenylol, amide groups, amino, carboxyl,In any one；
R2、R3It independently is selected from the alkyl that carbon number is straight or branched between 0～5.
2. the process for reductive post-cleaning for synthetic fibers according to claim 1, it is characterised in that：By weight, institute
The composition of raw materials of the reduction cleaner stated is as follows：
3. the process for reductive post-cleaning for synthetic fibers according to claim 1 and 2, it is characterised in that：Described R1For choosing
From-R4-R5, R4It selected from carbon number is straight chained alkyl between 1～4 to be, R5Be selected from amino, carboxyl,
In any one.
4. the process for reductive post-cleaning for synthetic fibers according to claim 1 and 2, it is characterised in that：Described R2、R3
It is alkyl between 0～2 independently to be selected from carbon number.
5. the process for reductive post-cleaning for synthetic fibers according to claim 1 and 2, it is characterised in that：Described acetic acid
Slaine is any one in magnesium acetate, zinc acetate, calcium acetate, tin acetate.
6. the process for reductive post-cleaning for synthetic fibers according to claim 1 and 2, it is characterised in that：Described poly- second
The molecular weight of glycol is 400～4000.
7. the process for reductive post-cleaning for synthetic fibers according to claim 1 and 2, it is characterised in that：Described reduction
The preparation method of cleaning agent is：Will be describedDescribedWith it is described30～60min is reacted at 20～40 DEG C, described sodium borohydride is subsequently adding, continue to react 30～
60min, is subsequently adding described dimethyl terephthalate (DMT) and/or described DMIP, described isophthalic two
Formic acid dimethyl ester -5- sodium sulfonates, described polyethylene glycol, described p-methyl benzenesulfonic acid and described mol ratio of metal acetate, heat up
To 150～185 DEG C holding 180～250min, be continuously heating to 220～230 DEG C holding 60～90min, then vacuum for-
0.08～-0.1MP, temperature is 230～280 DEG C of 120～180min of insulation, aggregates into block copolymer, is cooled to 100～120
Blowing after DEG C, obtains final product the reduction cleaner.
8. the process for reductive post-cleaning for synthetic fibers according to claim 7, it is characterised in that：Described block copolymerization
The number-average molecular weight of thing is 10000～18000.
9. the process for reductive post-cleaning for synthetic fibers according to claim 1, it is characterised in that：Described synthetic fibers
For terylene.
10. the process for reductive post-cleaning for synthetic fibers according to claim 1, it is characterised in that：Described reduction is clear
Washing lotion includes reduction cleaner, the soda ash of 1.9～2.1g/L of 1～1.1g/L.
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| CN107956170A (en) * | 2017-11-14 | 2018-04-24 | 五邑大学 | A kind of formic acid rongalite combination of acidic reduction cleaner, its preparation method and its application |
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Application publication date: 20170426 |