CN104452265B - A kind of flaxen fiber low temperature softening processing method - Google Patents
A kind of flaxen fiber low temperature softening processing method Download PDFInfo
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- CN104452265B CN104452265B CN201410668094.XA CN201410668094A CN104452265B CN 104452265 B CN104452265 B CN 104452265B CN 201410668094 A CN201410668094 A CN 201410668094A CN 104452265 B CN104452265 B CN 104452265B
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Abstract
The invention provides a kind of flaxen fiber low temperature softening processing method, it is characterised in that specific steps include：Flaxen fiber is removed into surface impurity by prerinse, 1~10 road softening processing is carried out, drying obtains the flaxen fiber after softening processing；Described softening processing includes infiltrating in flaxen fiber sprays softening treatment fluid in softening treatment fluid or on flaxen fiber, described softening treatment fluid contains alkali and urea or thiocarbamide, handled under low-temperature condition, treatment temperature is 5 DEG C~195 DEG C, processing time is 10s~3h, takes out and cleans flaxen fiber.The simple high-efficiency cleaning of processing method of the present invention, flaxen fiber crystallinity after processing is low, rigidity is low, soft, and prepared fabric is without prodding and itching feeling；Fiber possesses relatively low crystallinity and fiber surface has some perforations and groove, and fiber dyeing performance and moisture pick-up properties are significantly improved.
Description
Technical field
The present invention relates to a kind of method that low temperature softening handles flaxen fiber, belong to field of textiles, new modified natural fiber
Field, falls within natural polymer chemical field.
Background technology
Flaxen fiber is that field of textiles uses one of earliest kinds of fibers.Relative to cotton, fibre of flax for textile material disease and insect resistance energy
Power is strong, needs pesticide volume few in planting process.Flaxen fiber has good moisture absorption and desorption property, and part flaxen fiber species possesses anti-
Bacterium is mothproof or even physiotherapy function, and made fabric has the style of unique rude and natural.But the crystallinity of flaxen fiber and take
It is higher to spending, fibre diameter is big compared with thick, bending rigidity, without curling, appearance is straight, therefore not flexible when being contacted with skin, meeting
Oppress skin and produce prodding and itching feeling.This feature limits the application of flaxen fiber, especially in the textile with direct skin contact
Field.
In recent years to solve the problems, such as ramie product prodding and itching feeling, researchers have carried out a series of trials.Method master is had at present
It is divided into reduction filoplume and the major class of softening two.For the angle for reducing filoplume, mainly have blending, singe, cropping, filoplume fall
The methods such as volt, gluing.Thick and stiff filoplume can be replaced in the soft other materials filoplume of fabric face by blending so that filoplume is close
Degree and quantity are reduced, and prodding and itching feeling is reduced into tolerance interval.But the composition of fabric changes, numb excellent properties and style
It cannot also be embodied enough on finished product.Singe, cropping mode is not only possible that damage is caused to fabric body, and filoplume is in itself
It is not removed, only shortens, the hairiness number compared with big load can be carried on the contrary by adding, this method effect is poor.Realize permanent
Property filoplume flattening is relatively difficult in actual applications, and photoresist coating process can change the gas permeability and moisture pick-up properties of original fabric.Cause
This softening is comparatively preferably.Flaxen fiber softening has three kinds of methods：Physics softening, chemical softening and biological softening.Physics
Softening method can not make flaxen fiber structure change, and be restricted in terms of fiber stainability is improved.Biological softening should
With hindered because lacking the suitable enzyme of high-efficiency and low-cost.In chemical softening method, alkaline process modification is the method for most main flow,
The technological process is simple, advantage of lower cost, but there is the problem of quantity of alkali consumption is big, environmental pollution is serious.Novel process
Constantly emerge in large numbers, such as cation-modified, liquid ammonia modified, copper ammon solution is modified, NMMO is modified, alkylation modification and acetylation change
Property etc..But can also face some problems using these new methods.As the cation-modified dyeing uniformity to fiber has an impact；
Liquid ammonia modified and NMMO is modified expensive；Copper ammon solution is unstable, is also easy to produce ammonia；Alkylation modification can cause fiber good
The damage of property；Acetylated modification technological process is long, if the too low modified effect of degree of acetylation is not obvious in addition, it is impossible to effective
The recrystallization phenomenon of cellulose molecular chain is prevented, if conversely, degree of acetylation is too high, can not only increase cost, can also make numb fibre
The feel of dimension is excessively soft, the characteristics of losing well-pressed and rough, damages the natural style of flaxen fiber.As can be seen here, make stingless at present
Gargalesthesia ramie product still has difficulties.
The content of the invention
It is an object of the invention to provide a kind of method of low-temperature treatment softening flaxen fiber, obtained flaxen fiber has cotton fiber
Sense of touch, so as to solve the problems, such as ramie product prodding and itching feeling, expands the application of fiber crops.This method is easy to industrialized production, and production process is not related to
And toxicity auxiliary agent, treatment fluid can recycle, and low cost clean manufacturing can be achieved.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of flaxen fiber low temperature softening processing method, it is characterised in that specific steps include：Flaxen fiber is passed through into prerinse
Surface impurity is removed, 1~10 road softening processing is carried out, drying obtains the flaxen fiber after softening processing；Described softening processing bag
Include and softening treatment fluid is sprayed into flaxen fiber infiltration in softening treatment fluid or on flaxen fiber, described softening treatment fluid contains alkali
And urea or thiocarbamide, handled under low-temperature condition, treatment temperature is 5 DEG C~-195 DEG C, processing time is 10s~3h,
Take out and clean flaxen fiber.
Preferably, described alkali is at least one of sodium hydroxide, lithium hydroxide and potassium hydroxide, in softening treatment fluid
The concentration of alkali is 5wt%~15wt%.
Preferably, the concentration of urea or thiocarbamide is 5wt%~15wt% in described softening treatment fluid.
Preferably, also containing anti-sticking and soft treatment auxiliary agent in described softening treatment fluid, its concentration be 5wt%~
15wt%.
It is highly preferred that described anti-sticking and soft treatment auxiliary agent is at least one of boron salt, glycerine and organosilicon.
Preferably, described cleaning temperature is 10 DEG C~90 DEG C.
Preferably, described softening treatment fluid filtering Posterior circle is used.
Consumption-type reaction does not occur for the processing procedure of the present invention, and inorganic agent consumption used is few, and used treatment fluid exists
The impurity gone out in temperature-rise period from Fibrinolysis is separated out, and can voluntarily be sloughed, be realized recycling for treatment fluid, final to realize environmental protection
Processing procedure.
The flaxen fiber crystallinity handled through above-mentioned softening is reduced with initial modulus, the soft feel with similar cotton fiber,
The effect for removing flaxen fiber prodding and itching feeling is reached.
Ramie product produced by the present invention has following characteristic compared with existing softening ramie product：Flaxen fiber is located under low-temperature condition
Reason, it is possible to reduce because of the damage to cellulose molecular chain that hydrolysis is brought, so as to reduce the damage to fibre machinery performance；Low temperature
Processing can reduce the usage amount of solute in treatment fluid, and treatment fluid is nontoxic in itself to recycle, and on the one hand can drop
Low cost, on the other hand can realize environmental protection production process；Gained processing fiber can keep original nice and cool, ventilative, scattered
The advantages of wet and mothproof antibacterial；Because of fibre crystallinity reduction, surface forms groove structure simultaneously so that moisture pick-up properties, dyeability
It can improve；Fiber stiffness declines, and prodding and itching feeling is substantially reduced.
Brief description of the drawings
Fig. 1 softening process flowcharts of the present invention
Fig. 2 flax fiber surface SEM comparison diagrams (A) before processings before and after the processing of the invention；(B) after handling
Ramee dyeability is contrasted Fig. 3 present invention before and after the processing, and (A1-A5 represents that before processing ramee contaminates respectively
Color 5min, 10min, 35min, 50min, 65min；B1-B5 respectively expression processing after ramee dyeing 5min, 10min,
35min、50min、65min)
Embodiment
Below by embodiment combination accompanying drawing, the invention will be further described.
Embodiment 1
A kind of flaxen fiber low temperature softening processing method, is concretely comprised the following steps：As shown in figure 1, ramee is carried out in advance with water
Cleaning removes surface impurity, carries out 1 road softening processing, and drying obtains the ramee after softening processing；Described softening processing
Including ramee is infiltrated in softening treatment fluid according to setting bath raio 1: 24, described softening treatment fluid by sodium hydroxide,
Urea and water composition, the concentration of sodium hydroxide is 7wt%, and the concentration of urea is 12wt%, 4 DEG C is cooled in advance, under low-temperature condition
Handled, treatment temperature is -10 DEG C, and processing time is 30min, take out, be warming up to 25 DEG C, first cleaned using softening treatment fluid
Fiber, reuses water cleaning, and 50 DEG C of drying obtain the flexible ramee of cotton sense, and described softening treatment fluid filtering Posterior circle makes
With.
Embodiment 2
A kind of flaxen fiber low temperature softening processing method, is concretely comprised the following steps：As shown in figure 1, flax fiber is carried out in advance with water
Cleaning removes surface impurity, carries out 3 road softening processing, and drying obtains the flax fiber after softening processing；Per pass softening processing bag
Include and infiltrate flaxen fiber in softening treatment fluid according to setting bath raio 5: 24, described softening treatment fluid is by sodium hydroxide, thiocarbamide
With water composition, the concentration of sodium hydroxide is 5.5wt%, and the concentration of thiocarbamide is 13.5wt%, -15 DEG C is cooled in advance, in low-temperature condition
Lower to be handled, treatment temperature is -80 DEG C, and processing time is 1h, takes out, is warming up to 30 DEG C, is cleaned using water, 50 DEG C dry
To the flexible flax fiber of cotton sense, flax fiber prodding and itching feeling is significantly improved.Described softening treatment fluid filtering Posterior circle makes
With.
Embodiment 3
A kind of flaxen fiber low temperature softening processing method, is concretely comprised the following steps：As shown in figure 1, ramee is carried out in advance with water
Cleaning removes surface impurity, carries out 5 road softening processing, and drying obtains the ramee after softening processing；Per pass softening processing bag
Include and infiltrate ramee in softening treatment fluid according to setting bath raio 1: 24, described softening treatment fluid is by sodium hydroxide, urine
Element and water composition, the concentration of sodium hydroxide is 11wt%, and the concentration of urea is 8wt%, -15 DEG C is cooled in advance, under low-temperature condition
Handled, treatment temperature is -80 DEG C, and processing time is 10min, take out, be warming up to 30 DEG C, cleaned using water, 50 DEG C of drying
The flexible ramee of cotton sense is obtained, fibre crystallinity reduction, initial modulus reduction, feel is obviously improved.Described softening processing
Liquid filtering Posterior circle is used.
Embodiment 4
A kind of flaxen fiber low temperature softening processing method, is concretely comprised the following steps：As shown in figure 1, flax fiber is carried out in advance with water
Cleaning removes surface impurity, carries out 3 road softening processing, and drying obtains the flax fiber after softening processing；Per pass softening processing bag
Include and infiltrate flax fiber in softening treatment fluid according to setting bath raio 1: 24, described softening treatment fluid is by lithium hydroxide, sulphur
Urea, G ＆ W composition, the concentration of lithium hydroxide is 7wt%, and the concentration of thiocarbamide is 12wt%, and the concentration of glycerine is 5wt%, in advance
It is cooled to -10 DEG C, is handled under low-temperature condition, treatment temperature is -15 DEG C, and processing time is 1.5h, takes out, be warming up to 30
DEG C, cleaned using water, 50 DEG C of drying obtain the flexible flax fiber of cotton sense, crystallinity reduces by 39%, and initial modulus reaches 8Gpa, drop
Low 59%, the similar cotton fiber of feel, no prodding and itching feeling.Such as Fig. 2, ultimate flax fibre surface SEM is contrasted with before processing after processing, its
Surface forms some small holes and groove, is conducive to diffusion of the dyestuff from surface to fibrous inside, and dye-uptake is improved.Also have simultaneously
Have the advantages that regain is high.
Embodiment 5：
A kind of flaxen fiber low temperature softening processing method, is concretely comprised the following steps：As shown in figure 1, china-hemp fibers are carried out in advance with water
Cleaning removes surface impurity, carries out 6 road softening processing, and drying obtains the china-hemp fibers after softening processing；Per pass softening processing bag
Include and infiltrate china-hemp fibers in softening treatment fluid according to setting bath raio 7: 24, described softening treatment fluid is by potassium hydroxide, sulphur
Urea, sodium tetraborate and water composition, the concentration of potassium hydroxide is 8.5wt%, and the concentration of thiocarbamide is 10.5wt%, and the concentration of boron salt is
5wt%, is cooled to -10 DEG C in advance, is handled under low-temperature condition, and treatment temperature is -80 DEG C, and processing time is 1.5h, takes out, and rises
Temperature is cleaned to 25 DEG C using water, and 50 DEG C of drying obtain the flexible china-hemp fibers of cotton sense.Described softening treatment fluid filtering Posterior circle makes
With.
Embodiment 6：
A kind of flaxen fiber low temperature softening processing method, is concretely comprised the following steps：As shown in figure 1, ramee is carried out in advance with water
Cleaning removes surface impurity, carries out 1 road softening processing, and drying obtains the ramee after softening processing；Per pass softening processing bag
Include and infiltrate ramee in softening treatment fluid according to setting bath raio 3: 24, described softening treatment fluid is by sodium hydroxide, urine
Element, amino-modified silicone softening agent and water composition, the concentration of potassium hydroxide is 7wt%, and the concentration of thiocarbamide is 12wt%, boron salt
Concentration be 10wt%, be cooled in advance-10 DEG C, handled under low-temperature condition, treatment temperature is -35 DEG C, and processing time is
5min, takes out, is warming up to 30 DEG C, first cleans fiber using treatment fluid, reuses water cleaning, and 50 DEG C of drying obtain the flexible ramie of cotton sense
Flaxen fiber, crystallinity reduction, initial modulus reduction, dyeability significantly improves (such as Fig. 3), and feel is obviously improved, and has been reached and has been changed
The effect of kind ramee prodding and itching feeling.Described softening treatment fluid filtering Posterior circle is used.
Claims (5)
1. a kind of flaxen fiber low temperature softening processing method, it is characterised in that specific steps include：Flaxen fiber is passed through into prerinse
Surface impurity is removed, 1~10 road softening processing is carried out, drying obtains the flaxen fiber after softening processing；Described softening processing bag
Include by flaxen fiber infiltration in the softening treatment fluid of precooling, described softening treatment fluid contains alkali and urea or thiocarbamide, described
Softening treatment fluid in also containing anti-sticking and soft treatment auxiliary agent, its concentration is the wt% of 5 wt%~15；Described anti-sticking and softness
Processing auxiliary agent is at least one of boron salt, glycerine and organosilicon, is then handled under low-temperature condition, treatment temperature is 5
DEG C~-195 DEG C, processing time is the h of 10 s~3, takes out and cleans flaxen fiber.
2. flaxen fiber low temperature softening processing method as claimed in claim 1, it is characterised in that described alkali be sodium hydroxide,
The concentration of alkali is the wt% of 5 wt%~15 at least one of lithium hydroxide and potassium hydroxide, softening treatment fluid.
3. flaxen fiber low temperature softening processing method as claimed in claim 1, it is characterised in that urinated in described softening treatment fluid
The concentration of element or thiocarbamide is the wt% of 5 wt%~15.
4. flaxen fiber low temperature softening processing method as claimed in claim 1, it is characterised in that described cleaning temperature is 10 DEG C
~90 DEG C.
5. flaxen fiber low temperature softening processing method as claimed in claim 1, it is characterised in that described softening treatment fluid filtering
Posterior circle is used.
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| CN201410668094.XA CN104452265B (en) | 2014-11-20 | 2014-11-20 | A kind of flaxen fiber low temperature softening processing method |
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| CN201410668094.XA CN104452265B (en) | 2014-11-20 | 2014-11-20 | A kind of flaxen fiber low temperature softening processing method |
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| CN104452265B true CN104452265B (en) | 2017-08-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104862910A (en) * | 2015-05-14 | 2015-08-26 | 长兴圣帆纺织有限公司 | Processing method of non-pulp yarn |
| CN104862989A (en) * | 2015-05-14 | 2015-08-26 | 长兴圣帆纺织有限公司 | Processing method of printed fabric |
| CN105133288B (en) * | 2015-10-12 | 2017-04-05 | 东华大学 | A kind of preparation method of environment-friendly type containing cellulose fiber fabric lining cloth |
| CN105113236B (en) * | 2015-10-14 | 2017-08-25 | 浙江超凡制衣有限公司 | A kind of low skin irritability flax material and its preparation technology |
| CN105350313B (en) * | 2015-12-24 | 2017-10-03 | 西南大学 | Anti- prodding and itching feeling method for sorting of the sodium hydroxide/urea aqueous systems to ramie fabric |
| CN105401402B (en) * | 2015-12-24 | 2017-10-20 | 西南大学 | A kind of preparation method with magnetic bafta |
| CN111058192A (en) * | 2019-12-09 | 2020-04-24 | 江苏索富达无纺布有限公司 | Fibrilia composite non-woven fabric and preparation method thereof |
| CN111379162B (en) * | 2020-04-01 | 2022-06-17 | 青岛大学 | Softening method of ramie fibers |
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