CN102828255B - Processing method of long hemp - Google Patents
Processing method of long hemp Download PDFInfo
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- CN102828255B CN102828255B CN201210324235.7A CN201210324235A CN102828255B CN 102828255 B CN102828255 B CN 102828255B CN 201210324235 A CN201210324235 A CN 201210324235A CN 102828255 B CN102828255 B CN 102828255B
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Abstract
The invention provides a processing method of long hemp, and relates to a method for processing the hemp fibers which are the materials separated from hemp stalk bark. The processed fibers can be blended with cotton, wool and cashmere fibers to produce fine and extra-large hemp/cotton and hemp/wool blended yarns. The method comprises the following technical steps of: mechanical opening and impurity removing, chemical degumming processing, mechanical dehydrating and degumming processing, secondary chemical degumming processing and post-degumming processing. The method is simple, and easy to carry out. Over 95% of pectin, lignin and waxiness in the fibers can be removed via the method. The processed fibers have soft handfeel and the separation degree over 3500Nm; and the fiber main body is 37 to 43mm in length, thus, the spinnability and the stainability of the fibers can be greatly improved. The processing method effectively increases the economic value of the long hemp; and moreover, the waste water produced in the production is easily purified; and some purified waste water can be recycled. The processed waste water has no pollution to the environment. The method is an ideal processing method of the long hemp.
Description
Technical field
The present invention relates to a kind of for the long fiber crops of hemp, the i.e. method that after hemp skin bar separation, gained flax fibre is processed.After making to process the fiber that obtains can with cotton and wool, cashmere fiber blending, be used for producing thin special hemp/cotton, hemp/wool blending yarn.
Background technology
Hemp is as a kind of eco-textile material, extensive use in production high-grade fabric.Because the textiles that contains hemp not only has good gas permeability, hygroscopicity and wet putting, also there is natural antibiotic health care, ultra-violet radiation resisting and noise reduction and inhale the functions such as ripple.At present, from large anesthesia stem, separating hemp has after retting and to separate and directly to separate two kinds without retting.The long fiber crops of hemp involved in the present invention are the hemps that directly do not separate through retting, in the skin bar separation process of hemp, obtain two kinds of hemp fibre products, and the long fiber crops of hemp and hemp two are thick.In the long fiber crops of hemp, contain the impurity such as more waste of flax, spinnability is very poor, pass through necessary processing, is mainly can carry out dry method spinning after removing the gelatinous layer of fiber surface.
At present, a lot of for the long numb Degumming method of hemp, as chemical degumming law, biological enzyme, Physical etc., every kind of Degumming method all has its pluses and minuses.The waste water that most chemical Degumming method produces is difficult to process, and causes seriously polluted to water quality; Biological enzyme comes unstuck longer to the processing time of fiber, and economic benefit and productivity ratio are lower; Also there is removal effect to the fiber surface gelatinous layer undesirable problem as same in steam explosion method with Physical in above two kinds of methods.The hemp wiriness, the division degree that after processing, obtain are low, and coloring and spinnability are all low, cause difficulty to the processing of later process.In chemical Degumming process, the colloid that has part to be removed is attached to fiber surface, wash with water and be difficult to remove, after the cooling oven dry of flax fibre, this part colloid is solidified again and is sticked on fiber, the degumming effect that this has affected fiber greatly, makes flax fibre after treatment produce thin special hemp/cotton and hemp/wool blended yarn with cotton fiber, wool fibre blending, can only produce the low-grade large linen fabrics.
Summary of the invention
For above-mentioned situation, the object of this invention is to provide not only economy but also convenient of one, and the good long numb processing method of hemp of degumming effect, the practical problem existing to solve existing method.Improve the long numb spinning property of hemp.Solve the problem that existing processing method exists.
The present invention is achieved by following technical solution.Its processing step comprises mechanical shredding removal of impurities processing, chemical Degumming processing, mechanical degumming processing, the processing of secondary chemical Degumming and the post processing of coming unstuck.
1, mechanical shredding removal of impurities processing
Long hemp fiber crops are carried out to tear fracture, shredding and removal of impurities on opener.Hemp after processing is bar web-like.
2, chemical Degumming processing
Chemical Degumming is to adopt alkali to add hydrogen peroxide single bath process.Bar web-like flax fibre after shredding removal of impurities is carried out to chemical Degumming in High Temperature High Pressure cooker.
The preparation of 2-1 degumming baths and digesting technoloy
The auxiliary agent that degumming baths adopts is NaOH, hydrogen peroxide and hydrogen peroxide bleaching stabilizer.Hydrogen peroxide bleaching stabilizer is non-silicon type hydrogen peroxide bleaching stabilizer KF-05.The water consumption of degumming baths is calculated by the bath raio 1: 8～12 of boiling fiber crops amount.The consumption of NaOH is 4～10g/L.Hydrogen peroxide consumption is 4～8g/L.Non-silicon type hydrogen peroxide bleaching stabilizer consumption is 1～3g/L.In secondary tank, stir.Then the degumming baths preparing is squeezed into and boiled numb tank fiber is carried out to boiling.Boiling numb temperature is 130～150 DEG C.Time is 1～3 hour.After treating boiling, first remove temperature drop and press, then will boil liquid and put back to treatment tank.
The washing of 2-2 detergent
Fiber detergent after boiling is come unstuck washs, and detergent is FK-9503.The water consumption of washing is calculated by bath raio 1: 8～12, and the consumption of FK9503 is 2～5g/L.Wash temperature is 70～100 DEG C.Time is 15～30 minutes.After washing, washing liquid is put back to treatment tank.
2-3 hot water wash
Fiber after detergent washing is carried out to hot wash to pH value neutrality.
3, mechanical dehydration degumming process
Chemical Degumming takes out fiber crops after processing from boil numb tank, and fiber crops are maintaining item web-like still, and ramie stripes is carried out to mechanical dehydration degumming process on the numb machine of pressure.
3-1 presses numb machine principle
Press numb machine by forming to numb curtain, feeding roller, extruding roller and water spray system four parts.Ramie stripes after chemical Degumming, through being delivered to feeding roller to numb curtain, is delivered to extruding roller by feeding roller traction, and water spray system is pushing roller top to ramie stripes shower water.Flax fibre makes the colloid that is attached to flax fibre surface be extruded together with water by the extruding of extruding roller, thereby reaches the object of removing colloid.Flax fibre is derived after extruding roller..
4, secondary chemical Degumming processing
Secondary chemical Degumming is to adopt hydrogen peroxide bleaching degumming method.Numb pressure machine fiber after treatment is carried out to chemical Degumming in High Temperature High Pressure cooker.
The preparation of 4-1 degumming baths and digesting technoloy
The auxiliary agent that degumming baths adopts is hydrogen peroxide, NaOH, hydrogen peroxide bleaching stabilizer.Hydrogen peroxide bleaching stabilizer is KF-05.The water consumption of degumming baths is calculated by the bath raio 1: 8～12 of boiling fiber crops amount.The consumption of NaOH is 6-10g/L.Hydrogen peroxide consumption is 8～12g/L.Hydrogen peroxide bleaching stabilizer consumption is 1～3g/L.In secondary tank, stir.Then the degumming baths preparing is squeezed into and boiled numb tank fiber is carried out to boiling.Boiling numb temperature is 100 DEG C.Boiling the fiber crops time is 1 hour.After boiling, first remove temperature drop and press, then will boil liquid and put back to treatment tank.
The washing of 4-2 detergent
Fiber detergent after boiling is come unstuck washs, and that detergent uses is the environment-friendly type detergent FK-9503 of Beijing Chemical Co., Ltd. in Textile.The water consumption of washing is calculated by bath raio 1: 8～12, and the consumption of FK9503 is 2～5g/L.Wash temperature is 70～100 DEG C.Time is 15～30 minutes.After washing, washing liquid is put back to treatment tank.
4-3 hot water wash
Fiber after detergent washing is carried out to hot wash to pH value neutrality
5, the post processing of coming unstuck
The post processing of coming unstuck comprises soft treatment, oven dry, health processing and three steps of mechanical carding.
5-1 soft treatment
Preparation and the usage of 5-1-1 soft treatment liquid
The softener adopting is DT-250, and consumption is 2%～6% of hemp gross weight, and water consumption is calculated by bath raio 1: 8～12.Stir.By the fiber impregnation after coming unstuck, in soft treatment liquid, dip time is 15～45 minutes, and treatment fluid temperature is 40～55 DEG C.
5-2 is dried, health processing
After fiber after soft treatment is dewatered, on dryer, flax fibre is dried to regain be 60%～100%, then by dry after fiber spray health finish.The hemp softening oil adopting is ZY06A.
The preparation of 5-2-1 health treatment fluid
Healthy liquid is prepared in 1: 10～20 ratio, and a hemp softening oil adds the water of 10 to 20 parts, stirs.The consumption of health treatment fluid is 4%～10% of hemp weight.
5-2-2 health-preserving method
After health treatment fluid is sprayed on fiber, in health preserving room, leave standstill health.Conditioned time is 24～72 hours.Health temperature is 35～50 DEG C.Fiber regain after health is controlled between 25%～35%.
5-3 fiber opening, slivering
Fiber after health is carried out to shredding on mixed numb humidifier, be bar web-like, for subsequent use.
5-4 mechanical carding
Bar web-like flax fibre is carried out to combing on carding machine.
The inventive method is simple, easy to implement.Reagent market related in method is all on sale.Adopt the inventive method can remove pectin, lignin and cured matter in fiber more than 95%.Fiber after treatment is soft, and more than division Du Keda 3500Nm, modal staple length is 37-43mm, has greatly improved spinnability and the colourability of fiber.Effectively improve the long numb economic worth of hemp.In addition, the waste water that the present invention produced aborning can be purified easily, reusable edible after part purification of waste water.Waste water after treatment can be to environment.It is the long numb processing method of a kind of very good hemp.
The present invention is without accompanying drawing
Detailed description of the invention
By long hemp fiber crops tear fracture, shredding and removal of impurities on mixed numb humidifier.Last slivering web-like is for subsequent use.Again after treatment web-like fiber packed into and boiled in numb cage, approximately 200 kilograms, every cage.Hang and hang in High Temperature High Pressure cooker by the numb cage of boiling of fiber is housed with sky.The NaOH preparing in secondary tank, hydrogen peroxide, hydrogen peroxide bleaching stabilizer treatment fluid are squeezed into and boiled numb tank.After sealing, be warming up to 130 DEG C.Boiling the fiber crops time is 2 hours.Boiling sodium hydrate content in liquid is 8g/L, hydrogen peroxide content 6g/L, and hydrogen peroxide bleaching stabilizer content is 2g/L.Wait to boil fiber crops complete, after cooling row pressure, waste water is entered to treatment tank No. 1.Then carry out detergent washing.Detergent consumption is 2g/L, and water consumption is bath raio 1: 10..Water temperature is 80 DEG C.Wash time is 20 minutes.After washing, waste water is put back to treatment tank No. 2.And then carry out a hot wash to PH for neutral.And then carry out cold water washing one time.After cold water washing, hang numb cage is hung out with sky, flax fibre maintaining item web-like is taken out.Then on the numb machine of pressure, carry out mechanical degumming processing.Ramie stripes one end is sent into and pressed numb machine to numb curtain, and through being sent to feeding roller to numb curtain, fiber crops are sent to extruding roller by feeding roller traction, presses roller top to have water spray system to ramie stripes shower water in agent simultaneously.After the extruding of extruding roller, the colloid of flax fibre surface attachment, along with the water being extruded is removed.Finally press roller that ramie stripes is derived by agent.Then fiber after treatment mechanical degumming is carried out to secondary bleaching and come unstuck, fiber after treatment mechanical degumming is filled to cage again, hang in and boil in numb tank with sky, the NaOH preparing in secondary tank, hydrogen peroxide, hydrogen peroxide bleaching stabilizer treatment fluid are squeezed into and boiled numb tank.After sealing, be warming up to 100 DEG C.Boiling the fiber crops time is 1 hour.Boiling sodium hydrate content in liquid is 8g/L, and hydrogen peroxide content is 10g/L, and hydrogen peroxide bleaching stabilizer content is 2g/L.Wait to boil fiber crops complete, after cooling row pressure, waste water is entered to treatment tank No. 1.Then carry out detergent washing.Detergent consumption is 2g/L, and water consumption is bath raio 1: 10..Water temperature is 80 DEG C.Wash time is 20 minutes.After washing, waste water is put back to treatment tank No. 2.And then carry out a hot wash to PH for neutral.And then carry out cold water washing one time.Fiber after treatment secondary chemical Degumming is carried out to soft treatment.The softener solution preparing in secondary tank is squeezed into and boiled in numb tank, be warming up to 45 DEG C, softener consumption is 3% of hemp weight, by fiber impregnation in softener solution 40 minutes, waste water is put into treatment tank No. 2 after waiting dipping.Sewage reusable edible after purified treatment in No. 2 treatment tanks.Again fiber after treatment is carried out to dewatered drying processing.Rule of thumb gained, dryer technical parameter is set as 110 DEG C of temperature, motor speed be 300 turn/hour, the numb regain of drying can be controlled to 60%～100%.Again the fiber after drying is carried out to health processing.Health is to spray hemp softening oil ZY06A at fiber surface.Healthy liquid is prepared in the ratio of 1: 15, stirs.The consumption of health treatment fluid is 6% of fibre weight.In High-temperature Curing room, leave standstill health 48 hours.Health preserving room temperature is 35～50 DEG C.Health is between fiber regain 25%～35%.Again by the fiber after health through the combing of linen look carding machine, packing.
Claims (1)
1. the long numb processing method of hemp, is characterized in that:
Machinery shredding removal of impurities processing
Long hemp fiber crops are carried out to tear fracture, shredding and removal of impurities on opener, and the hemp after processing is bar web-like,
Chemical Degumming processing
Chemical Degumming is to adopt alkali to add hydrogen peroxide single bath process, and the bar web-like flax fibre after shredding removal of impurities is carried out to chemical Degumming in High Temperature High Pressure cooker,
The preparation of degumming baths and digesting technoloy
The auxiliary agent that degumming baths adopts is NaOH, hydrogen peroxide and hydrogen peroxide bleaching stabilizer, hydrogen peroxide bleaching stabilizer is non-silicon type hydrogen peroxide bleaching stabilizer KF-05, the water consumption of degumming baths is calculated by the bath raio 1: 8～12 of boiling fiber crops amount, the consumption of NaOH is 4～10g/L, hydrogen peroxide consumption is 4～8g/L, and non-silicon type hydrogen peroxide bleaching stabilizer consumption is 1～3g/L, and boiling numb temperature is 130～150 DEG C, time is 1～3 hour
Detergent washing
Detergent is FK-9503, and the water consumption of washing is calculated by bath raio 1: 8～12, and the consumption of FK9503 is 2～5g/L, and wash temperature is 70～100 DEG C, and the time is 15～30 minutes,
Hot water wash
Fiber after detergent washing is carried out to hot wash neutral to pH value,
Mechanical dehydration degumming process
After chemical Degumming is processed, ramie stripes is carried out to mechanical dehydration degumming process on the numb machine of pressure,
The processing of secondary chemical Degumming
The preparation of degumming baths and digesting technoloy
The auxiliary agent that degumming baths adopts is hydrogen peroxide, NaOH, hydrogen peroxide bleaching stabilizer, hydrogen peroxide bleaching stabilizer is KF-05, the water consumption of degumming baths is calculated by the bath raio 1: 8～12 of boiling fiber crops amount, the consumption of NaOH is 6～10g/L, and hydrogen peroxide consumption is 8～12g/L, and hydrogen peroxide bleaching stabilizer consumption is 1～3g/L, boiling numb temperature is 100 DEG C, boiling the fiber crops time is 1 hour, after waiting boiling
Detergent washing
Detergent is FK-9503, and the water consumption of washing is calculated by bath raio 1: 8～12, and the consumption of FK9503 is 2～5g/L, and wash temperature is 70～100 DEG C, and the time is 15～30 minutes,
Hot water wash
Fiber after detergent washing is carried out to hot wash neutral to pH value,
The post processing of coming unstuck
Soft treatment
The preparation of soft treatment liquid and usage
Softener is DT-250, and consumption is 2%～6% of hemp gross weight, and water consumption is calculated by bath raio 1: 8～12, stirs, and by the fiber impregnation after coming unstuck, in soft treatment liquid, dip time is 15～45 minutes, and treatment fluid temperature is 40～55 DEG C,
Oven dry, health processing
On dryer, flax fibre is dried to regain be 60%～100%,
The preparation of health treatment fluid
Adopt ZY06A hemp softening oil, healthy liquid and water are prepared in 1: 10～20 ratio, and the consumption of health treatment fluid is 4%～10% of hemp weight,
Health-preserving method
Health treatment fluid is sprayed on fiber, in health preserving room, leave standstill, conditioned time is 24～72 hours, and health temperature is 35～50 DEG C, and the fiber regain after health is controlled between 25%～35%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105442060A (en) * | 2015-11-11 | 2016-03-30 | 六安市华龙麻纺工艺制品有限公司 | Hemp fiber preparation method |
| CN105442057A (en) * | 2015-11-11 | 2016-03-30 | 六安市华龙麻纺工艺制品有限公司 | Fluorescence processing method for preparing hemp fibers |
| CN106567136B (en) * | 2016-10-27 | 2018-09-18 | 青岛大学 | A kind of fining production method of apocynum fibre |
| CN106567140B (en) * | 2016-10-27 | 2018-09-18 | 青岛大学 | A kind of fining production method of the keen-witted and capable flaxen fiber of bluish dogbane |
| CN106567139B (en) * | 2016-10-27 | 2018-09-18 | 青岛大学 | A kind of production method of bluish dogbane degummed ramie |
| CN108754618A (en) * | 2018-06-11 | 2018-11-06 | 傅作义 | A kind of long numb processing method with long service life |
| CN108754619A (en) * | 2018-06-11 | 2018-11-06 | 傅作义 | A kind of cast tow processing method for being not easy to fade |
| CN108796627A (en) * | 2018-06-11 | 2018-11-13 | 傅作义 | A kind of cast tow boiling degumming processing technology |
| CN108588853A (en) * | 2018-06-11 | 2018-09-28 | 傅作义 | A kind of numb processing technology of nourishing type length |
| CN113265709A (en) * | 2021-06-18 | 2021-08-17 | 大连工业大学 | Degumming treatment method for apocynum venetum |
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Address after: 115004 No.8 Kelong Road, No.9 District, high tech Zone, Yingkou City, Liaoning Province Patentee after: Liaoning Xinyi Hanma new material technology development Co.,Ltd. Address before: 115004 No.8 Kelong Road, No.9 District, high tech Zone, Yingkou City, Liaoning Province Patentee before: YINGKOU XINYI TEXTILE Co.,Ltd. |