CN102443910B - Method for spinning medium-top grade pure linen yarns with scotched flax - Google Patents
Method for spinning medium-top grade pure linen yarns with scotched flax Download PDFInfo
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Abstract
The invention discloses a method for spinning medium-top grade pure linen yarns with scotched flax, which uses the scotched flax as raw materials, and is used for spinning the medium-top grade pure linen yarns by means of improvement of existing technological equipment and technological parameters. The method is mainly characterized by including the steps of increasing the needling density of heckling fallers, increasing drawing times and the faller gill density, strictly controlling the twisting coefficient and winding density of rough yarns, adopting organic boiling off and secondary bleaching, strictly controlling spun yarn twisting coefficient and spindle rotating speed, keeping proper drying temperature and drying time, and controlling groove drum rotating speed and tension piece weight. The method for spinning the medium-top grade pure linen yarns with the scotched flax has the advantages that the method is reasonable in technology, the technological equipment is improved simply, and the quality of the medium-top grade pure linen yarns spun by the scotched flax reaches quality standard and the like. The method opens up a new approach for spinning the medium-top grade pure linen yarns with inferior scotched flax.
Description
Technical field
The present invention relates to a kind of method that scutched line spins medium-to-high grade pure flax yarn, belong to Textile Engineering field.
Background technology
Current flax preliminary working is all to adopt dewret method substantially, loose on the ground by falx straw, pass through dew, the effect of rainwater, sunlight and some microorganisms, falx straw external skins is corroded and dissolved, and then by having gone the falx straw of skin by artificial or mechanical lashing, obtain spinnable linen fibre.
But it is positioned at outer field linen fibre, due to bast and wooden between pectic substance effect and bonding degree inequality, add again climatic influences, just there are many flaws in surface fibre essence, and it is more to include lignin, so that its wiriness, fragility is higher, and elasticity is very low.Described this linen fibre, is referred to as in the industry scutched line conventionally.
Conventionally linen fibre is in spinning processing process, especially in kiering operation, although some non-cellulose such as the removal lignin of trying one's best, but because the lignin of irregular distribution plays a part bonding and supports fiber in plant cell wall, by part process of fiber after treatment, understand owing to being degraded or oxidized dose of oxidation scission, and reduce its spinnability.And because the content of lignin is more, and be objectively impossible completely removed, so that pliability and the filament intensity etc. of this linen fibre are all poor.
It is being just the fiber of high-crystallinity, high orientation due to linen fibre, and there is high-regularity, and make close structure between linen fibre construction unit and strand, and can displaceability low, increase difficulty to the compartition combing processing of fibre bundle and the non-selective effect of chemical industry material.And the quality of described scutched line is poorer than general common linen fibre, so give described scutched line especially combing of spinning processing, boil and float and the processing such as wet spinning spun yarn, will inevitably cause more technology barrier.
Because all bad performance and the inferior quality of described scutched line were all considered as scutched line in the industry not available discarded leftover bits and pieces processing in the past.
Growing along with flax textile industry, global flax raw material supply day is becoming tight, and domestic flax is supplied wretched insufficiency especially.Thereby, how to utilize originally discarded scutched line spinning pure flax yarn, just become the research and development problem being taken seriously in the industry.
Summary of the invention
The present invention aims to provide a kind of scutched line and spins the method for medium-to-high grade pure flax yarn, further to improve economic results in society.
The technical though that the present invention realizes its object is according to the thick and stiff crisp feature of described scutched line, by the improvement of process equipment, to adopt machinery and chemically treated method, the compartition power of raising to fiber; Appropriateness increases drafting number of times, controls twist multiplier and the rolling density of rove; Adopt organic kiering and secondary bleaching process, with the kiering of weak base replacement highly basic, realize and gently boil gently and float, effectively avoid fibrous fracture; Adopt the drawing-off of curve finespun, effectively control fiber movement, by controlling ramie yarn twist coefficient, ensure spun yarn intensity and reduce board end breakage rate; The weight of selecting properly influence of winding tension sheet and the rotating speed of groove drum; In existing spinning, on the bast-fiber spinning apparatus of high grade yarn, realize object of the present invention by the improvement of technological equipment and technological parameter.
Based on above-mentioned technical though, the technical scheme that the present invention realizes its object is:
A kind of scutched line spins the method for medium-to-high grade pure flax yarn, taking scutched line as raw material, its process comprises hackling, become drafting, slubbing, boil float, wet spinning spun yarn, oven dry and winding procedure, improve as its technological equipment and to described technological equipment taking the bast-fiber spinning apparatus that has high grade yarn in spinning, and its:
A, in hackling operation, increase the bestock of at least 2 hackling needle plates that is positioned at front, to strengthen the ability of heckling machine compartition linen fibre, improve the division degree of linen fibre, remove non-fiber impurity simultaneously;
B, becoming, mixing in doubling step, increase the density of faller gill, to implement faller gill to the linen fibre compartition once again through the processing of hackling operation, improve the division degree of drafting output bars; At least increase drafting number of times one time, and dwindle successively flax sliver feeding guide plate from slubbing drafting to extreme trace drafting and space, make the bar of extreme trace drafting output flax sliver heavily be controlled within the scope of 4 ~ 4.5g/m;
C, in slubbing operation, suitably reduce roving twist and rolling density, roving twist coefficient is controlled in 0.8 ~ 0.2 scope, rolling density is controlled in 0.36 ~ 0.38 scope;
D, float operation boiling, comprise organic kiering and secondary bleaching;
Described kiering adopts weak base kiering, and its pH value is controlled in 9.5 ~ 10 scopes, and temperature is controlled within the scope of 80 ~ 100 DEG C, and temperature retention time is controlled within the scope of 1 ~ 1.5h;
The step of described bleaching comprises successively: wash → hot water wash of bleach again → hot water wash → cold wash → overflow of wash → secondary of rove → mono-time pre-bleaching → hot water wash → cold wash → overflow;
The technological parameter of a described pre-bleaching is that the component of its treatment fluid and the weight content of each component in 3000L unit capacity are: Na
2cO
312 ~ 15Kg, JFC 0.8 ~ 1.0Kg, H
2o
225 ~ 30Kg, Na
2siO
325 ~ 30Kg, surplus is water; Temperature retention time is controlled within the scope of 1 ~ 1.5h, and temperature is controlled within the scope of 80 ~ 100 DEG C;
The technological parameter that described secondary is bleached is again: the component of its treatment fluid and the weight content of each component in 3000L unit capacity are: Na
2cO
318 ~ 22Kg, JFC 0.8 ~ 1.0Kg, H
2o
248 ~ 52Kg, Na
2siO
348 ~ 52Kg, surplus is water; Temperature retention time is controlled within the scope of 1.0 ~ 1.5h, and temperature is controlled within the scope of 80 ~ 100 DEG C;
E, at wet spinning spinning process, adopt the motion of the drawing-off curve controlled linen fibre that single apron and light top roller combine; The twist multiplier of spun yarn is controlled in 1.15 ~ 1.2 scopes, and fine spining machine ingot speed control is within the scope of 5800 ~ 6100RPm;
F, at baking operation, adopt radio frequency dryer guipure drying technology, guipure linear velocity is controlled within the scope of 2.8 ~ 3.2m/h, bake out temperature is controlled within the scope of 75 ~ 85 DEG C;
G, at winding procedure, influence of winding tension sheet Weight control is in 90 ~ 100g scope, groove drum rotating speed is controlled within the scope of 400 ~ 450RPm, in the time adopting devil catcher clearing, its devil catcher spaces and is controlled in the scope of 1.5 ~ 1.7 times of yarn diameter; In the time adopting electronic clearing, its technological parameter is lower by 0.5 ~ 0.15% than yam count parameter.
In above-mentioned purport technical scheme, the present invention also advocates, the sodium metasilicate stabilizing agent of the bleaching liquid that a described pre-bleaching and secondary are bleached is again all modulus high-modulus sodium metasilicate in 2.40 ~ 3.66 scopes.Use high-modulus sodium metasilicate used as stabilizers, and strengthened consumption, can slow down hydrogen peroxide reaction speed, make bleaching more even, and adsorbable complex better.
In above-mentioned purport technical scheme, the present invention also advocates, boils rove after floating entering on e operation wet spinning spun yarn before machine through d operation, adopts 40 ~ 50 DEG C of hot water to wash once again.On spun yarn, before machine, to once (can be dipping or spray) of flyer bobbin reusable heat washing, can improve Yarn evenness.
In above-mentioned purport technical scheme, the present invention also advocates, described wet spinning spinning process adopts FX502 type fine spining machine.Practice result shows, the curve drawing that the single apron of described FX502 type fine spining machine and light top roller form and intermediate friction power circle are better to the control ability of fiber movement, is applicable to the technological requirement of scutched line wet spinning spun yarn.
After technique scheme is implemented, the process equipment that the present invention has and the improvement of technological parameter are easy to control; On existing device, carry out omnidistance spinning processing, equipment investment is very little; Adopting inferior discarded scutched line to spin medium-to-high grade pure flax yarn, obtain the features such as larger economic benefit for enterprise, is apparent.
Brief description of the drawings
Fig. 1 is the included process chart of a kind of detailed description of the invention of the present invention.
Detailed description of the invention
A kind of scutched line spins the method for medium-to-high grade pure flax yarn, taking scutched line as raw material, its process comprises hackling, become drafting, slubbing, boil float, wet spinning spun yarn, oven dry and winding procedure, improve as its technological equipment and to described technological equipment taking the bast-fiber spinning apparatus that has high grade yarn in spinning, and its:
In hackling operation, increase the bestock of at least 2 hackling needle plates that are positioned at front, to strengthen the ability of heckling machine compartition linen fibre, improve the division degree of linen fibre, remove non-fiber impurity simultaneously;
At one-tenth, mixing in doubling step, increase the density of faller gill, to implement faller gill to the linen fibre compartition once again through the processing of hackling operation, improve the division degree of drafting output bars; At least increase drafting number of times one time, and dwindle successively flax sliver feeding guide plate from slubbing drafting to extreme trace drafting and space, make the bar of extreme trace drafting output flax sliver heavily be controlled within the scope of 4 ~ 4.5g/m;
In slubbing operation, suitably reduce roving twist and rolling density, roving twist coefficient is controlled in 0.8 ~ 0.2 scope, and rolling density is controlled in 0.36 ~ 0.38 scope;
Float operation boiling, comprise organic kiering and secondary bleaching (comprise pre-bleaching and secondary bleach again);
Described kiering adopts weak base kiering, and its pH value is controlled in 9.5 ~ 10 scopes, and temperature is controlled within the scope of 80 ~ 100 DEG C, and temperature retention time is controlled within the scope of 1 ~ 1.5h;
The step of described bleaching comprises successively: wash → hot water wash of bleach again → hot water wash → cold wash → overflow of wash → secondary of rove → mono-time pre-bleaching → hot water wash → cold wash → overflow;
The technological parameter of a described pre-bleaching is that the component of its treatment fluid and the weight content of each component in 3000L unit capacity are: Na
2cO
312 ~ 15Kg, JFC 0.8 ~ 1.0Kg, H
2o
225 ~ 30Kg, Na
2siO
325 ~ 30Kg, surplus is water; Temperature retention time is controlled within the scope of 1 ~ 1.5h, and temperature is controlled within the scope of 80 ~ 100 DEG C;
The technological parameter that described secondary is bleached is again: the component of its treatment fluid and the weight content of each component in 3000L unit capacity are: Na
2cO
318 ~ 22Kg, JFC 0.8 ~ 1.0Kg, H
2o
248 ~ 52Kg, Na
2siO
348 ~ 52Kg, surplus is water; Temperature retention time is controlled within the scope of 1.0 ~ 1.5h, and temperature is controlled within the scope of 80 ~ 100 DEG C;
At wet spinning spinning process, adopt the motion of the drawing-off curve controlled linen fibre of single apron and light top roller combination; The twist multiplier of spun yarn is controlled in 1.15 ~ 1.2 scopes, and fine spining machine ingot speed control is within the scope of 5800 ~ 6100RPm;
At baking operation, adopt radio frequency dryer guipure drying technology, guipure linear velocity is controlled within the scope of 2.8 ~ 3.2m/h, and bake out temperature is controlled within the scope of 75 ~ 85 DEG C;
At winding procedure, influence of winding tension sheet Weight control is in 90 ~ 100g scope, and groove drum rotating speed is controlled within the scope of 400 ~ 450RPm, and in the time adopting devil catcher clearing, its devil catcher spaces and is controlled in the scope of 1.5 ~ 1.7 times of yarn diameter; In the time adopting electronic clearing, its technological parameter is lower by 0.5 ~ 0.15% than yam count parameter.
And the sodium metasilicate stabilizing agent of the bleaching liquid that a described pre-bleaching and secondary are bleached is again all modulus high-modulus sodium metasilicate in 2.40 ~ 3.66 scopes.
Entering on e operation wet spinning spun yarn before machine and boil rove after floating through d operation, adopting 40 ~ 50 DEG C of hot water to wash again once.
And described wet spinning spinning process, adopts FX502 type fine spining machine.
In above-mentioned detailed description of the invention:
1 to No. 15 needle plate on the heckling machine of described hackling operation, still maintains original bestock, and No. 16 bestock to No. 18 three needle plates, is respectively 16 pins, 18 pins and 20 pins, increases by 2 pins respectively than original needle plate bestock.Experimental result shows: the division degree of linen fibre can improve public of 10 ~ 20Tex(50 ~ 100).
At one-tenth, mixing in doubling step, strengthen the compartition dynamics of faller gill to linen fibre by increasing by 1 drafting number of times, make the division degree of final drawing frame output bars improve 6 ~ 8%, half meter of irregularity of ramie stripes is stabilized in 1.5 ~ 2% scopes, thereby the dry uniformity of Yarn is improved., space by controlling ramie stripes feeding guide plate meanwhile, No. 0 drafting, 1 drafting, No. 2 draftings, the 3 described feeding guide plates that are drafting and No. 4 draftings are spaced, control respectively as 50mm, 40mm, 30mm, 20mm and 18mm.Reducing so in proper order described feeding guide plate spaces, stablize ramie stripes bar weight, and make final drawing frame output bars heavily be not less than 4g/m, so effectively control the generation that twines roller (wide) phenomenon, also reduce the agglomerating phenomenon of ramie stripes " cramp ", reduced the rolling density of rove and spun yarn simultaneously.
In slubbing operation, owing to controlling roving twist and rolling density, more conventional rove is a little less and rarer, and is conducive to float the infiltration for the treatment of fluid and play one's part to the full boiling of rear kiering operation, has effectively improved to boil and has floated effect.
Float operation boiling, adopt " gently boil, gently float " technological principle, and with the kiering of weak base sodium carbonate, not only protected the safety of linen fibre injury-free, and bleaching liquid can reuse, cost is low, environment friendly and pollution-free.The component of the preferred pre-bleaching liquid of the present invention and the weight content in 3000L bodge thereof are: Na
2cO
315Kg, JFC 1Kg, H
2o
230Kg, Na
2siO
330Kg, 80 DEG C of technological temperatures, process temperature retention time 1h; The secondary again component of bleaching liquid and the weight content in 3000L bodge thereof is: Na
2cO
320Kg, JFC 1Kg, H
2o
250Kg, Na
2siO
350Kg, 80 DEG C of technological temperatures, process temperature retention time 1h.
At wet spinning spinning process, employing FX502 type fine spining machine is by adding the stretch exercise of the linen fibre processed of keeping under strict control, and the rotating speed of ramie yarn twist coefficient and spindle, effectively improves the quality of resultant yarn, reduces board end breakage rate.
At baking operation, adopt radio frequency dryer, wet spinning spun yarn spool is placed in frame, then put on guipure and dry.Under effective control of described temperature and guipure linear velocity, avoid the generation of the crisp quality problems such as hard of the outward appearance yellowing of flax spun yarn or quality.
At winding procedure, can adopt respectively machinery and two kinds of clearing modes of electronics, by controlling the rotating speed of groove drum, improve the output of bobbin winder; By the weight of regulation and control tension piece, improve the capacity of bobbin yarn.
Concrete improvement content and the technological parameter of the above each operation, be preferred for this invention, but be not limited to this.
The present invention, on the basis of traditional handicraft and existing technological equipment, through adjusting and improving, by combing suitable weight and the organic combination of Scouring and bleaching process, in the arrangement that both improves fiber, when increasing division degree, is unlikely to again undue effect and damages fiber; And start with from controlling combing parameter, further controlled the fracture of fiber and the generation of ball fiber crops; Adding strictly of passing through into and slightly feed and lead carefully controlled, and progressively improves the regularity of process of fiber, effectively controls the fluctuation of floating fiber; Adopt organic nano technology to carry out effective adjustment and boil to float, avoid the wet strength of process of fiber too to damage, and solve the processing problem of oxidation insoluble matter precipitation, scouring and bleaching effect and WI value (whitness index) are improved, reduce the generation of YI value (yellowness index) and embrittlement fiber, more effectively the non-cellulose material such as expanded lignin; Utilize organic batching simultaneously, greatly improved fibre strength, reach environmental protection standard completely; Boil and float the control of rear rove through the reasonable hygrometric state twist contraction of FX502 type fine spining machine, effectively reduced spinning end breaking rate, improved yarn strength, solved the problem of evenness fault.
The present invention is in improving inferior scutched line fiber utilizability, having overcome inferior scutched line raw material is difficult for boiling, colour-difference, the defect that yarn strength is low, successfully utilize inferior discarded scutched line to be spun into medium-to-high grade linen yarn, for enterprise has obtained larger economic benefit, solve the scutched line of thirsting for for a long time in the industry solving and utilized technical problem.
It is very gratifying that the present invention utilizes lab scale and the pilot scale effect of 75 public (being roughly equal to 45 English props up) pure flax yarns of scutched line spinning.Its resultant yarn property indices all approaches or reaches the existing QUALITY STANDARD of pure flax yarn.
Claims (4)
1. a scutched line spins the method for medium-to-high grade pure flax yarn, taking scutched line as raw material, its process comprises hackling, become drafting, slubbing, boil float, wet spinning spun yarn, oven dry and winding procedure, improve as its technological equipment and to described technological equipment taking the bast-fiber spinning apparatus that has high grade yarn in spinning, it is characterized in that:
A, in hackling operation, increase the bestock of at least 2 hackling needle plates that is positioned at front, to strengthen the ability of heckling machine compartition linen fibre, improve the division degree of linen fibre, remove non-fiber impurity simultaneously;
B, becoming, mixing in doubling step, increase the density of faller gill, to implement faller gill to the linen fibre compartition once again through the processing of hackling operation, improve the division degree of drafting output bars; At least increase drafting number of times one time, and dwindle successively flax sliver feeding guide plate from slubbing drafting to extreme trace drafting and space, make the bar of extreme trace drafting output flax sliver heavily be controlled within the scope of 4 ~ 4.5g/m;
C, in slubbing operation, suitably reduce roving twist and rolling density, roving twist coefficient is controlled in 0.8 ~ 0.2 scope, rolling density is controlled in 0.36 ~ 0.38 scope;
D, float operation boiling, comprise organic kiering and secondary bleaching;
Described kiering adopts weak base kiering, and its pH value is controlled in 9.5 ~ 10 scopes, and temperature is controlled within the scope of 80 ~ 100 DEG C, and temperature retention time is controlled within the scope of 1 ~ 1.5h;
The step of described bleaching comprises successively: wash → hot water wash of bleach again → hot water wash → cold wash → overflow of wash → secondary of rove → mono-time pre-bleaching → hot water wash → cold wash → overflow;
The technological parameter of a described pre-bleaching is that the component of its treatment fluid and the weight content of each component in 3000L unit capacity are: Na
2cO
312 ~ 15Kg, JFC 0.8 ~ 1.0Kg, H
2o
225 ~ 30Kg, Na
2siO
325 ~ 30Kg, surplus is water; Temperature retention time is controlled within the scope of 1 ~ 1.5h, and temperature is controlled within the scope of 80 ~ 100 DEG C;
The technological parameter that described secondary is bleached is again: the component of its treatment fluid and the weight content of each component in 3000L unit capacity are: Na
2cO
318 ~ 22Kg, JFC 0.8 ~ 1.0Kg, H
2o
248 ~ 52Kg, Na
2siO
348 ~ 52Kg, surplus is water; Temperature retention time is controlled within the scope of 1.0 ~ 1.5h, and temperature is controlled within the scope of 80 ~ 100 DEG C;
E, at wet spinning spinning process, adopt the motion of the drawing-off curve controlled linen fibre that single apron and light top roller combine; The twist multiplier of spun yarn is controlled in 1.15 ~ 1.2 scopes, and fine spining machine ingot speed control is within the scope of 5800 ~ 6100RPm;
F, at baking operation, adopt radio frequency dryer guipure drying technology, guipure linear velocity is controlled within the scope of 2.8 ~ 3.2m/h, bake out temperature is controlled within the scope of 75 ~ 85 DEG C;
G, at winding procedure, influence of winding tension sheet Weight control is in 90 ~ 100g scope, groove drum rotating speed is controlled within the scope of 400 ~ 450RPm, in the time adopting devil catcher clearing, its devil catcher spaces and is controlled in the scope of 1.5 ~ 1.7 times of yarn diameter; In the time adopting electronic clearing, its technological parameter is lower by 0.5 ~ 0.15% than yam count parameter.
2. scutched line according to claim 1 spins the method for medium-to-high grade pure flax yarn, it is characterized in that, the sodium metasilicate stabilizing agent of the bleaching liquid that a described pre-bleaching and secondary are bleached is again all modulus high-modulus sodium metasilicate in 2.40 ~ 3.66 scopes.
3. scutched line according to claim 1 spins the method for medium-to-high grade pure flax yarn, it is characterized in that, boils rove after floating entering on e operation wet spinning spun yarn before machine through d operation, adopts 40 ~ 50 DEG C of hot water to wash once again.
4. scutched line according to claim 1 spins the method for medium-to-high grade pure flax yarn, it is characterized in that, described wet spinning spinning process adopts FX502 type fine spining machine.
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| CN107419403B (en) * | 2017-07-07 | 2021-02-12 | 江苏华信亚麻纺织有限公司 | Preparation method of flax hidden stripe fabric |
| CN109402814A (en) * | 2018-12-17 | 2019-03-01 | 海宏（桐乡）纺织有限公司 | A kind of production method of linen thread and yarn |
| CN111719219A (en) * | 2020-06-24 | 2020-09-29 | 东嘉麻棉(常州)有限公司 | Manufacturing process of anti-wrinkle linen fabric |
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| CN1056200C (en) * | 1995-09-01 | 2000-09-06 | 齐齐哈尔大学 | Flax roving boiling and bleaching process |
| CN100393924C (en) * | 2005-11-01 | 2008-06-11 | 徐梅荣 | Extraction and preparation method of fibrilia, fibrilia obtained by the method and application thereof |
| CN101054746B (en) * | 2007-04-29 | 2011-02-16 | 宜兴市舜昌亚麻纺织厂 | Spinning technique for flax tow fine count |
| CN101498068A (en) * | 2008-11-22 | 2009-08-05 | 齐齐哈尔金亚亚麻纺织有限责任公司 | Process for manufacturing flax stocking yarn for circular knitting machine |
| CN101892535B (en) * | 2009-05-18 | 2011-08-10 | 佳木斯三和亚麻纺织有限责任公司 | Method for spinning medium-high count pure flax yarns by twain coarse fiber of flax |
| CN101649544B (en) * | 2009-09-22 | 2012-06-27 | 宜兴市舜昌亚麻纺织有限公司 | Process for producing linen organic yarn |
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