CN101135094A - Pre-treating method for full-hemp cheese - Google Patents
Pre-treating method for full-hemp cheese Download PDFInfo
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- CN101135094A CN101135094A CNA2006100531650A CN200610053165A CN101135094A CN 101135094 A CN101135094 A CN 101135094A CN A2006100531650 A CNA2006100531650 A CN A2006100531650A CN 200610053165 A CN200610053165 A CN 200610053165A CN 101135094 A CN101135094 A CN 101135094A
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- bleaching
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- desizing
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Abstract
The hemp cheese pre-treating process includes one desizing procedure and one scouring and bleaching procedure. Specifically, the hemp cheese pre-treating process includes the following steps: 1. dip rinsing hemp cheese in water inside a desizing jar for 5-10 min and regulating the pH value to 5.5-7.5; 2. mixing desizing agent in 1-5 g/l concentration and permeating scouring agent in 0.5-1.5 g/l concentration to form desizing fluid in the desizing jar and desizing for 5-10 min; 3. heating the desizing fluid to 30-70 deg.c and desizing for 20-40 min before draining the desizing fluid; and 4 water washing the disized hemp cheese. The process can eliminate heavy metal effectively from hemp cheese, raise the whiteness of hemp cheese and raise its strength.
Description
Technical field
The present invention relates to the processing method of linen-cotton yarn, refer more particularly to a kind of pre-treating method of full-hemp cheese.
Background technology
Flax is one of main crudefiber crop of China, and linen fibre has strength ratio cotton fiber height, and is wet strong more powerful than doing, and extends for a short time, absorbs water soon, distributes characteristics such as moisture is also fast, is a kind of good textile fabric.But impurity contents such as the lignin in the linen fibre, pectin, wax, pigment are far above other natural fabric, and content of mineral substances is also very high.In current flax production technology, general way is to add stabilizing agent when hydrogen peroxide bleaching, makes the decomposition rate of hydrogen peroxide steady, plays the effect of protection fiber.Domestic flax factory uses the most generally sodium metasilicate and some absorption or chelating type hydrogen peroxide bleaching stabilizer.A kind of production new technique of ramie cotton yarn-dyed cambric is disclosed as Chinese patent application CN96115177.3, adopt twice boiling of soft water: comprise with soda ash 1.8g/L, caustic soda 18g/L, penetrating agent JFC 1g/L, sodium metasilicate 1.8g/L, soap 1g/L and just boiling, bleach with soda ash 0.5g/L, sodium metasilicate 2g/L, hydrogen peroxide 4g/L secondary boiling process with clorox 1.5g/L, sulfuric acid 1.5g/L again, with among soda ash, each 0.9g/L of dodium thiosulfate and dechlorination, carry out oxygen with sodium metasilicate 40B L4g/L and hydrogen peroxide 5.5mL/L and float, brighten with VBL0.03g/L and soap 0.2g/L.But be to use sodium metasilicate on equipment, to deposit and cause the silicon dirt, bring difficulty for equipment operation and maintenance; And do hydrogen peroxide bleaching stabilizer with sodium metasilicate, and fabric feeling is poor, and alkali resistance is also poor.Also there are the sodium metasilicate of employing and hydrogen peroxide bleaching stabilizer S to be used at present, to reduce the ill effect that the silicon dirt brings; But hydrogen peroxide bleaching stabilizer S is bad for the metal-chelating effect, because the existence of heavy metal ion (as Fe, Cu, Mn, Ni) has catalytic action to hydrogen peroxide, can quicken the decomposition reaction of local hydrogen peroxide, causes the local damage of fiber.As seen, because the heavy metal ion content height in the linen fibre, by only add hydrogen peroxide bleaching stabilizer in traditional oxygen bleaching process, it is big to solve low, the powerful reduction degree of cheese whiteness, problems such as end breakage rate height, winder efficient difference.
Summary of the invention
Technical problem to be solved by this invention provides a kind of pre-treating method of full-hemp cheese, can effectively heavy metal ion (as Fe, Cu, Mn, Ni) be removed, be the follow-up operation clearance technique obstruction factor of scouringing and bleaching, big to solve low, the powerful reduction degree of cheese whiteness, problems such as end breakage rate height, winder efficient difference.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of pre-treating method of full-hemp cheese, comprise the operation of scouringing and bleaching, before the operation of scouringing and bleaching, set up the destarch operation one, concrete grammar is: 1. cheese is put into destarch cylinder water and embathed 5～10 minutes, and the pH value that adopts conventional method to regulate the water in the destarch cylinder is 5.5～7.5; 2. use a kind of among NEOCRYSTAL150Z or Lu Kuaibao MSD or the good and EMG as desizing agent, use strange sharp imperial F-CE or strange sharp imperial OL as the infiltration scouring agent, concentration according to 1～5g/L adds desizing agent in the destarch cylinder, concentration according to 0.5～1.5g/L adds the infiltration scouring agent in the destarch cylinder, mix the back and form desizing liquid, move 5～10 minutes then; 3. desizing liquid is warmed up to 30～70 ℃ of operations and discharges desizing liquid after 20～40 minutes; 4. remove the residual desizing liquid on the cheese after the destarch clean by washing.
In the described operation of scouringing and bleaching, adopt the single bath process of scouringing and bleaching, concrete grammar is: 1. use strange sharp imperial F-CE or strange sharp imperial OL as the infiltration scouring agent, use the solid SN-S of strange sharp imperial MFB or moral as chelating agent, use than how hard PL or good and EB300 as hydrogen peroxide bleaching stabilizer, in the container of scouringing and bleaching, add the infiltration scouring agent according to concentration 0.3～0.5g/L, in the container of scouringing and bleaching, add chelating agent according to concentration 0.8～1.0g/L, in the container of scouringing and bleaching, add hydrogen peroxide bleaching stabilizer according to concentration 0.8～1.0g/L, mix the back and form the liquid of scouringing and bleaching, the cheese after the destarch is moved 4～6 minutes in the liquid of scouringing and bleaching; 2. the pH value of regulating the liquid of scouringing and bleaching with NaOH is 10.5～11 and adds H according to concentration 1.5～2g/L in the container of scouringing and bleaching
2O
2, move 4～6 minutes then; To scouring and bleaching and move 30～40min after liquid is warmed up to 98～100 ℃ and discharge the liquid of scouringing and bleaching, remove the residual liquid of scouringing and bleaching on the cheese clean by washing.
2. can add brightening agent simultaneously in step according to concentration in the percentage by weight 0.45% of fabric.
Before the destarch operation, can adopt and lead hook-type metal machine and carry out loose yarn, make metal density be controlled at 0.40 ± 0.01g/cm
3Scope in.
Through the full-hemp cheese whiteness height of above-mentioned pre-treatment process processing, and yarn strength and winder efficient can reach requirement.
Compared with prior art, the invention has the advantages that the special desizing of employing before the operation of scouringing and bleaching, can remove the heavy metal (as Fe, Cu, Mn, Ni) in the full-hemp cheese effectively, be the follow-up operation clearance technique obstruction factor of scouringing and bleaching, it is big to have solved low, the powerful reduction degree of cheese whiteness preferably, problems such as end breakage rate height, winder efficient difference; And the special single bath process of scouringing and bleaching of the process using of scouringing and bleaching can further improve the removing effect of heavy metal.Adopt pre-treating method of the present invention, full-hemp cheese after the processing: the whiteness under the D65 light source can reach 70 ~ 130 (improving 5～11% than former technology), strength damage 5～12% (obviously reducing than former technology 20～25%) and winder efficient improve greatly, and the ectonexine difference of dye bobbin yarn also can reach the requirement in the production.
The specific embodiment
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment one: a kind of pre-treating method of full-hemp cheese, and adopt LN24Nm to experimentize, it comprises destarch and two procedures of scouringing and bleaching, concrete grammar is step 1: employing is led hook-type metal machine and is carried out loose yarn, and makes metal density be controlled at 0.40g/cm
3Scope in; Step 2: cheese is put into destarch cylinder water embathed 8 minutes, and the pH value that adopts conventional method to regulate the water in the destarch cylinder is 6.5; Step 3: the concentration according to 3g/L adds commercially available Lu Kuaibao MSD in the destarch cylinder, concentration according to 1g/L adds the commercially available imperial F-CE of strange profit in the destarch cylinder, mix the back and form desizing liquid, operation then (impregnated yarn in the desizing liquid that constantly flows) 8 minutes; Step 4: desizing liquid is warmed up to 50 ℃ of operations (impregnated yarn in the desizing liquid that constantly flows) discharges desizing liquid after 30 minutes; Step 5: remove the residual desizing liquid on the cheese after the destarch clean by washing; Step 6: in the container of scouringing and bleaching, add the imperial OL of commercially available strange profit according to concentration 0.4g/L, in the container of scouringing and bleaching, add the imperial MFB of commercially available strange profit according to concentration 0.9g/L, in the container of scouringing and bleaching, add commercially available EB300 according to concentration 0.9g/L, mix the back and form the liquid of scouringing and bleaching, the cheese after the destarch was moved (impregnated yarn in the liquid of scouringing and bleaching that constantly flows) 5 minutes in the liquid of scouringing and bleaching; Step 7: the pH value of regulating the liquid of scouringing and bleaching with NaOH is 10.8 and adds H according to concentration 1.8g/L in the container of scouringing and bleaching
2O
2, operation then (impregnated yarn in the liquid of scouringing and bleaching that constantly flows) 5 minutes; Step 8: the liquid of scouringing and bleaching was discharged in operation after the liquid of will scouringing and bleaching was warmed up to 99 ℃ after 35 minutes, removed the residual liquid of scouringing and bleaching on the cheese clean by washing.
Full-hemp cheese after the above-mentioned operation of process is handled: whiteness 66.64 under the D65 light source (improving 6～9%) than former technology, strength damage 8～12% (obviously reducing than former technology 20～25%) and winder efficient improve greatly, and the ectonexine difference of dye bobbin yarn can reach production requirement.
Embodiment two: a kind of pre-treating method of full-hemp cheese, and adopt LN28Nm to experimentize, it comprises destarch and two procedures of scouringing and bleaching, concrete grammar is step 1: employing is led hook-type metal machine and is carried out loose yarn, and makes metal density be controlled at 0.41g/cm
3Scope in; Step 2: cheese is put into destarch cylinder water embathed 5 minutes, and the pH value that adopts conventional method to regulate the water in the destarch cylinder is 5.5; Step 3: the concentration according to 1g/L adds commercially available good and EMG in the destarch cylinder, adds the commercially available imperial OL of strange profit according to the concentration of 0.5g/L in the destarch cylinder, mixes the back and forms desizing liquid, operation then (impregnated yarn in the desizing liquid that constantly flows) 5 minutes; Step 4: desizing liquid is warmed up to 30 ℃ of operations discharges desizing liquid after 40 minutes; Step 5: the washing of the cheese after the destarch is clean; Step 6: in the container of scouringing and bleaching, add the imperial F-CE of commercially available strange profit according to concentration 0.3g/L, in the container of scouringing and bleaching, add the solid SN-S of commercially available moral according to concentration 0.8g/L, in the container of scouringing and bleaching, add commercially available according to concentration 1.0g/L than how hard PL, mix the back and form the liquid of scouringing and bleaching, the cheese after the destarch is moved 4 minutes in the liquid of scouringing and bleaching; Step 7: the pH value of regulating the liquid of scouringing and bleaching with NaOH is 10.5 and adds H according to concentration 1.5g/L in the container of scouringing and bleaching
2O
2, and add brightening agent BHT simultaneously according to concentration with the percentage by weight 0.45% of fabric, move 6 minutes then; Step 8: the liquid of scouringing and bleaching was discharged in operation after the liquid of will scouringing and bleaching was warmed up to 98 ℃ after 40 minutes, and the cheese washing is clean.
Full-hemp cheese after the above-mentioned operation of process is handled: whiteness 133.45 under the D65 light source (improving 5～11%) than former technology, strength damage 5～10% (obviously reducing than former technology 20～25%) and winder efficient improve greatly, and the ectonexine difference of dye bobbin yarn has reached the requirement of producing.
Embodiment three: a kind of pre-treating method of full-hemp cheese, and adopt LN28Nm to experimentize, it comprises destarch and two procedures of scouringing and bleaching, concrete grammar is step 1: employing is led hook-type metal machine and is carried out loose yarn, and makes metal density be controlled at 0.39g/cm
3Scope in; Step 2: cheese is put into destarch cylinder water embathed 10 minutes, and the pH value that adopts conventional method to regulate the water in the destarch cylinder is 7.5; Step 3: the concentration according to 5g/L adds commercially available NEOCRYSTAL150Z in the destarch cylinder, adds the commercially available imperial OL of strange profit according to the concentration of 1.5g/L in the destarch cylinder, mixes the back and forms desizing liquid, moves 10 minutes then; Step 4: desizing liquid is warmed up to 70 ℃ of operations discharges desizing liquid after 20 minutes; Step 5: the washing of the cheese after the destarch is clean; Step 6: in the container of scouringing and bleaching, add the imperial F-CE of commercially available strange profit according to concentration 0.5g/L, in the container of scouringing and bleaching, add the solid SN-S of commercially available moral according to concentration 1.0g/L, in the container of scouringing and bleaching, add commercially available according to concentration 0.8g/L than how hard PL, mix the back and form the liquid of scouringing and bleaching, the cheese after the destarch is moved 6 minutes in the liquid of scouringing and bleaching; Step 7: the pH value of regulating the liquid of scouringing and bleaching with NaOH is 11 and adds H according to concentration 2g/L in the container of scouringing and bleaching
2O
2, and add brightening agent BHT simultaneously according to concentration with the percentage by weight 0.45% of fabric, move 4 minutes then; Step 8: the liquid of scouringing and bleaching was discharged in operation after the liquid of will scouringing and bleaching was warmed up to 100 ℃ after 30 minutes, and the cheese washing is clean.
Full-hemp cheese after the above-mentioned operation of process is handled: whiteness 135.25 under the D65 light source (improving 5～11%) than former technology, strength damage 5～10% (obviously reducing than former technology 20～25%) and winder efficient improve greatly, and the ectonexine difference of dye bobbin yarn can reach the requirement in the production.
Said operation all is meant the process of impregnated yarn in continuous flowing liquid in the foregoing of the present invention.
Claims (4)
1. the pre-treating method of a full-hemp cheese, comprise the operation of scouringing and bleaching, it is characterized in that setting up the destarch operation one before the operation of scouringing and bleaching, concrete grammar is: 1. cheese is put into destarch cylinder water and embathed 5～10 minutes, and the pH value that adopts conventional method to regulate the water in the destarch cylinder is 5.5～7.5; 3. use a kind of among NEOCRYSTAL 150Z or Lu Kuaibao MSD or the good and EMG as desizing agent, use strange sharp imperial F-CE or strange sharp imperial OL as the infiltration scouring agent, concentration according to 1～5g/L adds desizing agent in the destarch cylinder, concentration according to 0.5～1.5g/L adds the infiltration scouring agent in the destarch cylinder, mix the back and form desizing liquid, move 5～10 minutes then; 3. desizing liquid is warmed up to 30～70 ℃ of operations and discharges desizing liquid after 20～40 minutes; 4. remove the residual desizing liquid on the cheese after the destarch clean by washing.
2. the pre-treating method of a kind of full-hemp cheese described in claim 1, it is characterized in that in the described operation of scouringing and bleaching, adopting the single bath process of scouringing and bleaching, concrete grammar is: 1. use strange sharp imperial F-CE or strange sharp imperial OL as the infiltration scouring agent, use the solid SN-S of strange sharp imperial MFB or moral as chelating agent, use than how hard PL or good and EB300 as hydrogen peroxide bleaching stabilizer, in the container of scouringing and bleaching, add the infiltration scouring agent according to concentration 0.3～0.5g/L, in the container of scouringing and bleaching, add chelating according to concentration 0.8～1.0g/L, in the container of scouringing and bleaching, add hydrogen peroxide bleaching stabilizer according to concentration 0.8～1.0g/L, mix the back and form the liquid of scouringing and bleaching, the cheese after the destarch is moved 4～6 minutes in the liquid of scouringing and bleaching; 2. the pH value of regulating the liquid of scouringing and bleaching with NaOH is 10.5～11 and adds H according to concentration 1.5～2g/L in the container of scouringing and bleaching
2O
2, move 4～6 minutes then; To scouring and bleaching and move 30～40min after liquid is warmed up to 98～100 ℃ and discharge the liquid of scouringing and bleaching, remove the residual liquid of scouringing and bleaching on the cheese clean by washing.
3. the pre-treating method of a kind of full-hemp cheese described in claim 2 is characterized in that simultaneously adding brightening agent according to the concentration with the percentage by weight 0.45% of fabric in step in 2..
4. according to the pre-treating method of a kind of full-hemp cheese described in the claim 1, it is characterized in that before the destarch operation, adopting and lead hook-type metal machine and carry out loose yarn, make metal density be controlled at 0.40 ± 0.01g/cm
3Scope in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100531650A CN101135094A (en) | 2006-08-28 | 2006-08-28 | Pre-treating method for full-hemp cheese |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100531650A CN101135094A (en) | 2006-08-28 | 2006-08-28 | Pre-treating method for full-hemp cheese |
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| CN101135094A true CN101135094A (en) | 2008-03-05 |
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| CNA2006100531650A Pending CN101135094A (en) | 2006-08-28 | 2006-08-28 | Pre-treating method for full-hemp cheese |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433728A (en) * | 2011-08-22 | 2012-05-02 | 江苏金辰针纺织有限公司 | Fabric bleaching and scouring one-bath method |
| CN103526604A (en) * | 2013-09-18 | 2014-01-22 | 浙江弘盛印染有限公司 | Cheese dyeing technology |
-
2006
- 2006-08-28 CN CNA2006100531650A patent/CN101135094A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433728A (en) * | 2011-08-22 | 2012-05-02 | 江苏金辰针纺织有限公司 | Fabric bleaching and scouring one-bath method |
| CN103526604A (en) * | 2013-09-18 | 2014-01-22 | 浙江弘盛印染有限公司 | Cheese dyeing technology |
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Open date: 20080305 |