CN101899170B - Cotton fibre powder and preparation method thereof - Google Patents
Cotton fibre powder and preparation method thereof Download PDFInfo
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- CN101899170B CN101899170B CN2010101363432A CN201010136343A CN101899170B CN 101899170 B CN101899170 B CN 101899170B CN 2010101363432 A CN2010101363432 A CN 2010101363432A CN 201010136343 A CN201010136343 A CN 201010136343A CN 101899170 B CN101899170 B CN 101899170B
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- cotton
- cotton fibre
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- powder
- fibre powder
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Abstract
The invention discloses cotton fibre powder and a preparation method thereof. The cotton fibre powder overcomes the defects of lignin powder and is prepared by the processes of: utilizing waste products and refining raw materials; oxidizing, decoloring and bleaching; washing and dewatering; acidating, cracking, shrinking and degrading; drying, grinding into powder; measuring, packing and the like. The cotton fibre powder has the properties of optional whiteness (ISO) between 70 and 80 percent, adjustable fineness between 80 and 600 meshes, 0.8 to 1.5 percent of ash content, 6 to 8 percent of water content, the expansion coefficient of 13 to 15, neutral pH value, invariant color in dimethyl formamide, and invariant color and mildewing prevention for long-term storage.
Description
One, technical field: the present invention is relating under environmental protection, the energy-conservation prerequisite, and waste product utilization and oxygen float novel process, and having captured cotton fiber can thin ground technology, especially cotton fibre powder and preparation method.
Two, background technology: cotton fibre powder be a kind of novel high-purity degree, high stability the interpolation pulvis, be widely used in imitation leather, leatherware, rubber, mould industries such as wood, plastics, pottery, papermaking, paint, coating, building; It is the desirable pulvis that substitutes wood powder; The wood powder of domestic enterprise's production at present all contains xylogen because of the reasons such as starting material of working method, technology and employing; Natural resin, ash content be big, contain formaldehyde, cause that the product water-absorbent is big, poor stability, be prone to go mouldy, flavescence easy to change, distortion, ash content and natural gum cause product crisp firmly, be prone to be full of cracks, formaldehyde also causes secondary pollution.Currently overcome these shortcomings, perhaps producing a kind of substitute products is problems anxious to be solved.Selecting " dirt suede " cotton fiber or linters for use is raw material, after being refined into powder, does not contain xylogen, does not contain natural colloid, does not contain the defective that formaldehyde, ash content are low, remedied wood powder, and more wide applications is arranged, and can substitute wood powder fully and serve market.Selected starting material " dirt suede " are that numerous domestic uses cotton as the enterprise of raw materials for production in process of production; The cotton waste that produces is named as " dirt suede " or is " genuine suede "; It contains 60% above cotton fibre enterprise and can't utilize; All discarded as refuse, especially cotton growing area, Xinjiang quantity is very big, and raw material supply is very sufficient.
Three, summary of the invention: the purpose of this invention is to provide a kind of high purity, high stability, low ash content, do not contain cotton fibre powder and preparation method formaldehyde, green, environmental protection; It has overcome the shortcoming that other technology exists; The objective of the invention is to realize like this, it is processed by following operation.
The first step: waste product utilization, feed purification: with " dirt suede " or be " genuine suede ", after the laggard entry of dry method screening impurity elimination is washed the further desanding desilt of shaker, be up to standard, dewatering to cotton fiber contains rate 30%, deposits pool in and gets into subsequent processing decolouring bleaching.At first explanation, the contained fructose of cotton fiber, pectin, pigment can be disposed in oxidation emulsification decolouring, and contained semicellulose can keep; Cotton fiber itself does not contain xylogen; Therefore can not use a large amount of soda ash to carry out high temperature steaming,, handle just reusable a little so water pollution is very light.
Second step: oxidative decoloration bleaching: the cotton fibre that cleans up is joined temperature controllable, and oxidation emulsification decolouring bleaching continuously in the device is floated by the company of adjustable speed, and by metering adds ingredients, auxiliary agent at random from bedding-in side, adds H with cotton fibre matter anharmonic ratio
2O
25-7%, FAS0.1%, sodium laurylsulfonate 1.8%, N
aOH 2-3%, N
aSIO
31.5%, DTPA 0.15%, and material gets into high-order deposit storehouse reaction 2.5-3 hour after being heated to 60 ℃-70 ℃ in the device connecting to float.
In the 3rd step, washing dehydration: get into diluting tank after the oxidized emulsification of cotton fibre is decoloured and bleached and add water washing, the dense pumping of the slurry with 5% gets into water extracter and dewaters to fibre-bearing rate 30% entering subsequent processing.
The 4th step; Acidifying shrinkage crack degraded: the cotton fiber after will dewatering adds the helical stir acidifier and carries out hydroxyl acidifying shrinkage crack degraded; Be metered into 4-6% hydrochloric acid 0.25%OP permeate agent with cotton fibre matter anharmonic ratio, heat to 75 ℃-85 ℃ time spent 40-50 minute; The fracture of cotton fibre macromole is degraded to the 65-75 order, the extremely neutral subsequent processing (acid solution of deviating from is reusable after mixing except that the look filter) that gets into of termination acidifying cracking and depickling washing.
The 5th step; Oven dry: the degraded depickling of will rupture is washed till the neutral cotton fibre and dewaters and to be ground into the particle of maximum 4mm when containing cotton fibre rate 50%; Send into airflow dryer oven dry, transfer 130 ℃ of one section dryer inlet temperatures, 90 ℃-100 ℃ of two sections dryer inlet temperatures; 60 ℃ of discharge port temperature are through the cotton fibre particle water content 6-8% of oven dry.
The 6th step, fine grinding ultrafine powder: by sieving behind the adjustable 80-600 order of customer requirements fine grinding.
The 7th step, metering packing: press customer requirements metering packing.
The resulting high stability of the present invention, its performance of high purity end products " cotton fibre powder ", whiteness (ISO) 70%-85% is optional, fineness 80 orders-600 order is adjustable, ash content 0.8%-1.5%; Moisture 6%-8%; Coefficient of expansion 13-15, pH value is neutral, nondiscoloration in the dimethylformamide; The long-term storage nondiscoloration is not gone mouldy.
Four, embodiment further specifies the present invention in conjunction with following embodiment:
(1) acidifying is cracked into the powder part
1, batching (be called for short batching souring agent), (1) in bigger container with technical hydrochloric acid thin up to 6%, first coarse adjustment, the back chemical examination is harmonized; (2) add permeate agent OP-10 0.25%
2, production technique, (1) charging dewaters the cotton fibre of bleaching washing to fibre-bearing rate 30%, sends in the helical stir acidifier through charging machine, and add-on is amounted to dried cotton fiber 800kg; (2) dosing: be metered into batching souring agent 600kg, be warmed to the 75-85 degree, about 40-50 consuming time minute, inspection by sampling, cotton fiber cracking were to the 65-75 order, and coefficient of expansion 13-15 stops the acidifying cracking; (3) depickling washing: after the high pressure depickling, it is neutral to add water washing to pH value; (4) dehydration: be washed till the neutral cotton fiber and dewater to fiber and contain rate 50%; (5) pulverize: the cotton fiber of fibre-bearing rate 50% is crushed to maximum 4mm particle; (6) oven dry: airflow drying goes out machine water ratio 6-8%; (7) fine grinding becomes powder: the fiber grain of oven dry, not iron content, do not contain colloid, do not contain formaldehyde, key is to have solved the difficult problem that cotton fiber is difficult for being milled to powder.Can satisfy the different demands in market fully.
The textile flower of gained of the present invention fiber mealiness ability: whiteness 70%-85% (ISO) meal is optional, and fineness 80 orders-600 order is optional, ash content 0.8%-1.5%; Moisture 6%-8%, coefficient of expansion 13-15, pH value is neutral; Do not change in the dimethylformamide, the long-term storage nondiscoloration, do not go mouldy.
(8) metering packing.
Claims (8)
1. the preparation method of a cotton fibre powder; It is characterized in that: the first step: with dirt suede or genuine suede; Wash the further desanding desilt of shaker through the laggard entry of dry method screening impurity elimination, back up to standard dehydration, said dirt suede or genuine suede are that numerous domestic uses cotton as the enterprise of raw materials for production in process of production; The cotton waste that produces needn't adopt high temperature alkaline boiling, wet screening, making beating, wet-milling, discongest the operation process; Second step: the cotton fiber of fibre-bearing rate 30% is pressed the cotton fiber mass ratio even floating moving the floating of oxidation emulsification decolouring operation in the device from bedding-in side, be metered into ingredients, auxiliary agent at random, 5-7%H
2O
2, thiourea peroxide 0.1%, sodium laurylsulfonate 1.8%, N
aOH 2-3%, N
A2SiO
31.5%, DTPA0.15%, moving the floating of material operation gets into high-order deposit storehouse after 10 minutes, reacted 2.5-3 hour; The 3rd step: washing dehydration to fibre-bearing rate 30%; The 4th step: get into the helical stir acidifier, once add and amount to dried cotton fibre 800kg, be metered into cotton fibre matter anharmonic ratio and dilute 600 kilograms of 6% hydrochloric acid; 0.25%OP-10 is heated with stirring to 75 ℃-85 ℃, stirs extremely important; Can urge the fast response time, the spiral stirrer 1 cycle per minute clock that revolves round the sun, rotation 55 cycle per minute clocks; Reaction times 40-50 minute, fiber cracking to 65-75 order was ended the acidifying cracking, and negative pressure depickling, washing are to neutral; Water extracter dewaters to fibre-bearing rate 50%, and is ground into the particle of maximum 4mm; The 5th step: get into dryer and carry out two sections oven dry, cotton fiber particle water ratio 6%-8%; The 6th step: fine grinding obtains standard cotton fiber powder; The 7th step: press customer requirements metering packing.
2. the preparation method of the said cotton fibre powder of claim 1 is characterized in that: connect and float the device temperature controllable, adjustable speed moving the floating of operation continuously is metered into H at random
2O
25-7%.
3. the preparation method of the said cotton fibre powder of claim 1 is characterized in that: 60 ℃-70 ℃ of oxidation emulsification decolouring bleaching temperatures, material float that operation is moving in the device floated 10 minutes connecting, and get in the deposit storehouse standing and reacting 2.5-3 hour.
4. the preparation method of the said cotton fibre powder of claim 1 is characterized in that: add oxygen at random and float auxiliary agent thiourea peroxide 0.1%, sodium laurylsulfonate 1.8%, N
aOH 2-3%, N
A2SiO
31.5%, DTPA 0.15%.
5. the preparation method of the said cotton fibre powder of claim 1 is characterized in that: the agitator treating but the depickling of helical stir acidifier negative pressure of vacuum is dewatered, measurable adding batching souring agent.
6. the preparation method of the said cotton fibre powder of claim 1 is characterized in that: once add and amount to dried cotton fiber 800kg, add dilution 6% hydrochloric acid 600kg, 0.25%OP-10.
7. the preparation method of the said cotton fibre powder of claim 1 is characterized in that: stirring heating process 40-50 minute, and 75 ℃-85 ℃ of temperature, the depickling reaction times, endpoint determination cotton fibre acidifying cracking was to the 65-75 order.
8. the cotton fibre powder of the said method preparation of claim 1 is characterized in that: whiteness ISO 70%-85% meal; Fineness 80 orders-600 order; Ash content 0.8%-1.5%; Moisture 6%-8%; Coefficient of expansion 13-15; PH value is neutral; Nondiscoloration in the dimethylformamide; The long-term storage nondiscoloration; Do not go mouldy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101363432A CN101899170B (en) | 2010-03-31 | 2010-03-31 | Cotton fibre powder and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101363432A CN101899170B (en) | 2010-03-31 | 2010-03-31 | Cotton fibre powder and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101899170A CN101899170A (en) | 2010-12-01 |
| CN101899170B true CN101899170B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101363432A Expired - Fee Related CN101899170B (en) | 2010-03-31 | 2010-03-31 | Cotton fibre powder and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081185A (en) * | 1992-07-04 | 1994-01-26 | 苏志刚 | Use technology for producing microcrystalline cellulose with sulfated waste cotton velvet |
| CN101008109A (en) * | 2007-01-24 | 2007-08-01 | 浙江理工大学 | Quick deguming method for cotton stalk peel fiber |
-
2010
- 2010-03-31 CN CN2010101363432A patent/CN101899170B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081185A (en) * | 1992-07-04 | 1994-01-26 | 苏志刚 | Use technology for producing microcrystalline cellulose with sulfated waste cotton velvet |
| CN101008109A (en) * | 2007-01-24 | 2007-08-01 | 浙江理工大学 | Quick deguming method for cotton stalk peel fiber |
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| Publication number | Publication date |
|---|---|
| CN101899170A (en) | 2010-12-01 |
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Granted publication date: 20120905 Termination date: 20130331 |