CN1152038A

CN1152038A - Method of making plant fibre

Info

Publication number: CN1152038A
Application number: CN 95120629
Authority: CN
Inventors: 鞠馥阳
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-10
Filing date: 1995-12-10
Publication date: 1997-06-18

Abstract

With rice straw, wheat straw, reed, tobacco stalks and other crop leftover as material and through the technological processes of soaking, basification, beating, rinse, acidification, bleaching, soap dissolution, oiling, drying, carding, etc., flocculent plant cotton is produced. The present invention may be used as the material for producing nitrocellulose, CMC, ethoxyl cellulose, hydroxypropionic cellulose, microcrystalline cellulose and other polymer products.

Description

The method for production of plant cotton

The present invention is that a kind of stem with plant, bar are made raw material, manufactures the method for plant cotton.

Cotton is except that makeing cotton dress, cotton-wadded quilt for people's resisting cold, be as the important raw material of industry in large quantities, as produce macromolecule series product carboxymethyl cellulose, hydroxyethylcellulose etc., even process sanltary towel, weave a gunnysack or knit special with used long-staple cotton, refined cotton linters such as coarse cloth, also be that raw material is made with the cotton, sharp increase along with global population, the minimizing year by year of arable area, output of cotton has not satisfied people's demand, is badly in need of finding a kind of new raw material that can substitute cotton.

The objective of the invention is to, it is the method that raw material is manufactured plant cotton that a kind of cane with plants such as straw, reed, wheat straw, flue-cured tobacco bar or plant is provided.

The present invention can realize with following mode:

Choose straw, reed, wheat straw, raw materials such as flue-cured tobacco bar, remove slightly, the root joint, be cut into broken section, the first step is soaked material, with concentration is the soaking in sodium carbonate solution material section of 1-8%, pull out after 30-40 minute, the moisture in the material section is removed in extruding, the second step basification, caustic soda solution submergence material section with 4-8%, heat, temperature is at 30-60 ℃, stir evenly, pull out after 40 minutes, squeeze lixiviating liquid, the 3rd step was beaten kneading, loose to fiber, soft, the 4th step rinsing, wash with clear water, turn white to water and to be neutral, the 5th step acidification, fiber after the rinsing is dipped in the sulfuric acid solution of 0.2-0.4%, after 20-30 minute, the hydrochloric acid of 0.01-0.05% reinjects, be used to remove irony wherein, then with mobile clear water rinsing to being neutral, squeeze the water purification branch, the 6th one-Step bleach, be mixed with the bleaching fluid that concentration is 1-3% with bleaching powder, adding the salt of solution weight 1-4% and the Xiao Su of 1-2% again reaches, promptly be made into bleaching liquid, input accounts for the fiber of the crowded water purification branch of bleaching liquid weight 30-42%, inject simultaneously and account for solution weight 1-3%, concentration is pulled fiber out at the technical hydrochloric acid of 13-15% after the bleaching, with extracting moisture after the clear water rinsing, again for the second time with same technology bleaching, for the third time, the 7th step soap is molten, and the soap solution with neutral soap compound concentration is 1-3% drops into the fiber after the bleaching in the soap solution, be heated to 30-60 ℃, be incubated 10-15 minute, fiber is pulled in cooling naturally out then, clean soap lye with clear water, the 8th step was carried out the oiling processing to fiber, will account for the turkey red oil of weight ratio 1-3%, the concentrated sulfuric acid of 0.1-0.5%, the clear water of 80-97% is put into the oiling pond simultaneously, stirs, become the milkiness shape, fiber soap after molten drops into the oiling pond, pulls out after 10-12 hour, squeezes absolute oil liquid, the 9th step was dried the moisture 10-15% that do not exceed with fiber, the tenth step will dry good fiber and be combed bullet repeatedly, and extremely loose one-tenth is cotton-shaped, the finished product plant cotton.

The present invention utilizes wastes of crops such as straw, wheat straw, flue-cured tobacco bar, reed, output plant cotton product in eight hours, industrial chemicals less investment, technology is simple, with low cost, can go out long, in, three kinds of industry of short flannel are cotton, have remedied the deficiency of cottonizing demand in the industrial production.

Embodiment 1:

Choose new raw materials such as straw, reed, wheat straw, flue-cured tobacco bar then, remove slightly, root joint, be cut into broken section of 4-6 centimetre with hay cutter, processing as follows then, the first step is soaked material, is 1% soaking in sodium carbonate solution 30 minutes with concentration, drag for discharging section, 80% moisture is removed in extruding; Second goes on foot basification, is dewatered material section concentration caustic soda solution submergence in the alkalization pond of 4%, heats, and temperature is stirred evenly at 30 ℃, pulls out after 40 minutes, squeezes lixiviating liquid; The 3rd step beat, mediates the material section with kneader, and is loose, soft to fiber; The 4th step was put into rinsing bath through the material section of mediating after beating, and used the clear water washing of flowing, and turning white to washings is neutral; The 5th step was carried out acidification in the acidleach pond, the fiber after the rinsing was dipped in the sulfuric acid solution of 0.2% concentration, after 20 minutes, the concentration of reinjecting is 0.01% hydrochloric acid, is used to remove irony wherein, is beneficial to bleaching, then with mobile clear water rinsing to being neutral, squeeze the moisture in the clean fiber; It is 1% bleaching fluid that the 6th step earlier was mixed with concentration with bleaching powder, add the salt of solution weight 1% and 1% Xiao Su again and reach, promptly be made into bleaching liquid, solution set aside 30 minutes, after treating fully dissolving, input accounts for the fiber that the crowded water purification of bleaching liquid weight 30% divides, and injects simultaneously to account for solution weight 1%, and concentration is at 13% technical hydrochloric acid, pull fiber after the bleaching out, after the clear water rinsing, extract moisture, bleach, clean, extract moisture again with same technology then and do for the second time, for the third time; It is molten that the 7th step was carried out soap, is earlier 1% soap solution with neutral soap compound concentration, and the fiber after will bleaching again drops in the soap solution pot, is heated to 30 ℃, is incubated 10 minutes, cools off 40 minutes naturally then, pulls fiber out, with the soap solution on the clean fiber of clear water; The 8th step carried out oiling to fiber and handles, and was that 1% turkey red oil, 0.1% the concentrated sulfuric acid, 80% clear water are put into the oiling pond simultaneously with accounting for weight ratio, stirred, become the milkiness shape, fiber soap after molten drops into the oiling pond, pulls out after 10 hours, squeezes absolute oil liquid; The 9th step dried moisture with the fiber behind the oiling and does not exceed 10%; The tenth step will dry good fiber comb bullet repeatedly on cotton fluffer, and extremely loose one-tenth is cotton-shaped, the finished product plant cotton.

Embodiment 2:

Choose wheat straw, go slightly, root joint, be cut into 6 centimeters broken section after processing as follows, the first step is put into the soaking in sodium carbonate solution 40 minutes of 8% concentration to broken section of wheat straw, and it is cylindric that wheat straw becomes, and color is by light yellow when deepening yellow, pull out and the pressing material section, remove in the material section 80% moisture; Second step with the caustic soda solution submergence material section of 8% concentration, heated in the alkalization pond, and temperature is stirred at 60 ℃, pulled out after 40 minutes, squeezed lixiviating liquid, fiber separation at this moment, not needle-holding hand; The 3rd step was beaten the material section, and is loose, soft to fiber; The 4th step is with the clear water washing the fibre that flows, and turning white to washings is neutral, is using water wisely, the containing alkali lye and can return multiplexing of preceding secondary; The 5th step was done acidification to the fiber after cleaning, and fiber was dipped in 0.4% the sulfuric acid solution, and after 30 minutes, the concentration of reinjecting is 0.05% hydrochloric acid, removes the irony in the fiber, is beneficial to bleaching, then with mobile clear water rinsing to being neutrality, crowded water purification branch; It is 3% bleaching fluid that the 6th step earlier was mixed with concentration with bleaching powder, add again and account for the salt of solution weight 4% and 2% Xiao Su reaches, promptly be made into bleaching liquid, solution set aside 30 minutes is put into the fiber that the crowded water purification that accounts for bleaching liquid weight 42% divides, inject simultaneously and account for solution weight 3%, concentration is at 15% technical hydrochloric acid, through the fiber of bleaching, after the clear water rinsing, extract moisture, bleach again for the second time, for the third time with same technology then; The 7th step soap is molten, is earlier 3% soap solution with neutral soap compound concentration, and the fiber of extracting moisture after will bleaching again drops in the soap solution pot, is heated to 60 ℃, is incubated 15 minutes, and fiber is pulled in cooling out naturally, with the soap solution on the clean fiber of clear water; The 8th step carried out oiling to fiber and handles, and was that 3% turkey red oil, 0.5% the concentrated sulfuric acid, 97% clear water are put into the oiling pond simultaneously with accounting for weight ratio, stirred, become the milkiness shape, fiber soap after molten drops into the oiling pond, pulls out after 12 hours, squeezes absolute oil liquid; The 9th step dried moisture with the fiber behind the oiling and does not exceed 15%; The tenth step will dry good fiber comb bullet repeatedly on cotton fluffer, and extremely loose one-tenth is cotton-shaped, the finished product plant cotton.

Claims

1, a kind of method for production of plant cotton, choose straw, reed, wheat straw, raw materials such as flue-cured tobacco bar, remove slightly, the root joint, be cut into broken section, the first step is soaked material, with concentration is the soaking in sodium carbonate solution material section of 1-8%, pull out after 30-40 minute, the moisture in the material section is removed in extruding, the second step basification, caustic soda solution submergence material section with 4-8%, heat, temperature is at 30-60 ℃, stir evenly, pull out after 40 minutes, squeeze lixiviating liquid, the 3rd step was beaten kneading, loose to fiber, soft, the 4th step rinsing, wash with clear water, turn white to water and to be neutral, the 5th step acidification, fiber after the rinsing is dipped in the sulfuric acid solution of 0.2-0.4%, after 20-30 minute, the hydrochloric acid of 0.01-0.05% reinjects, be used to remove irony wherein, then with mobile clear water rinsing to being neutral, squeeze the water purification branch, the 6th one-Step bleach, be mixed with the bleaching fluid that concentration is 1-3% with bleaching powder, add the salt of solution weight 1-4% and the Xiao Su of 1-2% again and reach, promptly be made into bleaching liquid, drop into the fiber of the crowded water purification branch that accounts for bleaching liquid weight 30-42%, inject simultaneously and account for solution weight 1-3%, concentration is pulled fiber out at the technical hydrochloric acid of 13-15% after the bleaching, after the clear water rinsing, extract moisture, again with same technology bleaching, for the second time, for the third time, the 7th step soap is molten, with the neutral soap compound concentration soap solution that is 1-3%, fiber after the bleaching is dropped in the soap solution, be heated to 30-60 ℃, be incubated 10-15 minute, naturally cooling then, pull fiber out, clean soap lye with clear water, the 8th step carried out oiling to fiber and handles, the turkey red oil of weight ratio 1-3% will be accounted for, the concentrated sulfuric acid of 0.1-0.5%, the clear water of 80-97% is put into the oiling pond simultaneously, stir, become the milkiness shape, the fiber soap after molten drops into the oiling pond, pull out after 10-12 hour, squeeze absolute oil liquid, the 9th step was dried the moisture 10-15% that do not exceed with fiber, and the tenth step will dry the fiber of getting well and be combed bullet repeatedly, to loose one-tenth cotton-shaped, the finished product plant cotton.