CN112267153A - Degumming method for ramie - Google Patents
Degumming method for ramie Download PDFInfo
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- CN112267153A CN112267153A CN202011184696.XA CN202011184696A CN112267153A CN 112267153 A CN112267153 A CN 112267153A CN 202011184696 A CN202011184696 A CN 202011184696A CN 112267153 A CN112267153 A CN 112267153A
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- ramie
- scouring
- hemp material
- degumming
- hemp
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- 240000008564 Boehmeria nivea Species 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000009991 scouring Methods 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 43
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 40
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims abstract description 40
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims abstract description 40
- 235000009120 camo Nutrition 0.000 claims abstract description 40
- 235000005607 chanvre indien Nutrition 0.000 claims abstract description 40
- 239000011487 hemp Substances 0.000 claims abstract description 40
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000084 colloidal system Substances 0.000 claims abstract description 14
- 239000012535 impurity Substances 0.000 claims abstract description 13
- 238000005406 washing Methods 0.000 claims abstract description 12
- 238000011221 initial treatment Methods 0.000 claims abstract description 10
- 238000002791 soaking Methods 0.000 claims abstract description 10
- 239000003292 glue Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 7
- 241000894006 Bacteria Species 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 36
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 6
- 235000010265 sodium sulphite Nutrition 0.000 claims description 6
- 238000007670 refining Methods 0.000 claims description 5
- 241000588698 Erwinia Species 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 3
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 3
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 3
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 16
- 239000003513 alkali Substances 0.000 abstract description 8
- 208000005156 Dehydration Diseases 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 238000011282 treatment Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 14
- 239000001913 cellulose Substances 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010306 acid treatment Methods 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 238000010170 biological method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241001649247 Boehmeria Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 241000220221 Rosales Species 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 241000218215 Urticaceae Species 0.000 description 1
- 240000007438 Viola pedata Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 208000018747 cerebellar ataxia with neuropathy and bilateral vestibular areflexia syndrome Diseases 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C1/00—Treatment of vegetable material
- D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Textile Engineering (AREA)
- Enzymes And Modification Thereof (AREA)
- Detergent Compositions (AREA)
Abstract
The invention discloses a ramie degumming method, which comprises the following steps: (1) treating raw ramie to soften the raw ramie into strip-shaped soft ramie; (2) performing primary treatment by using facultative anaerobic degumming bacteria to obtain a primary treatment hemp material; (3) soaking the primary treated hemp material obtained in the step (2) by using sulfuric acid; (4) washing the hemp material with water to remove glue impurities and draining; (5) preparing a scouring solution, and adding the scouring solution for scouring; (6) washing the boiled hemp material with water, removing glue impurities, and draining; (7) washing to remove residual colloid on the hemp material; (8) carrying out dehydration treatment; (9) preparing a scouring solution, and adding the scouring solution for scouring for 2-3 h; (10) cleaning refined hemp material, dewatering, feeding oil and drying. The degumming method for ramie provided by the invention shortens the scouring time, greatly reduces the scouring burden, reduces the alkali consumption, has simple process and can effectively remove the colloid substances in the raw ramie.
Description
Technical Field
The invention relates to the technical field of cloth production and processing, in particular to a ramie degumming method.
Background
China is a big country for producing hemp, and the planting area and the yield of hemp fiber are in the top of the world. In 2007, China has ramie output up to 27.7 ten thousand tons and all ramie reaches 60 ten thousand tons. Ramie is known as Chinese grass internationally, is an important worsted fiber crop next to cotton, and is a unique traditional characteristic crop in China. Ramie (Boehmeria) is also called as wild hemp, domestic hemp, green hemp, white hemp, and belongs to Rosales, Urticaceae, and Ramie. Among various plant fibers, ramie has the best fiber quality, ramie is tough, and the processed textile has a plurality of excellent qualities of antibiosis, sweat absorption, ultraviolet resistance and the like, is popular with consumers, can be used for textile cloth, and is beautiful and durable; the ramie fiber has very high tensile strength and can be used for manufacturing parachutes, twines, canvases and the like; after the ramie fibers are soaked, the ramie fibers have the characteristics of increased strength, corrosion resistance and difficulty in mildewing, so that the ramie fibers can be used for manufacturing rain cloths, fish nets and the like.
The ramie contains not only fibers, but also colloid substances such as hemicellulose, pectin, lignin and the like, and the colloid substances are staggered with the fibers, so that the ramie cannot be used as raw materials for spinning and the like.
Degumming of ramie is usually carried out by chemical methods. The method is characterized in that the method removes the gum impurity component in the raw ramie by utilizing the difference of the stability of the cellulose and the gum component in the raw ramie on the action of alkali, inorganic acid and an oxidant, and retains the cellulose component. In the prior art, the alkali liquor mainly adopts NaOH, the dosage of the NaOH and the type and dosage of the scouring auxiliary agent have great relationship on the removal of colloidal substances in the raw ramie, thereby influencing the quality of the fiber. In the prior art, the use amount of NaOH is large, and the selection and use amount of scouring agent and part of process parameters are not proper, so that the scouring time is long, the degummed fiber quality is poor, even the removal of colloid substances is not clean, and the like, therefore, an ideal ramie degumming method needs to be provided.
Disclosure of Invention
The invention provides a degumming method of ramie, which shortens the scouring time, greatly reduces the scouring burden, reduces the alkali consumption, has simple process and can effectively remove the colloid substances in the raw ramie.
A degumming method of ramie is characterized by comprising the following steps:
(1) drying, removing impurities and rubbing and pressing raw ramie to soften the raw ramie into strip-shaped soft ramie;
(2) performing primary treatment on the soft ramie obtained in the step (1) by using facultative anaerobic degumming bacteria to obtain a primary treatment ramie material;
(3) soaking the primarily treated hemp material obtained in the step (2) by using sulfuric acid, wherein the soaking temperature is 25-30 ℃, and the soaking time is 8-10 h;
(4) washing the hemp material soaked by the sulfuric acid in the step (3) with water to remove glue impurities, and draining;
(5) preparing a scouring solution, putting the hemp material obtained in the step (4) into a scouring pot, adding the scouring solution into the scouring pot for scouring for 2-3 h;
(6) washing the boiled hemp material with water, removing glue impurities, and draining;
(7) washing the hemp material obtained in the step (6) to remove residual colloid on the hemp material;
(8) and (3) dehydrating: dehydrating the hemp material which is washed in the step (7) to ensure that the water content is 45-50%;
(9) preparing a scouring solution, putting the hemp material obtained in the step (8) into a scouring pot, adding the scouring solution for scouring for 2-3 h;
(10) cleaning refined hemp material, dewatering, feeding oil and drying.
In the degumming method for ramie, the facultative anaerobe in the step (2) is preferably Erwinia europaea.
In the above degumming method for ramie, preferably, in the step (3), the concentration of the sulfuric acid is 1.8-2.2 g/L, and the weight ratio of the soft ramie to the sulfuric acid is 1: 10-12;
in the above degumming method for ramie, preferably, in the step (5), the scouring solution comprises 0.07-0.08% of Na2SO3, 0.09-0.11% of sodium tripolyphosphate, 2.1-2.3% of NaOH and water.
In the above degumming method for ramie, preferably, in the step (5), the weight ratio of the hemp material to the scouring liquor is 1: 10-12.
in the above degumming method for ramie, preferably, in step (9), the refining solution includes 0.1% -0.12% of NaOH, 0.12% -0.15% of sodium stearate, 0.08% -0.1% of Na3PO4, 0.08% -0.1% of Na2SO3, 0.02% -0.04% of Na2CO3, and water.
In the above degumming method for ramie, preferably, the weight ratio of the ramie material to the refining liquid in step (9) is 1: 10-12.
the invention has the beneficial effects that: the ramie degumming method provided by the invention utilizes the combination of a biological method and a chemical method, thereby shortening the scouring time. The method firstly uses facultative anaerobic degumming bacteria for primary treatment, and then uses acid treatment to remove part of colloid substances, and greatly reduces the boiling-off burden. In the boiling-off process, the alkali consumption is reduced, the process is simple, and the colloid substances in the raw ramie can be effectively removed.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments.
It must be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include both one and more than one (i.e., two, including two) unless the context clearly dictates otherwise.
Unless otherwise indicated, the numerical ranges in this disclosure are approximate and thus may include values outside of the stated ranges. The numerical ranges may be stated herein as from "about" one particular value, and/or to "about" another particular value.
When such a range is expressed, another aspect includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent "about," it will be understood that the particular value forms another aspect. It will be further understood that the endpoints of each of the numerical ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
Reference in the specification and concluding claims to parts by weight of a particular element or component in a composition or article refers to the weight relationship between that element or component and any other elements or components in the composition or article, expressed as parts by weight.
Unless specifically indicated to the contrary, or implied by the context or customary practice in the art, all parts and percentages referred to herein are by weight and the weight percentages of a component are based on the total weight of the composition or product in which it is included.
References to "comprising," "including," "having," and similar terms in this specification are not intended to exclude the presence of any optional components, steps or procedures, whether or not any optional components, steps or procedures are specifically disclosed. In order to avoid any doubt, all methods claimed through use of the term "comprising" may include one or more additional steps, apparatus parts or components and/or materials unless stated to the contrary. In contrast, the term "consisting of … …" excludes any component, step, or procedure not specifically recited or recited. Unless otherwise specified, the term "or" refers to the listed members individually as well as in any combination.
Furthermore, the contents of any referenced patent or non-patent document in this application are incorporated by reference in their entirety, especially with respect to definitions disclosed in the art (where not inconsistent with any definitions specifically provided herein) and general knowledge.
In the present invention, parts are parts by weight unless otherwise indicated, temperatures are indicated in ° c or at ambient temperature, and pressures are at or near atmospheric. There are many variations and combinations of reaction conditions (e.g., component concentrations, desired solvents, solvent mixtures, temperatures, pressures, and other reaction ranges) and conditions that can be used to optimize the purity and yield of the product obtained by the process. Only reasonable routine experimentation will be required to optimize such process conditions.
Embodiments of the present invention are written in a progressive manner.
The embodiment of the invention provides a ramie degumming method, which comprises the following steps:
a degumming method of ramie is characterized by comprising the following steps:
(1) drying, removing impurities and rubbing and pressing raw ramie to soften the raw ramie into strip-shaped soft ramie;
(2) performing primary treatment on the soft ramie obtained in the step (1) by using facultative anaerobic degumming bacteria to obtain a primary treatment ramie material;
(3) soaking the primarily treated hemp material obtained in the step (2) by using sulfuric acid, wherein the soaking temperature is 25-30 ℃, and the soaking time is 8-10 h;
(4) washing the hemp material soaked by the sulfuric acid in the step (3) with water to remove glue impurities, and draining;
(5) preparing a scouring solution, putting the hemp material obtained in the step (4) into a scouring pot, adding the scouring solution into the scouring pot for scouring for 2-3 h;
(6) washing the boiled hemp material with water, removing glue impurities, and draining;
(7) washing the hemp material obtained in the step (6) to remove residual colloid on the hemp material;
(8) and (3) dehydrating: dehydrating the hemp material which is washed in the step (7) to ensure that the water content is 45-50%;
(9) preparing a scouring solution, putting the hemp material obtained in the step (8) into a scouring pot, adding the scouring solution for scouring for 2-3 h;
(10) cleaning refined hemp material, dewatering, feeding oil and drying.
In the prior art, degumming of ramie is generally carried out by chemical methods. The method is characterized in that the method removes the gum impurity component in the raw ramie by utilizing the difference of the stability of the cellulose and the gum component in the raw ramie on the action of alkali, inorganic acid and an oxidant, and retains the cellulose component. In the prior art, the alkali liquor mainly adopts NaOH, the dosage of the NaOH and the type and dosage of the scouring auxiliary agent have great relationship on the removal of colloidal substances in the raw ramie, thereby influencing the quality of the fiber. In the prior art, the use amount of NaOH is large, and the selection and use amount of scouring agent and part of process parameters are not proper, so that the scouring time is long, the degummed fiber quality is poor, even the removal of colloid substances is not clean, and the like, therefore, an ideal ramie degumming method needs to be provided.
The ramie degumming method provided by the invention utilizes the combination of a biological method and a chemical method, thereby shortening the scouring time. The method firstly uses facultative anaerobic degumming bacteria for primary treatment, and then uses acid treatment to remove part of colloid substances, and greatly reduces the boiling-off burden. In the boiling-off process, the alkali consumption is reduced, the process is simple, and the colloid substances in the raw ramie can be effectively removed.
In the degumming method for ramie provided by the embodiment of the invention, as a preferable scheme, the facultative anaerobe in the step (2) is preferably erwinia europaea.
According to the degumming method for ramie provided by the embodiment of the invention, as a preferable scheme, in the step (3), the concentration of sulfuric acid is preferably 1.8-2.2 g/L, and the weight ratio of the soft ramie to the sulfuric acid is preferably 1: 10-12;
according to the degumming method for ramie provided by the embodiment of the invention, as a preferable scheme, in the step (5), the scouring liquid comprises 0.07-0.08% of Na2SO3, 0.09-0.11% of sodium tripolyphosphate, 2.1-2.3% of NaOH and water.
According to the degumming method for ramie provided by the embodiment of the invention, as a preferable scheme, in the step (5), the weight ratio of the ramie material to the scouring liquid is 1: 10-12.
according to the degumming method for ramie provided by the embodiment of the invention, as a preferable scheme, in the step (9), the refining liquid comprises 0.1% -0.12% of NaOH, 0.12% -0.15% of sodium stearate, 0.08% -0.1% of Na3PO4, 0.08% -0.1% of Na2SO3, 0.02% -0.04% of Na2CO3 and water.
According to the degumming method for ramie provided by the embodiment of the invention, as a preferable scheme, the weight ratio of the ramie material to the refining liquid in the step (9) is 1: 10-12.
the ramie degumming method provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. A degumming method of ramie is characterized by comprising the following steps:
(1) drying, removing impurities and rubbing and pressing raw ramie to soften the raw ramie into strip-shaped soft ramie;
(2) performing primary treatment on the soft ramie obtained in the step (1) by using facultative anaerobic degumming bacteria to obtain a primary treatment ramie material;
(3) soaking the primarily treated hemp material obtained in the step (2) by using sulfuric acid, wherein the soaking temperature is 25-30 ℃, and the soaking time is 8-10 h;
(4) washing the hemp material soaked by the sulfuric acid in the step (3) with water to remove glue impurities, and draining;
(5) preparing a scouring solution, putting the hemp material obtained in the step (4) into a scouring pot, adding the scouring solution into the scouring pot for scouring for 2-3 h;
(6) washing the boiled hemp material with water, removing glue impurities, and draining;
(7) washing the hemp material obtained in the step (6) to remove residual colloid on the hemp material;
(8) and (3) dehydrating: dehydrating the hemp material which is washed in the step (7) to ensure that the water content is 45-50%;
(9) preparing a scouring solution, putting the hemp material obtained in the step (8) into a scouring pot, adding the scouring solution for scouring for 2-3 h;
(10) cleaning refined hemp material, dewatering, feeding oil and drying.
2. The degumming process for ramie according to claim 1, wherein said facultative anaerobe in step (2) is Erwinia europaea.
3. The degumming method for ramie according to claim 1, wherein in step (3), the concentration of sulfuric acid is 1.8-2.2 g/L, and the weight ratio of soft ramie to sulfuric acid is 1: 10-12.
4. the degumming method for ramie according to claim 1, wherein in step (5), the scouring solution comprises 0.07-0.08% of Na2SO3, 0.09-0.11% of sodium tripolyphosphate, 2.1-2.3% of NaOH and water.
5. The degumming method for ramie according to claim 1, wherein in step (5), the weight ratio of the hemp material to the scouring liquor is 1: 10-12.
6. the degumming method for ramie according to claim 1, wherein in step (9), the scouring solution comprises 0.1-0.12% of NaOH, 0.12-0.15% of sodium stearate, 0.08-0.1% of Na3PO4, 0.08-0.1% of Na2SO3, 0.02-0.04% of Na2CO3 and water.
7. The degumming method for ramie according to claim 1, wherein the weight ratio of the ramie material to the refining liquid in step (9) is 1: 10-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011184696.XA CN112267153A (en) | 2020-10-29 | 2020-10-29 | Degumming method for ramie |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011184696.XA CN112267153A (en) | 2020-10-29 | 2020-10-29 | Degumming method for ramie |
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| CN112267153A true CN112267153A (en) | 2021-01-26 |
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| CN202011184696.XA Pending CN112267153A (en) | 2020-10-29 | 2020-10-29 | Degumming method for ramie |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624213A (en) * | 2004-12-10 | 2005-06-08 | 湖南农业大学 | Physical degumming method of ramie |
| CN101550606A (en) * | 2008-04-01 | 2009-10-07 | 湖南逐鹿苎麻纺织有限公司 | Ramie degumming method utilizing a complex enzyme preparation |
| CN104630906A (en) * | 2015-01-28 | 2015-05-20 | 四川玉竹麻业有限公司 | Ramie degumming boiling-out liquid |
| CN104630907A (en) * | 2015-01-28 | 2015-05-20 | 四川玉竹麻业有限公司 | Ramie degumming refining technology |
| CN110453294A (en) * | 2019-08-23 | 2019-11-15 | 北京知淘科技有限责任公司 | A kind of preparation method of high branch textile fabric ramee |
-
2020
- 2020-10-29 CN CN202011184696.XA patent/CN112267153A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624213A (en) * | 2004-12-10 | 2005-06-08 | 湖南农业大学 | Physical degumming method of ramie |
| CN101550606A (en) * | 2008-04-01 | 2009-10-07 | 湖南逐鹿苎麻纺织有限公司 | Ramie degumming method utilizing a complex enzyme preparation |
| CN104630906A (en) * | 2015-01-28 | 2015-05-20 | 四川玉竹麻业有限公司 | Ramie degumming boiling-out liquid |
| CN104630907A (en) * | 2015-01-28 | 2015-05-20 | 四川玉竹麻业有限公司 | Ramie degumming refining technology |
| CN110453294A (en) * | 2019-08-23 | 2019-11-15 | 北京知淘科技有限责任公司 | A kind of preparation method of high branch textile fabric ramee |
Non-Patent Citations (1)
| Title |
|---|
| 魏玉娟: "《纺织应用化学》", 31 May 2007, 中国纺织出版社 * |
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Application publication date: 20210126 |