US2041868A - Treating textile material and product thereof - Google Patents
Treating textile material and product thereof Download PDFInfo
- Publication number
- US2041868A US2041868A US616573A US61657332A US2041868A US 2041868 A US2041868 A US 2041868A US 616573 A US616573 A US 616573A US 61657332 A US61657332 A US 61657332A US 2041868 A US2041868 A US 2041868A
- Authority
- US
- United States
- Prior art keywords
- fabric
- pile
- cellulose
- degumming
- yarn
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000000463 material Substances 0.000 title description 8
- 239000004753 textile Substances 0.000 title description 6
- 239000004744 fabric Substances 0.000 description 35
- 229920002678 cellulose Polymers 0.000 description 21
- 239000001913 cellulose Substances 0.000 description 21
- 150000003839 salts Chemical class 0.000 description 16
- 229920002301 cellulose acetate Polymers 0.000 description 13
- 238000005054 agglomeration Methods 0.000 description 12
- 230000002776 aggregation Effects 0.000 description 12
- 238000011282 treatment Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 5
- 150000001242 acetic acid derivatives Chemical class 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 150000003841 chloride salts Chemical class 0.000 description 5
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 150000002823 nitrates Chemical class 0.000 description 5
- 239000011591 potassium Substances 0.000 description 5
- 229910052700 potassium Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- 239000008149 soap solution Substances 0.000 description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 description 4
- 235000011152 sodium sulphate Nutrition 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 3
- 229910000397 disodium phosphate Inorganic materials 0.000 description 3
- 235000019800 disodium phosphate Nutrition 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 159000000011 group IA salts Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 150000002895 organic esters Chemical class 0.000 description 3
- 239000001488 sodium phosphate Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 229920013683 Celanese Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
- 229910000396 dipotassium phosphate Inorganic materials 0.000 description 1
- 235000019797 dipotassium phosphate Nutrition 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229960004793 sucrose Drugs 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
Definitions
- This invention relates to the treatment of teatile materials made of or containing organic dcrivatives of cellulose and relates more particularly to the treatment of such materials with hot aqueous fluids.
- An object of my invention is to protect textile materials comprising organic derivatives of cellulose against impairment of desirable properties when subjected to hot aqueous fluids.
- a further object of my invention is to diminish or prevent v the tendency of pile of organic derivative of cellulose yarn to agglomerate when fabric having a pile of organic derivatives of cellulose yarn is subjected to hot aqueous liquids.
- Fabrics having a pile made of yarn of cellulose acetate .or other organic derivative of cellulose present serious difliculties when subjected to fin- 'ishing treatments such as dyeing, scotuing, de-
- the textile material may contain or be made of any suitable organic derivative of cellulose such as organic esters of cellulose and cellulose others.
- organic esters of cellulose L will be described more specifically in connection with the treatment of textile mate- 10 rials made of or containing the acetone-soluble type of cellulose acetate. If an acetone-soluble cellulose acetate of relatively high acetyl value, say 5'7 to 59% determined as acetic acid, is employed in making the textile material, particu- 15 larly good results are obtained due to the greater resistance of such cellulose acetate to the agglomerating action of hot aqueous liquids.
- the degumming bath employed may be the usual soap solutions used for this purpose and usually the temperature of degumming will be on the order of 90 to 100 C.
- Any suitable readily ionizable salt may be employed to prevent agglomeration of the organic derivative of cellulose yarn.
- suitable readily ionizable salt examples include the sulfates, chlorides, nitrates, chromates and acetates of sodium, potassium, magnesium, ammonium or aluminum.
- the amount of these salts present will vary with the specific salt used, the temperature of treatment and other considerations. Generally the salts will be present in the aqueous liquid in a concentration of 0.5 to 10%. Materials other than salts may be used for this purpose, an example of which is cane sugar;
- the ionizable salts tend to reduce the alkalinity of the soap solutions used for degumming and therefore diminish the power of the bath to degum the natural silk
- Alkalies or strongly alkaline salts such as sodium hydroxide, potassium hydroxide, sodium carbonate or potassium carbonate may be used for this purpose, but in order to render possible a more delicate control of the alkalinity, I prefer to use less strongly alkaline salts such as disodium phosphate, dipotassium phosphate or borax.
- pile fabric such as velvets
- gumming, etc., that contain these salts-or substances is of great importance not only in the case where degumming of the natural silk yarn present in the backing of such fabric is to occur, but is of importance in the treatments of all kinds of fabric having a pile of organic derivative of cellulose yarn, whether the backing is also made of organic derivative of cellulose or whether it is made of silk, cotton, regenerated cellulose, wool or any other fibres.
- the presence of these salts prevents the agglomeration of the pile into tufts and consequent formation of bald spots in such fabric.
- Example 1 is given as illustrating the use of my invention for both degumming of natural silk in a mixed natural silk and cellulose acetate fabric and also for protecting the cellulose acetate pile against agglomeration.
- a degumming bath is made up containing:
- a velvet having a pile made of yarn of acetonesoluble cellulose acetate and a back of natural silk in the gum is treated with this degummingbath at a temperature of 93 to 100 C., say C., for 1 to 2 hours.
- the fabric is then subjected to any desired finishing treatment such as washing, dyeing, steaming, etc.
- the silk is completely degummed, and yetthe cellulose acetate pile is free of agglomeration and the fabric presents a uniform lustre or sheen.
- Process for degumming natural silk contained in a pile fabric which comprises subjecting a fabric having a back containing natural silk yarn and a pile containing organic derivative of cellulose yarn to the action of a hot degumming bath, which bath contains a readily ionizable salt selected from the group consisting of the sulfates, chlorides, nitrates, chromates and acetates of sodium, potassium, magnesium, am-
- Process for degumming natural silk contained in a pile fabric which comprises subjecting a fabric having a back containing natural silk yarn and a pile containing cellulose acetate yarn to the'action of a hot degumming bath. which bath contains a readily ionizable salt selected from the group consisting of the sulfates, chlorides, nitrates, chromates and acetates of sodium, potassium, magnesium, ammonium and aluminum, whereby agglomeration of the pile of the fabric is prevented.
- Process for degumming natural silk contained in a pile fabric which comprises subjecting a fabric having a back containing natural silk yarn and a pile containing organic derivative of cellulose yarn to the action of a hot degumming bath, which bath contains a readily ionizable salt selected from the group consisting of the sulfates, chlorides, nitrates, chromates and acetates of sodium, potassium, magnesium, ammonium and aluminum in a concentration of at least 0.5%, whereby agglomeration of the pile of the fabric is prevented.
- Process for degumming natural silk contained in a pile fabric which comprises subjecting a fabric having a back containing natural silk yarn and a pile containing cellulose acetate yarn to the action of a hot degumming bath, which bath contains a readily ionizable salt selected from the group consisting of the sulfates, chlorides, nitrates, chromates and acetates of sodium, potassium, magnesium, ammonium and aluminum in a concentration of at least 0.5%, whereby agglomeration of the pile of the fabric is prevented.
- Process for degumming natural silk contained in a pile fabric which comprises subjecting a. fabric having a back containing natural silk yarn and a pile containing organic derivative of cellulose yarn to the action of a hot degumming bath, which bath contains sodium sulfate, whereby agglomeration of the pile of the fabric is prevented.
- Process for degumming natural silk 'contained in a pile fabric which comprises subjecting a fabric having a back containing natural silk .yarn and a pile containing cellulose acetate yarn to the action of a hot degumming bath, which bath contains sodium sulfate, whereby agglomeration of the pile of the fabric is prevented.
- Process for degumming natural silk contained in a pile fabric which comprises subjecting a fabric having a back containing natural silk yarn and a pile containing cellulose acetate yarn to the action of a hot degumming bath, which bath contains sodium sulfate and disodium phosphate, whereby agglomeration of the pile of the fabric is prevented.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Woven Fabrics (AREA)
- Coloring (AREA)
Description
Patented May 26, 1936 TREATING TEXTILE MATERIAL AND PRODUCT THEREOF George Schneider; Montclair, N. J... assignor to Celanese Corporation of America, a. corporation of Delaware No Drawing. Application .l'une llll, i932, Serial No. 616,573
- '1 Claims.
This invention relates to the treatment of teatile materials made of or containing organic dcrivatives of cellulose and relates more particularly to the treatment of such materials with hot aqueous fluids.
An object of my invention is to protect textile materials comprising organic derivatives of cellulose against impairment of desirable properties when subjected to hot aqueous fluids. A further object of my invention is to diminish or prevent v the tendency of pile of organic derivative of cellulose yarn to agglomerate when fabric having a pile of organic derivatives of cellulose yarn is subjected to hot aqueous liquids. Other objects of this invention will appear from the following de tailed description.
Fabrics having a pile made of yarn of cellulose acetate .or other organic derivative of cellulose present serious difliculties when subjected to fin- 'ishing treatments such as dyeing, scotuing, de-
gumming, etc. which involve treatment with hot A is avoided, thusmaking possible the finishing of fabric made of organic derivative of cellulose pile 35 to form a fabric having substantially uniform sheen.
I have further found that if such neutral salts are present in a bath employed to degum the natural silk in a mixed fabric containing both 40 organic derivative of cellulose yarn and natural silk yarn, they protect the organic derivative of cellulose yarn .against the deleterious action of the hot soap solutions employed for the degumming.
45 In accordance with one aspect of my invention, I treat fabrics containing both yarns of organic derivative of cellulose and natural silk yarns in the gum at elevated temperatures with a. degumming bath containing a readily ionizable salt or 50 other compound. In accordance with another aspect of my invention, I treat fabric having a pile made of yarns of organic derivative of cellulose with hot aqueous baths containing such salts or compounds, in order to avoid the agglomeration 65 of the pile into tufts.
The textile material may contain or be made of any suitable organic derivative of cellulose such as organic esters of cellulose and cellulose others. Examples of organic esters of cellulose L however will be described more specifically in connection with the treatment of textile mate- 10 rials made of or containing the acetone-soluble type of cellulose acetate. If an acetone-soluble cellulose acetate of relatively high acetyl value, say 5'7 to 59% determined as acetic acid, is employed in making the textile material, particu- 15 larly good results are obtained due to the greater resistance of such cellulose acetate to the agglomerating action of hot aqueous liquids.
-The degumming bath employed may be the usual soap solutions used for this purpose and usually the temperature of degumming will be on the order of 90 to 100 C.
Any suitable readily ionizable salt may be employed to prevent agglomeration of the organic derivative of cellulose yarn. Examples of such salts are the sulfates, chlorides, nitrates, chromates and acetates of sodium, potassium, magnesium, ammonium or aluminum. The amount of these salts present will vary with the specific salt used, the temperature of treatment and other considerations. Generally the salts will be present in the aqueous liquid in a concentration of 0.5 to 10%. Materials other than salts may be used for this purpose, an example of which is cane sugar;
Since the ionizable salts tend to reduce the alkalinity of the soap solutions used for degumming and therefore diminish the power of the bath to degum the natural silk, I prefer to add such an amount of alkali or alkaline salt to the 40 soap solution containing these salts as to impart to it the degree of alkalinity of soap baths ordinarily used for degumming natural silk and having a pH value of above 8 and preferably below 10, when yarns of cellulose acetate or other organic esters of cellulose are present and it is desired to avoid substantial saponiflcation of the same. By raising the degree of alkalinity of the degumming bath in this manner, the time required for degumming is reduced. .Alkalies or strongly alkaline salts such as sodium hydroxide, potassium hydroxide, sodium carbonate or potassium carbonate may be used for this purpose, but in order to render possible a more delicate control of the alkalinity, I prefer to use less strongly alkaline salts such as disodium phosphate, dipotassium phosphate or borax.
The treatment of pile fabric such as velvets by subjecting the same to hot finishing baths,
such as are employed in dyeing, scouring, de-
gumming, etc., that contain these salts-or substances is of great importance not only in the case where degumming of the natural silk yarn present in the backing of such fabric is to occur, but is of importance in the treatments of all kinds of fabric having a pile of organic derivative of cellulose yarn, whether the backing is also made of organic derivative of cellulose or whether it is made of silk, cotton, regenerated cellulose, wool or any other fibres. The presence of these salts prevents the agglomeration of the pile into tufts and consequent formation of bald spots in such fabric.
In order further to illustrate my invention, but without being limited thereto, the following specific example is given.
Example This example is given as illustrating the use of my invention for both degumming of natural silk in a mixed natural silk and cellulose acetate fabric and also for protecting the cellulose acetate pile against agglomeration.
A degumming bath is made up containing:
Grams per litre Olive oil soap 50 Disodium phosphate (Na2I-IPO4.12H2O) 25 Sodium sulfate (anhydrous) 25 A velvet having a pile made of yarn of acetonesoluble cellulose acetate and a back of natural silk in the gum is treated with this degummingbath at a temperature of 93 to 100 C., say C., for 1 to 2 hours. The fabric is then subjected to any desired finishing treatment such as washing, dyeing, steaming, etc. The silk is completely degummed, and yetthe cellulose acetate pile is free of agglomeration and the fabric presents a uniform lustre or sheen.
It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the spirit of my invention.
Having described my invention, what I desire to secure by Letters Patent is: 4
1. Process for degumming natural silk contained in a pile fabric, which comprises subjecting a fabric having a back containing natural silk yarn and a pile containing organic derivative of cellulose yarn to the action of a hot degumming bath, which bath contains a readily ionizable salt selected from the group consisting of the sulfates, chlorides, nitrates, chromates and acetates of sodium, potassium, magnesium, am-
monium and aluminum, whereby agglomeration of the pile of the fabric is prevented.
2. Process for degumming natural silk contained in a pile fabric, which comprises subjecting a fabric having a back containing natural silk yarn and a pile containing cellulose acetate yarn to the'action of a hot degumming bath. which bath contains a readily ionizable salt selected from the group consisting of the sulfates, chlorides, nitrates, chromates and acetates of sodium, potassium, magnesium, ammonium and aluminum, whereby agglomeration of the pile of the fabric is prevented.
3. Process for degumming natural silk contained in a pile fabric, which comprises subjecting a fabric having a back containing natural silk yarn and a pile containing organic derivative of cellulose yarn to the action of a hot degumming bath, which bath contains a readily ionizable salt selected from the group consisting of the sulfates, chlorides, nitrates, chromates and acetates of sodium, potassium, magnesium, ammonium and aluminum in a concentration of at least 0.5%, whereby agglomeration of the pile of the fabric is prevented.
4. Process for degumming natural silk contained in a pile fabric, which comprises subjecting a fabric having a back containing natural silk yarn and a pile containing cellulose acetate yarn to the action of a hot degumming bath, which bath contains a readily ionizable salt selected from the group consisting of the sulfates, chlorides, nitrates, chromates and acetates of sodium, potassium, magnesium, ammonium and aluminum in a concentration of at least 0.5%, whereby agglomeration of the pile of the fabric is prevented.
5. Process for degumming natural silk contained in a pile fabric, which comprises subjecting a. fabric having a back containing natural silk yarn and a pile containing organic derivative of cellulose yarn to the action of a hot degumming bath, which bath contains sodium sulfate, whereby agglomeration of the pile of the fabric is prevented.
6. Process for degumming natural silk 'contained in a pile fabric, which comprises subjecting a fabric having a back containing natural silk .yarn and a pile containing cellulose acetate yarn to the action of a hot degumming bath, which bath contains sodium sulfate, whereby agglomeration of the pile of the fabric is prevented.
7. Process for degumming natural silk contained in a pile fabric, which comprises subjecting a fabric having a back containing natural silk yarn and a pile containing cellulose acetate yarn to the action of a hot degumming bath, which bath contains sodium sulfate and disodium phosphate, whereby agglomeration of the pile of the fabric is prevented.
GEORGE SCHNEIDER.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US616573A US2041868A (en) | 1932-06-10 | 1932-06-10 | Treating textile material and product thereof |
| GB16715/33A GB409916A (en) | 1932-06-10 | 1933-06-12 | Improvements in or relating to the treatment of pile fabrics |
| US52829A US2114669A (en) | 1932-06-10 | 1935-12-04 | Treating textile material and product thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US616573A US2041868A (en) | 1932-06-10 | 1932-06-10 | Treating textile material and product thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2041868A true US2041868A (en) | 1936-05-26 |
Family
ID=24470076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US616573A Expired - Lifetime US2041868A (en) | 1932-06-10 | 1932-06-10 | Treating textile material and product thereof |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2041868A (en) |
| GB (1) | GB409916A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111875107A (en) * | 2020-08-03 | 2020-11-03 | 浙江理工大学桐乡研究院有限公司 | Reuse treatment method of pure silk refining wastewater |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011117136A1 (en) | 2011-10-25 | 2013-04-25 | JeNaCell GmbH | A process for the generation of dried cellulose and cellulosic material as well as ready-to-use cellulose products prepared by this process |
-
1932
- 1932-06-10 US US616573A patent/US2041868A/en not_active Expired - Lifetime
-
1933
- 1933-06-12 GB GB16715/33A patent/GB409916A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111875107A (en) * | 2020-08-03 | 2020-11-03 | 浙江理工大学桐乡研究院有限公司 | Reuse treatment method of pure silk refining wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| GB409916A (en) | 1934-05-10 |
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