US2005378A - Manufacture of cellulose material - Google Patents
Manufacture of cellulose material Download PDFInfo
- Publication number
- US2005378A US2005378A US641947A US64194732A US2005378A US 2005378 A US2005378 A US 2005378A US 641947 A US641947 A US 641947A US 64194732 A US64194732 A US 64194732A US 2005378 A US2005378 A US 2005378A
- Authority
- US
- United States
- Prior art keywords
- cellulose
- manufacture
- reddening
- cellulose material
- unbleached
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
- D21C9/083—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with inorganic compounds
Definitions
- Unbleached or slightly bleached cellulose or mixtures thereof with bleached celluloses have a tendency, particularly when stored in damp places or exposed to light, to exhibit intense red- 5 dening or smudged graydiscolorations which are connected with the said reddening.
- the reddening or discolorations also occur in the fibrous products (paper, cardboard, cellulose wadding and the like) manufactured from such substances and render it impossible or scarcely possible to utilize them for many purposes, particularly since the discoloration or reddening can also be caused V to a considerable extent by the chemical action of various reagents (particularly salts, oxidizing agents and others). This is particularly disadvantageous for example when such papers, say in the form of wrapping paper, come into contact with salt-containing goods.
- the new process may be carried out for as follows:
- Example I In the manufacture of unbleached cellulose, at any point in the manufacturing process which is suitable for a thoroughly good mixing, preferably in the hollander, before finishing, an acid stannous chloride solution is added to the stuff (-1 part of stannous chloride per 1000 parts of dry stuff) The stuff, which immediately becomes considerably lighter in colour, is thoroughly mixed at the same time and is treated further in known manner. It can then be manufactured (also in admixture with bleached cellulose) into perfectly color-fast material such as paper, cardboard, cellulose wadding and the like.
- Example II In the manufacture of paper, 1 part of stannous chloride in solution per 1000'parts of dry stuff is added to the ground material in the hollander after the addition of the alumsolution. The ground material is thereupon thoroughly mixed for about 10 minutes, whereupon the treatment is completed' The effect of the addition generally makes itself felt immediately by a considerable lightening in the tint. The material can then be dyed (also in'comparatively pure and clear tints) and worked up in known manner.
Description
Patentedv June 18, 1935 UNITED! STATES PATENT OFFICE signor of one-half to Zellstoffi'abrik Waldhof,
Mannheim-Waldhof, Germany, a corporation of Germany No Drawing. Application November 9,
In Germany December 16,
Serial No. 641,947. 1931 i 2 Claims.
Unbleached or slightly bleached cellulose or mixtures thereof with bleached celluloses have a tendency, particularly when stored in damp places or exposed to light, to exhibit intense red- 5 dening or smudged graydiscolorations which are connected with the said reddening. The reddening or discolorations also occur in the fibrous products (paper, cardboard, cellulose wadding and the like) manufactured from such substances and render it impossible or scarcely possible to utilize them for many purposes, particularly since the discoloration or reddening can also be caused V to a considerable extent by the chemical action of various reagents (particularly salts, oxidizing agents and others). This is particularly disadvantageous for example when such papers, say in the form of wrapping paper, come into contact with salt-containing goods.
It has previously been attempted to prevent or eliminate the said disadvantageous reddening and discolorations by means of certain oxidizing agents. This method, however, has been unable to find any introduction into the art, because the use of oxidizing agents is troublesome, and the fibrous material itself is more or less strongly attacked at the same time. It has also been attempted to employ, for the same purpose, volatile reducing agents, such as sulfurous acid, or those which are absorbed either not at all or only a little by the cellulose fibres (for example, hydrosulfite), but without success, because even with these a permanent effect cannot be attained.
I have now found that complete and permanent elimination of this reddening or discoloration occurring with the use of unbleached or slightly bleached cellulose material is attained in a very simple manner by impregnating the material with non-volatile reducing metallic salts which are capable of being absorbed by the cellulose fibre. Salts, such as stannous chloride, cuprous chloride, ferrous chloride, chromous chloride, and like salts, preferably of heavy metals have been found to be particularly adapted for this purpose. Thus, for example, by employing only 1 part of stannous chloride per 1000 parts of unbleached cellulose, it is possible to eliminate the reddening of the cellulose completely and permanently.
The new process may be carried out for as follows:
example Example I In the manufacture of unbleached cellulose, at any point in the manufacturing process which is suitable for a thoroughly good mixing, preferably in the hollander, before finishing, an acid stannous chloride solution is added to the stuff (-1 part of stannous chloride per 1000 parts of dry stuff) The stuff, which immediately becomes considerably lighter in colour, is thoroughly mixed at the same time and is treated further in known manner. It can then be manufactured (also in admixture with bleached cellulose) into perfectly color-fast material such as paper, cardboard, cellulose wadding and the like.
Example II In the manufacture of paper, 1 part of stannous chloride in solution per 1000'parts of dry stuff is added to the ground material in the hollander after the addition of the alumsolution. The ground material is thereupon thoroughly mixed for about 10 minutes, whereupon the treatment is completed' The effect of the addition generally makes itself felt immediately by a considerable lightening in the tint. The material can then be dyed (also in'comparatively pure and clear tints) and worked up in known manner.
I claim:
1. In a process for the manufacture of cellulose material of all kinds from unbleached cellulose, the step of preventing discoloration, particularly reddening of the material which comprises the impregnation of the fibrous material with a solution of stannous chloride.
2. Cellulose materials manufactured from unbleached cellulose and containing stannous chlo- '-ride. a
FRANZ KIEL.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2005378X | 1931-12-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2005378A true US2005378A (en) | 1935-06-18 |
Family
ID=7950921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US641947A Expired - Lifetime US2005378A (en) | 1931-12-16 | 1932-11-09 | Manufacture of cellulose material |
Country Status (1)
Country | Link |
---|---|
US (1) | US2005378A (en) |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5080754A (en) * | 1990-07-20 | 1992-01-14 | The Research Foundation Of State University Of Ny | Method for reducing brightness reversion in lignin-containing pulps and article of manufacture thereof |
US5681380A (en) * | 1995-06-05 | 1997-10-28 | Kimberly-Clark Worldwide, Inc. | Ink for ink jet printers |
US5700850A (en) * | 1993-08-05 | 1997-12-23 | Kimberly-Clark Worldwide | Colorant compositions and colorant stabilizers |
US5709955A (en) * | 1994-06-30 | 1998-01-20 | Kimberly-Clark Corporation | Adhesive composition curable upon exposure to radiation and applications therefor |
US5721287A (en) * | 1993-08-05 | 1998-02-24 | Kimberly-Clark Worldwide, Inc. | Method of mutating a colorant by irradiation |
US5733693A (en) * | 1993-08-05 | 1998-03-31 | Kimberly-Clark Worldwide, Inc. | Method for improving the readability of data processing forms |
US5773182A (en) * | 1993-08-05 | 1998-06-30 | Kimberly-Clark Worldwide, Inc. | Method of light stabilizing a colorant |
US5782963A (en) * | 1996-03-29 | 1998-07-21 | Kimberly-Clark Worldwide, Inc. | Colorant stabilizers |
US5786132A (en) * | 1995-06-05 | 1998-07-28 | Kimberly-Clark Corporation | Pre-dyes, mutable dye compositions, and methods of developing a color |
US5837429A (en) * | 1995-06-05 | 1998-11-17 | Kimberly-Clark Worldwide | Pre-dyes, pre-dye compositions, and methods of developing a color |
US5855655A (en) * | 1996-03-29 | 1999-01-05 | Kimberly-Clark Worldwide, Inc. | Colorant stabilizers |
US5858586A (en) * | 1993-08-05 | 1999-01-12 | Kimberly-Clark Corporation | Digital information recording media and method of using same |
US5865471A (en) * | 1993-08-05 | 1999-02-02 | Kimberly-Clark Worldwide, Inc. | Photo-erasable data processing forms |
US5885337A (en) * | 1995-11-28 | 1999-03-23 | Nohr; Ronald Sinclair | Colorant stabilizers |
US5891229A (en) * | 1996-03-29 | 1999-04-06 | Kimberly-Clark Worldwide, Inc. | Colorant stabilizers |
US6008268A (en) * | 1994-10-21 | 1999-12-28 | Kimberly-Clark Worldwide, Inc. | Photoreactor composition, method of generating a reactive species, and applications therefor |
US6017471A (en) * | 1993-08-05 | 2000-01-25 | Kimberly-Clark Worldwide, Inc. | Colorants and colorant modifiers |
US6017661A (en) * | 1994-11-09 | 2000-01-25 | Kimberly-Clark Corporation | Temporary marking using photoerasable colorants |
US6033465A (en) * | 1995-06-28 | 2000-03-07 | Kimberly-Clark Worldwide, Inc. | Colorants and colorant modifiers |
US6071979A (en) * | 1994-06-30 | 2000-06-06 | Kimberly-Clark Worldwide, Inc. | Photoreactor composition method of generating a reactive species and applications therefor |
US6099628A (en) * | 1996-03-29 | 2000-08-08 | Kimberly-Clark Worldwide, Inc. | Colorant stabilizers |
US6211383B1 (en) | 1993-08-05 | 2001-04-03 | Kimberly-Clark Worldwide, Inc. | Nohr-McDonald elimination reaction |
US6228157B1 (en) | 1998-07-20 | 2001-05-08 | Ronald S. Nohr | Ink jet ink compositions |
US6242057B1 (en) | 1994-06-30 | 2001-06-05 | Kimberly-Clark Worldwide, Inc. | Photoreactor composition and applications therefor |
US6265458B1 (en) | 1998-09-28 | 2001-07-24 | Kimberly-Clark Worldwide, Inc. | Photoinitiators and applications therefor |
US6277897B1 (en) | 1998-06-03 | 2001-08-21 | Kimberly-Clark Worldwide, Inc. | Photoinitiators and applications therefor |
US6294698B1 (en) | 1999-04-16 | 2001-09-25 | Kimberly-Clark Worldwide, Inc. | Photoinitiators and applications therefor |
US6331056B1 (en) | 1999-02-25 | 2001-12-18 | Kimberly-Clark Worldwide, Inc. | Printing apparatus and applications therefor |
US6368396B1 (en) | 1999-01-19 | 2002-04-09 | Kimberly-Clark Worldwide, Inc. | Colorants, colorant stabilizers, ink compositions, and improved methods of making the same |
US6368395B1 (en) | 1999-05-24 | 2002-04-09 | Kimberly-Clark Worldwide, Inc. | Subphthalocyanine colorants, ink compositions, and method of making the same |
US6503559B1 (en) | 1998-06-03 | 2003-01-07 | Kimberly-Clark Worldwide, Inc. | Neonanoplasts and microemulsion technology for inks and ink jet printing |
US6524379B2 (en) | 1997-08-15 | 2003-02-25 | Kimberly-Clark Worldwide, Inc. | Colorants, colorant stabilizers, ink compositions, and improved methods of making the same |
-
1932
- 1932-11-09 US US641947A patent/US2005378A/en not_active Expired - Lifetime
Cited By (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5080754A (en) * | 1990-07-20 | 1992-01-14 | The Research Foundation Of State University Of Ny | Method for reducing brightness reversion in lignin-containing pulps and article of manufacture thereof |
US6060223A (en) * | 1993-08-05 | 2000-05-09 | Kimberly-Clark Worldwide, Inc. | Plastic article for colored printing and method for printing on a colored plastic article |
US5721287A (en) * | 1993-08-05 | 1998-02-24 | Kimberly-Clark Worldwide, Inc. | Method of mutating a colorant by irradiation |
US6211383B1 (en) | 1993-08-05 | 2001-04-03 | Kimberly-Clark Worldwide, Inc. | Nohr-McDonald elimination reaction |
US6127073A (en) * | 1993-08-05 | 2000-10-03 | Kimberly-Clark Worldwide, Inc. | Method for concealing information and document for securely communicating concealed information |
US5733693A (en) * | 1993-08-05 | 1998-03-31 | Kimberly-Clark Worldwide, Inc. | Method for improving the readability of data processing forms |
US5773182A (en) * | 1993-08-05 | 1998-06-30 | Kimberly-Clark Worldwide, Inc. | Method of light stabilizing a colorant |
US6120949A (en) * | 1993-08-05 | 2000-09-19 | Kimberly-Clark Worldwide, Inc. | Photoerasable paint and method for using photoerasable paint |
US6066439A (en) * | 1993-08-05 | 2000-05-23 | Kimberly-Clark Worldwide, Inc. | Instrument for photoerasable marking |
US5700850A (en) * | 1993-08-05 | 1997-12-23 | Kimberly-Clark Worldwide | Colorant compositions and colorant stabilizers |
US5858586A (en) * | 1993-08-05 | 1999-01-12 | Kimberly-Clark Corporation | Digital information recording media and method of using same |
US6060200A (en) * | 1993-08-05 | 2000-05-09 | Kimberly-Clark Worldwide, Inc. | Photo-erasable data processing forms and methods |
US5865471A (en) * | 1993-08-05 | 1999-02-02 | Kimberly-Clark Worldwide, Inc. | Photo-erasable data processing forms |
US6054256A (en) * | 1993-08-05 | 2000-04-25 | Kimberly-Clark Worldwide, Inc. | Method and apparatus for indicating ultraviolet light exposure |
US6017471A (en) * | 1993-08-05 | 2000-01-25 | Kimberly-Clark Worldwide, Inc. | Colorants and colorant modifiers |
US5908495A (en) * | 1993-08-05 | 1999-06-01 | Nohr; Ronald Sinclair | Ink for ink jet printers |
US6342305B1 (en) | 1993-09-10 | 2002-01-29 | Kimberly-Clark Corporation | Colorants and colorant modifiers |
US6071979A (en) * | 1994-06-30 | 2000-06-06 | Kimberly-Clark Worldwide, Inc. | Photoreactor composition method of generating a reactive species and applications therefor |
US5709955A (en) * | 1994-06-30 | 1998-01-20 | Kimberly-Clark Corporation | Adhesive composition curable upon exposure to radiation and applications therefor |
US6242057B1 (en) | 1994-06-30 | 2001-06-05 | Kimberly-Clark Worldwide, Inc. | Photoreactor composition and applications therefor |
US6090236A (en) * | 1994-06-30 | 2000-07-18 | Kimberly-Clark Worldwide, Inc. | Photocuring, articles made by photocuring, and compositions for use in photocuring |
US6008268A (en) * | 1994-10-21 | 1999-12-28 | Kimberly-Clark Worldwide, Inc. | Photoreactor composition, method of generating a reactive species, and applications therefor |
US6017661A (en) * | 1994-11-09 | 2000-01-25 | Kimberly-Clark Corporation | Temporary marking using photoerasable colorants |
US6235095B1 (en) | 1994-12-20 | 2001-05-22 | Ronald Sinclair Nohr | Ink for inkjet printers |
US5837429A (en) * | 1995-06-05 | 1998-11-17 | Kimberly-Clark Worldwide | Pre-dyes, pre-dye compositions, and methods of developing a color |
US5786132A (en) * | 1995-06-05 | 1998-07-28 | Kimberly-Clark Corporation | Pre-dyes, mutable dye compositions, and methods of developing a color |
US6063551A (en) * | 1995-06-05 | 2000-05-16 | Kimberly-Clark Worldwide, Inc. | Mutable dye composition and method of developing a color |
US5681380A (en) * | 1995-06-05 | 1997-10-28 | Kimberly-Clark Worldwide, Inc. | Ink for ink jet printers |
US6033465A (en) * | 1995-06-28 | 2000-03-07 | Kimberly-Clark Worldwide, Inc. | Colorants and colorant modifiers |
US5885337A (en) * | 1995-11-28 | 1999-03-23 | Nohr; Ronald Sinclair | Colorant stabilizers |
US6168655B1 (en) | 1995-11-28 | 2001-01-02 | Kimberly-Clark Worldwide, Inc. | Colorant stabilizers |
US5891229A (en) * | 1996-03-29 | 1999-04-06 | Kimberly-Clark Worldwide, Inc. | Colorant stabilizers |
US5782963A (en) * | 1996-03-29 | 1998-07-21 | Kimberly-Clark Worldwide, Inc. | Colorant stabilizers |
US6099628A (en) * | 1996-03-29 | 2000-08-08 | Kimberly-Clark Worldwide, Inc. | Colorant stabilizers |
US6168654B1 (en) | 1996-03-29 | 2001-01-02 | Kimberly-Clark Worldwide, Inc. | Colorant stabilizers |
US5855655A (en) * | 1996-03-29 | 1999-01-05 | Kimberly-Clark Worldwide, Inc. | Colorant stabilizers |
US6524379B2 (en) | 1997-08-15 | 2003-02-25 | Kimberly-Clark Worldwide, Inc. | Colorants, colorant stabilizers, ink compositions, and improved methods of making the same |
US6277897B1 (en) | 1998-06-03 | 2001-08-21 | Kimberly-Clark Worldwide, Inc. | Photoinitiators and applications therefor |
US6503559B1 (en) | 1998-06-03 | 2003-01-07 | Kimberly-Clark Worldwide, Inc. | Neonanoplasts and microemulsion technology for inks and ink jet printing |
US6228157B1 (en) | 1998-07-20 | 2001-05-08 | Ronald S. Nohr | Ink jet ink compositions |
US6265458B1 (en) | 1998-09-28 | 2001-07-24 | Kimberly-Clark Worldwide, Inc. | Photoinitiators and applications therefor |
US6368396B1 (en) | 1999-01-19 | 2002-04-09 | Kimberly-Clark Worldwide, Inc. | Colorants, colorant stabilizers, ink compositions, and improved methods of making the same |
US6331056B1 (en) | 1999-02-25 | 2001-12-18 | Kimberly-Clark Worldwide, Inc. | Printing apparatus and applications therefor |
US6294698B1 (en) | 1999-04-16 | 2001-09-25 | Kimberly-Clark Worldwide, Inc. | Photoinitiators and applications therefor |
US6368395B1 (en) | 1999-05-24 | 2002-04-09 | Kimberly-Clark Worldwide, Inc. | Subphthalocyanine colorants, ink compositions, and method of making the same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2005378A (en) | Manufacture of cellulose material | |
US3837804A (en) | Process for deacidifying a book which has a pyroxylin-containing cover | |
US2250483A (en) | Fireproofing composition and method | |
GB296344A (en) | Improvements in or relating to the treatment of fabrics or other materials or articles made from combustible material | |
US2200603A (en) | Method for the improving of goods | |
US2483008A (en) | Proofing proteinaceous fibers against biological attack | |
US1279679A (en) | Soluble dye in sheet form. | |
US1372038A (en) | Dye assistant | |
US3481828A (en) | Bleaching of wood pulp with thiourea dioxide and zinc sulfate | |
TW460547B (en) | Basic dyestuff composition and dyeing method using the same | |
US2069472A (en) | Concentration of dilute sulphuric acid containing amyloid | |
US2048645A (en) | Process of carroting fur and the like and composition therefor | |
US2124256A (en) | Process for the treatment of cellulosic fibrous materials | |
US196422A (en) | Improvement in fixing water-colors on paper | |
US2056575A (en) | Manufacture of bleached dry dextrine composition | |
US1955678A (en) | Fur treating composition and process | |
US2192218A (en) | Sizing and desizing of regenerated cellulose textile materials | |
DE2140325C3 (en) | Bleaching process for cellulose textiles | |
US2194932A (en) | Treatment of textile material | |
US2414327A (en) | Method of water- and sunproofing paper and textiles and the composition to be used in the method | |
US653411A (en) | Process of making tobacco-brown wrapping-paper. | |
US1633736A (en) | Process of preparing paper pulp | |
US2107703A (en) | Process for rendering wool material unshrinkable and nonfelting product made thereby | |
FI793720A (en) | FOERFARANDE FOER FAERGFOERBAETTRING OCH LUKTBORTTAGNING AV SULFATMASSA | |
US1236868A (en) | Process of dyeing. |