US1390297A - Paper-filler and process of making the same - Google Patents
Paper-filler and process of making the same Download PDFInfo
- Publication number
- US1390297A US1390297A US279645A US27964519A US1390297A US 1390297 A US1390297 A US 1390297A US 279645 A US279645 A US 279645A US 27964519 A US27964519 A US 27964519A US 1390297 A US1390297 A US 1390297A
- Authority
- US
- United States
- Prior art keywords
- paper
- filler
- making
- water
- calcium
- 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
- 239000000945 filler Substances 0.000 title description 32
- 238000000034 method Methods 0.000 title description 14
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000007787 solid Substances 0.000 description 13
- 239000000203 mixture Substances 0.000 description 11
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 10
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 10
- 235000019341 magnesium sulphate Nutrition 0.000 description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000005406 washing Methods 0.000 description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 4
- 239000005018 casein Substances 0.000 description 4
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 4
- 235000021240 caseins Nutrition 0.000 description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 150000002681 magnesium compounds Chemical class 0.000 description 2
- 159000000003 magnesium salts Chemical class 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 210000004722 stifle Anatomy 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/385—Oxides, hydroxides or carbonates
Definitions
- My invention relates to an improved pa-- per filler especially adapted for use in coating paper to produce the high glossy surfaces required on paper for books, catalogues, periodicals, etc, employed for wood cuts and photographic illustrations; and also to the process of making such filler.
- satin white Various fillers are at present employed in coating paper to provide the same with a glossy surface such as described, among them that known by the trade name of satin white.
- A. common form of satin white consists of a mixture of calcium sulfate, aluminum hydrate, calcium hydroxid and water, whichis disposedof to the trade in the form of a stid water paste.
- the principal object of my invention is to produce a new and improved paper filler adapted for use in place of satin white and other paper fillers now employed by the trade, and by the use of which improved results are obtainable,
- satin white as a paper filler.
- fillers to the surface of paper it is" customary to employ casein dissolved in an alkali. Satin white, however, tends to coagulate the casein, and accordingly it is necessary when applying this filler to use an excess of the alkali solvent for the casein in order to prevent coagulation of the latter and to obtain a coating on the paper which is at all satisfactory. Satin white is also crystalline and uneven in structure and on account of this the surface of paper coated therewith readily picks, especially in the operation of printing thereon. 4
- T have found that by mixing a soluble magnesium salt with certain other material commonly used in making paper fillers ll obtain a product which will contain an insoluble magnesium compound and the use of which as a paper filler will be unaccompanied by the objectionable features described above.
- T preferably employ magnesium sulfate, as the soluble magnesium salt, and
- This product constltutes my improved paper filler and consists of a mixture of magnesium hydroxid (an insoluble magnesium compound), calcium sulfate, aluminum hydrate, and calcium hydroxid.
- the paper filler thus produced is amorphous and of a fine, uniform and smooth texture. It does not tend to coagulate casein and accordingly is easily and readily applicable to the surface of the paper.
- a paper filler comprising a mixture containing magnesium hydroxid, calcium sulfate and calcium hydroxid.
- a paper filler comprising a mixture containing magnesium hydroxid, calcium sulfate, aluminum hydrate and calcium hydroxid.
- makin a paper filler which consists in mixing magnesium sulfate with aluminum hydrate and an excess of calcium oxid and water, separating the solid matter in the mixture from the water and material in solution, then washing the solid matter so separated, and then pressing such solid matter to a stifl paste.
Landscapes
- Paper (AREA)
Description
T" E S 1 N F .i
WILL N. KOHJLINS, OF NEWARK, NEW JERSEY.
SAME.
nascent,
lto Drawing.
To all whom it may concern:
Be it known that 1, WILLIAM N. Konmms, a citizen of the United States, and a resident of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Paper- Fillers and Processes of Making the Same, of which the following is a description.
My invention relates to an improved pa-- per filler especially adapted for use in coating paper to produce the high glossy surfaces required on paper for books, catalogues, periodicals, etc, employed for wood cuts and photographic illustrations; and also to the process of making such filler.
Various fillers are at present employed in coating paper to provide the same with a glossy surface such as described, among them that known by the trade name of satin white. A. common form of satin white consists of a mixture of calcium sulfate, aluminum hydrate, calcium hydroxid and water, whichis disposedof to the trade in the form of a stid water paste.
The principal object of my invention is to produce a new and improved paper filler adapted for use in place of satin white and other paper fillers now employed by the trade, and by the use of which improved results are obtainable, There are certain drawbacks to the use of satin white as a paper filler. Tn applying fillers to the surface of paper, it is" customary to employ casein dissolved in an alkali. Satin white, however, tends to coagulate the casein, and accordingly it is necessary when applying this filler to use an excess of the alkali solvent for the casein in order to prevent coagulation of the latter and to obtain a coating on the paper which is at all satisfactory. Satin white is also crystalline and uneven in structure and on account of this the surface of paper coated therewith readily picks, especially in the operation of printing thereon. 4
T have found that by mixing a soluble magnesium salt with certain other material commonly used in making paper fillers ll obtain a product which will contain an insoluble magnesium compound and the use of which as a paper filler will be unaccompanied by the objectionable features described above. T preferably employ magnesium sulfate, as the soluble magnesium salt, and
Specification of Letters Patent. Patzgnfgqgffl Sept, 113 11921 Application filed February 2'7, 1919. Serial No. 279,645.
preferably mix the same with aluminum hydrate and an excess of calcium oxid and water. The solid matter or residue is then separated from the water and material in solution, and after a thorough washing is pressed to a stifi" pulp or paste. This product constltutes my improved paper filler and consists of a mixture of magnesium hydroxid (an insoluble magnesium compound), calcium sulfate, aluminum hydrate, and calcium hydroxid. The paper filler thus produced is amorphous and of a fine, uniform and smooth texture. It does not tend to coagulate casein and accordingly is easily and readily applicable to the surface of the paper. Moreover, it lies better on paper than satin white and other fillers now employed, produces a surface having a higher and better gloss, and because of its fine, compact and uniform texture the surface of paper coated therewith does not pick When being printed on. I believe these results are due entirely to the presence of the magnesium hydroxid which renders my pa per filler essentially difl erent from satin white, china clay, blancfixe and other fillers now commonly employed. While I prefer to employ aluminum hydrate as one of the ingradients of my paper filler, the same does not enter into the reactionwhich results in the production of the filler and may 'obvi ously be omitted.
While T have specifically described the preferred form of my paper filler and the process of making the same, it is to be understood that both the filler and the process are subject to various modifications without departure from the spirit of my invention and the scope of the appended claims.
Having now described my invention, what I claim as new and desire to protect by Letpers Patent of the United States is as folows:
1. A paper filler comprising a mixture containing magnesium hydroxid, calcium sulfate and calcium hydroxid.
2. A paper filler comprising a mixture containing magnesium hydroxid, calcium sulfate, aluminum hydrate and calcium hydroxid.
3. The process of making a paper filler, which comprises mixing magnesium sulfate with an excess of calcium 02nd and water.
4. The process. of making a paper filler,
Stl
which comprises mixing magnesium sulfate with aluminum hydrate and an excess of calcium oxid.
5. The process of making a paper filler, which comprises mixing magnesium sulfate with aluminum hydrate and with an excess of calcium oxid and water.
6. The process of making a paper filler, which comprises mixing magnesium sulfate with aluminum hydrate and an excess of calcium oxid and water, and separating the solid matter in the mixture from the water and material in solution.
7. The process of making a paper filler,
which comprises mixing magnesium sulfate with aluminum hydrate and an excess of calcium oxid and water, separating the solid matter in the mixture from the water and material in solution, and then washing the solid matter so separated.
8. The process of makin a paper filler, which consists in mixing magnesium sulfate with aluminum hydrate and an excess of calcium oxid and water, separating the solid matter in the mixture from the water and material in solution, then washing the solid matter so separated, and then pressing such solid matter to a stifl paste.
9. The process of making a paper filler, which comprises mixing magnesium sulfate with an excess of calcium oxid and water,
' and separating the solid matter in the mixture from the water and material in solution.
10. The process of making a paper filler, which comprises mixing magnesium sulfate with an excess of calclum oxid and water, separating the solid matter in the mixture from the water and material in solution, and then washing the solid matter so separated.
11. The process of making a paper filler, which comprises mixing magnesium sulfate with an excess of calcium oxid and water, separating the solid matter in the mixture from the water and material in solution, then washing the solid matter so separated, and then pressing such solid matter to a stiff paste.
This specification signed this 19th day of 4 February 1919;
WILLIAM N. KOHLINS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US279645A US1390297A (en) | 1919-02-27 | 1919-02-27 | Paper-filler and process of making the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US279645A US1390297A (en) | 1919-02-27 | 1919-02-27 | Paper-filler and process of making the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1390297A true US1390297A (en) | 1921-09-13 |
Family
ID=23069854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US279645A Expired - Lifetime US1390297A (en) | 1919-02-27 | 1919-02-27 | Paper-filler and process of making the same |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1390297A (en) |
-
1919
- 1919-02-27 US US279645A patent/US1390297A/en not_active Expired - Lifetime
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