WO2005078191A2 - Method for surface treating corrugated base papers in order to increase strenght - Google Patents
Method for surface treating corrugated base papers in order to increase strenght Download PDFInfo
- Publication number
- WO2005078191A2 WO2005078191A2 PCT/HU2005/000011 HU2005000011W WO2005078191A2 WO 2005078191 A2 WO2005078191 A2 WO 2005078191A2 HU 2005000011 W HU2005000011 W HU 2005000011W WO 2005078191 A2 WO2005078191 A2 WO 2005078191A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- surface treating
- treating agent
- corrugated base
- base papers
- order
- Prior art date
Links
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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/23—Lignins
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
- D21H17/72—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic material
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/24—Addition to the formed paper during paper manufacture
- D21H23/26—Addition to the formed paper during paper manufacture by selecting point of addition or moisture content of the paper
- D21H23/28—Addition before the dryer section, e.g. at the wet end or press section
Definitions
- the invention relates to a method for surface treating corrugated base papers with a surface treating agent in order to increase strength. It is known that during the last years waste materials have been extensively recycled on many areas. Obviously, it has several advantages; namely, on one hand, it facilitates decreasing the further pollution of the overcharged environment, on the other hand, the secondary use of base materials and/or energy is economically advantageous . This trend has emerged also in the paper industry; the use of waste paper instead of primary fibres * (semi- cellulose, cellulose) is ever increasing. Several manufacturers use only waste paper in their production processes. However, certain properties of the paper products manufactured from waste papers, which are collected, processed (chemically and mechanically) and used several times, gradually deteriorate. This is especially true for the strength properties.
- corrugated base papers In case of various products, e.g. corrugated base papers, the appropriate strength is of premium importance. It is well known in the art that corrugated base papers are often treated in order to increase their strength. It is also known that in the paper dryer section of the manufacturing process a sizing press is applied in modern machines used for producing corrugated base paper. The sizing presses can be excellently used for surface treating papers. The paper strength is attempted to be increased by surface treatment, and, for the time being, starch is widespreadly used for the mentioned surface treatmen . For this purpose oxidized or enzymatically decomposed starches of plant origin are used which can be applied on the paper surface with the sizing press in the dryer section.
- Hungarian patent No. 215 679 describes a composition for corrugated boards which can be applied on the paper surface with a sizing press and contains 50 to 99 parts per weight lignosulfonate (black liquor) from pulp mills and 1 to 50 parts per weight additives (based on dry weight) .
- the mentioned additive contains a mixture of sodium chloride and carbamide or sodium chloride or carbamide.
- the composition is especially useful for increasing the CMT value (the resistance (measured in N) of the corrugated base paper sheet against the maximal compression force acting perpendicularly to the plane of trie sample, Hungarian standard MSZ 5664-77) and the rupture strength.
- this composition will be called LIQUWELL in the Description and Examples.
- LIQUWELL is a remarkable improvement as compared with starch, however, the strength properties of paper should be preferably further improved in various uses.
- the CMT value and SCT value (test of short span compressive strength, Hungarian standard MSZ ISO-150-9895) can be considerably increased and the rupture strength can be also improved-
- the starch strengthens the fibre-to-fibre connections and LIQUWELL imparts rigidity to the upper layers of the paper. This synergism could not be predicted by experts.
- An other unexpected effect is that the solids content of the mixture applied with the sizing press in the dryer section of the paper machine can be considerably increased. The increase of the solids content leads to significant savings in drying energy.
- the invention relates to a method for surface treating corrugated base papers where a surface treating agent containing starch and a composition containing 50 to 99 parts per weight lignosulfonate from pulp mills and 1 to 50 parts per weight additives - the surface treating agent contains at least 5 parts weight of the mentioned composition - is applied on the product surface with a sizing press in the dryer section of the paper machine.
- a surface treating agent containing starch and a composition containing 50 to 99 parts per weight lignosulfonate from pulp mills and 1 to 50 parts per weight additives - the surface treating agent contains at least 5 parts weight of the mentioned composition - is applied on the product surface with a sizing press in the dryer section of the paper machine.
- the paper machine specifications are as follows in all examples: width: 2.6 m; velocity: 760 m/min. Examples 1 and 2
- Produced paper corrugated base paper of 105 g/m 2 mass
- Example 2 the same amount of surface treating agent according to the invention leads to double amount of applied solids and half amount of applied water to be removed when compared with (comparative) Example 1, where only starch is applied as surface treating agent. Therefore, in the embodiment according to the invention the amount of evaporated water is significantly less and, in turn, the method requires significantly less drying energy than those using only starch.
- Examples 3 to 6 lead to the same conclusions as Examples 1 and 2, and it can be also observed that the CMT 30 values have been highly improved in the embodiment according to the invention as compared with the surface treating agent containing only starch.
Landscapes
- Paper (AREA)
Abstract
The invention relates to a method for surface treating corrugated base papers with a surface treating agent in order to increase strength. According to the invention a surface treating agent 10 containing starch and a composition containing 50 to 99 parts per weight lignosulfonate from pulp mills and 1 to 50 parts per weight additives - the surface treating agent contains at least 5 parts weight of the mentioned composition - is applied on the product surface with a sizing press in the dryer section of the paper machine.
Description
METHOD FOR SURFACE TREATING CORRUGATED BASE PAPERS IN ORDER TO INCREASE STRENGTH
The invention relates to a method for surface treating corrugated base papers with a surface treating agent in order to increase strength. It is known that during the last years waste materials have been extensively recycled on many areas. Obviously, it has several advantages; namely, on one hand, it facilitates decreasing the further pollution of the overcharged environment, on the other hand, the secondary use of base materials and/or energy is economically advantageous . This trend has emerged also in the paper industry; the use of waste paper instead of primary fibres* (semi- cellulose, cellulose) is ever increasing. Several manufacturers use only waste paper in their production processes. However, certain properties of the paper products manufactured from waste papers, which are collected, processed (chemically and mechanically) and used several times, gradually deteriorate. This is especially true for the strength properties. In case of various products, e.g. corrugated base papers, the appropriate strength is of premium importance. It is well known in the art that corrugated base papers are often treated in order to increase their strength. It is also known that in the paper dryer section of the manufacturing process a sizing press is applied in modern machines used for producing corrugated base paper. The sizing presses can be excellently used for surface treating papers.
The paper strength is attempted to be increased by surface treatment, and, for the time being, starch is widespreadly used for the mentioned surface treatmen . For this purpose oxidized or enzymatically decomposed starches of plant origin are used which can be applied on the paper surface with the sizing press in the dryer section. The use of starch increases the number hydrogen bridges between fibres which in turn increase the strength of corrugated base papers. Though the starch used for surface treatment increases strength, it cannot impart enough rigidity (CMT, SCT, etc.) to corrugated base papers. Therefore, a surface treatment is needed which further increases the paper strength. However, Hungarian patent No. 215 679 describes a composition for corrugated boards which can be applied on the paper surface with a sizing press and contains 50 to 99 parts per weight lignosulfonate (black liquor) from pulp mills and 1 to 50 parts per weight additives (based on dry weight) . The mentioned additive contains a mixture of sodium chloride and carbamide or sodium chloride or carbamide. According to the patent mentioned above, the composition is especially useful for increasing the CMT value (the resistance (measured in N) of the corrugated base paper sheet against the maximal compression force acting perpendicularly to the plane of trie sample, Hungarian standard MSZ 5664-77) and the rupture strength. For brevity, this composition will be called LIQUWELL in the Description and Examples. LIQUWELL is a remarkable improvement as compared with starch, however, the strength properties of paper should be preferably further improved in various uses. Surprisingly, we have found that in a surface treating material, containing the appropriate amount and
concentration of starch and LIQUWELL, the two components interact and the strength and rigidity of the paper unexpectedly increase. Thus, the CMT value and SCT value (test of short span compressive strength, Hungarian standard MSZ ISO-150-9895) can be considerably increased and the rupture strength can be also improved- According to our observations, the starch strengthens the fibre-to-fibre connections and LIQUWELL imparts rigidity to the upper layers of the paper. This synergism could not be predicted by experts. An other unexpected effect is that the solids content of the mixture applied with the sizing press in the dryer section of the paper machine can be considerably increased. The increase of the solids content leads to significant savings in drying energy. Thus, the invention relates to a method for surface treating corrugated base papers where a surface treating agent containing starch and a composition containing 50 to 99 parts per weight lignosulfonate from pulp mills and 1 to 50 parts per weight additives - the surface treating agent contains at least 5 parts weight of the mentioned composition - is applied on the product surface with a sizing press in the dryer section of the paper machine. The embodiment of the invention is illustrated with the following examples, however, the invention is not limited to them.
The paper machine specifications are as follows in all examples: width: 2.6 m; velocity: 760 m/min.
Examples 1 and 2
Produced paper: corrugated base paper of 105 g/m2 mass
As it can be seen from the above examples, the same amount of surface treating agent according to the invention (Example 2) leads to double amount of applied solids and half amount of applied water to be removed when compared with (comparative) Example 1, where only starch is applied as surface treating agent. Therefore, in the embodiment according to the invention the amount of evaporated water is significantly less and, in turn, the method requires significantly less drying energy than those using only starch.
Examples 3 to 6 Produced paper: corrugated base paper of 105 g/m2 mass
Examples 3 to 6 lead to the same conclusions as Examples 1 and 2, and it can be also observed that the CMT30 values have been highly improved in the embodiment according to the invention as compared with the surface treating agent containing only starch.
Claims
CLAIM
Method for surface treating corrugated base papers with a surface treating agent in order to increase strength, where the surface treating agent containing starch and a composition containing 50 to 99 parts per weight lignosulfonate from pulp mills and 1 to 50 parts per weight additives - the surface treating agent contains at least 5 parts weight of the mentioned composition - is applied on the product surface with a sizing press in the dryer section of the paper machine .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112005000332T DE112005000332T5 (en) | 2004-02-11 | 2005-02-10 | Process for the surface treatment of corrugated base paper to increase its strength |
| NO20064028A NO20064028L (en) | 2004-02-11 | 2006-09-07 | Procedure for surface treatment of corrugated cardboard |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU0400410A HU226098B1 (en) | 2004-02-11 | 2004-02-11 | Method for surface treating of corrugated papers in order to increase strenght |
| HUP0400410 | 2004-02-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2005078191A2 true WO2005078191A2 (en) | 2005-08-25 |
| WO2005078191A3 WO2005078191A3 (en) | 2009-01-08 |
Family
ID=89981984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/HU2005/000011 WO2005078191A2 (en) | 2004-02-11 | 2005-02-10 | Method for surface treating corrugated base papers in order to increase strenght |
Country Status (5)
| Country | Link |
|---|---|
| CZ (1) | CZ303278B6 (en) |
| DE (1) | DE112005000332T5 (en) |
| HU (2) | HU226098B1 (en) |
| NO (1) | NO20064028L (en) |
| WO (1) | WO2005078191A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006027632A3 (en) * | 2004-09-08 | 2006-06-15 | Welltech Kft | Method for surface treating corrugated base papers |
| CZ303278B6 (en) * | 2004-02-11 | 2012-07-11 | Technofill Kereskedelmi és Szolgáltató Kft | Surface treatment process of corrugated paper to increase strength thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3644167A (en) * | 1969-07-14 | 1972-02-22 | Georgia Pacific Corp | Preparation of corrugating linerboard |
| JPS50962B1 (en) * | 1971-08-06 | 1975-01-14 | ||
| US4214948A (en) * | 1974-07-31 | 1980-07-29 | National Starch And Chemical Corporation | Method of sizing paper |
| GB9610955D0 (en) * | 1996-05-24 | 1996-07-31 | Hercules Inc | Sizing composition |
| US5753078A (en) * | 1996-06-07 | 1998-05-19 | Cartons St-Laurent, Inc./St. Laurent Paperboard, Inc. | Method of making surface coated or impregnated paper or paperboard |
| US20020084045A1 (en) * | 1998-11-12 | 2002-07-04 | Dimitris Ioannis Collias | Compositions for improving physical strength properties and humidity resistance of paper products |
| US6211357B1 (en) * | 1999-12-09 | 2001-04-03 | Paper Technology Foundation, Inc. | Strengthening compositions and treatments for lignocellulosic materials |
| JP4748922B2 (en) * | 2000-04-12 | 2011-08-17 | ハーキュリーズ・インコーポレーテッド | Paper size composition |
| HU226098B1 (en) * | 2004-02-11 | 2008-04-28 | Technofill Kereskedelmi Es Szo | Method for surface treating of corrugated papers in order to increase strenght |
-
2004
- 2004-02-11 HU HU0400410A patent/HU226098B1/en unknown
- 2004-02-11 HU HU0400410A patent/HUP0400410A2/en unknown
-
2005
- 2005-02-10 CZ CZ20060544A patent/CZ303278B6/en not_active IP Right Cessation
- 2005-02-10 WO PCT/HU2005/000011 patent/WO2005078191A2/en active Application Filing
- 2005-02-10 DE DE112005000332T patent/DE112005000332T5/en not_active Ceased
-
2006
- 2006-09-07 NO NO20064028A patent/NO20064028L/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ303278B6 (en) * | 2004-02-11 | 2012-07-11 | Technofill Kereskedelmi és Szolgáltató Kft | Surface treatment process of corrugated paper to increase strength thereof |
| WO2006027632A3 (en) * | 2004-09-08 | 2006-06-15 | Welltech Kft | Method for surface treating corrugated base papers |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112005000332T5 (en) | 2007-04-26 |
| HU226098B1 (en) | 2008-04-28 |
| HUP0400410A2 (en) | 2006-02-28 |
| HU0400410D0 (en) | 2004-04-28 |
| CZ303278B6 (en) | 2012-07-11 |
| CZ2006544A3 (en) | 2006-11-15 |
| NO20064028L (en) | 2006-09-07 |
| WO2005078191A3 (en) | 2009-01-08 |
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