[go: up one dir, main page]

IE60108B1 - Process for manufacturing wrapping paper and cardboard - Google Patents

Process for manufacturing wrapping paper and cardboard

Info

Publication number
IE60108B1
IE60108B1 IE84188A IE84188A IE60108B1 IE 60108 B1 IE60108 B1 IE 60108B1 IE 84188 A IE84188 A IE 84188A IE 84188 A IE84188 A IE 84188A IE 60108 B1 IE60108 B1 IE 60108B1
Authority
IE
Ireland
Prior art keywords
parts
process according
incorporated
cellulose fibres
paper
Prior art date
Application number
IE84188A
Other versions
IE880841L (en
Inventor
Yves Bonnaud
Lucien Bourson
Original Assignee
Atochem
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9349311&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IE60108(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Atochem filed Critical Atochem
Publication of IE880841L publication Critical patent/IE880841L/en
Publication of IE60108B1 publication Critical patent/IE60108B1/en

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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/76—Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect
    • D21H23/765—Addition of all compounds to the pulp
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/14—Carboxylic acids; Derivatives thereof
    • D21H17/15—Polycarboxylic acids, e.g. maleic acid
    • D21H17/16—Addition products thereof with hydrocarbons
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/17—Ketenes, e.g. ketene dimers
    • 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
    • D21H17/29—Starch cationic
    • 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
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums

Landscapes

  • Paper (AREA)
  • Making Paper Articles (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Cartons (AREA)
  • Packaging Of Special Articles (AREA)

Abstract

1. Process for the manufacture of wrapping paper and of cardboard, characterized in that the following are added to the suspension containing the cellulose fibres before the sheet is formed : a) more than 0.5 parts by weight of cationic starch per 100 parts of cellulose fibres, b) less than 1 part by weigth, expressed as Al2 O3 , of aluminium polychloride per 100 parts of cellulose fibres.

Description

The present invention relates to a process for manufacturing paper, and more especially wrapping paper and t cardboard.
Raw paper pulp, consisting essentially of cellulose 5 fibres, is made into a dilute aqueous suspension which is carried to the flow box of the papermaking machine, whence it is distributed onto a filtering cloth on which the sheet of paper is formed. This sheet is then wrung and subsequently dried. The qualities and properties of the 10 paper obtained are determined, in particular, by the conditions of operation of the papermaking machine, the raw pulp, the different additives which are added to the suspension before the formation of the sheet and also the products which are coated onto the sheet of paper produced on the filtering cloth.
The present invention relates more especially to the products which are added before the formation of the sheet.
The main quality desired for wrapping is strength; it may also be advantageous to make the paper moisture20 resistant. Cellulose fibres originate from raw paper pulp and, more frequently, from recycled paper or cardboard, sometimes mixed with raw pulp.
GB-A-2,015,614 describes a process for manufacturing wrapping paper and cardboard flutings in which cationic starch and a basic aluminium polychlorosulphate, or ' ! aluminium sulphate, are added to the suspension of fibres before the flow box. The quantity of cationic starch should not exceed 0.4% of the weight of cellulose fibres. It is known that cationic starch contributes to the mechanical strength of the paper, and it would be useful to be able to introduce much more than 0.4% of it into the suspension, and especially to retain this starch in the formed sheet. In point of fact, starch is very hydrophilic, and if a quantity of 0.5% is exceeded, it is no longer possible to form the sheet of paper on the filtering cloth, except by greatly reducing the productivity of the papermaking machine. According to the present invention, a new process has been found which enables quantities of starch greater than 0.5% to be used in the flow box of the papermaking machine.
The present invention provides a process for manufacturing paper, especially wrapping paper, and cardboard, characterized in that the following are added to the suspension containing the cellulose fibres, before the formation of the sheet: a) at least 0.5 part of cationic starch per 100 parts of cellulose fibres, and b) less than 1 part of aluminium polychloride, expressed as per 100 parts of cellulose fibres. The suspension containing the cellulose fibres can be raw or belached P^P» oar a misture of raw pulp and bleaches pulp. Used paper and cardboard are very frequently added to the above mixture.
The cationic starch is usually a mixture of cne or more products marketed under the generic name of cationic starch. These products include those described in KIRK-OTHMER, 3rd edition, Vol. 21 page 503. The quantity is advantageously from 0.5 to 5 parts and preferably from 0.7 to 2, per 100 parts of cellulose fibres.
The term aluminium polychloride, as used herein, denotes the products that are customarily referred to as * aluminium polychloride, basic aluminium polychloride and basic aluminium polychlorosulphate, and is preferably one or more of the following products: 1/ the salts of formula: (/ in which m and n are positive integers, n having any value and 3n-m being positive; such salts can contain, in addition, a polyvalent anion Y, e.g. an anion of sulphuric, phosphoric, polyphosphoric, silicic, chromic, carboxylic or sulphonic acid, the mole ratio Y:Al preferably being from 0.015:1 to 0.4:1; 2/ the salts of formula: 2° *i.i°a).ci3„...!i(so,)k (ii) in which k, m and n are positive integers, 3n > m + 2k, the basicity m/3n is from 0.3 to 0.7 and k/n > 0.01 to 0.3.
This product may be prepared according to the process described in US-A-3,929,666; 3/ the salts of formula: , Cl (SO.) ] z to — 2 p in' 4 p J (III) [Aln(OH)3n in which k, m, n and p are integers and z is at least 1, such that (3n-m-2p)/3n = 0.4 to 0.7; p = 0.04 to 0.25n; m/p = 8 to 35. These products are described in GB-A-2,128,977; and 4/ basic aluminium chlorosulphates of formula: Al OH (SO. ). Cl, n m ' 4'k 3 n - m - 2 k (IV) in which the basicity or the mole ratio m x 100 is 3n from approximately 40% to 65% and which has an Al equivalent/Cl equivalent ratio of from 2.8 to 5, and an apparent molecular mass AM, measured by conventional light scattering, and apparent hydrodynamic diameters βΖ and βΚ, measured by quasi-elastic light scattering, of the following values: AM = 7,000 - 35,000 βΖ (A) = 350 - 2,500 βΚ (A) = 200 - 1,200 These products are described in FR-A-2,584,699.
The quantity of aluminium polychloride, expressed as Al2O3, to be used is not more than 1 part and preferably from 0.02 to 0.3 parts per 100 parts of cellulose fibres.
Although it is possible to add the products a and b in any order and at any point before the flow box of the papermaking machine, it is preferable to add the aluminium polychloride after the cationic starch. It is also preferable that the aluminium polychloride be added at a point as close as possible to the flow box.
Other products, such as colorants, can also be added to the suspension of cellulose fibres before the formation of the sheet in addition to the products a and b.
According to another embodiment of the invention, it is possible to add, in addition to cationic starch, one or more polyacrylamides, poly10 ethylenimines, carboxymethylcellulose, urea-formaldehyde resins, melamine-formaldehyde resins, aninopolyamideepichlorohydrin resins and polyamide-epichlorohydrin resins. Advantageously, these products are used in addition to cationic starch and in the same quantities.
According to another embodiment of the invention, it is also possible to add, in addition to the products £ and b or in addition to the products which are added with the cationic starch such as polyacrylamides , a sizing agent Bo as to make the paper slightly hydrophobic, enabling it to withstand moisture.
Although any sizing agent is suitable, it is advantageous to use colophony or a mixture of one or more r dimeric alkylketenes and their derivatives, fluorinated phosphates, anhydrides of fatty- (. chain carboxylic acids, certain polyurethanes, and styrene/ maleic anhydride copolymers.
It is preferable to use dimeric alkylketenes and - Ί carboxylic acid anhydrides. The quantity to be used depends » on the properties desired in the paper or cardboard. j Advantageously, the quantity does not exceed 10 parts per 100 parts of cellulose fibres, and preferably from 0.1 to 2 5 parts.
The sizing agent is preferably added before the aluminium polychloride.
Customary additives, such as colourants, can also be added to the suspension before the formation of the sheet.
Another advantage of the invention, in addition to the good mechanical properties obtained, is that there is a large decrease in the suspended matter in the water collected under the filtering cloth during the formation of the sheet.
Another advantage of the invention results in the greater productivity of the papermaking machine and better internal cohesion.
The Examples which follow further illustrate the present invention.
EXAMPLE 1 (not according to the invention) Composition in the flow box: 100% waste paper Sizing agent: 0.15 parts dimeric alkylketene Operating characteristics of the papermaking 1 25 machine: ) Wire mesh, useful web width: 2.6m Basis weight : 190 g/mc Nature of the paper : liner for corrugated board Treatment after formation of the sheet: sur5 face spraying with natural starch. 1.4 parts of cationic starch are added per 100 parts of fibres.
Machine speed : 163 m/min Total retention : 79X Mullen burst factor : 2.75 (according to AFNOR standard NF Q 03053) pH (in flow box) : 7.2 EXAMPLE 2 (according to the invention) The procedure is as in Example 1 but, in addition, before the flow box, an aluminium polychloride is added in the proportion of 0.15 part, expressed as AI2O3, per 100 parts of cellulose fibres.
The following are obtained: Machine speed : 200 m/min Total retention : 85X Mullen : 3.09 pH (in flow box) : 7.2 EXAMPLE 3 (according to the invention) The procedure is as in Example 2 but, by adding 0.16 part of aluminium polychloride, as in Example 2, per 100 parts of cellulose fibres, the following are obtained:

Claims (13)

1. Process for manufacturing paper or cardboard, , in which the following are incorporated in the suspension containing the cellulose fibres, before the paper or 5 cardboard sheet is formed: a) at least 0.5 part of cationic starch per 100 parts of cellulose fibres, and b) less than 1 part of an aluminiixn polychloride (as hereinbefore defined), expressed as Al 2 0 3 , per 100 parts of cellulose fibres. 10
2. Process according to claim 1, in which the aluminium polychloride is a basic aluminium polychlorosulphate .
3. Process according to claim 1 or 2, in which from 0.5 to 5 parts of cationic starch per 100 parts of 15 cellulose fibres are incorporated.
4. Process according to claim 3, in which from 0.7 to 2 parts of cationic starch are incorporated.
5. Process according to any ene of claims 1 to 4, in which fran 0.02 to 0.3 parts of aluniniun pbLychloride, expressed 20 as AljOj, is incorporated.
6. Process according to any one of the preceding claims in which a sizing agent is also incorporated in the suspension. f i
7. Process according to claim 6, in which the 1 sizing agent is a dimeric alkylketene or a carboxylic acid J anhydride. j
8. Process according to.claim 6 or 7, in which 5 less than 10 parts of sizing agent is incorporated per 100 parts of cellulose fibres.
9. Process according to claim 8, in which from 0.1 to 2 parts of sizing agent is incorporated.
10. Process according to any one of claims 1 to 9 10 in which at least one polyacrylamide, polyethylenimine, carboxymethylcellulose, urea-formaldehyde resin, melamineformaldehyde resin, aminopolyamide-epichlorohydrin resin or polyamide-epichlorohydrin resin is also incorporated into the suspension. 15
11. Process according to any one of the preceding claims, in which the aluminium polychloride is incorporated after the cationic starch.
12. Process according to claim 1 substantially as described in Example 2 or 3. 20
13. paper or cardboard whenever manufactured by a process as claimed in any one of the preceding claims.
IE84188A 1987-03-23 1988-03-22 Process for manufacturing wrapping paper and cardboard IE60108B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8704002A FR2612960B1 (en) 1987-03-23 1987-03-23 PROCESS FOR THE MANUFACTURE OF PACKAGING PAPER AND CARDBOARD BY ADDITION TO THE FIBROUS SUSPENSION OF CATIONIC STARCH AND ALUMINUM POLYCHLORIDE

Publications (2)

Publication Number Publication Date
IE880841L IE880841L (en) 1988-09-23
IE60108B1 true IE60108B1 (en) 1994-06-01

Family

ID=9349311

Family Applications (1)

Application Number Title Priority Date Filing Date
IE84188A IE60108B1 (en) 1987-03-23 1988-03-22 Process for manufacturing wrapping paper and cardboard

Country Status (13)

Country Link
EP (1) EP0285486B2 (en)
JP (1) JPH0723596B2 (en)
AT (1) ATE56493T1 (en)
CA (1) CA1324704C (en)
DE (1) DE3860586D1 (en)
DK (1) DK171149B1 (en)
ES (1) ES2018079T5 (en)
FI (1) FI94971C (en)
FR (1) FR2612960B1 (en)
GR (2) GR3001183T3 (en)
IE (1) IE60108B1 (en)
NO (1) NO174012C (en)
PT (1) PT87043B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02293493A (en) * 1989-04-28 1990-12-04 Arakawa Chem Ind Co Ltd Sizing agent for ketene dimer-based paper making
FR2678961B1 (en) * 1991-07-12 1993-10-15 Atochem NEW PROCESS FOR THE MANUFACTURE OF PAPER AND THE PAPER THUS OBTAINED.
IT1271003B (en) * 1994-09-08 1997-05-26 Ausimont Spa HIGH MECHANICAL RESISTANCE PAPER AND CARDBOARD PRODUCTION PROCESS
FR2732368B1 (en) * 1995-03-31 1997-06-06 Roquette Freres NEW PAPERMAKING PROCESS
FR2743810B1 (en) 1996-01-23 1998-04-10 Roquette Freres MODIFIED CATIONIC POLYSACCHARIDES, BONDING COMPOSITIONS CONTAINING THEM AND METHODS FOR BONDING PLANAR STRUCTURES USING THE SAME
CN114673025B (en) 2016-06-01 2023-12-05 艺康美国股份有限公司 High-efficiency strength scheme for papermaking in high-charge-demand systems
CN109468886A (en) * 2018-12-27 2019-03-15 东莞市江高包装材料有限公司 A kind of production technology of wrapping paper

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5374118A (en) * 1976-12-09 1978-07-01 Toa Gosei Chem Ind Additives for paper making
FR2418297A1 (en) * 1978-02-27 1979-09-21 Ugine Kuhlmann IMPROVEMENT OF PAPER AND BOARD MANUFACTURING PROCESSES
JPS59199900A (en) * 1983-04-18 1984-11-13 三菱製紙株式会社 Neutral paper
JPS60185899A (en) * 1984-03-05 1985-09-21 三菱製紙株式会社 acid-free paper
SE8405260L (en) * 1984-10-22 1986-04-23 Eka Ab HYDROPHOBING AGENTS FOR ORGANIC FIBERS, Separate CELLULOS FIBERS, SET TO MAKE THIS AGENT AND THE USE OF THE MELD HYDROPHOBING AGENT

Also Published As

Publication number Publication date
GR3001183T3 (en) 1992-06-30
NO174012C (en) 1994-03-02
CA1324704C (en) 1993-11-30
FI881368A0 (en) 1988-03-22
EP0285486A1 (en) 1988-10-05
JPH0723596B2 (en) 1995-03-15
ES2018079T5 (en) 1998-02-16
PT87043B (en) 1992-07-31
DK154688D0 (en) 1988-03-22
PT87043A (en) 1988-04-01
FI94971B (en) 1995-08-15
ATE56493T1 (en) 1990-09-15
EP0285486B1 (en) 1990-09-12
DE3860586D1 (en) 1990-10-18
DK154688A (en) 1988-09-24
NO881030L (en) 1988-09-26
FR2612960A1 (en) 1988-09-30
DK171149B1 (en) 1996-07-01
FI881368L (en) 1988-09-24
FR2612960B1 (en) 1989-06-16
ES2018079B3 (en) 1991-03-16
FI94971C (en) 1995-11-27
NO881030D0 (en) 1988-03-08
JPS63256795A (en) 1988-10-24
IE880841L (en) 1988-09-23
GR3026342T3 (en) 1998-06-30
NO174012B (en) 1993-11-22
EP0285486B2 (en) 1997-12-17

Similar Documents

Publication Publication Date Title
CA2073610C (en) Papermaking process and paper thus obtained
US4470877A (en) Paper having calcium sulfate mineral filler for use in the production of gypsum wallboard
KR920010649B1 (en) Restraint Method
US4548676A (en) Paper having calcium sulfate mineral filler for use in the production of gypsum wallboard
CA1097467A (en) Mineral fillers
US4964954A (en) Process for the production of paper
US5470435A (en) Process for preparing water soluble polyaluminosilicates
US4448639A (en) Mineral fiber-containing paper for the production of gypsum wallboard product prepared therewith
DE69207436T2 (en) POLYSILICATE MICROGELS AS RESTRAINT / DEWATERING AIDS IN PAPER PRODUCTION
NZ206000A (en) Paper containing a cyclic dicarboxylic acid anhydride as a neutral internal sizing agent and its use in the production of gypsum wallboard
EP0660899A1 (en) METHOD FOR PRODUCING PAPER.
AU727134B2 (en) Paper making process
US5595630A (en) Process for the manufacture of paper
IE60108B1 (en) Process for manufacturing wrapping paper and cardboard
US4174998A (en) Preflocculated filler compositions for use in the manufacture of paper
FI94972B (en) Improvement of paper-making procedures
JP2607161B2 (en) Paper manufacturing method
US5891305A (en) Process for the manufacture of paper
JPS62199898A (en) Production of neutral paper
JPH04300386A (en) Production of paper filled with hydroxyapatite whisker
CA1220904A (en) Paper having calcium sulfate mineral filler for use in the production of gypsum wallboard

Legal Events

Date Code Title Description
MM4A Patent lapsed