CN1442579A - Neutral currency money paper and its paper making technology - Google Patents

Neutral currency money paper and its paper making technology Download PDF

Info

Publication number
CN1442579A
CN1442579A CN 03117599 CN03117599A CN1442579A CN 1442579 A CN1442579 A CN 1442579A CN 03117599 CN03117599 CN 03117599 CN 03117599 A CN03117599 A CN 03117599A CN 1442579 A CN1442579 A CN 1442579A
Authority
CN
China
Prior art keywords
paper
xylon
cotton fiber
neutral
bank
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.)
Granted
Application number
CN 03117599
Other languages
Chinese (zh)
Other versions
CN1208516C (en
Inventor
田德卿
黎富勤
陈玉群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Banknote Printing and Minting Corp
Original Assignee
China Banknote Printing and Minting Corp
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
Application filed by China Banknote Printing and Minting Corp filed Critical China Banknote Printing and Minting Corp
Priority to CN 03117599 priority Critical patent/CN1208516C/en
Publication of CN1442579A publication Critical patent/CN1442579A/en
Application granted granted Critical
Publication of CN1208516C publication Critical patent/CN1208516C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Paper (AREA)

Abstract

A neutral paper used for paper money is prepared from cotton fibres, wood fibres, titanium oxide, aluminium polychloride, polyamide epoxy chloropropane, and melamine for maldehyde resin. Its making process is also disclosed.

Description

Neutral bank-note paper and papermaking process thereof
Technical field:
The present invention is relevant with bank-note paper, and is special relevant with neutral bank-note paper and papermaking process thereof.
Background technology:
China is from 1860s voluntarily since the development and production bank-note paper, obtained many achievements that attract people's attention aspect the bank-note paper property giving, but in the production process of bank-note paper, adopted aluminum sulfate to regulate slurry pH value, make wet strength agent (being acid papermaking) always with melamine resin (abbreviation MF).Aluminum sulfate is the very extensive and cheap papermaking chemical product of a kind of purposes, and its main effect in papermaking is: improve filler and fines retention; In and the anion chaff interference; Regulate pH value of slurry etc.It is acid that aluminum sulfate solution is, the pH value from 3.25 (concentration is 10% solution) to 2.4 (concentration is 48.5% solution).If do not have other anion and aluminium ion to form complex compound, when the pH of solution value was lower than 3, aluminium ion was with Al (H 2O) 6 3+Be main existence form, along with the pH value of solution value raises, OH -The coordination ability of ion compares H 2The O molecule is strong, then Al 3+Ion and H 2The OH that the O molecular ionization goes out -Ion forming complex.Aluminum sulfate only uses just effective under acid condition, and the rely pH value scope of existence of the multinuclear aluminium complex of its formation is narrower.The production practices of decades prove that MF has played important function to the dried wet strength that improves paper, but acid papermaking causes the paper quality deterioration, poor durability, and equipment corrosion is serious, and the wastewater treatment difficulty is big, many drawbacks such as energy consumption height.The papermaking process of existing bank-note paper comprises: making beating, be in harmonious proportion, online is manufactured paper with pulp, predrying, top sizing, back drying, press polish, batch.
Summary of the invention:
The objective of the invention is in order to overcome above deficiency, provide a kind of and can change the existing present situation that paper paper pulp pH value is acidity of copying, the pH value of bank-note paper is neutrality or meta-alkalescence, and every physical index of paper reaches the neutral bank-note paper that row is issued standard and had good printing adaptability.Another object of the present invention is for a kind of papermaking process of neutral bank-note paper is provided.
The object of the present invention is achieved like this
The neutral bank-note paper of the present invention is by cotton fiber, xylon, titanium white, aluminium polychloride, the daiamid epoxy chloropropane, melamine resin is made, cotton fiber wherein, xylon is by weight percentage: cotton fiber 80~99%, xylon 1~20%, titanium white is a cotton fiber, 2.0~3.5% of xylon gross weight, aluminium polychloride is a cotton fiber, 0.5~2.0% of xylon gross weight, polymerization acid amides epoxychloropropane is a cotton fiber, 1.0~3.0% of xylon gross weight, melamine resin is a cotton fiber, 1.0~3.0% of xylon gross weight, cotton fiber, the xylon gross weight dry pulp amount of applauding, titanium white is a filler, aluminium polychloride (being called for short PAC) is a retention and drainage aid agent, daiamid epoxy chloropropane (being called for short PAE), melamine resin (being called for short MF) is a wet strength agent.
Cotton fiber, xylon are by weight percentage in the above-mentioned neutral bank-note paper: cotton fiber 95%, xylon 5%, titanium white, aluminium polychloride, daiamid epoxy chloropropane, melamine resin are respectively 3%, 1.0%, 2.0%, 2.0% of cotton fiber, xylon gross weight, and be better in the bank-note paper effect that this ratio is produced.
The papermaking process that neutrality of the present invention is copied ticket paper comprises that making beating, mediation, online are manufactured paper with pulp, predrying, top sizing, back drying, press polish, batch, add aluminium polychloride when it is characterized in that blending process and make the pH value that retention and drainage aid agent is regulated paper pulp, when operation is manufactured paper with pulp in online, add daiamid epoxy chloropropane and melamine resin as wet strength agent.
Aluminium polychloride (being called for short PAC) is a kind of water-soluble inorganic high molecular polymer between aluminium chloride and aluminium hydroxide, usually with general formula Al n(OH) m 3n-mRepresent that wherein n represents extent of polymerization, m represents the neutralisation degree of certain aluminium polychloride product, and promptly what of chlorion hydroxide ion replace.This shows, the aluminium polychloride representative be not a certain specific inorganic compound, but the general name of a series of complicated aluminium polymers.Related data shows, under identical total aluminium ion concentration or identical pH condition, the multinuclear aluminium complex content in the aluminum sulfate aqueous solution is far below the content (seeing Table 1) of multinuclear aluminium complex in the aluminium polychloride aqueous solution.
Table 1 PAC and Al 2(SO4) 3Effectively aluminium content relatively
Figure A0311759900041
By in the table as seen: aluminium polychloride can keep higher electropositive in neutrality even alkaline range, and does not resemble very fast formation Al (OH) the aluminum sulfate 3Precipitation is in the pH value under the condition of neutrality or meta-alkalescence, and aluminium polychloride can improve the retention of filler and fiber fines and improve the water filtering performance of slurry.Daiamid epoxy chloropropane (be called for short PAE) is to be adapted at the strong auxiliary agent of paper humidification that uses under neutrality or the alkalescence condition; PAE is water-soluble, cationic, thermosetting resin, produces the polyamide polyamines by adipic acid and the reaction of polyamines polyene generation acid amides, forms with the epoxychloropropane polymerization reaction take place again.Structural formula is:
Figure A0311759900051
PAE belongs to non-formaldehydes polymer; nonpoisonous and tasteless; the pH value scope of application is wider; in paste system; the positive charge of PAE and the negative electrical charge on the fiber attract each other; and the hydroxyl between PAE and adjacent fiber forms covalent bond, hydrogen bond etc.; make fiber surface adsorb a large amount of wet strength agents; when paper page drying position, be subjected to Temperature Influence, the wet strengthening resin generation condensation in the paper; and on fiber interface, be cross-linked into not by the resin network structure of water destruct; thereby the protection fiber is not subjected to the swollen of water, makes page have certain wet strength, has strengthened the dry strength of page simultaneously yet.
The neutral yarn ticket of the present invention paper has carried out medium-sized test and large-scale experiment:
One, medium-sized test
(1), Shi Yan process conditions
1. slurry blending: PAC sizes mixing, the pH value is between 7.0~8.0, and all the other are pressed 103-G technology and carry out
2. wet strength agent addition: PAE:2.0% (to the oven dry stock amount)
MF:2.0% (to the oven dry stock amount).
3. wet strength agent PAE add the implantation site: mixing column.
4. the pH value of online slurry: 7.0-8.0.
5. all the other process conditions are pressed the execution of 103-G series of products technology.
(2), three medium-sized test overviews
Test for the first time: finish on May 7th, 2000, trial target is the 103-G-7# bank-note paper; Entire test is comparatively smooth, but has a spot of foam to produce at paper machine mixing column and tailings feeder, in the net groove a spot of foam is arranged also simultaneously; The amount of manufacturing paper with pulp: 3.43 tons; Yield rate: 69.40%.
Test for the second time: finish 17 days~October 18 October in 2000, trial target is the 103-G-7# bank-note paper; According to situation about testing for the first time, after the adding appropriate amount of defoamer, the foam that is produced in the production process has obtained containment effectively in mixing column, and entire test is quite smooth; The amount of manufacturing paper with pulp: 18.597 tons; Yield rate: 80.36%.
Test for the third time: finish April 18 calendar year 2001, product is the 103-G-3# bank-note paper; The amount of manufacturing paper with pulp: 8.162 tons; Yield rate: 81.25%.
(3), the detection data of three tests see Table 2.
The detection data of three tests of table 2
Test period On May 7th, 2000 On October 17th, 2000 April 18 calendar year 2001
Quantitative g/m 2 ?????90.1 ?????89.7 ?????91.7
Thickness mm ?????0.112 ?????0.107 ?????0.109
Banner thickness difference mm ?????0.004 ?????0.003 ?????0.003
Pulling force N Vertical ?????113.1 ?????109.2 ?????112.3
Horizontal ?????58.8 ?????48.5 ?????46.4
Wet ?????28.6 ?????22.9 ?????22.8
Average fracture length m ?????6500 ?????6460 ?????5550
Wet strength % ?????33.5 ?????29.1 ?????28.7
Folding strength (two times) Vertical ?????3792 ?????2751 ?????2537
Horizontal ?????2492 ?????1733 ?????2073
On average ?????3142 ?????2142 ?????2305
Whiteness % ?????78.3 ?????79.8 ?????79.8
Opacity % ?????89.3 ?????88.5 ?????89.8
Moisture content % ?????5.8 ?????7.0 ?????6.1
Moisture content is poor ?????0.2 ?????0.1 ?????0.5
Dust/m 2 ?????11 ?????20 ?????20
Smoothness S Just ?????30 ?????30 ?????27
Instead ?????15 ?????14 ?????16
On average ?????23 ?????22 ?????21
Green deformation % Vertical ?????+0.05 ?????-0.14 ?????-0.16
Horizontal ?????+2.01 ?????+2.13 ?????+2.21
Deflection mN Vertical ?????95 ?????101 ?????113
Horizontal ?????52 ?????49 ?????66
Tearability mN ?????815 ?????766 ?????712
Water imbibition g/m 2 ?????22.1 ?????58.4 ?????52.2
Surface oil absorption % ?????49.4 ?????47.2 ?????45.6
Surface strength m/s ?????2.73 ?????2.38 ?????2.66
Become paper pH value ?????8.01 ?????7.4 ?????7.3
Detected temperatures, ℃ ?????20 ?????22.5 ?????23
Detect humidity, % ?????65 ?????50 ?????50
Each physical index of ph test paper ph all reaches the 103-G series standard, and all between 6.5-8.0, test has reached intended purposes to the pH value of one-tenth paper, has also established the reliable technique basis for large-scale experiment.
2, large-scale experiment
According to the written instructions of " about carrying out the letter that neutrality is copied the paper test and tried seal work " of (2002) No. 61 literary compositions of Yin Yinsheng skill paper, project team carries out " neutrality is copied paper " large-scale experiment on September 16th, 2002 in paper money paper division department of Chengdu Banknote Printing Complex, off-test on September 20.
(1), test technology condition
Identical with the pilot process condition.
(2), profile test
Large-scale experiment is produced 48 of neutral bank-note papers altogether, and the amount of manufacturing paper with pulp is 41.839 tons, and yield rate is 81.2%.Test accomplishes the end in view.
(3), the detection case of every physical index sees Table 3.
The detection data of table 3 large-scale experiment paper
Quantitative g/m 2 ?????89.9
Thickness mm ?????0.108
Banner thickness difference mm ?????0.002
Pulling force N Vertical ?????115.1
Horizontal ?????57.8
Wet ?????24.8
Average fracture length m ?????6200
Wet strength % ?????28.7
Folding strength (two times) Vertical ?????2553
Horizontal ?????2019
On average ?????2286
Whiteness % ?????79.6
Opacity % ?????89.2
Moisture content % ?????5.5
Moisture content is poor ?????0.1
Dust/m 2 ?????8
Smoothness S Just ?????32
Instead ?????10
On average ?????21
Green deformation % Vertical ?????+0.04
Horizontal ?????+2.21
Deflection mN Vertical ?????102
Horizontal ?????53
Tearability mN ?????735
Water imbibition g/m 2 ?????58.9
Surface oil absorption % ?????42
Surface strength m/s ?????2.55
Become paper pH value ?????7.48
Annotate: testing conditions: temperature: 23 ℃; Humidity: 50%
Each physical index of ph test paper ph all reaches the 103-G series standard.
(4) printing adaptability test
Shanghai Bank-Note-Printing Factory is mail in the written instructions of " copying the letter of paper test and the work of examination seal about carrying out neutrality " according to (2002) No. 61 literary compositions of the Yin Yinsheng of parent company skill paper, 10 tons of products, 10 tons of products mail to Nanchang Banknote Printing Plant and print test.
Shanghai Bank-Note-Printing Factory, Nanchang Banknote Printing Plant examination seal situation is as follows:
1. neutralized paper smooth appearance, the fluctuating waveform at watermark and safety line position is little, improves a lot than present ordinary production paper.
2. to contain damp rate even for paper.
3. the neutralized paper deflection is good, and printing machine flies to reach that defeated paper is normal, and the printing lines are bright and clean, and contracture paper is little, and the recessed chromatography of glue is normal.
4. the neutralized paper absorbency is better, and mass colour reaches the specimen page requirement.Ink setting is all right, and paper dry linting situation is better than the acidic paper of ordinary production.
5. neutralized paper printing finished product materialization assay conforms to the anti-materialization standard that parent company issues.
From to the print result of neutralized paper as can be known, the printing adaptability of paper is better.
The neutral bank-note paper of the present invention has changed the existing paper paper pulp pH value of copying and has been acid present situation, makes the pH value of its bank-note paper be neutrality or meta-alkalescence, and in the 6.5-8.0 scope, every physical index of paper reaches row and issues standard and have good printing adaptability as the pH value.Singly not that durability surpasses acidic paper, and have significant advantage at aspects such as whiteness, opacity, tensile strength, surface strength, environmental protection, resource make full use of.
The specific embodiment:
Embodiment 1:
Each set of dispense ratio in the present embodiment 1 neutral bank-note paper: cotton fiber, xylon be cotton fiber 95% by weight percentage, xylon 5%.Titanium white, aluminium polychloride, daiamid epoxy chloropropane, melamine resin are respectively 3%, 1.0%, 2.0%, 2.0% of cotton fiber, xylon gross weight (being the oven dry stock amount).
This papermaking process step of implementing 1 neutral bank-note paper is as follows:
1. making beating: cotton fiber, xylon are broken into qualified slurry;
2. be in harmonious proportion: in slurry, add aluminium polychloride in proportion and make the pH value of retention and drainage aid agent adjusting paper pulp between 6.5~8.0;
3. online is manufactured paper with pulp: add daiamid epoxy chloropropane, melamine resin as wet strength agent in proportion in the online slurry;
4. predrying;
5. top sizing;
6. the back is dry;
7. press polish;
8. batch, after check, promptly get qualified neutral bank-note paper.
Embodiment 2:
Each set of dispense ratio in the present embodiment 2 neutral bank-note papers: cotton fiber, xylon by weight percentage: cotton fiber 80%, xylon 20%.Titanium white, aluminium polychloride, daiamid epoxy chloropropane, melamine resin are respectively 2.0%, 0.5%, 1.0%, 1.0% of cotton fiber, xylon gross weight.
The papermaking process of present embodiment 2 and embodiment 1 are together.
Embodiment 3:
Each set of dispense ratio in the present embodiment 3 neutral bank-note papers: cotton fiber, xylon by weight percentage: cotton fiber 99%, xylon 1%, titanium white, aluminium polychloride, daiamid epoxy chloropropane, melamine resin are respectively 3.5%, 2%, 3.0%, 3.0% of cotton fiber, xylon gross weight.
The papermaking process of present embodiment 3 and embodiment 1 are together.

Claims (3)

1. neutral bank-note paper, it is characterized in that by cotton fiber, xylon, titanium white, aluminium polychloride, the daiamid epoxy chloropropane, melamine resin is made, cotton fiber wherein, xylon is by weight percentage: cotton fiber 80~99%, xylon 1~20%, titanium white is a cotton fiber, 2.0~3.5% of xylon gross weight, aluminium polychloride is a cotton fiber, 0.5~2.0% of xylon gross weight, the daiamid epoxy chloropropane is a cotton fiber, 1.0~3.0% of xylon gross weight, melamine resin are cotton fiber, 1.0~3.0% of xylon gross weight.
2. neutral bank-note paper as claimed in claim 1, it is characterized in that cotton fiber, xylon by weight percentage: cotton fiber 95%, xylon 5%, titanium white, aluminium polychloride, daiamid epoxy chloropropane, trimerization chloramines formaldehyde resin are respectively 3%, 1.0%, 2.0%, 2.0% of cotton fiber, xylon gross weight.
3. the papermaking process of neutral bank-note paper as claimed in claim 1 or 2, comprise that making beating, mediation, online are manufactured paper with pulp, predrying, top sizing, back drying, press polish, batch, add aluminium polychloride when it is characterized in that blending process and make the pH value that retention and drainage aid agent is regulated paper pulp, when operation is manufactured paper with pulp in online, add daiamid epoxy chloropropane and melamine resin as wet strength agent.
CN 03117599 2003-04-03 2003-04-03 Neutral currency money paper and its paper making technology Expired - Fee Related CN1208516C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03117599 CN1208516C (en) 2003-04-03 2003-04-03 Neutral currency money paper and its paper making technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03117599 CN1208516C (en) 2003-04-03 2003-04-03 Neutral currency money paper and its paper making technology

Publications (2)

Publication Number Publication Date
CN1442579A true CN1442579A (en) 2003-09-17
CN1208516C CN1208516C (en) 2005-06-29

Family

ID=27797170

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03117599 Expired - Fee Related CN1208516C (en) 2003-04-03 2003-04-03 Neutral currency money paper and its paper making technology

Country Status (1)

Country Link
CN (1) CN1208516C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101148851B (en) * 2007-11-01 2010-06-02 无烟国际文化发展(北京)有限公司 Green regeneration bank note
CN104631203A (en) * 2015-01-16 2015-05-20 淄博欧木特种纸业有限公司 Ultra-thin high-coverage raw impregnated paper and preparation method thereof
US10982391B2 (en) 2016-06-01 2021-04-20 Ecolab Usa Inc. High-efficiency strength program used for making paper in higher charge demand system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101148851B (en) * 2007-11-01 2010-06-02 无烟国际文化发展(北京)有限公司 Green regeneration bank note
CN104631203A (en) * 2015-01-16 2015-05-20 淄博欧木特种纸业有限公司 Ultra-thin high-coverage raw impregnated paper and preparation method thereof
US10982391B2 (en) 2016-06-01 2021-04-20 Ecolab Usa Inc. High-efficiency strength program used for making paper in higher charge demand system

Also Published As

Publication number Publication date
CN1208516C (en) 2005-06-29

Similar Documents

Publication Publication Date Title
DE69808338T2 (en) CREEPING ADHESIVES AND METHOD FOR PRODUCING CREPING PAPER
EP2938783B1 (en) Method of increasing paper strength by using natural gums and dry strength agent in the wet end
EP2319984B1 (en) Process for production of paper
RU2490388C2 (en) Method for improving optical properties of paper
CN1849425A (en) Anionic-cationic polymer blend for surface size
CN1145967A (en) Process for production of paper
CN1192256A (en) Synthetic cationic polymers as promoters for ASA sizing
US20160326698A1 (en) Methods, Processes, and Compositions for Treating Pulp
CN101263263A (en) Method for the production of paper, cardboard and card
CN105239451B (en) A kind of preparation method of paper grade (stock) mineral fibres
EP2334871B1 (en) Method for manufacturing paper, cardboard and paperboard using endo-beta-1,4 glucanases as dewatering means
CN1851123A (en) Glueing method for papermaking process
CN1208516C (en) Neutral currency money paper and its paper making technology
CN1919449A (en) Preparation method and use of cation guar gum graft copolymer retention and drainage agent
Shen et al. A review on the use of lignocellulose-derived chemicals in wet-end application of papermaking
US6565646B1 (en) Talc composition and use in paper products
CN103510429B (en) Compound flame-retardant paper-based material and preparation method thereof
CN1268599A (en) Pulp of paper for decoration use
CN1606647A (en) Aqueous silica-containing composition and process for production of paper
CN101225615A (en) Method for producing low weight newsprint by adding retention and drainage aids to 100% deinked waste paper pulp
CN102016172A (en) A printable product and a method for manufacturing a printable product
EP1831459B1 (en) Method for the production of paper, cardboard and card
CN111608014B (en) High-performance low-quantitative dictionary paper and preparation method thereof
EP2486186B1 (en) Process for production of wet strength paper
US20050178517A1 (en) Bulky paper

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20050629

Termination date: 20170403