CN1120100A - Laminate base stock - Google Patents
Laminate base stock Download PDFInfo
- Publication number
- CN1120100A CN1120100A CN95104471A CN95104471A CN1120100A CN 1120100 A CN1120100 A CN 1120100A CN 95104471 A CN95104471 A CN 95104471A CN 95104471 A CN95104471 A CN 95104471A CN 1120100 A CN1120100 A CN 1120100A
- Authority
- CN
- China
- Prior art keywords
- base stock
- pulp
- bleaching
- laminated board
- paper
- 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
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- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 22
- 150000001768 cations Chemical class 0.000 claims abstract description 18
- 238000001179 sorption measurement Methods 0.000 claims abstract description 18
- 239000002655 kraft paper Substances 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 239000011121 hardwood Substances 0.000 claims abstract description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 7
- 238000013508 migration Methods 0.000 abstract description 21
- 230000005012 migration Effects 0.000 abstract description 21
- 239000000123 paper Substances 0.000 abstract description 15
- 229910052709 silver Inorganic materials 0.000 abstract description 3
- 239000004332 silver Substances 0.000 abstract description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 description 23
- 239000002585 base Substances 0.000 description 21
- 241001465754 Metazoa Species 0.000 description 19
- 238000000034 method Methods 0.000 description 14
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 10
- 239000003513 alkali Substances 0.000 description 10
- 238000009835 boiling Methods 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000000460 chlorine Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 239000004155 Chlorine dioxide Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 235000019398 chlorine dioxide Nutrition 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 241000370738 Chlorion Species 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000010411 cooking Methods 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 239000011575 calcium Substances 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RLLPVAHGXHCWKJ-IEBWSBKVSA-N (3-phenoxyphenyl)methyl (1s,3s)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylate Chemical compound CC1(C)[C@H](C=C(Cl)Cl)[C@@H]1C(=O)OCC1=CC=CC(OC=2C=CC=CC=2)=C1 RLLPVAHGXHCWKJ-IEBWSBKVSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical class Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000009898 sodium hypochlorite bleaching Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
- D21H11/04—Kraft or sulfate 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
Abstract
The invention aims at providing a piece-shaped base paper with excellent silver migration resistance performance and size stability. The piece-shaped base paper is made of hardwood kraft paper pulp. The adsorption capability of the cation of the paper pulp is less than 8.0meq; the consistency of the residual chloride ion is less than 50ppm. If required, the deflection of the fibre is less than 10.
Description
The present invention relates to a kind of Lanminate base stock, it can be used for preparing electrology characteristic, the laminated board that particularly anti-Ag animal migration is fine and DIMENSIONAL STABILITY is fabulous.
The Lanminate base stock that is mainly used in the printed circuit base material is handled with phenolic resins, mylar etc.In recent years, along with the multifunction and highly denseization of electronic instrument, through hole copper facing and through hole are silver-plated more and more, and this has good reliability with regard to the laminated board that requires paper substrates.Need anti-silver-colored animal migration and the fabulous Lanminate base stock of DIMENSIONAL STABILITY especially.
People know the method (Japan is without the patent announcement Hei3-164242 and the Hei3-138151 of examination as to substances) that reduces survivor ion concentration in the laminated board, and the method patent announcement Sho62-191597 of examination as to substances (Japan without) of survivor ion concentration in the minimizing Lanminate base stock, they can be used to produce the laminated board that addresses the above problem, but also do not obtain the result of enough satisfaction.In more detail, for CATION,, because absorption position arranged, in the production of laminated board and process, also have the possibility of bringing metal ion into even in paper-making process, can fully remove through steps such as washings.
In addition, once made the paper substrates of high-quality with the sulfite pulp that dissolves cork, velveteen etc., its anti-silver-colored animal migration has had raising.Therefore yet the fibre length of these paper pulp is longer, and fiber is very crooked, has just had the laminated board DIMENSIONAL STABILITY problem that has a negative impact.
The problem that the present invention need solve is to determine the allowed band of the CATION adsorption capacity of Lanminate base stock, also will determine the allowed band of chlorine ion concentration, and these two it seems that anti-silver-colored animal migration is relevant especially in the electrology characteristic with laminated board.In addition, the problem to be solved in the present invention also has: determine the allowed band of paper pulp fiber morphological feature, make and satisfying under the situation of above-mentioned condition the not DIMENSIONAL STABILITY of disturbed zone pressing plate.
After understanding above-mentioned allowed band, the invention provides a kind of Lanminate base stock and a kind of method of producing it, so that make electrology characteristic and all fabulous laminated board of DIMENSIONAL STABILITY.
Because notice in the electrology characteristic of laminated board, anti-silver-colored animal migration and CATION adsorption capacity and residual chlorine ion concentration are closely related, so find, according to the present invention, the CATION adsorption capacity is reduced to is not more than 8.0meq/100g paper pulp and the residual chlorine ion concentration is controlled at the concentration that is not higher than 50ppm, purpose of the present invention just can be realized effectively.
Above-mentioned ion adsorption capacity is meant such as the ability on the cationoid adsorption group of the adsorption of metal ions of sodium, potassium, calcium, magnesium and iron carboxyl and sulfonyl in paper pulp.Therefore, for being controlled at the CATION adsorption capacity, the electrology characteristic that improves laminated board approaches 0.0meq/100g paper pulp as far as possible.Its lower limit is not limited especially, but in fact, it is about 0.01meq/100g paper pulp.
In addition, by reducing the CATION adsorption capacity, can not only prevent the CATION absorption in paper-making process, and can prevent the absorption in the manufacturing and processing work of laminated board.Specifically, for the laminated board that needs anti-Ag animal migration, usually being to flood (the open notification number No.Hei4-168043 of Japan Patent) with water miscible phenolic resins, therefore, is particular importance thereby the absorption of reduction CATION improves anti-this requirement of Ag animal migration.
Work as Na
+When being adsorbed on the CATION adsorption capacity and being on all adsorption groups of 8.0meq/100g paper pulp, Na
+The concentration of ion in paper pulp is equivalent to be 188ppm.If make it be lower than this value, anti-silver-colored animal migration is obviously improved.In addition, when the CATION adsorption capacity surpassed 8.0meq/100g paper pulp, anti-silver-colored animal migration just obviously reduced, and the result can not obtain good electrology characteristic.
Adopt the method for the measurement carboxylic acid residues that proposes in the Tappi standard method to measure the CATION adsorption capacity, can think that nearly all absorption cation capacity can both measure comprehensively.
The group of adion can increase along with the increase of residual lignin, and this is because the cause that sulfonyl increases.Being to use the K value in the present invention is 10 or littler paper pulp without bleaching, and it can obtain through high cooking.In addition, when producing above-mentioned paper pulp, if boiling temperature is too high, amorphous cellulose will increase, and the result makes and more be easy to generate carboxyl in bleaching process.In the present invention, under the chemical additive condition of relatively lower temp and higher concentration, carry out boiling, can produce suitable paper pulp.And if paper pulp is adopted more cruel conditions of bleaching, its CATION adsorption capacity can be higher, and this is unwished-for.
Chlorion can promote the ionization of silver, thereby promotes the migration of silver.Therefore, the concentration that need make chlorion is as far as possible near zero, but the lower limit that in fact uses is about 0.01ppm.
In the present invention, be not higher than 50ppm by using chlorine-free bleaching or less chlorine bleaching, the concentration of residual chlorine ion in the Lanminate base stock can being reduced to, its anti-silver-colored animal migration just obviously improves as a result.In addition, when the concentration of residual chlorine ion in the Lanminate base stock surpassed this value of 50ppm, anti-silver-colored animal migration just reduced very big, so just can not obtain good electrology characteristic.
The anti-fabulous laminated board of silver-colored animal migration is usually used in producing highdensity printed circuit, and therefore, the Lanminate base stock of Shi Yonging also must have very big DIMENSIONAL STABILITY for this reason.People know: when the deflection degree of paper pulp fiber reaches 15 or when higher, the DIMENSIONAL STABILITY of laminated board just obviously reduces (Japanese uncensored patent announcement Hei2-175996).Therefore, in the present invention conditions of cooking and conditions of bleaching have been done improvement, produced deflection degree and be not more than 10 Lanminate base stock, the DIMENSIONAL STABILITY of this body paper is very good.So just realized purpose of the present invention.Lower limit as for deflection degree then is not particularly limited, but in fact is about 0.1.
The method according to this invention, anti-silver-colored animal migration of laminated board and DIMENSIONAL STABILITY are improved.Its reason is to have reduced cation exchange group in the Lanminate base stock and remaining chlorion, so even apply high voltage under the condition of heating and humidity, the motion of ion can not take place yet.In addition, because use deflection degree to be not more than 10 fibers straight (if necessary), so DIMENSIONAL STABILITY is also fine.
Embodiment
Some following embodiment have shown effect of the present invention, yet the present invention also is confined to these embodiment.Embodiment 1
The hardwood bits of Hokkaido are originated from use, and (as shown in table 1) carried out the kraft pulp boiling under and condition that chemical additive is more lower than comparative examples 3 temperature, obtain the K value and be 10 unbleached pulp (UKP).This UKP carries out chlorine-free bleaching with oxygen and alkali/hydrogen peroxide, obtains the kraft pulp (BKP) of bleaching.Use this BKP, make basic weight 135g/m
2And density is 0.5g/cm
3The write by hand ph test paper ph of Lanminate base stock.Flood these raw paper sheets with commercially available pure dissolubility phenolic resins (Ltd. produces for article number BLS-3122, Showa Highpolymer Co.), drying makes pre-impregnated paper then.Then, the Copper Foil that scribbles adhesive is placed the two sides of 8 pre-impregnated paper of layer structure, repeatedly put, then at 155 ℃, 100kg/cm
2Hot moulding is 60 minutes under the condition.Still keeping under the pressurized state cooling after 30 minutes, having made pre-impregnated paper two sides wherein all has Copper Foil, and resin content is 50%, and plate thickness is the laminated board of 1.6mm.
The Lanminate base stock that obtains with this method and the characteristic of laminated board are listed in table 1.By table 1 as seen, anti-Ag animal migration is improved, and has kept DIMENSIONAL STABILITY simultaneously again.Embodiment 2
Use is from the hardwood of Hokkaido bits, as shown in table 1, carries out the boiling of kraft pulp under and condition that chemical additive is more lower than comparative examples 3 temperature, obtain K value and be 10 without the paper pulp of bleaching (UKP).This UKP carries out less chlorine bleaching with oxygen, alkali/hydrogen peroxide and chlorine dioxide, has obtained the kraft pulp (BKP) of bleaching.Use this BKP, make and EXAMPLE Example 1 similar laminated board.
The Lanminate base stock that obtains with this method and the performance of laminated board are listed in table 1.As shown in Table 1, anti-moving property of Ag has obtained raising, has kept DIMENSIONAL STABILITY simultaneously again.The comparative example 1
The hardwood bits of Hokkaido are originated from use, and are as shown in table 1, carry out the boiling of kraft pulp under and condition that chemical additive is more lower than comparative examples 3 temperature, obtain the K value and be 10 unbleached paper pulp (UKP).This UKP obtains the kraft pulp (BKP) of bleaching through carry out the multistage bleaching with oxygen, chlorine, alkali, clorox and chlorine dioxide.Use this BKP, make laminated board similar to Example 1.
The Lanminate base stock that makes with this method and the performance of laminated board are listed in table 1.By table 1 as seen, compare with 2 with embodiment 1, anti-Ag animal migration and DIMENSIONAL STABILITY are all good inadequately.Comparative examples 2
The hardwood bits of Hokkaido are originated from use, and are as shown in table 1, carry out the boiling of kraft pulp under and condition that chemical additive is more lower than comparative examples 3 temperature, obtain the K value and be 10 unbleached pulp (UKP).This UKP carries out less chlorine bleaching with oxygen, chlorine, alkali/hydrogen peroxide and chlorine dioxide, obtains the kraft pulp (BKP) of bleaching.But the used oxygen bleaching stage and the condition in hydrogen peroxide bleaching stage are more stronger than embodiment, in order that increase brightness.Use this BKP, make laminated board similar to Example 1.
The Lanminate base stock that obtains with this method and the performance of laminated board are listed in table 1.By table 1 as seen, compare with 2 with embodiment 1, DIMENSIONAL STABILITY is good inadequately.Comparative examples 3
The hardwood bits that Hokkaido is originated from use carry out the boiling of kraft pulp under the conditions shown in Table 1, acquire the K value and be 10 unbleached pulp (UKP).This UKP carries out chlorine-free bleaching with oxygen and alkali/hydrogen peroxide, thereby obtains the kraft pulp (BKP) of bleaching.Use this BKP, make laminated board similar to Example 1.
The Lanminate base stock that obtains with this method and the performance of laminated board are listed in table 1.By table 1 as seen, compare with 2 with embodiment 1, anti-Ag animal migration is good inadequately.
Table 1
| Embodiment | Comparative examples | ||||
| ????1 | ????2 | ????1 | ????2 | ????3 | |
| Conditions of cooking: | |||||
| Heating-up time (branch) | ????90 | ????90 | ????90 | ????90 | ????90 |
| Boiling temperature (℃) | ????155 | ????155 | ????155 | ????155 | ????165 |
| Retention time (branch) | ????50 | ????50 | ????50 | ????50 | ????50 |
| The adding rate * 1 (%) of effective alkali | ????23 | ????23 | ????23 | ????23 | ????15 |
| Conditions of bleaching: | |||||
| O 2Stage oxygen (kg/cm 2) * 2 alkali (%) | ????4.5 ????3.0 | ????4.0 ????2.0 | ????4.0 ????2.0 | ????4.5 ????3.0 | ????4.5 ????3.0 |
| C*3 chlorine (%) | ????- | ????- | ????2.2 | ????- | ????- |
| E/P stage alkali (%) * 4 hydrogen peroxide (%) | ????1.2 ????1.0 | ????1.2 ????1.0 | ????1.5 ????0.0 | ????1.2 ????1.5 | ????1.2 ????1.0 |
| H stage * 5 hypochlorites (%) | ????- | ????- | ????0.5 | ????- | ????- |
| D stage * 6 chlorine dioxide (%) | ????- | ????0.2 | ????0.4 | ????0.2 | ????- |
| The performance of Lanminate base stock and laminated board: | |||||
| Brightness (%) | ????60 | ????65 | ????88 | ????75 | ????60 |
| CATION adsorption capacity (meq/100g paper pulp) * 7 | ????7.0 | ????6.5 | ????5.0 | ????8.5 | ????12.0 |
| Survivor ion concentration Na +????(ppm)???????Ca 2+????????????????Cl - | ????170 ????300 ????25 | ????150 ????450 ????45 | ????100 ????500 ????250 | ????350 ????450 ????40 | ????400 ????700 ????20 |
| Fiber deflection degree * 8 | ????7.5 | ????8.0 | ????14 | ????12 | ????8.0 |
| Thermal expansion and constriction coefficient (10 -7deg -1)*9 | ???45/42 | ???47/44 | ?72/66 | ???50/47 | ???45/42 |
| Anti-Ag animal migration * 10 | ????2000 | ????2000 | ?1000 | ????1250 | ????500 |
* the adding rate of 1. effective alkalis: based on the alkali adding rate of paper pulp, with NaOH+1/2Na
2The S meter.
* 2.O
2Stage: the oxygen bleaching that under 100 ℃ and 10% pulp thickness, carries out 60 minutes.
* 3.C stage: under 50 ℃ and 3% pulp thickness, carry out 30 minutes chlorine bleaching.
* 4.E/P stage: the alkali/hydrogen peroxide bleaching that under 60 ℃ and 10% pulp thickness, carries out 60 minutes.
* 5.H stage: the sodium hypochlorite bleaching that under 45 ℃ and 10% pulp thickness, carries out 60 minutes.
* 6.D stage: the ClO 2 bleaching that under 75 ℃ and 10% pulp thickness, carries out 120 minutes.
* 7. CATION adsorption capacities: measure the CATION adsorption capacity according to carboxylic acid residues mensuration (Tappi standard law T237om-83).
* 8. fiber deflection degree: with the frotation of body paper, the fiber of grab sample amplifies through projection, and all fibres that shows is measured the air line distance (Ls) at its physical length (Lt) and fiber major axis two ends, and by following formula calculating:
* 9. thermal expansions and constriction coefficient: adopt tension load type dilatometer, thermal expansion between load is measured 50 ℃ to 150 ℃ under for 10g and 5 ℃/min of heating rate condition is making the contraction of measuring 150 ℃ to 50 ℃ under its natural cooling condition.
* 10. anti-silver-colored animal migrations: the test pattern (circuit width 1.0mm) of comb shape is printed on the surperficial of laminated board with silver-colored galvanoplastic and is 50 ℃ in temperature, humidity is under 95% the condition, the time before the applied voltage measurement that applies 50V on the two poles of the earth is short-circuited (hour).
Just as shown in table 1, the body paper that uses the embodiment of the invention 1 and 2 is as base material, and the anti-silver-colored animal migration of the laminated board of two sides folder copper is well, adopts specific boiling and conditions of bleaching when this body paper is made.In addition, the DIMENSIONAL STABILITY of these body paper is also fine.Therefore, body paper of the present invention has important industrial application value.
Claims (2)
1. a Lanminate base stock is characterized in that, is made by hardwood kraft pulp, and the CATION adsorption capacity of this paper pulp is 0.01-8.8meq/100g paper pulp, and remaining chlorine ion concentration is 0.01-50ppm.
2. Lanminate base stock as claimed in claim 1 is characterized in that, the deflection degree of fiber is 0.1-10 in the hardwood kraft pulp.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP110358/94 | 1994-04-26 | ||
| JP6110358A JP2764537B2 (en) | 1994-04-26 | 1994-04-26 | Base paper for laminated board |
| JP110358/1994 | 1994-04-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1120100A true CN1120100A (en) | 1996-04-10 |
| CN1074074C CN1074074C (en) | 2001-10-31 |
Family
ID=14533759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95104471A Expired - Fee Related CN1074074C (en) | 1994-04-26 | 1995-04-26 | Laminate base stock |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP2764537B2 (en) |
| KR (1) | KR100359680B1 (en) |
| CN (1) | CN1074074C (en) |
| FI (1) | FI102690B1 (en) |
| MY (1) | MY121936A (en) |
| TW (1) | TW260727B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62191597A (en) * | 1986-02-18 | 1987-08-21 | 王子製紙株式会社 | Base paper for laminated board |
| JPH02175996A (en) * | 1988-12-28 | 1990-07-09 | Sanyo Kokusaku Pulp Co Ltd | Raw paper for laminating board and production thereof |
-
1994
- 1994-04-26 JP JP6110358A patent/JP2764537B2/en not_active Expired - Fee Related
-
1995
- 1995-04-21 FI FI951917A patent/FI102690B1/en active
- 1995-04-24 MY MYPI95001060A patent/MY121936A/en unknown
- 1995-04-25 TW TW084104055A patent/TW260727B/en active
- 1995-04-25 KR KR1019950009692A patent/KR100359680B1/en not_active IP Right Cessation
- 1995-04-26 CN CN95104471A patent/CN1074074C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FI102690B (en) | 1999-01-29 |
| MY121936A (en) | 2006-03-31 |
| CN1074074C (en) | 2001-10-31 |
| JPH07300792A (en) | 1995-11-14 |
| KR100359680B1 (en) | 2003-02-11 |
| FI951917A0 (en) | 1995-04-21 |
| TW260727B (en) | 1995-10-21 |
| FI951917A (en) | 1995-10-27 |
| KR950032898A (en) | 1995-12-22 |
| FI102690B1 (en) | 1999-01-29 |
| JP2764537B2 (en) | 1998-06-11 |
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