CN1112623A - Lanminate base stock - Google Patents
Lanminate base stock Download PDFInfo
- Publication number
- CN1112623A CN1112623A CN95104692A CN95104692A CN1112623A CN 1112623 A CN1112623 A CN 1112623A CN 95104692 A CN95104692 A CN 95104692A CN 95104692 A CN95104692 A CN 95104692A CN 1112623 A CN1112623 A CN 1112623A
- Authority
- CN
- China
- Prior art keywords
- lanminate
- base stock
- pulp
- laminated board
- bleaching
- 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
Links
- 238000001179 sorption measurement Methods 0.000 claims abstract description 19
- 150000001768 cations Chemical class 0.000 claims abstract description 18
- 239000002655 kraft paper Substances 0.000 claims abstract description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 10
- 229920001131 Pulp (paper) Polymers 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 11
- 239000011121 hardwood Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims 1
- 238000013508 migration Methods 0.000 abstract description 21
- 230000005012 migration Effects 0.000 abstract description 21
- 229910052709 silver Inorganic materials 0.000 abstract description 2
- 239000004332 silver Substances 0.000 abstract description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 239000002585 base Substances 0.000 description 22
- 238000004061 bleaching Methods 0.000 description 22
- 241001465754 Metazoa Species 0.000 description 20
- 238000000034 method Methods 0.000 description 20
- 239000000123 paper Substances 0.000 description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 10
- 238000009835 boiling Methods 0.000 description 10
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 10
- 239000003513 alkali Substances 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 239000004155 Chlorine dioxide Substances 0.000 description 5
- 235000019398 chlorine dioxide Nutrition 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 244000166124 Eucalyptus globulus Species 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 3
- 238000005341 cation exchange Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000010411 cooking Methods 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
- 230000000694 effects Effects 0.000 description 2
- 238000009897 hydrogen peroxide bleaching 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
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 2
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical compound C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 description 1
- REPVLJRCJUVQFA-UHFFFAOYSA-N (-)-isopinocampheol Natural products C1C(O)C(C)C2C(C)(C)C1C2 REPVLJRCJUVQFA-UHFFFAOYSA-N 0.000 description 1
- 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
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-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
- 241000370738 Chlorion Species 0.000 description 1
- 240000008395 Elaeocarpus angustifolius Species 0.000 description 1
- 240000006361 Eucalyptus saligna Species 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
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 240000002044 Rhizophora apiculata Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 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
- 229940116229 borneol Drugs 0.000 description 1
- CKDOCTFBFTVPSN-UHFFFAOYSA-N borneol Natural products C1CC2(C)C(C)CC1C2(C)C CKDOCTFBFTVPSN-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- DTGKSKDOIYIVQL-UHFFFAOYSA-N dl-isoborneol Natural products C1CC2(C)C(O)CC1C2(C)C DTGKSKDOIYIVQL-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 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
- 244000005700 microbiome Species 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- -1 phenolic aldehyde Chemical class 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
- 239000002994 raw material Substances 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
- 238000009898 sodium hypochlorite bleaching Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 238000005406 washing Methods 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 purpose of the invention is to obtain a substratum for a laminate, having excellent silver migration-resistant suitability and excellent dimensional stability, by laminating a bleached kraft pulp of broad-leaf tree having functions of less than 5.0meq/100g cation adsorption ability, if needed, residual chloride ion concentration is less than 100ppm and flex degree is less than 15.
Description
The present invention relates to a kind of Lanminate base stock, it can be used for preparing electrology characteristic, the particularly anti-laminated board that silver-colored 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 requiring with the laminated board of paper substrates.Need anti-silver-colored animal migration and the fabulous Lanminate base stock of DIMENSIONAL STABILITY especially.
Though the method for the laminated board that more known productions are used to address the above problem, these methods have the method (Japan is without the patent announcement Hei 3-164242 and the Hei 3-138151 of examination as to substances) that reduces survivor ion concentration in the laminated board, reduce the method (Japan is without the patent announcement Sho 62-191597 of examination as to substances) of survivor ion concentration in the Lanminate base stock in addition, but these methods 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 can there be 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.Yet the fibre length of these paper pulp is longer, and fiber is very curved, therefore with regard to having produced the laminated board DIMENSIONAL STABILITY is had the negative effect problem.
The problem that the present invention need solve is to determine the allowed band of Lanminate base stock CATION adsorption capacity, if required, also further determines 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 the unlikely DIMENSIONAL STABILITY that influences laminated board under the situation of above-mentioned condition.
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, the CATION adsorption capacity is reduced to is not more than 5.0meq/100g paper pulp, the residual chlorine ion concentration can also be controlled at the concentration that is not higher than 100ppm if necessary, purpose of the present invention just can be realized effectively.
Above-mentioned ion adsorption capacity is meant the adsorption of metal ions ability on CATION such as carboxyl and the sulfonyl adsorption group in paper pulp such as sodium, potassium, calcium, magnesium and iron.Therefore, need be controlled at the CATION adsorption capacity as far as possible and approach 0.0meq/100g paper pulp.Its lower limit is not limited especially, but from the viewpoint of reality, it is about 0.01meq/100g paper pulp.
In addition, even in paper-making process, can reduce cations, but as long as there is the cationic ability of absorption, in the production of laminated board and process, still have and adsorb cationic possibility again.Say in particular, for the laminated board of the anti-silver-colored animal migration of needs, body paper often needs to handle (Japan is without the patent announcement Hei 4-168043 of substantive examination) with water-soluble phenolic resin.Therefore, relevant with CATION adsorption capacity characteristic is just very important.
Work as Na
+When being adsorbed on the CATION adsorption capacity and being on all adsorption groups of paper pulp of 5.0meq/100g, Na
+The concentration of ion in paper pulp is equivalent to 1.20ppm.If make it be lower than this value, anti-silver-colored animal migration obviously improves.In addition, when the CATION adsorption capacity surpassed 5.0meq/100g paper pulp, anti-silver-colored animal migration just obviously reduced, and the result can not obtain good electrology characteristic.
For CATION energy of adsorption force measurement, though the measuring method of carboxylic acid residues, measuring method of sulfonic acid moieties or the like are known, but adopt the measuring method of the carboxylic acid residues that proposes in the Tappi standard method, just can think and synthetically measure almost total CATION adsorption capacity.
The group of adion can increase along with the increase of remaining this quality.This is because the cause that sulfonyl increases, and the K value that is to use in the present invention is 10 or littler of the paper pulp of 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, carry out boiling under the chemical additive condition of employing lower temperature and higher concentration, can produce suitable paper pulp.
The formation of carboxyl occurs in its usefulness oxygen stage, hydrogen peroxide stage, uses the clorox stage etc. in the bleaching process, particularly uses the hypochlorous stage by control, can suppress the formation of carboxyl effectively.
Chlorion can be accelerated the ionization of silver, is considered to resist silver-colored animal migration and has a negative impact.Therefore, need chlorine ion concentration is reduced to 0ppm as far as possible.Though lower limit is not particularly limited, from the viewpoint of reality, lower limit is about 0.01ppm.
In the present invention, what adopt is some chlorine-free bleaching methods, as ozone bleaching, alkali/hydrogen peroxide bleaching and microorganism bleaching etc., or employing less chlorine bleaching (adding a spot of chlorine this moment), so just the concentration of residual chlorine ion in the Lanminate base stock is reduced to and is not higher than 100ppm, 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 100ppm, anti-silver-colored animal migration 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 the DIMENSIONAL STABILITY of height 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 Hei 2-175996).Therefore, improved conditions of cooking and conditions of bleaching in the present invention, produced deflection degree and be not more than 15 Lanminate base stock, the DIMENSIONAL STABILITY of this body paper is very good.So just reached purpose of the present invention.Lower limit as for deflection degree then is not particularly limited, but in fact is about 0.1.
Now, in order to produce above-mentioned paper pulp with easy method and the timber raw material to be studied.After relatively the national various timber varieties of Japan promptly stung ash, U.S.'s state mangrove wood, Da Hua borneol trees and eucalyptus wood, eucalyptus wood was effective making on the good laminated board of electrology characteristic and dimensionally stable.In particular, use E.grandis, E.camldulensis and E.Saligna, just can the little Lanminate base stock of production CATION adsorption capacity, this is that so boiling easily, the content of cellulose of these timber is also lower because these wood lignin content are lower and its molecular weight is also less.
The method according to this invention, anti-silver-colored animal migration of laminated board and DIMENSIONAL STABILITY are improved.Reason is to have reduced cation exchange group in Lanminate base stock, if necessary, has further reduced residual chlorine ion wherein.Like this, 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 15 fibers straight, DIMENSIONAL STABILITY is also fine.
Embodiment
The following examples have shown effect of the present invention, yet the present invention also is confined to these embodiment.
Embodiment 1
The eucalyptus bits in South Africa are originated from use, and are as shown in table 1, carry out the boiling of brown paper under the condition that comparison is lower than embodiment 1 temperature and chemical additive is more, are 8 unbleached pulp (UKP) to obtain the K value.For obtaining the sulfate pulp (BKP) of bleaching, this UKP bleaches through the less chlorine bleaching method with oxygen, alkali/hydrogen peroxide and chlorine dioxide.Use this BKP, can obtain base unit weight is 135g/m
2With density be 0.5g/cm
3The write by hand ph test paper ph of Lanminate base stock, dipping advances commercially available pure molten phenolic aldehyde (trade name BLS-3122 originates from Showa Highpolymer Co., and Ltd), and in addition drying is made pre-impregnated paper in the write by hand ph test paper ph of these body paper.Then, all put the Copper Foil that scribbles adhesive on the two sides of 8 layers of pre-impregnated paper of superposition, and at 155 ℃, 100kg/cm
2Condition under heating and mould pressing 60 minutes.Still keep under the pressurized state cooling after 30 minutes, obtaining resin content and be 50%, plate thickness is the laminated board of the two-sided covering Copper Foil of 1.6mm.
Lanminate base stock that obtains in this way and laminated board characteristic are as shown in table 1, and as known from Table 1, anti-silver-colored animal migration is improved, and DIMENSIONAL STABILITY remains unchanged.
Embodiment 2
The hardwood bits of Hokkaido are originated from use, in the temperature of embodiment 3 as shown in table 1 than the boiling of carrying out kraft pulp under the low condition, obtain K value and be 10 without the paper pulp of bleaching (UKP).This UKP carries out the multistage bleaching with oxygen, alkali/hydrogen peroxide and chlorine dioxide, has obtained the kraft pulp (BKP) of bleaching.Use this BKP, obtain the laminated board of similar embodiment 1.
The Lanminate base stock that obtains in this way and the characteristic of laminated board are as shown in table 1, and as known from Table 1, anti-silver-colored animal migration is improved, and DIMENSIONAL STABILITY remains unchanged.
The comparative example 1
The eucalyptus bits in South Africa are originated from use, and are as shown in table 1, carry out the boiling of kraft pulp under and situation that chemical additive is less more higher than embodiment 1 temperature, obtain the K value and be 8 unbleached paper pulp (UKP).This UKP is bleached through the less chlorine bleaching method with oxygen, alkali/hydrogen peroxide and chlorine dioxide, and the result has obtained the kraft pulp (BKP) of bleaching.Use this BKP, obtain being similar to the laminated board of embodiment 1.
The Lanminate base stock that obtains in this way and the characteristic of laminated board are as shown in table 1.As table 1 as can be known, because the increase of CATION adsorption capacity is compared with 2 with embodiment 1, its anti-silver-colored animal migration is not enough.
The comparative example 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 than the less condition of embodiment 2 chemical additives, make the K value and be 13 unbleached pulp (UKP).This UKP bleached with oxygen, chlorine, alkali, clorox and chlorine dioxide multistage, the kraft pulp that the result obtains bleaching (BKP).Obtained being similar to the laminated board of embodiment 1 with this BKP.
The Lanminate base stock that obtains in this way and the characteristic of laminated board are as shown in table 1.As known from Table 1, because compare the increase of cation exchange capacity (CEC) and residual chlorine ion concentration with 2 with embodiment 1, anti-silver-colored animal migration is not enough.
The comparative example 3
As shown in table 1, with the hardwood bits that originate from Hokkaido, except that boiling temperature is higher, under the condition similar, carry out the boiling of kraft pulp to embodiment 1, obtain the K value and be 10 unbleached pulp (UKP).This UKP has carried out less chlorine bleaching with oxygen, alkali/hydrogen peroxide and chlorine dioxide, the kraft pulp that the result obtains bleaching (BKP).Use this BKP, obtain being similar to the laminated board of embodiment 1.
The Lanminate base stock that obtains in this way and the characteristic of laminated board are as shown in table 1.As known from Table 1, compare with 2 with embodiment 1, the deflection degree of cation exchange capacity (CEC) and fiber is all bigger, and its anti-silver-colored animal migration and DIMENSIONAL STABILITY also are not enough.
Table 1
* 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:
The fiber deflection degree=(Lt-Ls)/(Ls) * 100
* 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).
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 fine, 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 (3)
1, a kind of Lanminate base stock is characterized in that it is to adopt hardwood kraft pulp to make, and the CATION adsorption capacity of this paper pulp is being not less than 0.01meq/100 paper pulp to being not more than between the 5.0meq/100 paper pulp.
2, Lanminate base stock as claimed in claim 1 is characterized in that the residual chlorine ion concentration is being not less than 0.01ppm to being not more than between the 100ppm in the used bleached hardwood kraft slurry.
3,, it is characterized in that the deflection degree of fiber in the hardwood kraft pulp is being not less than 0.1 to being not more than between 15 as claim 1 and 2 described Lanminate base stocks.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP108942/94 | 1994-04-25 | ||
| JP6108942A JP2764536B2 (en) | 1994-04-25 | 1994-04-25 | Base paper for laminated board |
| JP108942/1994 | 1994-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1112623A true CN1112623A (en) | 1995-11-29 |
| CN1073651C CN1073651C (en) | 2001-10-24 |
Family
ID=14497563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95104692A Expired - Fee Related CN1073651C (en) | 1994-04-25 | 1995-04-25 | Lanminate base stock |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP2764536B2 (en) |
| KR (1) | KR100359679B1 (en) |
| CN (1) | CN1073651C (en) |
| FI (1) | FI102689B1 (en) |
| MY (1) | MY121914A (en) |
| TW (1) | TW358841B (en) |
Family Cites Families (3)
| 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 |
| JPH03138151A (en) * | 1989-10-25 | 1991-06-12 | Hitachi Chem Co Ltd | Laminated board |
-
1994
- 1994-04-25 JP JP6108942A patent/JP2764536B2/en not_active Expired - Fee Related
-
1995
- 1995-04-21 FI FI951916A patent/FI102689B1/en active
- 1995-04-24 MY MYPI95001059A patent/MY121914A/en unknown
- 1995-04-24 KR KR1019950009564A patent/KR100359679B1/en not_active IP Right Cessation
- 1995-04-24 TW TW084104015A patent/TW358841B/en not_active IP Right Cessation
- 1995-04-25 CN CN95104692A patent/CN1073651C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FI102689B (en) | 1999-01-29 |
| JPH07300791A (en) | 1995-11-14 |
| FI102689B1 (en) | 1999-01-29 |
| FI951916A0 (en) | 1995-04-21 |
| KR100359679B1 (en) | 2003-02-07 |
| KR950032897A (en) | 1995-12-22 |
| CN1073651C (en) | 2001-10-24 |
| MY121914A (en) | 2006-03-31 |
| TW358841B (en) | 1999-05-21 |
| FI951916A (en) | 1995-10-26 |
| JP2764536B2 (en) | 1998-06-11 |
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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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20011024 Termination date: 20120425 |