CN100577414C - Carrying band material and carrying band - Google Patents
Carrying band material and carrying band Download PDFInfo
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- CN100577414C CN100577414C CN200410031886A CN200410031886A CN100577414C CN 100577414 C CN100577414 C CN 100577414C CN 200410031886 A CN200410031886 A CN 200410031886A CN 200410031886 A CN200410031886 A CN 200410031886A CN 100577414 C CN100577414 C CN 100577414C
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- 239000000463 material Substances 0.000 title claims abstract description 104
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 22
- 229920001131 Pulp (paper) Polymers 0.000 claims description 35
- 239000000126 substance Substances 0.000 claims description 31
- 239000012943 hotmelt Substances 0.000 claims description 28
- 239000002994 raw material Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000002788 crimping Methods 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- 239000005864 Sulphur Substances 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 11
- 238000000892 gravimetry Methods 0.000 claims description 4
- 230000004075 alteration Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 229910021653 sulphate ion Inorganic materials 0.000 abstract description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 abstract 1
- 239000002562 thickening agent Substances 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 81
- 239000010410 layer Substances 0.000 description 55
- 230000000052 comparative effect Effects 0.000 description 18
- 230000000694 effects Effects 0.000 description 17
- 239000000835 fiber Substances 0.000 description 16
- 239000011230 binding agent Substances 0.000 description 14
- 238000012545 processing Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 150000002500 ions Chemical class 0.000 description 10
- 238000001035 drying Methods 0.000 description 9
- 239000002002 slurry Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000005755 formation reaction Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000011049 filling Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 229920002401 polyacrylamide Polymers 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006664 bond formation reaction Methods 0.000 description 2
- 239000011111 cardboard Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- AHLWZBVXSWOPPL-RGYGYFBISA-N 20-deoxy-20-oxophorbol 12-myristate 13-acetate Chemical compound C([C@]1(O)C(=O)C(C)=C[C@H]1[C@@]1(O)[C@H](C)[C@H]2OC(=O)CCCCCCCCCCCCC)C(C=O)=C[C@H]1[C@H]1[C@]2(OC(C)=O)C1(C)C AHLWZBVXSWOPPL-RGYGYFBISA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 244000050510 Cunninghamia lanceolata Species 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- 241001602688 Pama Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 240000001416 Pseudotsuga menziesii Species 0.000 description 1
- 235000008572 Pseudotsuga menziesii Nutrition 0.000 description 1
- 241001480055 Quercus mongolica Species 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- 239000000356 contaminant Substances 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
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- 239000002344 surface layer Substances 0.000 description 1
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Abstract
The invention provides a carrier tape pasteboard base material mainly comprising a pulp material where electronic parts or the like which are surface mounted parts loaded do not deteriorate due to corrosion. In the carrier tape pasteboard base material that has a multilayered combination structure provided with a plurality of layers and each layer mainly comprises the pulp material, a pH on the surface is 6.0 to 8.0, a residual sulphate ion quantity is less than 500 ppm, a paper strength reinforcing agent of 1.0 to 8.0 pts.wt. and a thickener mainly comprising ethylene oxide of 0.1 to 1.0 pts.wt. are blended to the pulp material of 100 pts.wt. in each of the plurality of the layers, and a moistened paper regain just before pressing the parts is controlled to 75 to 80 wt%.
Description
[technical field]
The carrier band material and the carrier band that use when the present invention relates to load electronic unit more particularly, relate to carrier band material and carrier band that the electronic component that is loaded does not corrode deterioration.
[background technology]
In recent years, various technology of circuit board being installed automatically various electronic units are adopted in the manufacturing of various electronic equipments.Wherein, to the technology that various surface mounting assemblies are directly installed on the surface of circuit board, tangible progress has appearred in so-called surface mount board technology.
The general carrier band that uses the carrier band material to form during install on this surface.Carrier band material embodiment is held processing with die cavity part etc. as forming surface mounting assembly, not only surface mounting assembly is accommodated in the die cavity part, and after the surface of carrier band material seals bonding covering band, supplies with and use as carrier band.
Relevant carrier band material roughly is divided into two classes.One class is that plastic raw materials is the material of main component, and another kind of is that the pulp fiber of paper etc. is the material of main component.
Yet pulp fiber is the material of main component, has the problem of the corrosion such as this electron-like element of surface mounting assembly of being loaded.
[summary of the invention]
Therefore, major subjects of the present invention be to provide as the electronic component of the surface mounting assembly that is loaded etc. do not corrode deterioration, be the carrier band material of main component with the slurry feedstock.
The inventor finds that in order to solve the result that above-mentioned problem is concentrated on studies the aluminum sulfate that is engaged in the carrier band material is residual as sulfate ion, and surface mounting assembly corrodes because of this residual sulfate ion.That is, to cooperate paper power reinforcing agents between ply of paper in the intensity carrier band in a large number in order improving usually, but for this paper power reinforcing agent is stayed in the ply of paper effectively, to present the effect of paper power reinforcing agent, the pH that must make paper pulp is about 5, uses aluminum sulfate in order to regulate this pH.And find that residual reservation sulfate ion in the carrier band as end article has been finished the present invention based on this experience owing to use this aluminum sulfate.
That is, the present invention who solves above-mentioned problem be have the multilayer that possesses multilayer to copy to close structure, each layer is the carrier band material of main component with paper pulp raw material separately, is that the pH on surface is 6.0-8.0, residual sulphur acid ion quantity not sufficient 500ppm is the carrier band material of feature.
Among the present invention,,, cooperate paper power reinforcing agent 1.0-8.0 weight portion preferably with respect to paper pulp raw material 100 weight portions for each layer of aforementioned multilayer.Add the occasion of paper power reinforcing agent, each of aforementioned multilayer layer, preferably with respect to paper pulp raw material 100 weight portions, the cooperation PEO is the tackifier 0.1-1.0 weight portion of main component.In addition, add the occasion of paper power reinforcing agent, preferably the l Water Paper moisture rate that is about to crimping section is adjusted to 75-80 weight %.
In addition, use the carrier band of these carrier band materials to be also included within the present invention.
Carrier band material of the present invention is according to the surface p H of above-mentioned feature and residual sulphur acid ion amount etc., is the material of main component with the paper pulp raw material, also is the material of the surface mounting assembly corrosion that can prevent to be loaded.
[simple declaration of accompanying drawing]
Fig. 1 is the side view of expression carrier band material structure example of the present invention.
Fig. 2 is the plane that the carrier band structure example of carrier band material formation of the present invention is used in expression.
Fig. 3 is the II-II sectional view of Fig. 2.
[explanation of symbol]
10... carrier band material, 11... superficial layer, 12... intermediate layer, 13... back layer, 14... edge part, 15... die cavity portion, 16... binding agent, 20... covering band.
[specific embodiment]
Below, illustrate in greater detail the present invention.
Carrier band material of the present invention has the multilayer that possesses multilayer to copy to close structure.Here, multilayer is preferably at least by superficial layer, back layer and be positioned at these three layers of formations of intermediate layer of two interlayers.
Among the present invention, do not have particular restriction, for example, can enumerate the coniferous tree of oregon pine, pine, China fir, pine etc. as the paper pulp raw material of each layer primary raw material; The broad leaf tree of eucalyptus, Mongolian oak rubber etc. is that sulfate process paper pulp (KP), semichemical wood pulp (SCP), wood fragments paper pulp (GP), the chemistry of primary raw material grinds paper pulp (CGP), wood chip groundwood pulp (RGP), de inked pulp (DIP), old paper stock (WP) etc., and these can use separately when using or mix more than 2 kinds and use.But from this viewpoint of the influence of surface mounting assembly is considered, select the few occasion of filler for use, preferably use the old paper stock of free of contamination paper pulp rather than DIP or WP etc.
The present invention adopts above-mentioned superficial layer, back layer and intermediate layer to form the occasion of carrier band material, and each layer can use identical paper pulp raw material to form respectively, can also use different paper pulp raw materials to form.Particularly, in order to obtain the desired effect of the present invention, preferred surface layer, back layer are used coniferous tree, the broad leaf tree sulfate process paper pulp (KP) as raw material, and coniferous tree, broad leaf tree sulfate process paper pulp (KP) or the de inked pulp (DIP) as raw material used in the intermediate layer.
The carrier band material of above-mentioned sandwich construction uses the slurry that paper pulp raw material and paper power reinforcing agent etc. are mixed, and can copy the synthetic multi-layer structure manufacturing by the l Water Paper that will constitute each layer.Therefore can use cylinder multilayer paper machine, high-speed molding multilayer paper machine, Bel helps to press from both sides net multilayer paper machine etc.Multilayer is copied the occasion of paper, and every kind of paper machine is more or less different, but its principle is meant and the l Water Paper of formed each layer on the paper machine wire netting is transferred on the felt in proper order and copies the method for closing.
In addition,, cooperate paper power reinforcing agent 1.0-8.0 weight portion, preferably cooperate the 2.5-6.0 weight portion with respect to paper pulp raw material 100 weight portions for the interlaminar strength of each interlayer of each layer of each layer raising of making above-mentioned multilayer.By making paper power reinforcing agent is more than 1.0 weight portions, can further improve interlaminar strength.And when surpassing 8.0 weight portions, the problem of contaminants in drainage matter increase etc. takes place and not preferred in not only hopeless further raising interlaminar strength, and owing to adhere to dirt on paper machine equipment.As paper power reinforcing agent, can use the compound of anionic property polyacrylamide, cationic polyacrylamide, amphiprotic polyacrylamide, polyvinyl alcohol, starch, triumphant ming tree fat etc. and commercially available product etc.
In addition, among the present invention, the surface p H of carrier band material is 6.0-8.0.The preferable range of pH is 6.3-7.8.In addition, among the present invention, aforementioned specific residual sulphur acid ion quantity not sufficient 500ppm.The not enough 250ppm of the preferable range of residual sulphur acid ion amount.The pH of carrier band material surface becomes less than 6.0, and/or the quantitative change of residual sulphur acid ion is when becoming 500PPm above, and surperficial mounted article produces corrosion.
Making pH and residual sulphur acid ion is in the above-mentioned scope, can regulate the pH of raw material or the alkali compounds etc. that suppresses the use level of aluminum sulfate or add sodium acid carbonate, calcium carbonate, ammoniacal liquor etc. is suitably regulated.And the carrier band material of the present invention of the Gou Chenging occasion that is carrier band is that the surface mounting assembly that is loaded does not corrode the material of deterioration like this.
In addition, the present invention is for the further effect that improves this paper power reinforcing agent of each layer that makes aforementioned multilayer, and preferably with respect to paper pulp raw material 100 weight portions, adding PEO is the tackifier 0.1-1.0 weight portion of main component, preferred 0.2-0.5 weight portion.In addition, preferably the l Water Paper moisture rate that is about to crimping section is adjusted to 75-80%, preferred 76-80%, more preferably 78-79.5%.
The inventor finds the preceding l Water Paper moisture rate (being about to the preceding dewatering speed of pressurization) of crimping section soon of the l Water Paper of each layer formation, and the evenness of l Water Paper and the effect that presents of paper power reinforcing agent are brought great influence.The moisture of the Z-direction of l Water Paper moves too soon, is the low occasion of moisture rate, form uneven evenness easily, and moisture moves too slowly, is the too high occasion of moisture rate, crimping section must dewater quickly, evenness is destroyed as a result, be these 2 kinds of consequences that situation is opposite, but any situation paper power reinforcing agent present deleterious, the intensity between the Z-direction ply of paper of carrier band material reduces as a result.Its result peels off between ply of paper in the processing of carrier band or in the transportation, the problem that the electronic unit that takes place to be loaded comes off.This problem especially takes place in aforementioned carrier band process easily, can be described as maximum mass defect.
In addition, form the occasion that this uneven evenness or generation destroy texture, the deviation of sheet thickness increases, and the result is in the cutting process of carrier band material, and adjacent coiling is nipped each other, produces the obviously problem of reduction of operability.That is, the carrier band material carries out the processing of die cavity hole and hole, edge after for example cutting becomes 8mm goods width, the bonding lining band edge filling in limit electronic component.Here, after generally once being cut into medium volume about wide 15-20cm to the reel of reeling with the paper machine spool, the cutting of said products width carries out.For example, be processed into the processing form that the wide goods of 8mm become 20 volumes by the wide medium volume of 160mm.The material webs of the wide goods that make like this on the box spool of the diameter 5cm left and right sides (tape rolling) or with helical coil about diameter 20cm, (horizontal in volume) dispatches from the factory on the paper tube about wide 10cm, and the end user peels off on the limit top lining band edge taking-up electronic component and carries out the surface installation.Wherein, horizontally compare with tape volume mode,,, have the advantage that electronic component filling process high speed and operating efficiency improve, make in this way mostly in recent years so can alleviate the connection operation owing to can make the long lengthening of the volume of every volume around the volume mode.Yet, paper as the use of carrier band material, generally be to form multilayer by this thickness to copy the paperboard that closes structure, thin cardboard reaches 0.4mm, thick cardboard reaches 1.0mm, the weight coefficient of alteration is 1.25% o'clock, in cutting into medium volume width process, and the frequent problem that mutual interlock takes place of the coiling that the sheet material after the cutting is adjacent.Such problem causes operating efficiency to reduce significantly, makes the practical operation difficulty.
In addition, the slurry viscosity of paper pulp raw material also has influence on evenness.That is, the slurry that pulp fiber and paper power reinforcing agent etc. mix is if there is suitable viscosity, and then pulp fiber is dispersed in equably on the wire netting and evenly launches thinly, can form good evenness, and the result also improves the effect that presents of paper power reinforcing agent.Therefore, when making the slurry of paper pulp raw material, add above-mentioned tackifier.
As PEO is the tackifier of main component, for example, can enumerate bright one-tenth chemical industry Co., Ltd. system, trade name ア Le コ Star Network ス; Sumitomo Seika Co., Ltd's system, trade name PEO-PFZ etc.The best fit amount of tackifier is according to the kind of raw material paper pulp, beating degree and difference, in addition, occasion at cylinder paper machine, the height of liquid level etc. in the eyelet footpath of the wire netting that uses according to cylinder vat or the groove and different is if become above-mentioned scope, even the effect that fully improves also appears in the condition difference.That is, be in the above-mentioned scope and to make above-mentioned l Water Paper moisture rate be in the above-mentioned scope by the addition that makes above-mentioned tackifier, can obtain the non-foaming and uniform evenness of raw material paper pulp, can give full play to the effect of paper reinforcing agent.In addition, when adding above-mentioned tackifier and surpassing above-mentioned scope, produce effect though evenness improved, because the effect that raw material paper pulp is bubbled is arranged in addition, the paper surface produces defective and not preferred sometimes.
In the occasion of cylinder paper machine, can make the l Water Paper moisture rate that is about to crimping section in above-mentioned scope by suitably regulating the eyelet footpath of cylinder vat, the pressure that pushes the couch roll of cylinder, groove, the vacuum values of suction etc.
Moreover, the standard of regulating as the above evenness, the preferred weight coefficient of alteration CV less than 1.25% of the paper of determining by following formula (1),
CV(％)＝SD/Ave×100 (1)
Here, SD is a carrier band material of getting wide (laterally) 8mm * length (vertically) 120cm, use the puncher punching sequentially of internal diameter 6mm, make adjacent circle in the heart for the interval of 11mm, the standard deviation of the gravimetry value the when electronic balance that use can be measured to decimal point following 4 (0.1mg) is measured the weight of 100 sample cuttings that stamping-out falls, Ave is the mean value of aforementioned gravimetry value.
In addition, in each layer of carrier band material of the present invention, in the scope of not destroying the desired effect of the present invention, can add all additives.Particularly, when to make carrier band of the present invention be above-mentioned three-decker, superficial layer, back layer, any one deck in intermediate layer all can use to keep improving agent, colouring agent, defoamer etc.
Especially, in order to prevent fine hair or dust (pulp fiber powder) or to seek to improve accuracy to size, can add hot-melt substance.Like this, by adding hot-melt substance, then, form die cavity portion etc., and the secondary operations that adopts other various process equipments, promptly, from containing section plug surface mounting assembly, and the encapsulation of top seal (aftermentioned) and when peeling off again, the reinforcement of combination between the fiber that the bonding and stagnation by hot-melt substance forms, thereby suppressed the generation of fine hair or fiber powder, made it to keep well the shape of processing part simultaneously.
In addition, said among the present invention " hot-melt substance " is softening by the heating shape, and the material of the bonding pulp fiber of melting comprises the material of all forms such as liquid, powder, fibrous, pasty state.In addition, what is called of the present invention " contains " hot-melt substance, as long as in final carrier band material, contain hot-melt substance, be also included within to add in the raw material of carrier band material and mix, or in the manufacture process of carrier band material, before final drying process, to surface or inner (containing interlayer) spraying or coating, apply the occasion of hot-melt substance.
As hot-melt substance, the shape of this material or kind be without any qualification, can use the material of fibrous, liquid, powder shaped, pasty state.But most preferably fibrous hot-melt substance.When using fibrous hot-melt substance, increase, can bring into play good reservation usefulness with the complexing of pulp fiber.In the occasion of other shapes, by using suitable preservative together.Can bring into play good reservation usefulness.
Use the occasion of this heat fusing fiber, pulp fiber (aggregation of cellulose fibre) is mixed with the heat fusing fiber by acidity copy paper or neutrality is copied paper, can not relate to the position of material and bring into play impartial effect.In addition, for example bring into play effect partly for form according to machining, can contain hot-melt substance in the part of thickness direction, particularly, can become to have and make the heat fusing thing contain layer and non-ly contain the material that layer becomes the folded sandwich construction of suitable multilayer respectively.The occasion of sandwich construction, though do not illustrate, but can only contain layer by the different multilayer hot-melt substance of hot-melt substance amount constitutes, multilayer hot-melt substance that perhaps can the hot-melt substance amount is different contain the layer with hot-melt substance non-contain the layer suitably compound, these occasions have the advantage that can make the variation of effect state continuously or intermittently according to thickness direction.
Kind as hot-melt substance, for example, can from SWP (polyolefin synthetic slurry (Mitsui Chemicals Co., Ltd system), the polyester of core-shell-type is a binding agent, the polypropylene-based binding agent of core-shell-type, polyamide-based binding agent are suitably selected a kind of or several uses among the PVA etc.
The carrier band material is made the occasion that the perforation carrier band uses, preferably make it to contain hot-melt substance 5-50 weight %.During the mixed proportion less than 5 weight % of heat fusing fiber, almost do not suppress the effect of fine hair or dust, when surpassing 50 weight %, the carrier band material loses hardness, the hole processing difficulties of die cavity etc., the possibility height of perforation failure or formation distortion die cavity portion etc., the manufacturing cost aspect is also unfavorable in addition.
The carrier band material makes the occasion that embossed carrier tape is used, and preferably makes it to contain hot-melt substance 10-50 weight %.During less than 10 weight %, thermoplasticity and shape maintenance effect are not almost had effect, when surpassing 50 weight %, the carrier band material loses hardness, forms the possibility height of distortion die cavity portion, and is also unfavorable aspect manufacturing cost.
Manufacturing has the occasion of the carrier band material that the multilayer more than three layers of superficial layer, intermediate layer and back layer constitutes, the ratio of hot-melt substance preferably makes superficial layer and back layer paper, middle floor height, and more preferably superficial layer and back layer are that 0-50 weight %, intermediate layer are 5-50 weight %.Therefore, when last drying is handled, can alleviate the attached sticking of hot-melt substance pair roller surface.
Yet general because hot-melt substance price is than paper pulp height, so when using hot-melt substance in a large number, though prevent the effect height of fine hair or dust, uneconomical.Therefore in order to reduce the use amount of hot-melt substance, preferably to adding the binding agent composition in the raw material.As the binding agent composition, can use the general binding agent that uses in the papermaking etc.For example can use polyacrylamide, starch, polyvinyl alcohol, triumphant ming tree fat, anti-hydrated agent etc.But this situation is added ratio in the binding agent, preferably with respect to raw material 100 weight portions, counts less than 10 weight portions by active ingredient.
Hot-melt substance and other fiber adopt the bonding formation internal structure of point type, increase the flexibility of carrier band material according to adding proportion, but there is not hardness (rigidity), and binding agent composition and other fiber adopt the bonding formation internal structure of face formula, then have the carrier band material according to adding proportion and lose flexibility and the tendency of hardening.
When especially the interior tret of additive component surpasses 10 weight portions by active ingredient, when forming die cavity portion or the filling of installing component, become bent when installing easily.And, not during heat of mixing melt substance, though in add binding agent and surpass 10 weight portions, also can fully not prevent the generation of fine hair or dust.
Add the occasion of hot-melt substance, when manufacturing paper with pulp, when using Yankee drying machine, many drum driers, air drier, infrared drier etc. that l Water Paper is carried out drying, under the temperature more than the fusing point of employed hot-melt substance, carry out drying, the heat fusing fiber is dissolved fully.
Below, with reference to accompanying drawing carrier band material of the present invention is described in more detail.
Here, Fig. 1 is the side view of an expression carrier band material of the present invention example, and Fig. 2 is the plane of an example of the expression formation carrier band that uses carrier band material of the present invention, and Fig. 3 is the II-II sectional view of Fig. 2.
The band of the three-decker that the carrier band material 10 that Fig. 1 represents is multilayers to be made of superficial layer 11, intermediate layer 12 and back layer 13.And the surface-coated of superficial layer 11 and back layer 13 has the binding agent 16 of applying aftermentioned covering band 20 usefulness.Moreover, Fig. 2 and 3 as described later, 16 parts that are coated in the applying covering band of binding agent.
The total thickness of carrier band material 10 is according to the size of filling electronic unit and difference is preferably 300-1200 μ m, more preferably 400-1000 μ m.In addition, the weight of unit are is preferably 250-900g/m
2, 350-800g/m more preferably
2
Wherein, the thickness of superficial layer 11, back layer 13 is preferably 50-250 μ m respectively, more preferably 100-200 μ m.And the weight of unit are is preferably 40-200g/m
2, 80-160g/m more preferably
2
In addition, as the binding agent that uses this moment, common this carrier band is so long as the binding agent that uses when bonding carrier band material and covering band then has the use of particular restriction ground.
In addition, the carrier band material 10 of the present embodiment uses as carrier band 1 of the present invention as shown in Figures 2 and 3.Promptly as shown in Figure 2, carrier band material 10 is interval with circular peristome and forms many edge parts 14 with setting at edge on one side, is interval with rectangular peristome at the edge of another side with setting and forms many die cavitys portion 15.
And, the carrier band 1 of Xing Chenging like this, in use, shown in Fig. 2 and 3, (therefore, the size of die cavity 15 is owing to take in surface mounting assembly 30 to take in surface mounting assembly 30 in die cavity portion 15 respectively, so preferably necessary and enough sizes), be fitted in covering die cavity portion 15 on the carrier band material 10 in addition.In addition, as shown in Figure 3, peel off covering band 20, surface mounting assembly 30 is exposed after, though not special diagram, be according to the desired location filling surface mounting assembly use of desired goods.As covering band 20, usually in this carrier band, so long as use then can be used ad lib as covering band.
Moreover carrier band material of the present invention is not subjected to any restriction of above-mentioned embodiment, only otherwise breaking away from main idea of the present invention can carry out all changes.
For example, die cavity portion 15 adopts the through hole of formation such as perforation processing to constitute (cellular type carrier band, illustrated example), also can be that the shrinkage pool that adopts embossing to be processed to form constitutes (embossed carrier tape), can also be to carry out cutting processing in advance to form die cavity portion (no hole carrier band) when just taking in surface mounting assembly.
Below, illustrate in greater detail the present invention by embodiment and comparative example, but the present invention is not limited by these.Moreover in the following example, short of specified otherwise is being " part " when reaching " % ", and then expression " weight portion " reaches " weight % " respectively.
[embodiment]
(embodiment 1)
In superficial layer and the back layer, the pulp that coniferous tree bleached sulphate method wood pulp (NBKP) 50%, bleached hardwood sulfate method pulp (LBKP) 50% are formed in use is adjusted to the slurry of Canadian standard freeness (CSF) 450cc, and the pulp that the intermediate layer uses NBKP25%, LBKP25%, packaging for foodstuff waste paper pulp 50% to form is adjusted to the slurry of CSF350cc.
In addition, form in the material at above-mentioned each layer, with respect to 100 parts of paper pulp raw materials, cooperate 0.4 part of 5 parts of PAMA paper power reinforcing agent (trade name: Ha-マ イ De B-15, Ha リ マ changes into Co., Ltd.'s system), tackifier (trade name: ア Le コ Star Network ス SR, bright one-tenth chemical industry strain formula people's commune system).Moreover, do not add aluminum sulfate.
Utilize the above-mentioned cylinder multilayer paper machine that is used, make the carrier band material of three-decker.At this moment, soon the l Water Paper moisture rate of crimping section is 76.5%.The surface p H of gained carrier band material is 6.4.
In addition, adopt following method to implement the residual sulphur acid ion amount of carrier band material, the evaluation of operability when the corrosivity of interlaminar strength, evenness, electronic unit, manufacturing.
(test method)
Residual sulphur acid ion amount: use the sulfate ion in the hot water extracting carrier band material, make it precipitation, measure this weight of precipitate, calculate residual sulphur acid ion amount with barium chloride.
Peel strength: according to the described test method of TAPPIUM522.
The electronic unit corrosion test: 50g gained carrier band material is cut into 1cm square small pieces, mixes with 50 chip electronic units in the adding weighing bottle, at 40 ℃, 80% (relative humidity) environment was placed 30 days down.Take out from the weighing bottle then, one by one observe the chip electronic unit with microscope, the number of the parts of corrosion takes place in statistics.
Operability: in machine hand's preface or manufacturing procedure, the occasion of any operating trouble does not take place, write down this key points for operation.
(embodiment 2-embodiment 5)
Except the use level of change paper power reinforcing agent or tackifier, or be about to beyond the l Water Paper moisture rate of crimping section, other make the carrier band material similarly to Example 1, similarly test.
(comparative example 1)
The formation material of superficial layer and back layer is except any one deck all cooperates 3 parts in aluminum sulfate, and other make the carrier band material similarly to Example 1, similarly test.The pH of this moment is 5.0, and the l Water Paper moisture rate that is about to crimping section is 76.5%.
(comparative example 2)
Except the pH with the carrier band material surface is adjusted to 8.2, other make the carrier band material similarly to Example 1, similarly test.The l Water Paper moisture rate that is about to crimping section is 76.5%.
(comparative example 3)
Except the use level of paper reinforcing agent is 0.5 part, the l Water Paper moisture rate that is about to crimping section is 76.7%, other make the carrier band material similarly to Example 1, similarly test.The pH of this moment is 6.4, and the l Water Paper moisture rate that is about to crimping section is 76.7%.
(comparative example 4)
Except ending the cooperation of tackifier, the l Water Paper moisture rate is beyond 76.4%, and other make the carrier band material similarly to Example 1, similarly test.The pH of this moment is 6.3, and the l Water Paper moisture rate that is about to crimping section is 76.4%.
(comparative example 5)
Except adjusting is arranged on the wire netting part condition of work to the vacuum suction apparatus between crimping section, dehydration ahead of time, the l Water Paper moisture rate that is about to crimping section is beyond 74.0%, other make the carrier band material similarly to Example 1, similarly test.The pH of this moment is 6.4.
(comparative example 6)
Except stopping to be arranged on the wire netting part to the vacuum suction apparatus between crimping section, postpone dehydration, the l Water Paper moisture rate that is about to crimping section is beyond 80.5%, other make the carrier band material similarly to Example 1, similarly test.The pH of this moment is 6.3.
(comparative example 7)
Except the use level of tackifier was 1.2 parts, other made the carrier band material similarly to Example 1, similarly test.The pH of this moment is 6.4, and the l Water Paper moisture rate that is about to crimping section is 76.3%.
(comparative example 8)
Except the use level of paper power reinforcing agent was 9.0 parts, other made the carrier band material similarly to Example 1, similarly test.The pH of this moment is 6.4, and the l Water Paper moisture rate that is about to crimping section is 76.4%.
Above embodiment 1-5 and comparative example 1-8 cooperate, create conditions and result of the test is shown in table 1.The corrosion of electronic unit does not take place in the carrier band material of embodiment 1-5 fully, and the intensity between ply of paper might as well.In addition, good evenness is arranged, operating trouble does not all take place in machine hand's preface or manufacturing procedure, can eliminate problem in the past.
On the contrary, comparative example 1 carrier band material residual sulphur acid ion is many, and electronic unit corrodes as a result, can not eliminate problem in the past.When comparative example 2 is made the carrier band material, adhere to a large amount of dregs on the paper machine drying equipment, be difficult to stable operation.The intensity of the carrier band material paper interlayer of comparative example 3 is low, produces splitting problem, uncomfortable cooperation carrier band material during cutting processing.The carrier band material evenness of comparative example 4 is inhomogeneous, and the intensity between ply of paper is low, and adjacent coiling produces mutual interlock problem during cutting processing.The carrier band material evenness of comparative example 5 is inhomogeneous, the intensity between ply of paper, and adjacent coiling produces mutual interlock problem during cutting processing in addition.The carrier band material of comparative example 6 produces on whole paper and is called the figure that destroys evenness.In addition, the intensity between ply of paper is low, and adjacent coiling produces mutual interlock problem during cutting processing.The carrier band material of comparative example 7, generation is called the figure that destroys evenness on whole paper.This carrier band material adheres to muscle shape dirt and is difficult to continued operation on paper machine wire netting equipment.The carrier band material of comparative example 8 adhere to a large amount of dirts when not only manufacturing paper with pulp on drying equipment and wire netting equipment, and the polluter in the draining increases the draining difficult treatment.
Table 1
Operability is estimated
* (1): adhere to a large amount of dregs on the paper machine drying equipment, be difficult to stable operation.
* (2): the fault of mutual interlock takes place in adjacent coiling during cutting processing, and efficient obviously reduces.
* (3): the dirt of muscle shape takes place on the paper machine wire netting, and paper produces defective and is difficult to continued operation.
* (4): adhere to a large amount of dregs on the paper machine drying equipment, a large amount of dirts also takes place on the wire netting, the polluter in the draining increases in addition, the draining difficult treatment.
The present invention is carrier band material and the carrier band that uses during electronic unit applicable to filling.
Claims (5)
1. carrier band material is to have the multilayer that possesses multilayer to copy and close structure, and each layer is the carrier band material of main component with paper pulp raw material separately, it is characterized in that, the pH on surface is 6.0-8.0, and residual sulphur acid ion quantity not sufficient 500ppm is in aforementioned each layer of multilayer, with respect to paper pulp raw material 100 weight portions, cooperate paper power reinforcing agent 1.0-8.0 weight portion, simultaneously, in aforementioned each layer of multilayer, with respect to paper pulp raw material 100 weight portions, cooperating PEO is the tackifier 0.1-1.0 weight portion of main component.
2. the described carrier band material of claim 1 is characterized in that, contains the hot-melt substance of 5～50 weight %.
3. claim 1 or 2 described carrier band materials is characterized in that, by the weight coefficient of alteration CV less than 1.25% of the definite paper of following formula (1),
CV(％)＝SD/Ave×100 (1)
Here, SD is a carrier band material of getting wide (laterally) 8mm * length (vertically) 120cm, use the puncher punching sequentially of internal diameter 6mm, make and be the interval of 11mm between the central point of adjacent circle, the standard deviation of the gravimetry value the when electronic balance that use can be measured to decimal point following 4 (0.1mg) is measured the weight of 100 sample cuttings that blanking falls, Ave is the mean value of aforementioned gravimetry value.
4. the described carrier band material of claim 1 is characterized in that, the l Water Paper moisture rate that is about to crimping section is adjusted to 75-80 weight %.
5. use the carrier band of each described carrier band material of claim 1-4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003205373 | 2003-08-01 | ||
| JP205373/2003 | 2003-08-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1579756A CN1579756A (en) | 2005-02-16 |
| CN100577414C true CN100577414C (en) | 2010-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410031886A Expired - Fee Related CN100577414C (en) | 2003-08-01 | 2004-03-31 | Carrying band material and carrying band |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100577414C (en) |
| TW (1) | TW200505675A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2928635B1 (en) * | 2008-03-13 | 2012-07-20 | Centre Nat Rech Scient | COMPONENT SUPPORT STRIP |
| US8771467B2 (en) | 2012-03-12 | 2014-07-08 | Zhejiang Jiemei Electronic & Technology Co., Ltd | Carrier tape base paper making method and base paper made thereby |
| CN105648825B (en) * | 2016-01-07 | 2017-07-14 | 仙鹤股份有限公司 | A kind of electronic component conveying cotton paper and its production technology |
| CN112575611A (en) * | 2020-12-22 | 2021-03-30 | 浙江洁美电子信息材料有限公司 | Paper for storage carrier of micro electronic component and storage carrier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87108008A (en) * | 1987-11-21 | 1988-06-15 | 河南省中牟造纸厂 | Adopt novel flocculating agent for glue-applicating to carry out neutrality-alkaline paper-making |
| US5562974A (en) * | 1992-07-08 | 1996-10-08 | Nippon Paper Industries Co., Ltd. | Permanent paper |
| JP2000203521A (en) * | 1999-01-11 | 2000-07-25 | Hokuetsu Paper Mills Ltd | Carrier tape paper for electronic device |
| JP2003175966A (en) * | 2001-10-04 | 2003-06-24 | Hokuetsu Paper Mills Ltd | Carrier tape paper for electronic component chip |
-
2004
- 2004-03-15 TW TW093106815A patent/TW200505675A/en not_active IP Right Cessation
- 2004-03-31 CN CN200410031886A patent/CN100577414C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87108008A (en) * | 1987-11-21 | 1988-06-15 | 河南省中牟造纸厂 | Adopt novel flocculating agent for glue-applicating to carry out neutrality-alkaline paper-making |
| US5562974A (en) * | 1992-07-08 | 1996-10-08 | Nippon Paper Industries Co., Ltd. | Permanent paper |
| JP2000203521A (en) * | 1999-01-11 | 2000-07-25 | Hokuetsu Paper Mills Ltd | Carrier tape paper for electronic device |
| JP2003175966A (en) * | 2001-10-04 | 2003-06-24 | Hokuetsu Paper Mills Ltd | Carrier tape paper for electronic component chip |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI342264B (en) | 2011-05-21 |
| CN1579756A (en) | 2005-02-16 |
| TW200505675A (en) | 2005-02-16 |
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