CN1179012C - Cleaning sheet and method for removing matter containing solvent - Google Patents
Cleaning sheet and method for removing matter containing solvent Download PDFInfo
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- CN1179012C CN1179012C CNB011213027A CN01121302A CN1179012C CN 1179012 C CN1179012 C CN 1179012C CN B011213027 A CNB011213027 A CN B011213027A CN 01121302 A CN01121302 A CN 01121302A CN 1179012 C CN1179012 C CN 1179012C
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- sensitive adhesive
- solvent
- pressure sensitive
- cleaning sheet
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Abstract
The cleaning sheet for a solvent containing matter is a cleaning sheet for a solvent containing matter composed of a substrate and an adhesive layer formed at least one face of the substrate and is characterized in that the difference &Delta &delta between the solubility parameter, &delta 1[(J/cm3)1/2], (SP value) of the adhesive composing the adhesive layer and the solubility parameter, &delta 2[(J/cm3)l/2], (SP value) of the solvent contained in the solvent-containing matter, which is the object to be removed is between - 4[(J/cm3)1/2] and + 4[(J/cm3)1/2]. The cleaning sheet is capable of reliably sticking and removing a solvent containing matter adhering to a machine, a floor or the like without extending the stain to the peripheral part. The cleaning sheet can be employed for cleaning a screen printing master or the like.
Description
The present invention relates to a kind of cleaning sheet that is used to remove solvent-containing substance, it can be used for cleaning the goods that have solvent-laden adhesion thing, as screen printing stencil, printer roller with for example have the goods of paint, and relates to a kind of method of removing solvent-containing substance.
Solvent-laden material such as cream, printing ink and other comprise solvent and the semi-solid material that is under the wet condition is widely used in printing, paint and adhesive field.But excessive these pollute or the machine of making dirty, equipment and hand at the solvent-laden material or the solvent-laden material in non-required zone of specific region, destroy quality product, and cause other variety of issue.
For example, when carrying out the printing operation of certain number in silk screen printing, lotion (printing ink) turns near the back of screen printing stencil (printing plate), has polluted printed matter like this or has polluted printed images, therefore can not accurately and ideally print.Be used for removing the method that the currently known methods of sedimentary lotion on the screen printing stencil comprises the method for wherein using squeegee that lotion machinery is wiped off, wherein pressure sensitive adhesive tape (tacky adhesion adhesive tape) pasted and peeled off with the method for removing lotion, wherein use wiping cloth (rags) (refuse) to wipe the method for lotion and wherein screen printing stencil is placed and cleaned at the cleaning jar that is filled with solvent.In addition, the currently known methods that is used to clean the floor, desk and the wall that have for example sedimentary white dyes or solvent-laden paint is a kind of method and a kind of method of wherein using scraper or squeegee to wipe bur off of wherein using wiping cloth (rags) to wipe bur.
But these use squeegees or wiping cloth (rags) cleaning to have the method on the machine of sedimentary solvent-containing substance or floor may be owing to the physical force that is administered on the goods be damaged goods to be cleaned, and very may with pollute partly expand to around.
Pressure sensitive adhesive tape being pasted on the solvent-laden material so that it is removed,, pollute and to enlarge on the contrary if select inappropriate pressure sensitive adhesive tape.But, before selecting to clean the pressure sensitive adhesive tape of goods to be cleaned, several so conventional pressure sensitive adhesive tapes must be carried out actual test according to routine techniques.
Therefore, an object of the present invention is to provide a kind of cleaning sheet that is used to remove solvent-laden material, it can adhere to reliably and remove and be deposited on, the solvent-laden material on machine or the floor for example, and around pollution can not being expanded to; And provide a kind of method of using this cleaning sheet to remove solvent-laden material.
Another object of the present invention provides a kind of cleaning sheet that is used to remove solvent-laden material, and it can not damage product to be cleaned and also clean these goods easily and can not enlarge pollution; And provide a kind of method of using this cleaning sheet to remove solvent-laden material.
Another object of the present invention provides a kind of cleaning sheet that is used to remove solvent-laden material, and it is widely used in various purposes and can be applicable to various goods to be cleaned and solvent-laden material; And provide a kind of method of using this cleaning sheet to remove solvent-laden material.
Another object of the present invention provides a kind of method that is used to remove solvent-laden material, and best cleaning sheet is selected and used to this method according to the solvent species that is deposited on the solvent-laden material on the goods to be cleaned easily.
To achieve these goals, the inventor is in the performance of the cleaning sheet of having found to be used to remove solvent-laden material after the further investigation and constitute a kind of relation between the solubility property of pressure sensitive adhesive of pressure sensitive adhesive layer.Therefore, the inventor has further studied the solubility parameter that can be used for representing dissolution phenomena, and have been found that, if there is particular kind of relationship in the solubility parameter of pressure sensitive adhesive with the solubility parameter that is included in the solvent in the solvent-containing substance to be removed, cleaning sheet can adhere to and remove solvent-laden material and around it can not being extended to reliably.The present invention finishes on the basis of these discoveries.
Specifically, one aspect of the present invention provides a kind of cleaning sheet that is used to remove solvent-laden material, this cleaning sheet comprises base material and the pressure sensitive adhesive layer that forms on the one side at least of this base material, wherein constitute solubility parameter (SP) δ of the pressure sensitive adhesive of pressure sensitive adhesive layer
1[(J/cm
3)
1/2] be included in solubility parameter (SP) δ of the solvent in the solvent-laden material to be removed
2[(J/cm
3)
1/2] between difference DELTA δ at ± 4[(J/cm
3)
1/2] scope in.This cleaning sheet can be used for cleaning, for example screen printing stencil.
On the other hand, the invention provides a kind of method that is deposited on the solvent-laden material on the goods to be cleaned of removing with cleaning sheet, this cleaning sheet comprises base material and the pressure sensitive adhesive layer that forms on the one side at least of this base material, and this method may further comprise the steps: (1) determines solubility parameter (SP) δ of the pressure sensitive adhesive of formation pressure sensitive adhesive layer
1[(J/cm
3)
1/2]; (2) determine to be included in solubility parameter (SP) δ of the solvent in the solvent-laden material to be removed
2[(J/cm
3)
1/2]; (3) select cleaning sheet to make δ then
1With δ
2Between difference DELTA δ at ± 4[(J/cm
3)
1/2] scope in, use selected cleaning sheet to remove solvent-laden material then.
In step (1), cleaning sheet can be immersed in the multiple solvent with different solubilities parameter (SP) turgidity or the gel fraction with the pressure sensitive adhesive of determining to constitute pressure sensitive adhesive layer respectively, and wherein the solubility parameter (SP) of pressure sensitive adhesive with solvent of maximum dilatation or minimum gel fraction is defined as solubility parameter (SP) δ of the pressure sensitive adhesive of formation cleaning sheet pressure sensitive adhesive layer then
1[(J/cm
3)
1/2].
According to the present invention, be not particularly limited the base material (substrate) of the cleaning sheet that is used to remove solvent-laden material.Can advantageously use polyethylene film, polypropylene screen and other polyolefin film; Polyethylene terephthalate film and other polyester film and other plastic film be not because these plastic films can form powdery paper dirt.If but cleaning sheet is used for for example roller of easy clean, paper and similar substance can be used as base material.The foam materials of urethane, polyethylene, ethylene-propylene-diene (EPDM) and other material can be advantageously used for base material to remove irregular lip-deep lotion or printing ink.In addition, nonwoven fabric, cloth, tinsel also can be used as base material in some occasion.Base material can be individual layer or the laminar structure be made up of multilayer.
The thickness of base material is not particularly limited, and can suitably set according to the desirable strength of cleaning sheet and workability, is generally about 10-500 μ m, preferably about 12-200 μ m, more preferably from about 15-100 μ m.If base material is a foam materials, its thickness is generally several millimeters to about tens millimeters approximately.
The pressure sensitive adhesive that is used to constitute the pressure sensitive adhesive layer of cleaning sheet is not particularly limited, and can use any pressure sensitive adhesive, as long as its solubility parameter satisfies with co-relation.This pressure sensitive adhesive includes, but is not limited to rubber-based pressure-sensitive adhesive (as, natural rubber based pressure-sensitive adhesive; Styrene-butadiene copolymer base, polyisobutenyl, styrene-isoprene-styrene copolymer-based and other synthetic rubber based pressure-sensitive adhesive) and acrylic pressure-sensitive adhesive.Wherein, acrylic pressure-sensitive adhesive is preferred because of its gratifying viscosity and other performance.
These acrylic pressure-sensitive adhesives generally by the base monomer that is used to give viscosity, be used to give the comonomer of cohesiveness (coalescent performance) and be used to tackify or the monomer that contains functional group that is used to form cross-linking set is formed.These base monomer include, but is not limited to ethyl propenoate, propyl acrylate, vinylformic acid isopropyl esters, butyl acrylate, isobutyl acrylate, vinylformic acid pentyl ester, Ethyl acrylate, acrylate heptyl ester, Octyl acrylate, 2-EHA, vinylformic acid nonyl ester, decyl acrylate and other vinylformic acid C
2-C
10Alkyl ester.
Be used to give close-burning comonomer and include, but is not limited to methyl acrylate, methyl methacrylate, Jia Jibingxisuanyizhi, methacrylic acid isopropyl esters and other alkyl methacrylate; Vinyl-acetic ester and other vinyl ester; Vinylbenzene, alpha-methyl styrene, Vinyl toluene and other styrenic monomers; And vinyl cyanide, therein ethylene base ester and vinyl cyanide are preferred.
The monomer that contains functional group includes, but is not limited to vinylformic acid, methacrylic acid, methylene-succinic acid, maleic anhydride and other the monomer that comprises carboxyl or anhydride group respectively; The monomer of vinylformic acid 2-hydroxyethyl ester, methacrylic acid 2-hydroxyethyl ester, hydroxypropyl methacrylate and other hydroxyl; Glycidyl acrylate, glycidyl methacrylate and other the monomer that contains epoxide group; N hydroxymethyl acrylamide, N-methylol methacrylamide and other the monomer that contains amido; Dimethylaminoethyl methacrylate, t-butylaminoethyl methacrylate and other the monomer that contains amino.Wherein, vinylformic acid and other the monomer that comprises carboxyl or anhydride group respectively are the monomers that preferably contains functional group.
Constituting base monomer, the comonomer of acrylic pressure-sensitive adhesive respectively and contain the monomeric ratio of functional group can basis, for example the required solubility parameter of tackiness agent and selecting.For example, base monomer accounts for about 40-98% weight of total monomer component, and comonomer accounts for about 0-50% weight, and the monomer that contains functional group accounts for about 0.5-15% weight.
Except pressure-sensitive adhesive polymers (base polymer), pressure sensitive adhesive layer also can comprise various additives.These additives comprise (but being not limited to) linking agent (as, isocyanic ester based cross-linker, epoxy group(ing) linking agent, urea groups linking agent, melamine based cross-linker, carboxylic acid group or anhydride group linking agent, metallic compound based cross-linker), tackifier [as, terpine resin, terpenes-phenolic resin, modified aromatic terpine resin, hydrogenated terpene resin and other terpenyl resin; Aliphatic series, aromatics or alicyclic petroleum resin; Rosin, hydrogenated wood rosin glycerol ester and other rosin resin, tonka bean camphor-indene resin; And phenylethylene resin series], tensio-active agent, softening agent, antioxidant, tinting material, filler and whipping agent.Preferred cross-linking agents comprises the isocyanic ester based cross-linker.
The amount of these additives can suitable selection in the scope that does not reduce viscosity and solvent absorbing.For example, the amount of linking agent for example is about 1-30 weight part, the pressure-sensitive adhesive polymers of relative 100 weight parts (base polymer).
The thickness of pressure sensitive adhesive layer can freely be selected according to desired use, for example is about 50-5000 μ m, preferably about 10-2000 μ m.Cleaning sheet also can be included in the low coating between base material and the pressure sensitive adhesive layer, and can have pressure sensitive adhesive layer on the two sides of base material.
The cleaning sheet of the present invention that is used to remove solvent-laden material can use routine techniques, as coating method, makes by form pressure sensitive adhesive layer on base material.
Be used to remove the solvent-laden material that the cleaning sheet of solvent-laden material removes by the present invention and be not particularly limited, comprise comprising solvent and being in semi-solid material under the wet condition, as lotion, printing ink, glue, tackiness agent and paint (coating material).
The solvent that is included in the solvent-laden material includes, but is not limited to hexane, heptane, mineral oil, dodecane and other aliphatic hydrocrbon; Hexanaphthene, perhydronaphthalene and other clicyclic hydrocarbon; Toluene, dimethylbenzene, industrial naptha, naphthane, kautschin and other aromatic hydrocarbon; Methyl alcohol, ethanol, Virahol, butanols, isopropylcarbinol, sec-butyl alcohol, hexalin, 2 methyl cyclohexanol, tridecanol and other alcohol; T-butyl methyl ether, dibutyl ether, dibenzyl ether, phenylmethylether and other ether; Methyl acetate, ethyl acetate, isopropyl acetate, butylacetate, diethyl phthalate and other ester; Acetone, methylethylketone, methyl iso-butyl ketone (MIBK), pimelinketone, methylcyclohexanone, diacetone alcohol, isophorone and other ketone; Ethylene glycol, propylene glycol, 1,4-butyleneglycol, glycol ether, triglycol, dipropylidene diol and other glycol; Butyl beta-hydroxyethyl ether (ethylene glycol butyl ether), propylene glycol monomethyl ether, dihydroxypropane single-ether, propylene glycol monobutyl ether, diethylene glycol monobutyl ether and other glycol ethers; Butyl cellosolve acetate, propylene glycol methyl ether acetate, propylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetic ester and other glycol ether-ether; Water; And the mixture of these solvents.
According to the present invention, constitute solubility parameter (SP) δ of the pressure sensitive adhesive of pressure sensitive adhesive layer
1[(J/cm
3)
1/2] be included in solubility parameter (SP) δ of the solvent in the solvent-laden material to be removed
2[(J/cm
3)
1/2] between difference DELTA δ at ± 4[(J/cm
3)
1/2] scope in.
If the solubility parameter of pressure sensitive adhesive (SP) δ
1[(J/cm
3)
1/2] satisfy with co-relation, be included in solvent in the solvent-laden material to be removed absorbs and constitute the pressure sensitive adhesive of pressure sensitive adhesive layer rapidly by pressure sensitive adhesive viscosity (adhesivity) and be maintained.Therefore, cleaning sheet can adhere to and remove the solvent-laden material of goods to be cleaned reliably and can not enlarge pollution.On the contrary, if incite somebody to action the wherein solubility parameter of pressure sensitive adhesive (SP) δ
1[(J/cm
3)
1/2] the discontented cleaning sheet that is enough to condition is applied on the solvent-laden material, the solvent in the solvent-laden material can not be absorbed by pressure sensitive adhesive significantly and the viscosity (adhesivity) of pressure sensitive adhesive destroyed.Therefore, polluting part expansion and solvent-laden material can not remove by adhesive attraction.Difference DELTA δ is more preferably at ± 3[(J/cm
3)
1/2] scope in.
Constitute solubility parameter (SP) δ of the pressure sensitive adhesive of pressure sensitive adhesive layer
1[(J/cm
3)
1/2] can, for example come by the following method to determine.Specifically, cleaning sheet being immersed in several (at least three kinds) has in the solvent of different solubilities parameter (SP); Determine the turgidity or the gel fraction of the pressure sensitive adhesive of formation pressure sensitive adhesive layer; Then will be wherein the solubility parameter (SP) of pressure sensitive adhesive with solvent of maximum dilatation or minimum gel fraction be defined as the solubility parameter (SP) (typically) of this pressure sensitive adhesive.The solubility parameter of solvent (SP) can be according to the Fedors method by calculating or obtaining by known data book or in enumerating.
The solvent that is usually used in determining the solubility parameter (SP) of pressure sensitive adhesive comprises, for example normal heptane (15.1), hexanaphthene (16.8), toluene (18.1), ethyl acetate (18.6), methylethylketone (19.0), pimelinketone (20.3), isopropylcarbinol (21.5) and Virahol (23.5).Parenthetic numerical value is solubility parameter (SP) [(J/cm
3)
1/2].
The turgidity of pressure sensitive adhesive or gel fraction can come to determine in such a way.
(1) the Teflon film (about 10 square centimeters) and the kite string (about 12 cm long) (A gram) of accurately weighing and being used to measure.
(2) utilize kite string, with the about 0.5-1 gram of Teflon film parcel pressure sensitive adhesive (or cleaning sheet), in addition, parcel list is solely used in the base material of cleaning sheet to obtain blank sample in the same manner.
(3) the sample bag of accurately weighing and making in step (2) deducts the Teflon film of mensuration in step (1) and the weight (A gram) of kite string then, obtains example weight (B gram) like this.
(4) above-mentioned packing is placed in the 50-300 milliliter volumetrical vial, in vial, puts into solvent to be determined then, and at room temperature will pack dipping wherein 7 days.
(5) from vial, take out packing, wipe the solvent that adheres on the Teflon film rapidly, accurately measure gained packing (C gram) then.
(6) will weigh be packaged in the baking oven (moisture eliminator) 130 ℃ dry 2 hours down.
(7) the exsiccant packing (D gram) of accurately weighing.
(8) calculate turgidity according to following equation.
Turgidity (%)={ (C-A)/(D-A) } * 100
If cleaning sheet is as sample, the value that will obtain by the value that deducts blank sample (independent base material) from measured value is used for calculating as C and D.
(9) calculate turgidity according to following equation.
Gel fraction (%)=(D-A)/B} * 100
If cleaning sheet is as sample, the value that will obtain by the value that deducts blank sample (independent base material) from measured value is used for calculating as B and D.
In above mensuration,, can use nylon gauze to substitute the Teflon film if use highly viscous solvent.If the use high boiling solvent, drying temperature should be set near the boiling point of solvent.
If pressure sensitive adhesive is polyisobutene or the another kind of tackiness agent that does not have crosslinked and complete stripping in solvent, the solubility parameter of pressure sensitive adhesive (SP) can be measured according to above same way as so, and just the dipping time of sample in solvent shortens.In addition, the dissolution rate of pressure sensitive adhesive is by test result calculations, and wherein the solubility parameter (SP) of pressure sensitive adhesive with solvent of maximum dissolution rate can be determined as the solubility parameter (SP) (typically) of pressure sensitive adhesive.
If the solubility parameter of described pressure sensitive adhesive (SP) as aforementioned test or at document as " polymer handbook " (John Wiley ﹠amp; Sons, the value that calculates in Inc.) and enumerating, this enumerator can be used as solubility parameter (SP) δ of the used pressure sensitive adhesive of the present invention
1
Be included in solubility parameter (SP) δ of the solvent in the solvent-laden material to be removed
2[(J/cm
3)
1/2] also can determine according to the calculating of Fedors method or by known data book.If multiple solvent is included in the solvent-laden material to be removed, so the solubility parameter of every kind of solvent (SP) can be used as solubility parameter (SP) δ with the summation of the product of molar fraction
2If but at least a in the multiple solvent is that pressure sensitive adhesive is insoluble to solvent wherein, turgidity or gel fraction can use the multiple polymkeric substance of enumerating in as " polymer handbook " at document with known SP so, measure according to above method, and the SP with polymkeric substance of maximum dilatation or minimum gel fraction may be defined as solubility parameter (SP) δ by the solvent mixture of multiple solvent composition
2The solubility parameter of solvent mixture (SP) δ
2Also can utilize known technology, calculate by the value of vaporization heat, vapour pressure or other physicals.
Preferably be used for removing the cleaning sheet of solvent-laden material in the present invention, if cleaning sheet flooded in solvent 1 second, pressure sensitive adhesive layer absorbs 5 gram/rice 2 or more is included in solvent in the material to be removed, and after absorbing 5 gram/rice, 2 solvents, the stripping strength of this cleaning sheet (viscosity) be equal to or greater than 0.3cN/20mm (as, about 0.3-100cN/20mm), and preferably be equal to or greater than usually 0.8cN/20mm (as, about 0.8-50cN/20mm), this method by the Z of Japanese Industrial Standards (JIS) 0237 is measured, wherein, stripping strength uses stainless steel plate (SUS 430 BA plates) as bur, to be administered to bur at cleaning sheet and to measure after last 1 minute.This cleaning sheet that is used to remove solvent-laden material can absorb be included in solvent-laden material as, be used for the lotion (printing ink) of silk screen printing or be deposited on printing press such as the roller of offset press on a large amount of solvents of printing ink.Therefore, if cleaning sheet adheres on the back side of screen printing stencil or on the roller, it can absorb nearly all being included in and turns near the silk screen plate back the lotion or be deposited on solvent in the printing ink on the roller, and can harden this lotion or printing ink.In addition, even after the solvent that absorbs specified quantitative, this cleaning sheet has the gratifying viscosity that is equal to or greater than 0.3cN/20mm, and the solid matter after solvent is absorbed adheres to cleaning sheet, and removes at sheet material that cleaning sheet is cleaned when goods to be cleaned are peeled off.Therefore, it is higher that this cleaning sheet is removed the effect of solvent-laden material.
Be used to remove the cleaning sheet of solvent-laden material at absorption 5 gram/rice
2The thickness of the second-order transition temperature of the pressure sensitive adhesive of the kind that solvent absorbing amount after the solvent and stripping strength (viscosity) can be by suitable selection compositing monomers and the kind of ratio, linking agent and ratio, formation pressure sensitive adhesive layer and molecular-weight average, pressure sensitive adhesive layer and the kind and the quantity that add the additive of pressure sensitive adhesive layer control.
The method that the present invention is used to remove solvent-laden material may further comprise the steps: (1) determines to constitute solubility parameter (SP) δ of the pressure sensitive adhesive of pressure sensitive adhesive layer
1[(J/cm
3)
1/2]; (2) determine to be included in solubility parameter (SP) δ of the solvent in the solvent-laden material to be removed
2[(J/cm
3)
1/2]; (3) select cleaning sheet to make δ then
1With δ
2Between difference DELTA δ at ± 4[(J/cm
3)
1/2] scope in, use selected cleaning sheet to remove solvent-laden material then.
According to the present invention,, can promptly determine the available cleaning sheet according to the solvent types (structure) that is included in the solvent-containing substance to be removed (being deposited on the goods to be cleaned) in case determine the SP of the pressure sensitive adhesive of formation pressure sensitive adhesive.
The cleaning sheet that the present invention is used to remove solvent-laden material can be used for cleaning and has the goods of sedimentary solvent-laden material (semi-solid material particularly) as solid and printing ink.These goods to be cleaned comprise, for example screen printing stencil (template), printer roller and have for example goods of deposition paint.
According to the present invention, the solubility parameter that constitutes the pressure sensitive adhesive of pressure sensitive adhesive is in particular kind of relationship with the solubility parameter that is included in the solvent in the solvent-laden material to be removed, so cleaning sheet of the present invention lyosorption and can keep its viscosity promptly.Therefore, this cleaning sheet can adhere to reliably and remove and be deposited on, around for example the solvent-laden material on machine or the floor and can just not polluting expands to.
In addition, cleaning sheet of the present invention and method clean goods to be cleaned easily and can not damage these goods, also can not enlarge pollution, therefore can be used for various goods to be cleaned and solvent-laden material (settling) to be removed.Therefore, cleaning sheet of the present invention and method can utilize a kind of adhesion sheet material to realize clean operation in printing and enamelling process, and this clean operation is at present only by carrying out with refuse (wiping cloth (rags)) wiping.
The inventive method can be promptly selected and is used best cleaning sheet according to being included in solvent types in the solvent-laden material (being deposited on the goods to be cleaned), need not various cleaning sheets are carried out actual test.
The present invention is by following embodiment more detailed description, but this not delimit the scope of the invention.In following examples, parenthetic numerical value is solubility parameter (SP) [(J/cm after the solvent name
3)
1/2].
Embodiment 1
(1) solubility parameter of pressure sensitive adhesive (SP) δ
1Mensuration:
On the one side of the polyethylene film (base material) of 0.06 mm thick, form the thick pressure sensitive adhesive layer of 10 μ m, obtain cleaning sheet like this.This pressure sensitive adhesive layer is made up of the acrylic pressure-sensitive adhesive that comprises 100 parts by weight of acrylic acid butyl ester-acrylic copolymer (95: 5 weight) and 15 weight part isocyanic ester based cross-linkers.
Accurately the weigh every kind of sample that cutting cleaning sheet pressure sensitive adhesive obtains that passes through of about 0.5 gram, the sample of will weighing then at room temperature were immersed in normal heptane (15.1), hexanaphthene (16.8), toluene (18.1), ethyl acetate (18.6), methylethylketone (19.0), pimelinketone (20.3) and isopropylcarbinol respectively (21.5) 7 days.In each case, turgidity (%) or the gel fraction (%) that constitutes the pressure sensitive adhesive of pressure sensitive adhesive layer measured according to above-mentioned steps.The result provides in table 1.
Table 1
| Solvent | (SP)[(J/cm 3) 1/2] | Turgidity (%) | Gel fraction (%) |
| Normal heptane | 15.1 | 245 | 97.8 |
| Hexanaphthene | 16.8 | 293 | 98.0 |
| Toluene | 18.1 | 976 | 86.7 |
| Ethyl acetate | 18.6 | 1420 | 81.4 |
| Methylethylketone | 19.0 | 1440 | 78.5 |
| Pimelinketone | 20.3 | 973 | 99.8 |
| Isopropylcarbinol | 21.5 | 347 | 99.0 |
Table 1 shows that the solubility parameter (SP) (typically) that constitutes the pressure sensitive adhesive of cleaning sheet pressure sensitive adhesive layer is defined as 19.0[(J/cm
3)
1/2] (that is, wherein pressure sensitive adhesive has the SP of the solvent of maximum dilatation).
(2) mensuration of the viscosity of cleaning sheet (180 degree stripping strength)
Use Meyer #04 rod, with about 5 gram/rice
2Following 7 kinds of high boiling solvents in every kind of surface that is administered to base material (polyethylene terephthalate of 38 micron thickness (PET) film) on, measure stripping strength according to Japanese Industrial Standards (JIS) Z 0237 described method then, wherein use stainless steel plate (SUS 430 BA plates) as bur, and stripping strength is administered to bur at cleaning sheet and measure after last 1 minute.The result provides in table 2.
Used solvent: dodecane (16.2), perhydronaphthalene (18.0), diethyl phthalate (18.2), diethylene glycol monobutyl ether acetic ester (19.2), dibenzyl ether (20.5), diethylene glycol monobutyl ether (21.5) and 1,4-butyleneglycol (24.8).
Table 2
| Solvent | SP [(J/cm 3) 1/2] | 180 degree stripping strengths (cN/20mm) |
| Dodecane | 16.2 | 0.5 |
| Perhydronaphthalene | 18.0 | 4 |
| Adjacent benzyl dicarboxylate | 18.2 | 5 |
| The diethylene glycol monobutyl ether acetic ester | 19.2 | 5 |
| Dibenzyl ether | 20.5 | 9 |
| Diethylene glycol monobutyl ether | 21.5 | 8 |
| 1, the 4-butyleneglycol | 24.8 | 0 |
Table 2 shows, when cleaning sheet adheres to part by wet with solvent, solubility parameter (SP) (=19[(J/cm of the pressure sensitive adhesive of cleaning sheet pressure sensitive adhesive layer relatively
3)
1/2]), the solubility parameter of each solvent is respectively at ± 4[(J/cm
3)
1/2] scope in the time, this viscosity that adheres to cleaning sheet surpasses 0, shows that viscosity (adhesivity) is maintained.Therefore, this cleaning sheet can clean the settling that comprises the solvent with the solubility parameter in the above-mentioned scope effectively.
Embodiment 2
(1) solubility parameter of pressure sensitive adhesive (SP) δ
1Mensuration:
On the one side of the polyethylene film (base material) of 0.06 mm thick, form the thick pressure sensitive adhesive layer of forming by polyisobutene of 10 μ m, obtain cleaning sheet like this.
Use the cleaning sheet of above preparation, measure turgidity (%) or gel fraction (%) according to above-mentioned steps.The result provides in table 3.
Table 3
| Solvent | (SP)[(J/cm 3) 1/2] | Turgidity (%) | Gel fraction (%) |
| Normal heptane | 15.1 | 870 | 63.0 |
| Hexanaphthene | 16.8 | 1190 | 64.0 |
| Toluene | 18.1 | 890 | 65.5 |
| Ethyl acetate | 18.6 | 715 | 69.5 |
| Methylethylketone | 19.0 | 688 | 70.8 |
| Pimelinketone | 20.3 | 700 | 92.0 |
| Isopropylcarbinol | 21.5 | 770 | 94.0 |
Table 3 shows that the solubility parameter (SP) (typically) that constitutes the pressure sensitive adhesive of cleaning sheet pressure sensitive adhesive layer is defined as 16.8[(J/cm
3)
1/2] (that is, wherein pressure sensitive adhesive has the SP of the solvent of maximum dilatation).
(3) mensuration of the viscosity of cleaning sheet (180 degree stripping strength)
Measure the viscosity (180 degree stripping strength) of cleaning sheet according to the same way as of embodiment 1.The result provides in table 4.
Table 4
| Solvent | SP [(J/cm 3) 1/2] | 180 degree stripping strengths (cN/20mm) |
| Dodecane | 16.2 | 3 |
| Perhydronaphthalene | 18.0 | 1 |
| Diethyl phthalate | 18.2 | 1 |
| The diethylene glycol monobutyl ether acetic ester | 19.2 | 0.5 |
| Dibenzyl ether | 20.5 | 0.5 |
| Diethylene glycol monobutyl ether | 21.5 | 0 |
| 1, the 4-butyleneglycol | 24.8 | 0 |
Table 4 shows, when cleaning sheet adheres to part by wet with solvent, solubility parameter (SP) (=16.8[(J/cm of the pressure sensitive adhesive of cleaning sheet pressure sensitive adhesive layer relatively
3)
1/2]), the solubility parameter of described solvent is respectively at ± 4[(J/cm
3)
1/2] scope in the time, this viscosity that adheres to cleaning sheet surpasses 0, shows that viscosity (adhesivity) is maintained.Therefore, this cleaning sheet can clean the settling that comprises the solvent with the solubility parameter in the above-mentioned scope effectively.
Other embodiment and modification are obvious to those skilled in the art, so the present invention is not limited to above-mentioned particular case.
Claims (4)
1. cleaning sheet that is used to remove solvent-containing substance, this cleaning sheet comprises:
Base material; With
The pressure sensitive adhesive layer that on the one side at least of this base material, forms, described pressure sensitive adhesive comprises rubber-based pressure-sensitive adhesive or acrylic pressure-sensitive adhesive;
Wherein constitute the solubility parameter δ of the pressure sensitive adhesive of pressure sensitive adhesive layer
1(J/cm
3)
1/2With the solubility parameter δ that is included in the solvent in the solvent-containing substance to be removed
2(J/cm
3)
1/2Between difference DELTA δ at ± 4 (J/cm
3)
1/2Scope in.
2. the cleaning sheet of claim 1 is used in the cleaning screen printing stencil.
3. method of removing solvent-containing substance with cleaning sheet, described solvent-laden electrodeposition substance is on goods to be cleaned, this cleaning sheet comprises base material and the pressure sensitive adhesive layer that forms on the one side at least of this base material, described pressure sensitive adhesive comprises rubber-based pressure-sensitive adhesive or acrylic pressure-sensitive adhesive;
This method may further comprise the steps:
(1) definite solubility parameter δ that constitutes the pressure sensitive adhesive of pressure sensitive adhesive layer
1(J/cm
3)
1/2
(2) determine to be included in the solubility parameter of the solvent in the solvent-laden material to be removed
δ
2(J/cm
3)
1/2With
(3) select cleaning sheet to make δ
1With δ
2Between difference DELTA δ at ± 4 (J/cm
3)
1/2Scope in, use selected cleaning sheet to remove solvent-laden material then.
4. according to the method for claim 3, wherein in step (1), described cleaning sheet is immersed in the multiple solvent with different solubilities parameter turgidity or the gel fraction with the pressure sensitive adhesive of determining to constitute pressure sensitive adhesive layer respectively, and wherein the solubility parameter of pressure sensitive adhesive with solvent of maximum dilatation or minimum gel fraction is defined as the solubility parameter δ of the pressure sensitive adhesive that constitutes described cleaning sheet pressure sensitive adhesive layer then
1(J/cm
3)
1/2
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000168283A JP3280367B2 (en) | 2000-06-05 | 2000-06-05 | Cleaning sheet for removing solvent-containing material and method for removing solvent-containing material |
| JP168283/2000 | 2000-06-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1327017A CN1327017A (en) | 2001-12-19 |
| CN1179012C true CN1179012C (en) | 2004-12-08 |
Family
ID=18671309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011213027A Expired - Fee Related CN1179012C (en) | 2000-06-05 | 2001-06-04 | Cleaning sheet and method for removing matter containing solvent |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3280367B2 (en) |
| CN (1) | CN1179012C (en) |
| HK (1) | HK1039351B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI262905B (en) | 2001-11-13 | 2006-10-01 | Tosoh Corp | Quartz glass parts, ceramic parts and process of producing those |
| JP2004174314A (en) * | 2002-11-25 | 2004-06-24 | Nitto Denko Corp | Cleaning sheet and cleaning method of substrate treating apparatus |
| JP4321717B2 (en) * | 2004-02-10 | 2009-08-26 | 日東電工株式会社 | Solvent-containing material removal adhesive sheet |
| JP2007000860A (en) | 2005-05-26 | 2007-01-11 | Nitto Denko Corp | Cleaning sheet and cleaning method using the same |
| WO2007114431A1 (en) * | 2006-03-31 | 2007-10-11 | Maeda Kosen Co., Ltd. | Apparatus for cleaning waste and method of cleaning waste |
| JP7321329B1 (en) * | 2022-07-04 | 2023-08-04 | 日東電工株式会社 | Adhesive sheet |
-
2000
- 2000-06-05 JP JP2000168283A patent/JP3280367B2/en not_active Expired - Lifetime
-
2001
- 2001-06-04 CN CNB011213027A patent/CN1179012C/en not_active Expired - Fee Related
-
2002
- 2002-02-06 HK HK02100907.0A patent/HK1039351B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1327017A (en) | 2001-12-19 |
| JP2001347240A (en) | 2001-12-18 |
| JP3280367B2 (en) | 2002-05-13 |
| HK1039351A1 (en) | 2002-04-19 |
| HK1039351B (en) | 2005-04-08 |
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