CN1265434A - Water decomposable fibre web with fibrillated artificial - Google Patents
Water decomposable fibre web with fibrillated artificial Download PDFInfo
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- CN1265434A CN1265434A CN00104676A CN00104676A CN1265434A CN 1265434 A CN1265434 A CN 1265434A CN 00104676 A CN00104676 A CN 00104676A CN 00104676 A CN00104676 A CN 00104676A CN 1265434 A CN1265434 A CN 1265434A
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Abstract
Conventional water-decomposable fibrous sheets for cleaning sheets capable of being disposed of in toilets and others do not have well-balanced decomposability in water and strength. The water-decomposable fibrous sheet containing from 5 to 100% by mass of fibrillated rayon having a fiber length of at most 10 mm and having a degree of beating of at most 700 cc, optionally along with other fibers having a length of at most 10 mm, has good decomposability in water and high wet strength. When subjected to water-jetting treatment, it becomes more bulky to have a soft feel.
Description
The water that the present invention relates to easily to decompose and to be dispersed in the current can decompose fiber web.More particularly, the present invention relates under dry state and hygrometric state, have high strength but the water that can easily decompose in water can decompose fiber web.
What be used for that the wiping human body skin comprises between human body shelter or sanitation and hygiene etc. is the cleaning foil that paper or bondedfibre fabric are made.This cleaning foil must can decompose in water so that they directly can be handled in toilet after using.This be because, if use the back in toilet, to handle decomposable hardly cleaning foil in the water, will need could decompose and be dispersed in the septic tank for a long time, perhaps stop up the drainpipe around the toilet.
Use for convenience and effectively, the many disposable cleaning sheets that are used for the wiping purposes are to pack after moistening with chemical cleaner etc. and put goods on the market.Under such cleaning foil hygrometric state intensity must be high to being suitable for wiping containing under the situation of chemical cleaner etc.But also must well decompose in water after in toilet, handling.
For example, but Japanese patent application 24636/1995 discloses a kind of water dismantling-cleaning goods that contain adhesive, metal ion and organic solvent in carboxyl, the water soluble.Yet metal ion and organic solvent are with chafe.
But Japanese Patent Laid discloses 292924/1991 and discloses a kind of water dismantling-cleaning goods that contain vinal, and wherein infiltration has boric acid aqueous solution in the vinal; And Japanese Patent Laid discloses 198778/1994 and discloses a kind of water that contains the polyvinyl alcohol bondedfibre fabric and can decompose napkin, and wherein infiltration has borate ion and bicarbonate ion in the polyvinyl alcohol bondedfibre fabric.Yet, because polyvinyl alcohol is thermo-labile, but so water dismantling-cleaning goods and the water wet strength that can decompose napkin under 40 ℃ or higher temperature, will reduce.Recently, study the absorbing products that decomposes in the multiple water in the prior art, comprised sanitary napkin, lines of underpants, disposable diaper etc.Yet, consider that from security standpoint because above-mentioned water decomposable fibre web contains adhesive and electrolyte, so they can not be used as directly and the top layer fiber web of the absorbing products of skin Long contact time.
In addition, Japan special permission disclose 228214/1997 water that to disclose a kind of wet strength according to JIS P-8135 test be 100-800gf/25mm can decompose bondedfibre fabric, and this fabric is to mix the method for using the processing of spraying water with high pressure that fiber is tangled in the back with paper pulp by the fiber that 4-20mm is long to prepare.Tangle wherein owing to form fiber, therefore above-mentioned bondedfibre fabric has loftiness.Yet when the preparation bondedfibre fabric, long fiber is handled by spraying water with high pressure and is tangled, and therefore the bondedfibre fabric of preparation will have high relatively wet strength.Therefore,, be difficult to make the bondedfibre fabric of preparation to have bulkiness, intensity and the water decomposability of fine balance, and the bondedfibre fabric of preparation also is unsuitable for handling in water closet etc. according to disclosed technology.
The present invention is in order to solve above-mentioned problems of the prior art, and an object of the present invention is to provide a kind of water that can finely decompose in water and have a high dry strength and can decompose fiber web.
A kind of wet strength is high can not decompose fiber web at the water of fine use under the hygrometric state to wherein not adding adhesive yet even another object of the present invention provides.
Another purpose of the present invention provides a kind of water that is used safely in skin can decompose fiber web.
Specifically, the invention provides a kind of water and can decompose fiber web, comprise comprising fibrillation and being no more than other fiber of 10mm by the length of the fibrillation artificial silk of its microfiber that stretches out and 0%-97% quality of 3%-100% quality in this fiber web, wherein the beating degree of fibrillation artificial silk is no more than 700cc; The length of fibrillation at its place, Mass Distribution peak is 1.8mm-10mm; And the microfiber that stretches out by the fibrillation of fibrillation artificial silk and at least a other fibrillation, other microfiber and other fibre matting of stretching out by other fibrillation at least.
The present invention also provides a kind of water can decompose fiber web, comprise comprising fibrillation and being no more than other fiber of 10mm by the length of the fibrillation artificial silk of its microfiber that stretches out and 0%-97% quality of 3%-100% quality in this fiber web, wherein the length of fibrillation at its place, Mass Distribution peak is 1.8mm-10mm; Length is no more than the 0.1-65% quality of the fento Victor fibrillation artificial silk deadweight of 1mm; And the microfiber that stretches out by the fibrillation of fibrillation artificial silk and at least a other fibrillation, other microfiber and other fibre matting of stretching out by other fibrillation at least.
Above-mentioned water can decompose the bondedfibre fabric that fiber web is preferably handled through water spray.
The present invention also provides a kind of water can decompose fiber web, comprise comprising fibrillation and being no more than other fiber of 10mm by the length of the fibrillation artificial silk of its microfiber that stretches out and 0%-97% quality of 3%-100% quality in this fiber web, wherein the beating degree of fibrillation artificial silk is no more than 700cc; The length of fibrillation at its place, Mass Distribution peak is 1.8mm-10mm; And the microfiber that stretches out by the fibrillation of fibrillation artificial silk and at least a other fibrillation, other microfiber and other fiber hydrogen bonding that stretch out by other fibrillation at least.
The present invention also provides a kind of water can decompose fiber web, comprise comprising fibrillation and being no more than other fiber of 10mm by the length of the fibrillation artificial silk of its microfiber that stretches out and 0%-97% quality of 3%-100% quality in this fiber web, wherein the length of fibrillation at its place, Mass Distribution peak is 1.8mm-10mm; Length is no more than the 0.1-65% quality of the fento Victor fibrillation artificial silk deadweight of 1mm; And the microfiber that stretches out by the fibrillation of fibrillation artificial silk and at least a other fibrillation, other microfiber and other fiber hydrogen bonding that stretch out by other fibrillation at least.
Above-mentioned water can decompose that fiber web preferably prepares in paper technology.At this moment, the beating degree of fibrillation artificial silk preferably is no more than 400cc.
Certainly, dry state and even in water under the hygrometric state, water of the present invention all has high intensity in the time of can decomposing fiber web as paper handkerchief.In addition, when it uses the back to immerse in the big water gaging, be easy to decompose.Therefore, after the use, it can be handled in toilet etc.The more important thing is that water of the present invention can decompose fiber web and be made up of the material that does not harm human body.
More particularly, can decompose in the fiber web,, therefore realize the fine balance of decomposability and intensity in the water because the microfiber of fibrillation artificial silk serves as the adhesive between the fiber at water of the present invention.Because entanglement or hydrogen bonding between microfiber and other fiber, fiber web has obtained high intensity.On the other hand, when contacting with big water gaging, microfiber and other fiber separation, and therefore make fiber web be easy to decompose in water.Particularly, when the microfiber that stretches out when the fibrillation from fibrillation artificial silk is handled other microfiber of stretching out with at least a other fibrillation, by other fibrillation and other fibre matting by water spray, fiber is bonded together solidly, and because the hydrogen bond force of microfiber increases fibroreticulate dry strength.Such hydrogen bonded may disappear under wet condition sometimes, but since the entanglement of microfiber in addition under hygrometric state this sheet also can keep high intensity.
On the other hand, when water of the present invention can decompose fiber web by for example papermaking process, promptly handle when making without spraying water, fiber web is owing to the existence of microfiber has high intensity.This microfiber can show the same high or higher hydrogen bond force with paper pulp, so this fiber web has good balance between decomposability and the intensity in water.Has excellent intensity when the fiber web for preparing with papermaking process uses like this under the dry state condition.In addition, even in such sheet, wet strength since the entanglement of microfiber also may increase.
Among the present invention, when wherein the length of fibrillation at its place, Mass Distribution peak was 2.5mm-less than the beating degree of 4.5mm and fibrillation artificial silk less than 400cc, the 0.5-15% quality that the quality that length is no more than the microfiber of 1mm reaches the deadweight of fibrillation artificial silk was desirable.
When wherein the length of fibrillation at its place, Mass Distribution peak was 2.5mm-less than the beating degree of 4.5mm and fibrillation artificial silk less than 400-700cc, the 0.1-5% quality that the quality that length is no more than the microfiber of 1mm reaches the deadweight of fibrillation artificial silk was desirable.
Wherein the length of fibrillation at its place, Mass Distribution peak is the beating degree of 4.5mm-7.5mm and fibrillation artificial silk during less than 400cc, and the 8-65% quality that the quality that length is no more than the microfiber of 1mm reaches the deadweight of fibrillation artificial silk is desirable.
Wherein the length of fibrillation at its place, Mass Distribution peak is the beating degree of 4.5mm-7.5mm and fibrillation artificial silk during less than 400-700cc, and the 0.3-50% quality that the quality that length is no more than the microfiber of 1mm reaches the deadweight of fibrillation artificial silk is desirable.
When wherein the length of fibrillation at its place, Mass Distribution peak was 3 ± 0.5mm, the 0.1-10% quality that the quality that length is no more than the microfiber of 1mm reaches the deadweight of fibrillation artificial silk was desirable.
When wherein the length of fibrillation at its place, Mass Distribution peak was 4 ± 0.5mm, the 1-14% quality that the quality that length is no more than the microfiber of 1mm reaches the deadweight of fibrillation artificial silk was desirable.
When wherein the length of fibrillation at its place, Mass Distribution peak was 5 ± 0.5mm, the 0.3-45% quality that the quality that length is no more than the microfiber of 1mm reaches the deadweight of fibrillation artificial silk was desirable.
When wherein the length of fibrillation at its place, Mass Distribution peak was 6 ± 0.5mm, the 5-50% quality that the quality that length is no more than the microfiber of 1mm reaches the deadweight of fibrillation artificial silk was desirable.
When wherein the length of fibrillation at its place, Mass Distribution peak was 7 ± 0.5mm, the 10-65% quality that the quality that length is no more than the microfiber of 1mm reaches the deadweight of fibrillation artificial silk was desirable.
Form by methods of beating in the method for fibrillation artificial silk, the fibrillation length of fibrillation artificial silk may become longer or become shorter owing to the difference of methods of beating.In addition, fibrillation artificial silk (artificial silk before the making beating) self length does not have deviation yet.Therefore, this change and the deviation of fibre length have been considered above.For example, wherein fibre length is 3mm before the making beating, 4mm, and 5mm, 6mm or 7mm, the length of fibrillation at its place, Mass Distribution peak is 3 ± 0.5mm, 4 ± 0.5mm, 5 ± 0.5mm, 6 ± 0.5mm or 7 ± 0.5mm.
Wherein, length be no more than 1mm microfiber the deadweight of weight and fibrillation artificial silk the ratio definition as above, the preferred 1.2-1.9 dtex of the fineness of fibrillation artificial silk.
Length is no more than the preferably biodegradable fiber of fiber of 10mm.It is desirable to, biodegradable fiber is a kind of fiber that is selected from regenerated cellulose, paper pulp, aliphatic polyester, polyvinyl alcohol and collagen at least.
Water of the present invention can decompose the fibroreticulate 20-100g/m that quantitatively is preferably
2
According to JIS P-4501 test, the resolution in the fiber web water preferably is no more than 200 seconds.
Fibroreticulate wet strength preferably is not less than 110g/25mm.
Fibroreticulate dry strength preferably is not less than 350g/25mm.
The present invention also provides a kind of water can decompose fiber web, comprising in this fiber web that 3%-100% quality (preferred 5-100% quality) forms other fiber that the length of fibrillation artificial silk that its fibriilar length is 1.8mm-10mm and 0%-97% quality (preferred 0-95% quality) is no more than 10mm, wherein quantitatively is 20-100g/m
2Thickness is not less than 0.2mm, is no more than 200 seconds according to resolution in the water of JIS P-4501 test and wet strength is not less than 110g/25mm under aforementioned hygrometric state condition.
Water of the present invention can decompose the bondedfibre fabric that fiber web is preferably handled through water spray.It is bulk and has soft feeling.
The fibroreticulate beating degree that fibrillation artificial silk is formed preferably is no more than 400cc, and fiber web prepares in papermaking process.
Fig. 1 is the zoom microscope photo that water of the present invention can decompose a fibroreticulate example.
Fig. 2 is the pictorial image of photo among Fig. 1.
Fig. 3 represents not pull an oar the quality distribution diagram of fibre length of artificial silk.
Fig. 4 is that the expression fibre length is the quality distribution diagram of the fibre length of the making beating artificial silk after the artificial silk making beating of 5mm.
Fig. 5 is the quality distribution diagram of fibre length of the artificial silk of expression free beating.
Fig. 6 is that the expression fibre length is the quality distribution diagram of the fibre length of the making beating artificial silk after the making beating in the artificial silk hygrometric state of 3mm.
Fig. 7 is that the expression fibre length is the quality distribution diagram of the fibre length of the making beating artificial silk after the making beating in the artificial silk hygrometric state of 4mm.
Fig. 8 is that the expression fibre length is the quality distribution diagram of the fibre length of the making beating artificial silk after the making beating in the artificial silk hygrometric state of 6mm.
Fig. 9 is that the expression fibre length is the quality distribution diagram of the fibre length of the making beating artificial silk after the making beating in the artificial silk hygrometric state of 7mm.
Figure 10 is that the expression fibre length is the quality distribution diagram of the fibre length of the making beating artificial silk after the making beating in the artificial silk hygrometric state of 5mm.
Figure 11 is the graph of a relation between resolution and the different beating degree artificial silks that fibrillation artificial silk is provided in the fibroreticulate wet strength for preparing among the expression embodiment H and its water.
Be used for fibrillation artificial silk of the present invention and be meant the regenerated cellulose rayon with meticulous fibrillated surface, perhaps just those have the fiber of the microfiber of tearing from the fibrillation surface and stretching out that has microscopic size on the thickness.
Fig. 1 and Fig. 2 are zoom microscope photo and the pictorial image that water of the present invention can decompose a fibroreticulate example, and they comprise fibrillation artificial silk 1, artificial silk 4 and paper pulp 3 respectively.The fiber web of Fig. 1 and Fig. 2 is through the Processing of Preparation of spraying water by the fiber web that comprises fibrillation artificial silk 1, artificial silk 4 and paper pulp 3.As can be seen, microfiber 2 is to stretch out from the surface of fibrillation artificial silk 1 from Fig. 1 and Fig. 2.As shown in the figure, the surface of conventional regeneration cellulose (artificial silk 4) is smooth, and the surface fibrillation of fibrillation artificial silk 1 has microfiber 2 on every side to it, and artificial silk 4 has different structures between the two with fibrillation artificial silk 1.
This kind fibrillating fibre can pass through, for example method preparation of machining artificial silk when the artificial silk suction has water also still moistening.Specifically, they can according to, for example in the agitator in water the method for strong agitation artificial silk, the perhaps method preparation of (this is a kind of wet type methods of beating) making beating artificial silk in pulper, jordan, beater etc.More precisely, fibrillating fibre comprises that for example viscose silk etc. is back makes it the fiber of fibrillation with mechanical means with acid treatment wet spinning artificial silk, and mechanical means makes the molten fiber that spins the preparation of artificial silk fibrillation etc.Except above-mentioned these, fibrillation artificial silk also can be with conventional wet spinning regenerated cellulose preparation.
Only be fibrillation artificial silk, or the mixture that fibrillation artificial silk and other length are no more than the fiber of 10mm forms fiber web, and the fiber web that obtains preferably sprayed water wait processing formation water of the present invention can decompose fiber web.In this method, the microfiber around the fibrillation artificial silk surface and other fiber or other microfiber tangle.Therefore, the structure of the specific entanglement of fiber web of the present invention is different from the structure of the conventional spunlaced bondedfibre fabric of component fibre mat.As can be seen, the microfiber 2 around the fibrillation artificial silk 1 tangles with other fiber (artificial silk and fibrillation artificial silk 1), and paper pulp 3 is present in these fibers from Fig. 1 and Fig. 2.
The fibriilar length of forming fibrillation artificial silk is 1.8mm-10mm (at place, fibriilar Mass Distribution peak).The fibriilar length of indication is meant the fibriilar length except microfiber on every side herein, but is not meant the length of microfiber.If fibrillation is longer than restricted portion in the length at its place, Mass Distribution peak, when water spray was handled, not only microfiber but also fibrillation be mat, perhaps fibrillation will with other fiber (artificial silk 4 and paper pulp 3) mat.In these cases, the water decomposability of bondedfibre fabric is with variation.On the other hand, if fibriilar length is shorter than restricted portion, microfiber can not be entangled to desirable degree, if such, the wet strength of bondedfibre fabric is with step-down, and making beating is the preferred 3-6mm of length of artificial silk before.In other words, the fibrillation of fibrillation artificial silk is preferably 2.5-6.5mm in the length at its place, Mass Distribution peak.
When using fibrillation length to be at least the fibrillation artificial silk of 7mm and when fiber web during through the water spray processing, the fibrillation of fibrillation artificial silk will tangle too severely and the decomposability of fiber web in water that contain them with step-down, for fear of the reduction of the decomposability of above-mentioned situation fiber web in water, quantitatively being controlled at of bondedfibre fabric need be no more than 30g/m
2In this case, also needing fibrillation length is that the ratio of 7mm or longer fibrillation artificial silk is reduced to and is no more than 10% quality.
For concrete qualification can be preferred for fibrillation artificial silk of the present invention, can adopt some method.A kind of method is the Mass Distribution of analyzing fibrillation and forming the microfiber of fibrillation artificial silk.Microfiber is shorter than fibrillation.Therefore, fiber length distribution will be illustrated the Mass Distribution of the microfiber of fibrillation and composition fibrillation artificial silk in the analysis fibrillation artificial silk.The another kind of concrete method that limits the fibrillation artificial silk of plan use is based on the beating degree (CSF of fibrillation artificial silk; Canadian Standard Freeness).
The not making beating of n=3, the quality distribution diagram of fibrillation artificial silk (CSF=740cc, fibre length 5mm, 1.7 dtexs) fibre length is not illustrated among Fig. 3.As shown in Figure 3, the do not pull an oar Mass Distribution of artificial silk concentrates on fibre length mostly and is approximately 5mm ± 1mm.Not making beating artificial silk among Fig. 3 is pulled an oar in various degree under hygrometric state, and the Mass Distribution of fibrillation artificial silk of making beating is analyzed with respect to different fibre lengths.The result who obtains is shown among Fig. 4.Preparation concentration is the artificial silk sample of 0.75% quality and pulls an oar in blender.As shown in Figure 4, two peaks appear in Mass Distribution.This shows, be used for the artificial silk that fibrillation artificial silk of the present invention can be defined as the fibre length peak of a kind of fibriilar fibre length peak with fibrillation artificial silk self and fibrillation microfiber.
As mentioned above, fibrillation artificial silk used herein is by hygrometric state making beating artificial silk preparation down.If be different from this, artificial silk is pulled an oar in conventional free beating method to promote making beating (so that making beating artificial silk has the indication beating degree numerical value that reduces), and it will fully be ground into granule so, as shown in Figure 5.Under such condition, most of artificial silks will lose their original length, and free beating artificial silk is not included in the scope that is used for fibrillation artificial silk of the present invention.
For the ratio that is preferred for microfiber of the present invention and fibrillation artificial silk, require fibrillation by fibrillation artificial silk to stretch out and microfiber that length is no more than 1mm reaches the 0.1-65% quality of fibrillation artificial silk deadweight.Fibrillation artificial silk with above-mentioned form can be no more than 700cc by beating degree that artificial silk is pulled an oar and obtain.Use this fibrillation artificial silk, fiber web can well decompose in water and have preferred intensity, in this kind fibrillation artificial silk, the remainder that reaches about 35-99.9% quality mainly comprises the fibrillation of fibrillation artificial silk, but also comprises microfiber and the short artificial silk of cutting through the length of long-time promotion fibrillation.If such, the fibriilar length of the fibrillation artificial silk of making beating is shorter slightly than the fibriilar original length of not making beating, perhaps because microfiber stretches out a bit outstanding in appearance from fibriilar end.Therefore, fibrillation is the artificial silk of not pulling an oar (artificial silk before the making beating) original length ± 0.5mm in the length at its place, Mass Distribution peak.
Fibrillation artificial silk depends on the pristine fibre length of the artificial silk of not pulling an oar and the beating degree of fibrillation artificial silk with respect to the Mass Distribution of fibre length.In view of the above,, pull an oar under the 4mm, the artificial silk hygrometric state of 6mm or 7mm different length, and analyze the Mass Distribution of making beating artificial silk with respect to different fibre lengths to having 3mm.Datagram is shown among Fig. 6-Fig. 9.For making beating artificial silk sample, its datagram is shown among Fig. 4 and Fig. 6-Fig. 9, and length is no more than the Mass Distribution of microfiber of 1mm and length approach the not pull an oar fibriilar Mass Distribution of artificial silk original length (but changing) and provides in following table 1-1 between-0.6mm-+0.4mm.
As can be seen, in the fibrillation artificial silk after the making beating, fibrillation is at the length at its place, Mass Distribution peak original length variation ± 0.5mm by the artificial silk before the making beating from Fig. 6-Fig. 9, ± 0.3mm, or-0.3-+0.1mm.
Table 1-1
| ????3mm | Beating degree (cc) | Be no more than 1.0mm (% quality) | (2.4-3.4mm % quality) |
| ????745 | ????3.36 | ????60.33 | |
| ????464 | ????2.61 | ????72.84 | |
| ????337 | ????4.40 | ????67.89 | |
| ????203 | ????4.49 | ????65.35 | |
| ????96 | ????6.31 | ????58.86 |
| ????4mm | Beating degree (cc) | Be no more than 1.0mm (% quality) | (3.4-4.4mm % quality) |
| ????745 | ????3.78 | ????45.66 | |
| ????615 | ????1.85 | ????55.19 | |
| ????445 | ????3.70 | ????58.02 | |
| ????353 | ????7.02 | ????59.58 | |
| ????227 | ????11.47 | ????47.23 | |
| ????147 | ????13.28 | ????41.51 |
| ????5mm | Beating degree (cc) | Be no more than 1.0mm (% quality) | (4.4-5.4mm % quality) |
| ????740 | ????0.69 | ????76.56 | |
| ????600 | ????4.06 | ????63.80 | |
| ????400 | ????22.49 | ????47.25 | |
| ????200 | ????35.95 | ????32.77 | |
| ????100 | ????41.76 | ????22.72 |
| ????6mm | Beating degree (cc) | Be no more than 1.0mm (% quality) | (5.4-6.4mm % quality) |
| ????740 | ????4.19 | ????28.64 | |
| ????500 | ????18.45 | ????47.78 | |
| ????410 | ????22.90 | ????46.98 | |
| ????204 | ????47.74 | ????21.85 | |
| ????102 | ????45.81 | ????18.12 |
| ????7mm | Beating degree (cc) | Be no more than 1.0mm (% quality) | (6.4-7.2mm % quality) |
| ????732 | ????2.83 | ????34.29 | |
| ????607 | ????28.98 | ????43.07 | |
| ????469 | ????49.06 | ????24.96 | |
| ????348 | ????63.29 | ????10.72 | |
| ????164 | ????61.53 | ????6.19 | |
| ????95 | ????55.58 | ????4.39 |
Then, among the table 1-2,, provide the ratio that length is no more than the microfiber of 1.0mm when being that 5mm and fineness are that the artificial silk of 1.7 dtexs is pulled an oar when changing beating degree gradually simultaneously in the 740cc-67cc scope to pristine fibre length.In table 1-3, when being that 3mm and fineness are that the artificial silk of 1.4 dtexs is pulled an oar change beating degree simultaneously gradually in the 644cc-211cc scope to pristine fibre length, and, provide the ratio that length is no more than the microfiber of 1.0mm when being that 3mm and fineness are that the artificial silk of 1.7 dtexs is pulled an oar and changed beating degree gradually simultaneously in the 653cc-163cc scope to pristine fibre length.In table 1-4, when being that 5mm and fineness are that the artificial silk of 1.4 dtexs is pulled an oar change beating degree simultaneously gradually in the 676cc-135cc scope to pristine fibre length, and, provide the ratio that length is no more than the microfiber of 1.0mm when being that 5mm and fineness are that the artificial silk of 1.7 dtexs is pulled an oar and changed beating degree gradually simultaneously in the 695cc-186cc scope to pristine fibre length.Table 1-2
Table 1-3
Table 1-4
| 5mm 1.7 dtexs | Beating degree (cc) | Or 1.0mm shorter (% quality) |
| ?740 | ?0.69 | |
| ?520 | ?12.77 | |
| ?377 | ?23.20 | |
| ?185 | ?39.37 | |
| ?67 | ?35.47 |
| 3mm 1.4 dtexs | Beating degree (cc) | Or 1.0mm shorter (% quality) | 3mm 1.7 dtexs | Beating degree (cc) | Or 1.0mm shorter (% quality) |
| ?644 | ?0.57 | ?653 | ?0.16 | ||
| ?626 | ?0.46 | ?584 | ?0.23 | ||
| ?595 | ?0.40 | ?472 | ?0.43 | ||
| ?563 | ?0.78 | ?372 | ?0.59 | ||
| ?480 | ?0.71 | ?333 | ?0.63 | ||
| ?407 | ?0.69 | ?291 | ?1.13 | ||
| ?352 | ?0.87 | ?259 | ?1.25 | ||
| ?340 | ?1.05 | ?212 | ?1.54 | ||
| ?297 | ?1.32 | ?176 | ?1.92 | ||
| ?241 | ?1.39 | ?163 | ?3.61 | ||
| ?211 | ?1.77 |
| 5mm 1.4 dtexs | Beating degree (cc) | Or 1.0mm shorter (% quality) | 5mm 1.7 dtexs | Beating degree (cc) | Or 1.0mm shorter (% quality) |
| 676 | ?1.08 | ?695 | ?0.47 | ||
| ?646 | ?1.06 | ?625 | ?1.49 | ||
| ?631 | ?2.08 | ?521 | ?7.17 | ||
| ?554 | ?8.48 | ?229 | ?20.96 | ||
| ?433 | ?7.39 | ?200 | ?17.14 | ||
| ?339 | ?11.18 | ?198 | ?20.04 | ||
| ?242 | ?21.57 | ?198 | ?18.10 | ||
| ?183 | ?20.43 | ?198 | ?17.59 | ||
| ?161 | ?26.55 | ?195 | ?16.92 | ||
| ?135 | ?24.32 | ?195 | ?15.0 | ||
| ?190 | ?15.14 | ||||
| ?188 | ?19.54 | ||||
| ?187 | ?17.41 | ||||
| ?186 | ?13.94 |
Among the table 1-1, the data in thick line (thick-lined) grid are the fibrillation artificial silk that the present invention most preferably uses.Except beating degree among the table 1-2 is the fiber data of 740cc, table 1-2, the data among 1-3 and the 1-4 also are the fibrillation artificial silk that the present invention most preferably uses.At this, the data among table 1-1 and the 1-2 are by obtaining with blender making beating artificial silk, and the data among table 1-3 and the 1-4 are by obtaining being used for mass-produced pulper or jordan making beating artificial silk.In the above table, should be realized that, be no more than the ratio (parts by mass) of the microfiber of 1mm less than ratio with the blender preparation by length in the fibrillation artificial silk of pulper or jordan preparation.Yet water of the present invention can decompose fiber web can be by above-mentioned any method (blender, pulper and jordan) preparation to obtain decomposability and wet strength in the fine counter-balanced water.
Artificial silk length before the making beating be 3mm-less than 5mm (being that the fibriilar length of fibrillation artificial silk at its place, Mass Distribution peak is that 2.5mm-is less than 4.5mm) and beating degree less than the 400cc preferred range in, the microfiber that length is no more than 1mm reaches the 0.5-15% quality of fibrillation artificial silk deadweight (gross mass).Yet if use pulper or jordan making beating artificial silk, the upper limit 15% quality becomes about 8% quality.When being 3mm-in artificial silk length before the making beating less than 5mm (being that the fibriilar length of fibrillation artificial silk at its place, Mass Distribution peak is that 2.5mm-is less than 4.5mm) and beating degree from 400cc-700cc, the microfiber that length is no more than 1mm reaches the 0.1-5% quality of fibrillation artificial silk deadweight (gross mass).Yet if use pulper or jordan making beating artificial silk, the upper limit 5% quality becomes about 3% quality.If beating degree is 400cc-600cc, lower limit 0.1% quality becomes 0.2% quality.
Artificial silk length is in 5mm-7mm (being that the fibriilar length of fibrillation artificial silk at its place, Mass Distribution peak is 4.5mm-7.5mm) and the fiber of beating degree less than 400cc before making beating, and the microfiber that length is no more than 1mm reaches the 8-65% quality that fibrillation artificial silk is conducted oneself with dignity.Yet if use pulper or jordan making beating artificial silk, the upper limit 65% quality becomes about 30% quality, and lower limit 8% quality becomes 5% quality.Still artificial silk length is that 5mm-7mm (being that the fibriilar length of fibrillation artificial silk at its place, Mass Distribution peak is 4.5mm-7.5mm) and beating degree are in the fiber of 400cc-700cc before making beating, and the microfiber that length is no more than 1mm reaches the 0.3-50% quality that fibrillation artificial silk is conducted oneself with dignity.Yet if use pulper or jordan making beating artificial silk, the upper limit 50% quality becomes about 20% quality.If beating degree is 400cc-600cc, lower limit 0.3% quality becomes 2% quality.
In addition, be that (be fibrillation artificial silk in the fibriilar length at its place, Mass Distribution peak is 3 ± 0.5mm) preferable range, the microfiber that length is no more than 1mm reaches the 0.1-10% quality of fibrillation artificial silk deadweight to 3mm in artificial silk length before the making beating.Yet if use pulper or jordan making beating artificial silk, the upper limit 10% quality becomes about 5% quality.If beating degree is less than 600cc, lower limit 0.1% quality becomes 0.2% quality.
In artificial silk length before the making beating is that (be fibrillation artificial silk in the fibriilar length at its place, Mass Distribution peak is 4 ± 0.5mm) fiber, the microfiber that length is no more than 1mm reaches the 1-14% quality of fibrillation artificial silk deadweight to 4mm.Yet if use pulper or jordan making beating artificial silk, this scope becomes about 0.3-10% quality.If use pulper or jordan making beating artificial silk and beating degree less than 600cc, lower limit becomes 0.5% quality.
In artificial silk length before the making beating is that (be fibrillation artificial silk in the fibriilar length at its place, Mass Distribution peak is 5 ± 0.5mm) fiber, the microfiber that length is no more than 1mm reaches the 0.3-45% quality of fibrillation artificial silk deadweight to 5mm.Yet if use pulper or jordan making beating artificial silk, the upper limit 45% quality becomes about 30% quality.If use pulper or jordan making beating artificial silk and beating degree less than 600cc, lower limit becomes 5% quality.
In artificial silk length before the making beating is that (be fibrillation artificial silk in the fibriilar length at its place, Mass Distribution peak is 6 ± 0.5mm) fiber, the microfiber that length is no more than 1mm reaches the 5-50% quality of fibrillation artificial silk deadweight to 6mm.Yet if use pulper or jordan making beating artificial silk, this scope becomes about 0.5-30% quality.If use pulper or jordan making beating artificial silk and beating degree less than 600cc, lower limit becomes 5% quality.
In artificial silk length before the making beating is that (be fibrillation artificial silk in the fibriilar length at its place, Mass Distribution peak is 7 ± 0.5mm) fiber, the microfiber that length is no more than 1mm reaches the 10-65% quality of fibrillation artificial silk deadweight to 7mm.Yet if use pulper or jordan making beating artificial silk, this scope becomes about 3-50% quality.If use pulper or jordan making beating artificial silk and beating degree less than 600cc, lower limit becomes 8% quality.
The weight ratio that is no more than the microfiber of 1mm and the deadweight of fibrillation artificial silk when length as mentioned above, the preferred 1.2-1.9 dtex of the fineness of fibrillation artificial silk.
The beating degree that is preferred for fibrillation artificial silk of the present invention is described below.When promoting making beating (the fibrillation artificial silk that obtains pulling an oar, the numerical value of its indication beating degree reduces), the ratio of the Mass Distribution of staple fibre (comprising microfiber) increases.Among the present invention, the beating degree of fibrillation artificial silk preferably is no more than 700cc.Beating degree can not have the necessary intensity of decomposition fiber web in the water of the present invention greater than the fibrillation artificial silk of 700cc.The beating degree of fibrillation artificial silk is more preferably no more than 600cc among the present invention.Because the microfiber of the preferred fibrillation artificial silk of this kind, the increase of fiber web intensity will be more obvious.The beating degree of this fibrillation artificial silk is most preferably not exceeding 400cc.Even beating degree is no more than 200cc, or the fibrillation artificial silk that does not even surpass 100cc is when being used to prepare water and can decomposing fiber web, and it also may have decomposability in good counter-balanced wet strength and the water.
Yet, if used through too many making beating fibrillation artificial silk (therefore too big reduction the numerical value of indication beating degree), for example beating degree is 0cc, and the water yield of filtering by this net in the preparation will reduce, therefore, need this fiber web to comprise the mixture of this kind fibrillation artificial silk and other fiber.At this moment, the ratio of fibrillation artificial silk preferably is no more than 30%, more preferably no more than 20%.Further preferably, the fibre length of fibrillation artificial silk (before the making beating) is no more than 6mm, more preferably no more than 5mm.
The beating degree of fibrillation artificial silk can be by changing beating time and selecting methods of beating to control.For example, when artificial silk is to pull an oar in blender, what Jia Gong time can be suitable therein determines.For example, in order to obtain fibrillation artificial silk, the liquid that will contain artificial silk is processed in blender.To this, for example artificial silk concentration can be 0.75% in the liquid, and it can be processed in the commercially available 100V blender of routine.At this moment, in the following method, the beating degree of fibrillation artificial silk is relevant with beating time in the blender.Below data can have with beating time ± 30 seconds deviation.When artificial silk concentration changes, will change for obtaining the beating time of required beating degree in blender.
Beating time 2 seconds, beating degree=700cc
Beating time 3 seconds, beating degree=600cc
Beating time 4 seconds, beating degree=500cc
Beating time 5 seconds, beating degree=300cc
Beating time 7-8 second, beating degree=200cc
Beating time 8-10 second, beating degree=50cc.
When artificial silk (beating degree 740cc, fibre length 5mm, 1.7 dtexs) is when pulling an oar in replacing the pulper of above-mentioned blender, data are as follows:
Beating time 120 seconds, beating degree=629cc
Beating time 330 seconds, beating degree=237cc.
The Mass Distribution of the fibre length of making beating fiber as shown in figure 10.
The preferred 1-7 of the fineness dawn (DENIER) of the fibrillation artificial silk of representing with DENIER, just about 1.1-7.7 dtex.If fineness is less than above-mentioned scope, the fibrillation of fibrillation artificial silk will tangle too many and contain that decomposability will reduce in its fibroreticulate water.On the other hand, if its fineness greater than above-mentioned scope, fibroreticulate formation is bad, and its productivity ratio reduces.
The fibre length of fibrillation artificial silk, its Mass Distribution with respect to fibre length, its beating degree and its fineness can suitably be controlled the ratio of fibrillation artificial silk and the type of other fiber of mixing with it according to their data.
Water of the present invention can decompose fiber web and can only be made by fibrillation artificial silk, but also can contain the fiber that other length outside the fibrillation artificial silk is no more than 10mm, can decompose in the fiber web at the water that contains fibrillation artificial silk and other fiber, the microfiber of fibrillation artificial silk will be well with other fibre matting to guarantee the high strength of this net, when having big water gaging in this net, to therefrom discharge with the microfiber of other fibre matting, and therefore make this Netease in decomposing in water.
Be no more than the fiber of 10mm as other length, those fine being dispersed in the water preferably, but loosen collagen fibre in the water just, herein in the water of indication in dispersed and the water decomposability have the identical meaning, be meant that fiber is fine when contacting with big water gaging to be dispersed in the water.Those biodegradable fibers more preferably, Biodegradable fibers are spontaneous when still in natural environment to be decomposed naturally.The length of other fiber used herein is meant their average length, the preferred 1mm of its length (or average length) lower limit or higher.
Being used for other fiber of the present invention can be those at least a fibers that are selected from natural fabric and chemical fibre.Natural fabric comprises that those come from for example fiber of soft wood pulp, hard wood pulp etc. of wood pulp, comprises that also those come from the fiber of abaca, linter pulp etc., and these natural fabrics are biodegradable.Certainly, preferably have the softwood kraft pulp of bleaching of polymolecularity and the hardwood kraft pulp of bleaching in the water.Can also use for example regenerated fiber etc. of artificial silk of chemical fibre herein; Synthetic fiber such as polypropylene, polyvinyl alcohol, polyester, polyacrylonitrile; Biodegradable synthetic fiber; Poly synthetic paper-pulp etc.In these fibers, preferably biodegradable artificial silk.Other Biodegradable fibers that is still PLA, poly-several lactones, for example poly-butanedioic acid fourth diester of aliphatic polyester, polyvinyl alcohol, collagen etc. that can also use, need not to point out, any fiber except above-mentioned is as long as they can be dispersed in the water and may be used among the present invention.
For softwood pulp, its beating degree preferably approximately is 500-700cc.To have the form of similar paper if its beating degree, contains the bondedfibre fabric of this paper pulp less than above-mentioned scope, and will have harsh feeling.Yet, do not have necessary strength if its beating degree, contains the fiber web of this paper pulp greater than above-mentioned scope.
Water of the present invention can decompose fiber web and can only be formed by fibrillation artificial silk, also can be formed by the mixture that fibrillation artificial silk and other length are no more than other fiber of 10mm.At this, it is 3-100% quality and the ratio of other fiber is the 0-97% quality that the ratio of component preferably makes the ratio of fibrillation artificial silk, the ratio that more preferably makes fibrillation artificial silk is a 5-100% quality and the ratio of other fiber is the 0-95% quality, the ratio that further preferably makes fibrillation artificial silk is a 5-70% quality and the ratio of other fiber is the 30-95% quality, and the ratio that most preferably makes fibrillation artificial silk is a 10-50% quality and the ratio of other fiber is the 50-90% quality.
In order to make the fiber web can be in wiping under the hygrometric state, the present invention fibroreticulate quantitatively also preferred (this can refer to " Metsuke ") be 20-100g/m
2If this is quantitatively less than above-mentioned scope, this net does not have necessary wet strength, yet if this is quantitatively greater than above-mentioned scope, this net is not pliable and tough.Particularly, in order to be applicable to human body skin, from the angle of wet strength and soft feeling, the quantitatively more preferably 30-70g/m of this net
2
Water can decompose fiber web can produce directly use of back in methods such as wet papermaking.This water can decompose fiber web since wherein the entanglement of microfiber can guarantee its intensity, in addition, owing to be present in hydrogen bond on the OH group on fibrillation artificial silk surface, its dry strength may increase.Along with the increase of beating degree, just along with the increase of microfiber quantity, the surface area of fiber increases, and has therefore increased the HYDROGEN BOND INTENSITY between the fiber.
In order to increase fibroreticulate wet strength more surely, the bondedfibre fabric form for preparing is elected in this network optimization as in following method: for example with wet method separately by fibrillation artificial silk or fibrillation artificial silk and other fiber in conjunction with forming fiber web, then to the processing of spraying water of this fiber web.Be called fibroreticulate being meant herein and promptly make the fiber fiber web of the method for orientation preparation in a predetermined direction at an angle of forming it by lapping by this way.Fiber web also can be used dry process, and the processing of can spraying water.Handle for water spray, use be the routine equipment that sprays water with high pressure.Handle by water spray, fiber web forms bulk on the whole and has the bondedfibre fabric of the soft feeling of similar cloth.In addition, this bondedfibre fabric has the wet strength that is enough to its use, and when handling at water closet or back contacts with big water gaging in other, owing to tangle microfiber wherein even the fiber that loosely tangles wherein scatter in water, so they decompose in water well.
The details that water spray is handled is described below.Fiber web is placed on the transport tape of continuous running, and is exposed in the High-Pressure Water and makes that spray current thereon can be by its back side.Handle by water spray, depend on the fibroreticulate quantitative of processing, the aperture of the nozzle of use, the quantity of hole for water spraying, the fibroreticulate feeding speed (process velocity) that water spray is handled etc., the character of bondedfibre fabric will change.For example, as the effect that from following formula, derives (work done):
Effect (kW/m
2)={ 1.63 * hydraulic pressure (kgf/cm
2Or Pa) * water velocity (m
3/ min) }/process velocity (m/min),
Single treatment to a fibroreticulate surface is 0.04-0.5 (kW/m
2) time, most preferred bondedfibre fabric can be handled fiber web once or repeat 2-6 time and prepare by water spray.At this moment, if owing to repeat to spray water to handle and make the too severe of fibre matting too much, the decomposability of the bondedfibre fabric that obtains in water will reduce, and, if the effect of single treatment greater than above-mentioned scope, fiber web may break.On the other hand, if the effect of single treatment less than above-mentioned scope, the fiber web of processing may not have bulk to desirable degree.Can be to the processing of spraying water of fibroreticulate one or both sides.If processing conditions has carried out different changes, even effect can not obtain most preferred bondedfibre fabric yet in preferable range.
For simplified process method, it is desirable to after fiber web forms, directly spray water and handle and do not carry out drying.Yet, the fiber web processing of also can after carrying out primary drying, spraying water again.Multiply by the root of the product that longitudinal strength (MD) obtains according to transverse strength (CD), the present invention contains the fracture strength that the water of water can decompose under the fiber web hygrometric state and preferably is at least 110g/25mm.Fracture strength under the hygrometric state (being meant wet strength herein) is meant the tensile strength (gf) when rupturing under the fiber web hygrometric state.For according to when fracture tensile strength obtain wet strength, the fiber web of the long 150mm of wide 25mm is under water, infiltrate 2.5 times of water thus to fiber net quality, and stretch moistening like this fiber web up to fracture with the Tensilon test machine, wherein chuck (chuck) distance is 100mm, rate of extension 100mm/min.
Yet, only be the criterion of fiber web intensity according to the data of said method test, and fiber web of the present invention just can cosily be used for the wiping purposes as long as its intensity is substantially equal to the wet strength of said method test.More preferably, fibroreticulate wet strength is at least 130g/25mm.
On the other hand, what also need is, even fiber web also has under dry state and is enough to it and uses needed high strength, therefore, multiply by the root of the product that longitudinal strength (MD) obtains according to transverse strength (CD), and fibroreticulate dry strength preferably is at least 350g/25mm.
Water of the present invention can decompose that resolution also preferably is no more than 300 seconds in the fiber web water, more preferably no more than 200 seconds, further preferably is no more than 150 seconds, is most preferably not exceeding 100 seconds.Resolution is meant that according to the test of JIS P-4501 method of testing toilet paper is easy to the degree of degrading in water in the water.The overview of paper degraded method of testing is described below.The water of the wide 10cm of the long 10cm of the present invention can be decomposed fiber web to be put into 300-ml beaker that the 300ml deionized water is housed and stirs with agitator.The rotary speed of agitator is 600rpm.Macroscopic observation is scattered in the state of the specimen in the water, and tests the time that specimen is disperseed finely.
Yet, data according to said method test only are the criterions that water can decompose fibre sheet, and as long as the data that the resolution of fiber web of the present invention in water is substantially equal to test in the said method just can be without a doubt in water closet etc., handle.
In order to make water of the present invention can decompose fibroreticulate resolution and wet strength in above-mentioned preferable range, can change the type of the fiber of forming this net, the ratio of fiber, net quantitatively and the condition handled of net water spray.For example, use the long fibrillation artificial silk of fibrillation, perhaps use the fibrillation artificial silk (just indicating the numerical value of beating degree to increase) that does not have too many making beating, reduce the quantitative of bondedfibre fabric, perhaps reduce the ratio of fibrillation artificial silk, perhaps reduce the machining energy that water spray is handled, resolution increases in the fiber web water that obtains thus, and wet strength increases.On the other hand, use is through the fibrillation artificial silk (just indicating the numerical value of beating degree to reduce) of too many making beating, and the ratio increase of fibrillation artificial silk or the quantitative increase of bondedfibre fabric are to obtain better effect.
Even do not contain adhesive, water of the present invention can decompose and also has high resolution and high wet strength in the fiber web water.Yet, in order further to improve the wet strength of net, can in net, add can binder fiber water-soluble or water-soluble bloated adhesive.This adhesive comprises, for example carboxymethyl cellulose; Alkylcellulose is methylcellulose, ethyl cellulose, benzylcellulose etc. for example; Polyvinyl alcohol; The modified polyvinylalcohol that contains predetermined quantity sulfonic group or carboxyl; Deng.The amount that adds the adhesive in the networking can be very little.For example, organize fiber into the net in 100g, can only add the approximately adhesive of 2g in net, Wang wet strength can significantly increase thus.Because solvable or swellable in the water, this adhesive dissolve or swelling in water when contacting with big water gaging.In order to add water-soluble binder in bondedfibre fabric, the method that can adopt is to adopt silk screen with the coating process of adhesive coated to the bondedfibre fabric.On the other hand, can when fiber web is with the papermaking process preparation, water swellable adhesive be joined in the fiber web.
When adhesive being joined in the fiber web of the present invention, can add a kind of electrolyte for example water-soluble inorganic salt or organic salt simultaneously, fibroreticulate thus wet strength can increase greatly.Inorganic salts comprise, for example sodium sulphate, potassium sulfate, zinc sulfate, zinc nitrate, potassium alum, sodium chloride, aluminum sulfate, magnesium sulfate, potassium chloride, sodium carbonate, sodium bicarbonate, ammonium carbonate etc.; Organic salt comprises, for example pyrrolidone sodium carboxylate, natrium citricum, potassium citrate, sodium tartrate, potassium tartrate, sodium lactate, sodium succinate, calcium pantothenate, calcium lactate, NaLS etc.When alkylcellulose is used as adhesive, preferably mix use with monovalent salt.When modification or unmodified polyethylene alcohol during, preferably mix use with monovalent salt as adhesive.
In addition, when alkylcellulose when the adhesive, for further improve water can decompose fibroreticulate intensity can be to wherein adding following any compound.This auxiliary compounds comprises, the copolymer of for example polymerisable anhydride monomers and other comonomer, and (methyl) acrylic acid-maleic acid resin for example, (methyl) acrylic acid-fumaric resin, etc.Preferred copolymer is to be saponified into the water miscible copolymer that partly contains the carboxylic acid sodium part with NaOH etc.Owing to also increase fibroreticulate intensity, therefore in net, add amino acid derivativges for example trimethylglycine etc. also be desirable.
In order to ensure resolution required in the water and above-mentioned required wet strength, it can be sandwich construction that water of the present invention can decompose fiber web.For example, will contain fibrillation artificial silk but place without first fiber web that water spray is handled and to obtain a kind of water under second fiber web that contains fibrillation artificial silk and handle through water spray and can decompose fiber web.Containing the fiber web of double-layer structure may be more bulk and may increase wet strength under the situation that does not reduce decomposability in the water.One deck first fiber web can interlayer between two-layer second fiber web, obtain three layer by layer the water of laminated structure can decompose fiber web.
Under the situation that does not influence advantage of the present invention, water of the present invention can decompose fiber web and be determined on a case-by-case basis and can contain any other material.For example, can contain for example ethanol, many alcohol glycerine etc. for example of surfactant, microbicide, preservative agent, deodorant, hygroscopic agent, alcohol.
Because have high decomposability and high wet strength in the water, water of the present invention can decompose fiber web and be applicable to that human body skin comprises the hygenic towelette in human body shelter, or be used for the cleaning foil of toilet etc.In order to ensure the wiping and the clean-up performance of these purposes, this net can contain water, surfactant, alcohol, glycerine etc. in advance.Can decompose fiber web at water of the present invention and pack simultaneously when putting goods on the market with liquid cleaner etc. is moistening in advance, it should pack and put goods on the market so that make it can be dry.On the other hand, water can decompose fiber web and sell under can be dry.Having bought dry water can decompose fibroreticulate user water or liquid chemical are moistening before use.
Because water of the present invention can decompose fiber web and has high dry strength, being different from conventional water, can to decompose fibroreticulate be wherein not add any adhesive or electrolyte.Therefore, fiber web of the present invention is used for skin as safe as a housely, and is applicable to that different water can decompose the composition fiber web of absorbing products, for example sanitary napkin, lines of underpants, sanitary tampons, disposable diaper etc.For example, when fiber web is a porous, can decompose the top layer fiber web of absorbing products as water.When fiber web and any other mixed with fibers, be applicable to absorbed layer, bed course, backing layer etc.
Fiber web of the present invention can be embossing.When adding after the low amounts of water under heating embossing in fiber web, the HYDROGEN BOND INTENSITY of (if contain other fiber, between fibrillation rayon fiber and other fiber) will increase between the fiber of fibrillation artificial silk.Therefore, the fiber web after the embossing will have high dry strength.This fiber web more is applicable to be made wiping cloth or is applicable to the composition fiber web of making to form absorbing products.
Embodiment
The present invention will be explained in more detail with reference to the following examples, yet, be not in order to limit scope of the present invention.
Embodiment A
With the rayon fiber (coming from Japanese Acordis) of the long 4mm multiple fibrillation artificial silk of the different beating degrees shown in the table 2 below the fibrillation preparation in blender.With this fibrillation artificial silk and routine fibrillation artificial silk (1.7 dtexs (1.5 dawn) not, the long 5mm of fiber) and bleached softwood kraft slurry (NBKP) (Canadian Standard Freeness CSF=610cc) mixes and makes fiber web according to the wet type papermaking process that uses cylinder mould machine.In this step, the mixed proportion difference of fiber among each embodiment.The fibre length of fibrillation artificial silk is meant the making beating length of artificial silk before in the table.
In the time of not through super-dry but also on plastic wire, the fiber web that obtains is placed on the transport tape of operation.When the speed shown in the table 2 is moved, still under the condition shown in the table 2 to fiber web processings of spraying water, make its fibre matting of composition thus.The equipment of spraying water with high pressure that is used to handle is equipped with 2000 nozzle/rice, and the aperture of each nozzle is 95 microns, and adjacent nozzle is spaced apart 0.5mm, and the water spray pressure that is used on the fiber web is 40kgf/cm
2, as shown in table 2.Under this condition, on a fibroreticulate surface, use water spray to make it to see through the back side.Repeat water jet treatment processes under the same conditions again one time.Then, fiber web dry water that obtains bondedfibre fabric on the Yang Keshi drying cylinder can decompose fiber web.Then, this net is moistening with 250g water in every 100g bondedfibre fabric.According to said method, the water that test obtains like this can decompose resolution and wet strength in the fibroreticulate water.
The test of decomposability is based on the JIS P-4501 method of testing that shows the toilet paper resolution in the water.Say exactly, the water of the wide 10cm of long 10cm can be decomposed fibroreticulate sample put into the 300-ml beaker that the 300ml deionized water is housed, and stir with agitator.The mixing speed of agitator is 600rpm.The state that is scattered in the specimen in the water is that macroscopic observable arrives, and tests the time (data in the face table are shown with stopwatch as follows) that specimen is disperseed finely.
According to the method for testing test wet strength of formulating among the JIS P-8135.Briefly, use the Tensilon test machine, test vertical (MD) and horizontal (CD) of the fiber web print of the long 150mm of wide 25mm, wherein the chuck distance is 100mm, and rate of extension is 100mm/min.Ce Shi fracture strength (gf) is represented its wet strength (data are to represent with g/25mm in the face table as follows) like this.Obtain the root of MD and CD product, the numerical value of its expression print wet strength.
Except not using fibrillation artificial silk, use the method identical to prepare fiber web in comparative examples 1 and the comparative examples 2 with embodiment A.
Table 2
| Embodiment A-1 | Embodiment A-2 | Embodiment A-3 | Comparative examples 1 | Comparative examples 2 | |||
| Fibrillation artificial silk (1.5 dawn) | Fibre length | ????4mm | ????4mm | ????4mm | ????4mm | ????4mm | |
| Beating degree | ????600cc | ????600cc | ????600cc | ????600cc | ????600cc | ||
| Mixed proportion | Fibrillation artificial silk | ????5％ | ????30％ | ????70％ | ????0％ | ????0％ | |
| Artificial silk (1.5 the dawn * 5mm) | ????30％ | ????30％ | ????30％ | ????30％ | ????70％ | ||
| NBKP (beating degree, 610cc) | ????65％ | ????40％ | ????0％ | ????70％ | ????30％ | ||
| The condition that water spray is handled | Hydraulic pressure | ????40kgf/cm 2 | ????40kgf/cm 2 | ????40kgf/cm 2 | ????40kgf/cm 2 | ????40kgf/cm 2 | |
| Number of repetition | ????2 | ????2 | ????2 | ????2 | ????2 | ||
| Speed | ????50m/min | ????50m/min | ????50m/min | ????50m/min | ????50m/min | ||
| Quantitative (g/m 2) | ????45.0 | ????45.0 | ????45.0 | ????45.0 | ????45.0 | ||
| Wet strength (g/25mm) | ????MD | ????136 | ????163 | ????235 | ????95 | ????130 | |
| ????CD | ????130 | ????149 | ????208 | ????87 | ????115 | ||
| ??√(CD×MD) | ????133 | ????156 | ????221 | ????91 | ????122 | ||
| Decomposability in the water (second) | ????95 | ????85 | ????105 | ????95 | ????180 | ||
As can be seen from Table 2, compare, sneak into that water can decompose that fibroreticulate fibrillation artificial silk has increased the wet strength of net and than reducing decomposability in its water with the fiber web that does not contain fibrillation artificial silk.This is that in addition, when this net was put into big water gaging, the entanglement of microfiber was easy to untie and makes fiber separated from one another because the entanglement that the microfiber that fibrillation artificial silk exists produces has increased the wet strength of net.Data from A-3 should be realized that even do not contain NBKP, water can decompose fiber web and also have decomposability and high wet strength in the good water.
Embodiment B
Prepare water according to method identical in the embodiment A and can decompose fiber web.Yet, in the Embodiment B, shown in following table 3, use be different fibrillation artificial silks with different beating degrees.Test decomposability and their wet strength in the fibroreticulate water according to above-mentioned identical method.
The data rows that obtains is in table 3.
Table 3
| Embodiment B-1 | Embodiment B-2 | Embodiment B-3 | Embodiment B-4 | |||
| Fibrillation artificial silk (1.5 dawn) | Fibre length | ????4mm | ????4mm | ????4mm | ????4mm | |
| Beating degree | ????700cc | ????500cc | ????300cc | ????200cc | ||
| Mixed proportion | Fibrillation artificial silk | ????10％ | ????10％ | ????10％ | ????10％ | |
| Artificial silk (1.5 the dawn * 5mm) | ????30％ | ????30％ | ????30％ | ????30％ | ||
| NBKP (beating degree, 610cc) | ????60％ | ????60％ | ????60％ | ????60％ | ||
| The condition that water spray is handled | Hydraulic pressure | ????40kgf/cm 2 | ????40kgf/cm 2 | ????40kgf/cm 2 | ????40kgf/cm 2 | |
| Number of repetition | ????2 | ????2 | ????2 | ????2 | ||
| Speed | ????50m/min | ????50m/min | ????50m/min | ????50m/min | ||
| Quantitative (g/m 2) | ????45.0 | ????45.0 | ????45.0 | ????35.0 | ||
| Wet strength (g/25mm) | ????MD | ????145 | ????155 | ????188 | ????165 | |
| ????CD | ????135 | ????149 | ????165 | ????151 | ||
| ????√(CD×MD) | ????130 | ????152 | ????176 | ????158 | ||
| Decomposability in the water (second) | ????75 | ????82 | ????96 | ????91 | ||
Embodiment C
Prepare water according to the method in the embodiment A and can decompose fiber web.Yet, in the Embodiment B, shown in following table 4, use be that the artificial silk not of the same race with different fibre lengths prepares fibrillation artificial silk.According to decomposability and their wet strength in the water of above-mentioned identical method test non-woven fabric fiber network.
According to Embodiment C in identical method prepare the control sample of bondedfibre fabric.Yet, be that the artificial silk of length 12mm prepares fibrillation artificial silk as used herein.This is tested according to above-mentioned identical method.
The data rows that obtains is in table 4.
Table 4
| Embodiment C-1 | Embodiment C-2 | Embodiment C-3 | Embodiment C-4 | Comparative examples | |||
| Fibrillation artificial silk (1.5 dawn) | Fibre length | ????4mm | ????4mm | ????4mm | ????4mm | ????4mm | |
| Beating degree | ????600cc | ????600cc | ????600cc | ????600cc | ????600cc | ||
| Mixed proportion | Fibrillation artificial silk | ????20％ | ????20％ | ????20％ | ????20％ | ????20％ | |
| Artificial silk (1.5 the dawn * 5mm) | ????30％ | ????30％ | ????30％ | ????30％ | ????30％ | ||
| NBKP (beating degree, 610cc) | ????50％ | ????50％ | ????50％ | ????50％ | ????50％ | ||
| The condition that water spray is handled | Hydraulic pressure | ????40kgf/cm 2 | ????40kgf/cm 2 | ????40kgf/cm 2 | ????40kgf/cm 2 | ????40kgf/cm 2 | |
| Number of repetition | ????2 | ????2 | ????2 | ????2 | ????2 | ||
| Speed | ????50m/min | ????50m/min | ????50m/min | ????50m/min | ????50m/min | ||
| Quantitative (g/m 2) | ????45.0 | ????45.0 | ????45.0 | ????45.0 | ????45.0 | ||
| Wet strength (g/25mm) | ????MD | ????145 | ????188 | ????218 | ????274 | ????309 | |
| ????CD | ????135 | ????171 | ????193 | ????241 | ????289 | ||
| ????√(CD×MD) | ????140 | ????179 | ????205 | ????257 | ????299 | ||
| Decomposability in the water (second) | ????60 | ????71 | ????98 | ????148 | ????600＜ | ||
From the data of control sample, should be realized that,, contain fibre length 12mm, surpass decomposability extreme difference in the fibroreticulate water of fibrillation artificial silk of artificial silk preparation of 10mm in other words because the entanglement of fiber is too severe in the net.In contrast, decomposability is also fine in the fibroreticulate water of the Embodiment C-4 of the artificial silk of use length 10mm.In the long Embodiment C-4 of the fibrillation of the fibrillation artificial silk that uses, as long as the fibrillation artificial silk that uses does not have the ratio of sneaking into of too many making beating (so that it has the numerical value of big indication beating degree) and preparation net to reduce, fiber web just can have decomposability in the intensity of fine balance and the water.
Embodiment D
According to embodiment A in identical method prepare water and can decompose fiber web.Yet among the embodiment D, in preparation fibrillation artificial silk, the fibre length of the artificial silk that uses changes by table 5 as the ratio of sneaking into of the fiber of 3mm and use.In addition, at this, the hydraulic pressure that water spray is handled is pressed table 5 and is changed.Test decomposability and their wet strength in the fibroreticulate water according to above-mentioned identical method.
The data rows that obtains is in table 5.
Table 5
| Embodiment D-1 | Embodiment D-2 | Embodiment D-3 | Embodiment D-4 | Embodiment D-5 | Embodiment D-6 | Embodiment D-7 | |||
| Fibrillation artificial silk (1.5 dawn) | Fibre length | ????3mm | ????3mm | ????3mm | ????3mm | ????3mm | ????3mm | ????3mm | |
| Beating degree | ????400cc | ????400cc | ????400cc | ????400cc | ????400cc | ????400cc | ????400cc | ||
| Mixed proportion | Fibrillation artificial silk | ????20％ | ????15％ | ????15％ | ????10％ | ????15％ | ????10％ | ????5％ | |
| Artificial silk (1.5 the dawn * 5mm) | ????20％ | ????25％ | ????20％ | ????25％ | ????15％ | ????20％ | ????25％ | ||
| NBKP (beating degree, 610cc) | ????60％ | ????60％ | ????65％ | ????65％ | ????70％ | ????70％ | ????70％ | ||
| The condition that water spray is handled | Hydraulic pressure | ??30kgf/cm 2 | ????30kgf/cm 2 | ????30kgf/cm 2 | ????30kgf/cm 2 | ????30kgf/cm 2 | ????30kgf/cm 2 | ???30kgf/cm 2 | |
| Number of repetition | ????2 | ????2 | ????2 | ????2 | ????2 | ????2 | ????2 | ||
| Speed | ??30m/min | ????30m/min | ????30m/min | ????30m/min | ????30m/min | ????30m/min | ????30m/min | ||
| Quantitative (g/m 2) | ??50.0 | ????50.0 | ????50.0 | ????50.0 | ????50.0 | ????50.0 | ????50.0 | ||
| Wet strength (g/25mm) | ????MD | ??210 | ????198 | ????172 | ????161 | ????168 | ????151 | ????140 | |
| ????CD | ??190 | ????171 | ????165 | ????155 | ????150 | ????146 | ????138 | ||
| ??√(CD×MD) | ??200 | ????184 | ????168 | ????158 | ????159 | ????148 | ????139 | ||
| Decomposability in the water (second) | ??110 | ????96 | ????88 | ????82 | ????90 | ????78 | ????63 | ||
Embodiment E
Prepare water according to method identical in the embodiment A and can decompose fiber web.This net is by 10% quality fibrillation artificial silk (1.7 dtexs, the fibre length of initial artificial silk are 5mm, beating degree 600cc), the NBKP that uses in 30% quality artificial silk (1.1 dtexs, fibre length are 5mm) and the 60% quality embodiment A.For the fiber web of embodiment E-1-E-4, fibrillation artificial silk is to use difference making beating machinery to prepare by making beating original fibers under the hygrometric state.At 30kgf/cm
2Under the process velocity 30m/min, water spray is handled and is carried out twice.According to decomposability in fibroreticulate intensity and the water under above-mentioned same procedure test hygrometric state and the dry state.In addition, obtain extension at break according to following method.
Extension at break is to test according to the method for testing of the tensile strength of formulating paper and cardboard among the JIS P-8113.Specifically, extension at break is expressed as follows:
Extension at break (km)=[tensile strength (kgf)] * [(the sample width, 25m) * (specimen quantitatively, g/m
2)]
In the comparative examples, to initial artificial silk (1.7 dtexs identical with sample among embodiment E-1-E-4, fibre length is 5mm) carry out free beating, and use this free beating artificial silk to replace the wet type making beating fibrillation artificial silk among the embodiment to prepare the contrast bondedfibre fabric.
The data rows that obtains is in table 6.
Table 6
| Comparative examples 1 | Comparative examples 2 | ????E-1 | ????E-2 | ????E-3 | ????E?4 | ||||
| The method of making beating artificial silk | Free beating | The wet type making beating | |||||||
| Beater | Beater | Blender | Pulper | Refiner | Refiner | ||||
| Quantitatively | ????g/m 2 | ????45.7 | ?????40.9 | ????41.3 | ????43.1 | ????39.3 | ????42.1 | ||
| Thickness | ????mm | ????0.45 | ?????0.45 | ????0.42 | ????0.45 | ????0.415 | ????0.435 | ||
| Dry state | Intensity | MD | ????g/25mm | ????1299 | ?????969 | ????1529 | ????1461 | ????1407 | ????1377 |
| Extension at break | ????mm | ????1137 | ?????948 | ????1481 | ????1356 | ????1432 | ????1308 | ||
| Intensity | CD | ????5/2mm | ????915 | ?????778 | ????1199 | ????1167 | ????1018 | ????1148 | |
| Continue and split elongation | ????mm | ????801 | ?????761 | ????1161 | ????1083 | ????1036 | ????1091 | ||
| Decomposability in the water | Second | ????85 | ?????69 | ????78 | ????83 | ????62 | ????93 | ||
| Hygrometric state | Intensity | MD | ????g/25mm | ????126 | ????118 | ????164 | ????143 | ????122 | ????148 |
| Extension at break | ????mm | ????110 | ????115 | ????159 | ????133 | ????124 | ????141 | ||
| Intensity | CD | ????g/25mm | ????129 | ????110 | ????157 | ????156 | ????150 | ????160 | |
| Extension at break | ????mm | ????113 | ????108 | ????152 | ????145 | ????153 | ????152 | ||
| Decomposability in the water | Second | ????88 | ????68 | ????118 | ????120 | ????95 | ????160 | ||
From table 6, should be realized that, although in the water in the water of resolution and comparative examples resolution significantly different, but the water that is to use hygrometric state making beating fibrillation artificial silk in the embodiment of the invention rather than the free beating artificial silk in the comparative examples to obtain having higher wet strength can decompose fiber web, especially the CD direction.
Embodiment F
Prepare water according to method identical in the embodiment A and can decompose fiber web.Yet, in the embodiment F, use be the original fibers not of the same race of different fibre lengths, and according to the mixed proportion of the fibrillation artificial silk that change to use shown in the table 7.At 30kgf/cm
2Under the process velocity 30m/min, water spray is handled and is carried out twice.According to decomposability in fibroreticulate intensity and the water under above-mentioned same procedure test hygrometric state and the dry state.In addition, according to following their abrasion resistance of method test.
Wear-resistant method of testing test abrasion resistance according to the cardboard of formulating among the JIS P-8136.Yet, in this test, a dermatine is bonded on the arc surface of friction assembly A, simultaneously sample is bonded on the sliding platform, and sample is to rub under the load that applies the 500g on it with the platform toward polyslip.
The data rows that obtains is in table 7.
Table 7
| ????F-1 | ????F-2 | ????F-3 | ????F-4 | ????F-5 | ????F-6 | |||
| NBKP (making beating) | ????60％ | ????20％ | ????60％ | ????20％ | ????60％ | ????20％ | ||
| Fibrillation artificial silk (1.7 dtexs, beating degree 400cc) | ????3mm | ????40％ | ????80％ | |||||
| ????5mm | ????40％ | ????80％ | ||||||
| ????7mm | ????40％ | ????80％ | ||||||
| Artificial silk (1.1 dtexs * 5mm) | ||||||||
| Hydraulic pressure | Kgf, twice | ????30 | ????30 | ????30 | ????30 | ????30 | ????30 | |
| Water velocity | ????m/min | ????30 | ????30 | ????30 | ????30 | ????30 | ????30 | |
| Quantitatively | ????g/m 2 | ????45.1 | ????39.8 | ????42.7 | ????42.7 | ????44.4 | ????44.2 | |
| Thickness | ????mm | ????0.456 | ????0.322 | ????0.418 | ????0.322 | ????0.391 | ????0.341 | |
| Dry strength | MD | ????5/25mm | ????1085 | ????1366 | ????1343 | ????1540 | ????1436 | ????1655 |
| Dry strength | CD | ????g/25mm | ????951 | ????1419 | ????1314 | ????1604 | ????1387 | ????1689 |
| Wet strength | MD | ????g/2mm | ????142 | ????341 | ????307 | ????565 | ????438 | ????678 |
| Wet strength | CD | ????g/25mm | ????128 | ????275 | ????272 | ????493 | ????312 | ????686 |
| Decomposability in the dry fibrous web water | Second | ????59 | ????62 | ????107 | ????110 | ????＞300 | ????＞300 | |
| Decomposability in the wet fiber net water | Second | ????64 | ????64 | ????123 | ????168 | ????＞300 | ????＞300 | |
| Anti-degree of wasting | MD | The weight number of times | ????12 | ????- | ????19 | ?????- | ????24 | ?????- |
| Abrasion resistance | CD | Number of repetition | ????12 | ????- | ????20 | ????- | ????10 | ?????- |
Should be realized that from F-1 and F-2 the original fibers length that promptly is used in preparation fibrillation artificial silk wherein is 3mm, bondedfibre fabric also has decomposability in high relatively intensity and their water.This bondedfibre fabric is keeping can having higher intensity in the decomposability in the good water when the content of wherein fibrillation artificial silk is bigger.On the other hand, shown in F-5 and F-6, when the original fibers length that is used to prepare fibrillation artificial silk wherein is 7mm, be difficult to make the fiber web of bondedfibre fabric to have decomposability and wet strength in the water of fine balance, decomposability has the reduction of some degree in the fibroreticulate water of result.Therefore, the fiber web that obtains of the fibrillation artificial silk that uses original fibers length to be no more than 6mm has decomposability and wet strength in the water of fine balance.Yet, for original fibers length is 7mm or longer fibrillation artificial silk, as long as reduce the use amount of fibrillation artificial silk wherein and reduce fibroreticulate quantitatively, the fiber web that contains it so just can have decomposability and wet strength in the water of fine balance.
Embodiment G
According to embodiment A in identical method prepare water and can decompose fiber web.Yet, among the embodiment G, use be the fibrillation artificial silk not of the same race with different beating degrees as shown in table 8.At 30kgf/cm
2Under the process velocity 30m/min, water spray is handled and is carried out twice.According to above-mentioned same procedure non-woven fabric fiber network is tested.
In addition, test fibroreticulate KES bending strength.In the crooked WARP of KES (B/2HB), the crooked WEFT (B/2HB) of KES, KES surface WARP (MIU/MMD), and KES surface WEFT (MIU/MMD), WEFT and CD are identical with MD is identical for WARP.Numerical value B represents bending rigidity, and the fiber web pliability that the B value is big more is poor more.(numerical value B g.cm
2/ cm represents).Numerical value 2HB represents crooked the hysteresis, and the big more difficult more recovery of fiber web of 2HB value.(numerical value 2HB represents with g.cm/cm).MIU represents coefficient of friction, and the MIU value is big more, and the slickness of web surface is poor more.MMD represents the coefficient of friction fluctuation, and the MMD value is big more, and the smoothness of web surface is poor more.
The data rows that obtains is in table 8.
Table 8
| ????G-1 | ????G-2 | ????G-3 | ????G-4 | |||
| NBKP (making beating) | ????50％ | ????50％ | ????50％ | ????50％ | ||
| Fibrillation artificial silk (1.7 dtexs * 5mm) | Beating degree 600cc | ????10％ | ||||
| Beating degree 400cc | ????10％ | |||||
| Beating degree 200cc | ????10％ | |||||
| Beating degree 100cc | ????10％ | |||||
| Artificial silk (1.7 dtexs * 5mm) | ????40％ | ????40％ | ????40％ | ????40％ | ||
| Quantitatively | ????g/m 2 | ????42.9 | ????42.1 | ????43.4 | ????43.8 | |
| Definitely in quantitatively | ????g/m 2 | ????41.1 | ????40.0 | ????40.3 | ????40.3 | |
| Thickness | ????mm | ????0.438 | ????0.390 | ????0.402 | ????0.377 | |
| Dry strength | MD | ????g/25mm | ????974 | ????1146 | ????1308 | ????1380 |
| Dry strength | CD | ????g/25mm | ????870 | ????1011 | ????1128 | ????1136 |
| Wet strength | MD | ????g/25mm | ????121 | ????159 | ????194 | ????222 |
| Wet strength | CD | ????g/25mm | ????118 | ????151 | ????198 | ????220 |
| Absolute wet strength | ????119.49 | ????154.95 | ????195.99 | ????221.00 | ||
| Decomposability in the dry fibrous web water | Second | ????76 | ????71 | ????66 | ????79 | |
| Decomposability in the wet fiber net water | Second | ????93 | ????97 | ????87 | ????81 | |
| The crooked WARP of KES | ?B | ????g·cm 2/cm | ????0.374 | ????0.440 | ????0.502 | ????0.503 |
| ?2HB | ????g·cm 2/cm | ????0.676 | ????1.074 | ????1.074 | ????1.109 | |
| The crooked WEFT of KES | ?B | ????g·cm 2/cm | ????0.257 | ????0.300 | ????0.244 | ????0.294 |
| ?2HB | ????g·cm 2/cm | ????0.405 | ????0.354 | ????0.253 | ????0.489 | |
| KES surface WARP | ?MTU | ????0.140 | ????0.195 | ????0.154 | ????0.153 | |
| ?MMD | ????0.125 | ????0.131 | ????0.130 | ????0.125 | ||
| KES surface WEFT | ?MTU | ????0.157 | ????0.166 | ????0.203 | ????0.148 | |
| ?MMD | ????1.020 | ????0.695 | ????0.907 | ????1.075 | ||
Data from table 8 should be realized that the fiber web for preparing among all embodiment all has decomposability and high wet strength in the good water.The fiber web among G-4 and the G-5 particularly.
The data of decomposability are with respect to the different beating degrees mappings of the fibrillation artificial silk that uses, as shown in figure 11 in the absolute wet strength of the wet sample that provides in the table 8 and the water.As can be seen from Figure 11, when the artificial silk that is used to prepare fibrillation artificial silk through many more making beating (just, the numerical value of the fibrillation artificial silk of use indication beating degree is more little), the wet strength of sample is high more.Yet with reference to resolution in the water of the sample for preparing among the present invention as can be seen, the making beating degree of the fibrillation artificial silk of use is high more, the indication beating degree numerical value less than 400cc, its wet strength big more but in the water decomposability low more.Therefore, should be realized that although decomposability and these two kinds of performances of wet strength seem it is conflicting in the water, water of the present invention can decompose the advantage that fiber web has increases decomposability and wet strength in the water simultaneously.
Embodiment H
Prepare water according to the method identical and can decompose fiber web with embodiment G, and by above-mentioned identical their performance of method test.
In addition, prepared the control fiber net among the comparative examples 1-3.What specifically, use in the comparative examples 1 be beating degree as the artificial silk of 740cc and fiber web is method preparation according to embodiment G; Do not use fibrillation artificial silk in the comparative examples 2 and 3.In comparative examples 2 and 3, fiber web is at pressure 44kgf/cm
2Process velocity 15m/min water spray processing down carries out twice.The control fiber net has also carried out performance test.
The data rows that obtains in the following Table 9.
Table 9
| Comparative examples 1 | ????H-1 | ????H-2 | ????H-3 | ????H-4 | Comparative examples 2 | Comparative examples 3 | |||
| NBKP (making beating) | ????20％ | ????20％ | ????20％ | ????20％ | ????20％ | ????60％ | ????30％ | ||
| Fibrillation artificial silk (1.7 dtexs * 5mm) | Beating degree 740cc | ????80％ | |||||||
| Beating degree 600cc | ????80％ | ||||||||
| Beating degree 400cc | ????80％ | ||||||||
| Beating degree 200cc | ????80％ | ||||||||
| Beating degree 100cc | ????80％ | ||||||||
| Artificial silk (1.7 dtexs * 5mm) | ????40％ | ????70％ | |||||||
| Quantitatively | g/m 2 | ????42.8 | ????42.5 | ????44.4 | ????42.0 | ????40.5 | ????43.4 | ????46.5 | |
| Thickness | mm | ????0.477 | ????0.372 | ????0.387 | ????0.322 | ????0.287 | ????0.556 | ????0.661 | |
| Dry strength | MD | g/25mm | ????377 | ????882 | ????1493 | ????1624 | ????1611 | ????957 | ????515 |
| Dry strength | CD | g/25mm | ????370 | ????1061 | ????1500 | ????1883 | ????1603 | ????672 | ????446 |
| Wet strength | MD | g/25mm | ????157 | ????176 | ????508 | ????540 | ????612 | ????139 | ????154 |
| Wet strength | CD | g/25mm | ????66 | ????215 | ????509 | ????491 | ????487 | ????101 | ????133 |
| Absolute wet strength | g/25mm | ????102 | ????195 | ????508 | ????515 | ????546 | ????118 | ????143 | |
| Decomposability in the water of dry fibrous web | Second | ????＞300 | ????＞300 | ????＞300 | ????104 | ????107 | ????122 | ????144 | |
| Decomposability in the water of wet fiber net | Second | ????＞300 | ????＞300 | ????＞300 | ????175 | ????141 | ????128 | ????204 | |
| The crooked WARP of KES | ?B | g·cm 2/cm | ????0.170 | ????0.423 | ????0.702 | ????0.463 | ????0.406 | ?????- | ????- |
| ?2HB | g·cm 2/cm | ????0.167 | ????0.762 | ????1.372 | ????0.817 | ????0.608 | ?????- | ????- | |
| The crooked WEFT of KES | ?B | g·cm 2/cm | ????0.112 | ????0.350 | ????0.326 | ????0.354 | ????0.309 | ?????- | ????- |
| ?2HB | g·cm 2/cm | ????0.0966 | ????0.447 | ????0.578 | ????0.579 | ????0.393 | ?????- | ????- | |
| KES surface WARP | ?MTU | ????0.156 | ????0.146 | ????0.179 | ????0.164 | ????0.151 | ?????- | ????- | |
| ?MMD | ????0.0115 | ????0.0151 | ????0.0134 | ????0.0146 | ????0.0113 | ?????- | ????- | ||
| KES surface WEFT | ?MTU | ????0.160 | ????0.170 | ????0.158 | ????0.154 | ????0.158 | ?????- | ????- | |
| ?MMD | ????0.0765 | ????0.0997 | ????0.121 | ????0.0992 | ????0.0611 | ?????- | ????- | ||
| Abrasion resistance | ?MD | Number of repetition | ????11 | ????7 | ????19 | ????28 | ????14 | ????8 | ????12 |
| Abrasion resistance | ?CD | Number of repetition | ????11 | ????7 | ????9 | ????16 | ????13 | ????7 | ????9 |
Should be realized that from table 9 contain the fiber web of the fibrillation artificial silk of many making beating degree not too high (numerical value of indication beating degree is big) more, resolution is low more in the water.Among the embodiment H, sample H-3 and H-4 have decomposability and wet strength in the water of fine balance.Therefore, when will (when for example, at least 80% quality) fibrillation artificial silk is used for fiber web, requiring to use beating degree to be no more than the fibrillation artificial silk of 200cc in a large number more.
Example I
Prepare water according to the method identical and can decompose fiber web with embodiment G.In example I, as shown in table 10 below, change the amount that adds the fibrillation artificial silk in the fiber web.In addition, in the example I, in fiber web, do not add artificial silk (not fibrillation artificial silk).Performance according to above-mentioned identical method test non-woven fabric fiber network.
The control fiber net (comparative examples) that contains 3% quality fibrillation artificial silk according to the method preparation identical with embodiment G.
The data rows that obtains is in table 10.
Table 10
| Comparative examples | ????I-1 | ????I-2 | ????I-3 | ????I-4 | ????I-5 | |||
| NBKP (making beating) | ????97％ | ????95％ | ????93％ | ????10％ | ????5％ | ????0％ | ||
| Fibrillation artificial silk (1.7 dtexs * 5mm; Beating degree 200cc) | ????3％ | ????5％ | ????7％ | ????90％ | ????95％ | ????100％ | ||
| Quantitatively | g/m 2 | ????42.4 | ????41.9 | ????42.6 | ????45.5 | ????44.1 | ????43.0 | |
| Thickness | mm | ????0.512 | ????0.490 | ????0.473 | ????0.392 | ????0.396 | ????0.382 | |
| Dry strength | MD | g/25mm | ????1147 | ????1172 | ????1316 | ????1932 | ????1990 | ????2185 |
| Dry strength | CD | g/25mm | ????957 | ????878 | ????1029 | ????1656 | ????1631 | ????1697 |
| Wet strength | MD | g/25mm | ????67 | ????84 | ????97 | ????590 | ????617 | ????663 |
| Wet strength | CD | ?g/25mm | ????61 | ????81 | ????105 | ????579 | ????568 | ????627 |
| Decomposability in the dry fibrous web water | Second | ????69 | ????66 | ????79 | ????71 | ????73 | ????57 | |
| Decomposability in the wet fiber net water | Second | ????67 | ????74 | ????98 | ????84 | ????80 | ????66 | |
As shown in table 10, contain at least 5% quality, also some degree ground is satisfactory but the fiber web of preferred at least 7% quality fibrillation artificial silk has in the good water decomposability and wet strength.In addition, can prove, only contain fibrillation artificial silk but do not contain not that the non-woven fabric fiber network of fibrillation artificial silk has decomposability and quite high wet strength in the quite high water from the data that obtain.Yet, as can be seen, if the addition of fibrillation artificial silk is too little, 3% quality for example, fibroreticulate wet strength is quite low.
Embodiment J
Prepare water according to the method identical and can decompose fiber web with embodiment G.Yet in embodiment J, change as shown in table 11 below adds the fineness of the fibrillation artificial silk in the fiber web.Performance according to above-mentioned identical method test non-woven fabric fiber network.In the test, n=3 (number of specimen).
The data rows that obtains is in table 11.
Table 11
| ????J-1 | ????J-2 | |||
| NBKP (making beating) | ????20％ | ????20％ | ||
| Fibrillation artificial silk (beating degree, 200cc) | 1.4 dtex | ????80％ | ||
| 1.7 dtex | ????80％ | |||
| Quantitatively | ????41.6 | ????45 | ||
| Thickness | ????0.36 | ????0.37 | ||
| Dry strength | MD | ????2064 | ????1762 | |
| ????2019 | ????1586 | |||
| ????2156 | ????1978 | |||
| ?AVE | ????2080 | ????1775 | ||
| Standard deviation | ????50.9 | ????135.1 | ||
| Extension at break (m) | ????2000 | ????1577 | ||
| ??CD | ????1743 | ????1809 | ||
| ????1663 | ????1696 | |||
| ????1649 | ????1761 | |||
| ?AVE | ????1685 | ????1755 | ||
| Standard deviation | ????38.7 | ????39.6 | ||
| Extension at break (m) | ????1620 | ????1560 | ||
| Wet strength | MD | ????733 | ????628 | |
| ????607 | ????527 | |||
| ????578 | ????644 | |||
| ?AVE | ????639 | ????600 | ||
| Standard deviation | ????62.4 | ????48.4 | ||
| Extension at break (m) | ????614 | ????533 | ||
| ??CD | ????629 | ????609 | ||
| ????649 | ????521 | |||
| ????514 | ????586 | |||
| ?AVE | ????597 | ????572 | ||
| Standard deviation | ????55.6 | ????34.0 | ||
| Extension at break (m) | ????574 | ????508 | ||
| Decomposability in the dry fibrous web water | ????92 | ????96 | ||
| Decomposability in the wet fiber net water | ????107 | ????98 | ||
From table 11, decomposability has minimum difference in the water of discovery J-1 and J-2.On the other hand, the J-1 sample that has wherein added the thinner fibrillation artificial silk of littler fineness has higher dry strength and the wet strength of Geng Gao.Therefore, should be realized that the fiber web that the thinner fibrillation artificial silk of the littler fineness of use obtains has higher intensity, and does not reduce resolution in the fibroreticulate water.
Embodiment K
According to embodiment A in identical method prepare water and can decompose fiber web.Yet among the embodiment K, papermaking process prepares fiber web by hand, and the processing of not spraying water.Test fibroreticulate performance according to method same as described above.Because this fiber web is papermaking process preparation by hand, so MD direction intensity and CD direction intensity do not have difference.
The data rows that obtains is in table 12.
Table 12
| Sample number | ????K-1 | ????K-2 | ????K-3 | |
| NBKP (making beating) | ????20％ | ????20％ | ????20％ | |
| Fibrillation artificial silk (1.7 dtexs * 5mm) | Beating degree, 600cc | ????80％ | ||
| Beating degree, 400cc | ????80％ | |||
| Beating degree, 200cc | ????80％ | |||
| Quantitatively | g/m 2 | ????46.5 | ????44.6 | ????41.7 |
| Thickness | mm | ????0.289 | ????0.266 | ????0.194 |
| Dry strength | g/25mm | ????701 | ????1050 | ????1640 |
| Wet strength | g/25mm | ????99 | ????135 | ????253 |
| Resolution in the dry fibrous web water | Second | ????＞300 | ????52 | ????30 |
| Decomposability in the wet fiber net water | Second | ????＞300 | ????43 | ????21 |
| Abrasion resistance | Number of repetition | ????5 | ????3 | ????5 |
As shown in table 12, because the hydrogen bond force of the microfiber of fibrillation artificial silk, all samples of K-1-K-3 all has high dry strength.In addition, embodiment K-2 and K-3 have decomposability in the water that high wet strength becomes reconciled.By inference, this high wet strength is because due to the entanglement of strong hydrogen bond and microfiber.Therefore, as long as the fibrillation artificial silk that uses within the scope of the invention, promptly use not comprising that papermaking process that water spray is handled also can obtain having in the high water under resolution and dry state and the hygrometric state and all has high-intensity fiber web.Yet when the fibrillation artificial silk (therefore indicate the numerical value of beating degree little) of too high level making beating is used in preparation in the fiber web, the amount that requires to add the fibrillation artificial silk in the fiber web will increase.Sample K-1 has resolution in the low water.This be because, used among the sample K-1 and do not carried out the too artificial silk of high level fibrillation.Therefore, when preparing in the fiber web fibrillation artificial silk that uses the about 600cc of beating degree with papermaking process, the preferred amount that adds the fibrillation artificial silk in the fiber web that reduces makes thus that resolution further increases in the fibroreticulate water of preparation.
In addition, the do not spray water water handled can decompose fiber web and can decompose fiber web and form laminar structure in conjunction with having carried out water that water spray handles.Such laminate web is easy to bear wiping.
Embodiment L
According to embodiment K in identical method prepare water and can decompose fiber web.Just, papermaking process prepares the fiber web processing of not spraying water by hand.In this hand papermaking method, use be square lapper, the rotary cylinder dried of square fiber web that obtains.For fibrillation artificial silk, be 200cc to beating degree with Lyocell fibre (1.7 dtexs, fibre length 5mm are obtained from Japanese Acordis) fibrillation in bench mixer.The paper pulp beating degree of pulling an oar in jordan is 600cc.For fibrillation artificial silk not, use be rayon fiber (1.7 dtexs, fibre length 5mm).Every fibroreticulate is 40g/m quantitatively
2For the fibroreticulate test of hygrometric state, to wherein infiltrating 250g water, left standstill then 24 hours in every 100g quality fiber web.
According to JIS P-8116 test dry state resistance to tearing, the water of preparation like this can be decomposed the fritter that fiber web is cut into the long 150mm of wide 25mm, use the test of Tensilon test machine, wherein chuck is apart from 100mm, rate of extension 300mm/min (see the following form, wherein data are represented with g).
Also tested the hygrometric state elongation.
The data rows that obtains is in table 13.
Table 13
| Comparative examples | Embodiment | ||||||||||
| ????1 | ????2 | ????3 | ????4 | ????5 | ????L-1 | ???L-2 | ????L-3 | ????L-4 | ????L-5 | ||
| ????NBKP | ??100％ | ??70％ | ??50％ | ??30％ | ??0％ | ????NBKP | ????97％ | ????95％ | ????90％ | ????80％ | ????70％ |
| Artificial silk | ??0％ | ??30％ | ??50％ | ??70％ | ??100％ | Fibrillation artificial silk | ????3％ | ????5％ | ????10％ | ????20％ | ????30％ |
| Dry strength (g/25mm) | ??2925 | ??1918 | ??1115 | ??602 | ???- | Dry strength (g/25mm) | ????3355 | ????3635 | ????3858 | ????3159 | ????2682 |
| Wet strength (g/25mm) | ??60 | ??83 | ??66 | ??45 | ???- | Wet strength (g/25mm) | ????102 | ????112 | ????125 | ????183 | ????201 |
| Degree of drawing under the hygrometric state (%) | ??1.2 | ??3.68 | ??4.38 | ??7.76 | ???- | Degree of drawing under the hygrometric state (%) | ????2.54 | ????3.42 | ????3.35 | ????4.12 | ????4.68 |
| Resolution in the water (second) | ??27 | ??21 | ??11 | ??9 | ???- | Decomposability in the water (second) | ????20 | ????18 | ????19 | ????26 | ????30 |
| Resistance to tearing under the dry state (g) | ??102 | ??93 | ??61 | ??33 | ???- | Resistance to tearing under the dry state | ????112 | ????130 | ????155 | ????159 | ????162 |
| Embodiment | |||||||||||||||
| ??L-6 | ??L-7 | ??L-8 | ??L-9 | ??L-10 | ??L-11 | ??L-12 | ??L-13 | ??L-14 | ??L-15 | ??L-16 | ??L-17 | ??L18 | ??L-19 | ??L-20 | |
| ????NBKP | ??50％ | ??30％ | ??20％ | ??10％ | ??0％ | ??80％ | ??70％ | ??50％ | ??30％ | ??10％ | ??- | ??- | ??- | ???- | ???- |
| Fibrillation artificial silk | ??50％ | ??70％ | ??80％ | ??90％ | ??100％ | ??10％ | ??10％ | ??10％ | ??10％ | ??10％ | ??10％ | ??30％ | ??50％ | ??70％ | ??90％ |
| Artificial silk | ??- | ??- | ??- | ???- | ???- | ??10％ | ??10％ | ??40％ | ??60％ | ??80％ | ??90％ | ??70％ | ??50％ | ??30％ | ??10％ |
| Dry strength (g/25mm) | ??2251 | ??1791 | ??1621 | ??1499 | ??1099 | ??2586 | ??2117 | ??1388 | ??969 | ??549 | ??438 | ??551 | ??674 | ??793 | ??879 |
| Wet strength (g/25mm) | ??254 | ??263 | ??271 | ??275 | ??296 | ??115 | ??109 | ??99 | ??83 | ??67 | ??54 | ??106 | ??163 | ??207 | ??236 |
| Degree of drawing under the hygrometric state (%) | ??6.29 | ??7.73 | ??8.29 | ??8.11 | ??7.89 | ??3.77 | ??4.41 | ??5.32 | ??7.17 | ??8.31 | ??8.76 | ??8.43 | ??8.34 | ??8.25 | ??7.94 |
| Resolution in the water (second) | ??29 | ??31 | ??29 | ??26 | ??29 | ??21 | ??26 | ??29 | ??27 | ??31 | ??32 | ??33 | ??31 | ??32 | ??31 |
| Resistance to tearing under the dry state (g) | ??177 | ??187 | ??193 | ??199 | ??206 | ??119 | ??108 | ??84 | ??76 | ??66 | ??51 | ??83 | ??118 | ??147 | ??164 |
Therefore as shown in table 13, when the ratio of fibrillation artificial silk was not 100%, this fiber can not be bonded together in the hand papermaking method, can not be only forms fiber web by fibrillation artificial silk not.On the other hand, according to sample L-10 of the present invention, even the ratio of fibrillation artificial silk be 100% also by hand papermaking process form fiber web.This fiber web has decomposability and high wet strength in the good water.
In addition, sample of the present invention has high elongation and high resistance to tearing.Therefore, as can be seen, fiber web of the present invention has excellent durability when being used for wiping.
Embodiment M
Prepare water according to the method identical and can decompose fiber web with embodiment L.Yet among the embodiment M, changed the water yield of infiltrated fiber net.
The data rows that obtains is in table 14.
Table 14
| The ratio of water leaking-in (with respect to the sample deadweight) | ????M-1 | ????M-2 | ????M-3 | ????M-4 | ????M-5 | |
| ????NBKP | ????97％ | ????95％ | ????90％ | ????80％ | ????70％ | |
| Fibrillation artificial silk | ????3％ | ????5％ | ????10％ | ????20％ | ????30％ | |
| Dry strength (g/25mm) | ?????- | ????3355 | ????3635 | ????3858 | ????3159 | ????2682 |
| Wet strength (g/25mm) | ????100％ | ????296 | ????247 | ????367 | ????537 | ????565 |
| Degree of drawing under the hygrometric state (%) | ????100％ | ????3.57 | ????3.39 | ????5.3 | ????5.72 | ????5.89 |
| Wet strength (g/25mm) | ????250％ | ????102 | ????112 | ????125 | ????183 | ????201 |
| Degree of drawing under the hygrometric state (%) | ????250％ | ????2.54 | ????3.42 | ????3.35 | ????4.12 | ????4.68 |
| Wet strength (g/25mm) | ????320％ | ????48 | ????52 | ????60 | ????89 | ????102 |
As shown in table 14, contain big water gaging and also can relatively improve wet strength even water of the present invention can decompose fiber web.
The data that provide from above as can be seen, water of the present invention can decompose fiber web and have decomposability and high wet strength in the water well owing to containing fibrillation artificial silk that microfiber forms around the fibrillation and the advantage that therefore can utilize microfiber and fibre matting and/or their hydrogen bond force.In addition, from embodiment, it can also be seen that, fibre length and fineness by fibrillation artificial silk and other fiber in the change fiber web, the beating degree of preparation fibrillation artificial silk, in the fiber web mixed proportion of fibrillation artificial silk and other fiber and fibroreticulate quantitatively, can make the water of the present invention of preparation can decompose decomposability and wet strength in the water that fiber web has fine balance.In addition, when fiber web is used for wiping,, fibroreticulate friction is reduced because the microfiber of fibrillation artificial silk contacts with wipe surfaces.Therefore, fiber web of the present invention has excellent durability.
When handling when spraying water, water of the present invention can decompose fiber web can be more bulk, has soft feeling.
Even handle but for example by the papermaking process preparation, fiber web also can have decomposability and high wet strength and dry strength in the good water without water spray.
Although the present invention has been carried out describing in detail and with reference to its specific implementations, it will be apparent for a person skilled in the art that under the situation that does not depart from the present invention's spirit and its scope and can carry out various changes and improvements it.
Claims (89)
1, a kind of water can decompose fiber web, contain comprising fibrillation and being no more than other fiber of 10mm by the length of the fibrillation artificial silk of its microfiber that stretches out and 0%-97% quality of 3%-100% quality, wherein the beating degree of fibrillation artificial silk is no more than 700cc; The length of fibrillation at its place, Mass Distribution peak is 1.8mm-10mm; And the microfiber that stretches out by the fibrillation of fibrillation artificial silk and at least a other fibrillation, other microfiber and other fibre matting of stretching out by other fibrillation at least.
2, the water according to claim 1 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 2.5mm-less than the beating degree of 4.5mm and fibrillation artificial silk less than 400cc.
3, the water according to claim 2 can decompose fiber web, and wherein length is no more than the 0.5-15% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
4, the water according to claim 1 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak be 2.5mm-less than the beating degree of 4.5mm and fibrillation artificial silk is 400cc-700cc.
5, the water according to claim 4 can decompose fiber web, and wherein length is no more than the 0.1-5% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
6, the water according to claim 1 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is that the beating degree of 4.5mm-7.5mm and fibrillation artificial silk is less than 400cc.
7, the water according to claim 6 can decompose fiber web, and wherein length is no more than the 8-65% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
8, the water according to claim 1 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is that the beating degree of 4.5mm-7.5mm and fibrillation artificial silk is less than 400cc-700cc.
9, water according to Claim 8 can decompose fiber web, and wherein length is no more than the 0.3-50% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
10, the water according to claim 1 can decompose fiber web, and wherein to be no more than the fiber of 10mm be biodegradable fiber to length.
11, the water according to claim 10 can decompose fiber web, and wherein biodegradable fiber is those at least a fibers that are selected from regenerated cellulose, paper pulp, aliphatic polyester, polyvinyl alcohol and collagen.
12, the water according to claim 1 can decompose fiber web, and it quantitatively is 20-100g/m
2
13, the water according to claim 1 can decompose fiber web, tests according to JIS P-4501 that degree of degradation is no more than 200 seconds in its water.
14, the water according to claim 1 can decompose fiber web, and its wet strength is at least 110g/25mm.
15, the water according to claim 1 can decompose fiber web, and its dry strength is at least 350g/25mm.
16, the water according to claim 1 can decompose fiber web, is a kind of bondedfibre fabric that water spray is handled that carried out.
17, the water according to claim 1 can decompose fiber web, and wherein the fineness of fibrillation artificial silk is the 1.2-1.9 dtex.
18, the water according to claim 1 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 3 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 0.1-10% quality of fibrillation artificial silk deadweight.
19, the water according to claim 1 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 4 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 1-14% quality of fibrillation artificial silk deadweight.
20, the water according to claim 1 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 5 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 0.3-45% quality of fibrillation artificial silk deadweight.
21, the water according to claim 1 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 6 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 5-50% quality of fibrillation artificial silk deadweight.
22, the water according to claim 1 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 7 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 10-65% quality of fibrillation artificial silk deadweight.
23, a kind of water can decompose fiber web, comprise comprising fibrillation and being no more than other fiber of 10mm by the length of the fibrillation artificial silk of its microfiber that stretches out and 0%-97% quality of 3%-100% quality, wherein the length of fibrillation at its place, Mass Distribution peak is 1.8mm-10mm; Length is no more than the 0.1-65% quality of the fento Victor fibrillation artificial silk deadweight of 1mm; And the microfiber that stretches out by the fibrillation of fibrillation artificial silk and at least a other fibrillation, other microfiber and other fibre matting of stretching out by other fibrillation at least.
24, the water according to claim 23 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 2.5mm-less than the beating degree of 4.5mm and fibrillation artificial silk less than 400cc.
25, the water according to claim 24 can decompose fiber web, and wherein length is no more than the 0.5-15% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
26, the water according to claim 23 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak be 2.5mm-less than the beating degree of 4.5mm and fibrillation artificial silk is 400cc-700cc.
27, the water according to claim 26 can decompose fiber web, and wherein length is no more than the 0.1-5% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
28, the water according to claim 23 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is that the beating degree of 4.5mm-7.5mm and fibrillation artificial silk is less than 400cc.
29, the water according to claim 28 can decompose fiber web, and wherein length is no more than the 8-65% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
30, the water according to claim 23 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is that the beating degree of 4.5mm-7.5mm and fibrillation artificial silk is 400cc-700cc.
31, the water according to claim 30 can decompose fiber web, and wherein length is no more than the 0.3-50% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
32, the water according to claim 23 can decompose fiber web, and wherein to be no more than the fiber of 10mm be biodegradable fiber to length.
33, the water according to claim 32 can decompose fiber web, and wherein biodegradable fiber is those at least a fibers that are selected from regenerated cellulose, paper pulp, aliphatic polyester, polyvinyl alcohol and collagen.
34, the water according to claim 23 can decompose fiber web, and it quantitatively is 20-100g/m
2
35, the water according to claim 23 can decompose fiber web, tests according to JIS P-4501 that degree of degradation is no more than 200 seconds in its water.
36, the water according to claim 23 can decompose fiber web, and its wet strength is at least 110g/25mm.
37, the water according to claim 23 can decompose fiber web, and its dry strength is at least 350g/25mm.
38, the water according to claim 23 can decompose fiber web, is a kind of bondedfibre fabric that water spray is handled that carried out.
39, the water according to claim 23 can decompose fiber web, and wherein the fineness of fibrillation artificial silk is the 1.2-1.9 dtex.
40, the water according to claim 23 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 3 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 0.1-10% quality of fibrillation artificial silk deadweight.
41, the water according to claim 23 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 4 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 1-14% quality of fibrillation artificial silk deadweight.
42, the water according to claim 23 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 5 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 0.3-45% quality of fibrillation artificial silk deadweight.
43, the water according to claim 23 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 6 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 5-50% quality of fibrillation artificial silk deadweight.
44, the water according to claim 23 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 7 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 10-65% quality of fibrillation artificial silk deadweight.
45, a kind of water can decompose fiber web, comprise comprising fibrillation and being no more than other fiber of 10mm by the length of the fibrillation artificial silk of its microfiber that stretches out and 0%-97% quality of 3%-100% quality, wherein the beating degree of fibrillation artificial silk is not more than 700cc; The length of fibrillation at its place, Mass Distribution peak is 1.8mm-10mm; And the microfiber that stretches out by the fibrillation of fibrillation artificial silk and at least a other fibrillation, other microfiber and other fiber hydrogen bonding that stretch out by other fibrillation at least.
46, the water according to claim 45 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 2.5mm-less than the beating degree of 4.5mm and fibrillation artificial silk less than 400cc.
47, the water according to claim 46 can decompose fiber web, and wherein length is no more than the 0.5-15% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
48, the water according to claim 45 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak be 2.5mm less than the beating degree of 4.5mm and fibrillation artificial silk is 400cc-700cc.
49, the water according to claim 48 can decompose fiber web, and wherein length is no more than the 0.1-5% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
50, the water according to claim 45 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is that the beating degree of 4.5mm-7.5mm and fibrillation artificial silk is less than 400cc.
51, the water according to claim 50 can decompose fiber web, and wherein length is no more than the 8-65% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
52, the water according to claim 45 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is that the beating degree of 4.5mm-7.5mm and fibrillation artificial silk is 400cc-700cc.
53, the water according to claim 52 can decompose fiber web, and wherein length is no more than the 0.3-50% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
54, the water according to claim 45 can decompose fiber web, and wherein to be no more than the fiber of 10mm be biodegradable fiber to length.
55, the water according to claim 54 can decompose fiber web, and wherein biodegradable fiber is those at least a fibers that are selected from regenerated cellulose, paper pulp, aliphatic polyester, polyvinyl alcohol and collagen.
56, the water according to claim 45 can decompose fiber web, and it quantitatively is 20-100g/m
2
57, the water according to claim 45 can decompose fiber web, tests according to JIS P-4501 that degree of degradation is no more than 200 seconds in its water.
58, the water according to claim 45 can decompose fiber web, and its wet strength is at least 110g/25mm.
59, the water according to claim 45 can decompose fiber web, and its dry strength is at least 350g/25mm.
60, the water according to claim 45 can decompose fiber web, and it prepares with papermaking process.
61, the water according to claim 45 can decompose fiber web, and wherein the fineness of fibrillation artificial silk is the 1.2-1.9 dtex.
62, the water according to claim 45 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 3 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 0.1-10% quality of fibrillation artificial silk deadweight.
63, the water according to claim 45 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 4 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 1-14% quality of fibrillation artificial silk deadweight.
64, the water according to claim 45 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 5 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 0.3-45% quality of fibrillation artificial silk deadweight.
65, the water according to claim 45 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 6 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 5-50% quality of fibrillation artificial silk deadweight.
66, the water according to claim 45 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 7 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 10-65% quality of fibrillation artificial silk deadweight.
67, a kind of water can decompose fiber web, comprise comprising fibrillation and being no more than other fiber of 10mm by the length of the fibrillation artificial silk of its microfiber that stretches out and 0%-97% quality of 3%-100% quality, wherein the length of fibrillation at its place, Mass Distribution peak is 1.8mm-10mm; Length is no more than the 0.1-65% quality of the fento Victor fibrillation artificial silk deadweight of 1mm; And the microfiber that stretches out by the fibrillation of fibrillation artificial silk and at least a other fibrillation, other microfiber and other fiber hydrogen bonding that stretch out by other fibrillation at least.
68, the water according to claim 67 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 2.5mm-less than the beating degree of 4.5mm and fibrillation artificial silk less than 400cc.
69, the water according to claim 68 can decompose fiber web, and wherein length is no more than the 0.5-15% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
70, the water according to claim 67 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak be 2.5mm-less than the beating degree of 4.5mm and fibrillation artificial silk is 400cc-700cc.
71, the water according to claim 70 can decompose fiber web, and wherein length is no more than the 0.1-5% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
72, the water according to claim 67 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is that the beating degree of 4.5mm-7.5mm and fibrillation artificial silk is less than 400cc.
73, the water according to claim 72 can decompose fiber web, and wherein length is no more than the 8-65% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
74, the water according to claim 67 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is that the beating degree of 4.5mm-7.5mm and fibrillation artificial silk is 400cc-700cc.
75, the water according to claim 74 can decompose fiber web, and wherein length is no more than the 0.3-50% quality of the fento Victor fibrillation artificial silk deadweight of 1mm.
76, the water according to claim 67 can decompose fiber web, and wherein to be no more than the fiber of 10mm be biodegradable fiber to length.
77, the water according to claim 76 can decompose fiber web, and wherein biodegradable fiber is those at least a fibers that are selected from regenerated cellulose, paper pulp, aliphatic polyester, polyvinyl alcohol and collagen.
78, the water according to claim 67 can decompose fiber web, and it quantitatively is 20-100g/m
2
79, the water according to claim 67 can decompose fiber web, tests according to JIS P-4501 that degree of degradation is no more than 200 seconds in its water.
80, the water according to claim 67 can decompose fiber web, and its wet strength is at least 110g/25mm.
81, the water according to claim 67 can decompose fiber web, and its dry strength is at least 350g/25mm.
82, the water according to claim 67 can decompose fiber web, and it prepares with papermaking process.
83, the water according to claim 67 can decompose fiber web, and wherein the fineness of fibrillation artificial silk is the 1.2-1.9 dtex.
84, the water according to claim 67 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 3 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 0.1-10% quality of fibrillation artificial silk deadweight.
85, the water according to claim 67 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 4 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 1-14% quality of fibrillation artificial silk deadweight.
86, the water according to claim 67 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 5 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 0.3-45% quality of fibrillation artificial silk deadweight.
87, the water according to claim 67 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 6 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 5-50% quality of fibrillation artificial silk deadweight.
88, the water according to claim 67 can decompose fiber web, and wherein the length of fibrillation at its place, Mass Distribution peak is 7 ± 0.5mm, and the length quality that is no more than the microfiber of 1mm reaches the 10-65% quality of fibrillation artificial silk deadweight.
89, a kind of water can decompose fiber web, and the fibrillation artificial silk that its fibrillation length of composition that comprises the 3%-100% quality is 1.8-10mm and the length of 0%-97% quality are no more than other fiber of 10mm, and quantitatively are 20-100g/m
2, thickness is at least 0.2mm, and resolution is no more than 200 seconds in the water of testing under above-mentioned wet condition according to JIS P-4501, and wet strength is at least 110g/25mm.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22016/1999 | 1999-01-29 | ||
| JP2201699 | 1999-01-29 | ||
| JP285655/1999 | 1999-10-06 | ||
| JP28566599A JP2001108583A (en) | 1999-10-06 | 1999-10-06 | Method for measuring concentration of impurity in silicon wafer |
| JP2000012658A JP3640582B2 (en) | 1999-01-29 | 2000-01-21 | Water-decomposable fiber sheet containing fibrillated rayon |
| JP12658/2000 | 2000-01-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1265434A true CN1265434A (en) | 2000-09-06 |
| CN1140658C CN1140658C (en) | 2004-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001046764A Expired - Fee Related CN1140658C (en) | 1999-01-29 | 2000-01-28 | Water decomposable fibre web with fibrillated artificial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1140658C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102459757A (en) * | 2009-06-11 | 2012-05-16 | 尤妮佳股份有限公司 | Water-disintegrable fiber sheet |
| CN108708220A (en) * | 2018-05-20 | 2018-10-26 | 复旦大学 | A kind of anti-fake hand-made paper of double wave length fluorescent and its production method |
| CN110820165A (en) * | 2019-11-08 | 2020-02-21 | 顾勇杰 | Collagen short fiber regenerated leather and preparation process thereof |
| WO2020222778A1 (en) * | 2019-04-30 | 2020-11-05 | Kimberly-Clark Worldwide, Inc. | Embossed dispersible wet wipes |
-
2000
- 2000-01-28 CN CNB001046764A patent/CN1140658C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102459757A (en) * | 2009-06-11 | 2012-05-16 | 尤妮佳股份有限公司 | Water-disintegrable fiber sheet |
| CN102459757B (en) * | 2009-06-11 | 2014-07-30 | 尤妮佳股份有限公司 | Water-disintegrable fiber sheet |
| CN108708220A (en) * | 2018-05-20 | 2018-10-26 | 复旦大学 | A kind of anti-fake hand-made paper of double wave length fluorescent and its production method |
| WO2020222778A1 (en) * | 2019-04-30 | 2020-11-05 | Kimberly-Clark Worldwide, Inc. | Embossed dispersible wet wipes |
| CN110820165A (en) * | 2019-11-08 | 2020-02-21 | 顾勇杰 | Collagen short fiber regenerated leather and preparation process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1140658C (en) | 2004-03-03 |
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