CN1319369A - Thin paper products put in box - Google Patents
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- CN1319369A CN1319369A CN 01101386 CN01101386A CN1319369A CN 1319369 A CN1319369 A CN 1319369A CN 01101386 CN01101386 CN 01101386 CN 01101386 A CN01101386 A CN 01101386A CN 1319369 A CN1319369 A CN 1319369A
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Abstract
The invention provides a compact box of tissues. Plural of tissues are folded with two as a pair in a so-called pop-up method to be stored in a rectangular box. The ratio of the number of sheets of the stored tissues to the measurement of the inner height of the box is 40/400 to 60/400 mm/piece. The thickness of one tissue regulated by JIS P 8118 is 0.030 to 0.043 mm. The tensile strength of one pair of two overlapped tissues regulated by JIS S 3104 is 0.6 to 2.0 N/25 mm under the condition that it is dry and it is a lateral tension and the degree of water absorption regulated by JIS S 3104 is 8 seconds or shorter.
Description
The present invention relates to be placed on the thin paper products of selling in the carton etc. of cardboard system for example, in more detail, thereby relate to thin paper, thin paper products that the height that reduces the chest that is used for folding and unfolding makes its densification the regulation number of folding and unfolding in chest.
Folding what be placed on the thin paper products mass selling that forms in the case of cuboid roughly is according to JIS S 3104 standardized goods with many thin papers, and these goods are adorned 400 thin papers common one the case,, two one group, adorn 200 groups that is.The chest of the appearance and size that the chest of this thin paper of folding and unfolding is initial to use case usually about as 250mm (length) * 120mm (wide) * 110mm (height), thereafter, by densification, now, mainly use is carton about the high 65mm of case.
The trial of this densification, its technical scheme are disclosed in that the spy opens flat 9-140624 communique and the spy opens in flat 10-179441 communique etc.The former discloses: the thin paper that will be placed in the existing box flattens, and it highly is goods in half the chest of aforementioned box that the overlapping thing of compression of half height (thickness) of boil down to is placed on; And the technology of relevant its compression set.
But the technology in this communique only is existing thin paper pile is flattened after copying paper and to make its thickness attenuation, so can predict, the important quality such as taking-up easness of water imbibition, pliability, sense of touch and thin paper that thin paper requires can suffer damage.
In addition, Te Kaiping 10-179441 communique discloses and has not damaged the quality of thin paper requirement and the technology of the densification of the thin paper of the chest of realizing packing into, but, technology in this communique mainly is to realize densification by the density that improves thin paper, concrete disclosedly among the embodiment adorns 400, the vanning thin paper of the high 65mm of case in being.
But, realize densification though can further improve the density of thin paper,, density is too high, can produce the problem on quality problem and the manufacturing technology, and this problem can limit densification.Therefore,, realize further densification for when keeping quality, must the further technology of exploitation.
The objective of the invention is to, a kind of thin paper products that is placed in the chest is provided, can further reduce the height of chest of the thin paper of folding and unfolding regulation number, realize further densification, thereby, consumer's transportation and circulation dealer's convenience improved.And, even make realizing densification under the situation of thickness attenuation of thin paper and paper pile, also the qualities such as easness that the desired so far intensity of thin paper, water imbibition, pliability, sense of touch, thin paper take out can be kept within the limits prescribed, under this state, be realized densification.
Another object of the present invention is to, adorning 400 with in selling at present usually, being contained in highly is the further densification of compact thin paper products in the chest about 65mm.
A first aspect of the present invention provides a kind of thin paper products that is placed in the chest, is one group with many thin papers with two, folding once, (folding once, make that thin paper is overlapping up and down so that so-called pop-up mode is folding, after taking out one group of thin paper, thereafter thin paper promptly arrives conveying end, thereby can take out the folding mode of thin paper continuously), then, put into the roughly chest of cuboid
The height dimension of chest (inside dimensions of case) is that 40/400～60/400mm/ opens (promptly 0.10～0.15mm/ opens) with respect to the ratio of the number of the thin paper of folding and unfolding, and each thickness of opening JIS P 8118 (experimental condition is 20 ± 2 ℃ of temperature, humidity 65 ± 2%) regulation of this thin paper is 0.03～0.043mm.
In this first invention, the height of case (strictly saying the height of the inboard that is chest) diminishes with existing goods ratio with respect to the ratio of the number of the thin paper of folding and unfolding, has been placed on the thin paper products compactness in the chest.Ratio decision when the height (strictly saying the height of the inboard that is chest) of the number of the thin paper of folding and unfolding and relative therewith chest, and then when having determined the thickness of thin paper, just determined the thickness of whole thin paper pile, naturally, the height of the remaining space that keeps in the case (the inside height size of chest deducts the size of the gauge gained of the whole thin paper pile of measuring under the 1.18 * 104Pa pressurized state of back 3 minutes inherences of vanning) and its ratio, the size surplus that is the above-below direction of chest also can determine, the size relationship of short transverse is all decisions roughly, so these sizes are all stipulated.The present invention makes the thickness attenuation of thin paper, thereby makes the thickness attenuation of paper pile, and simultaneously, the height of the remaining space on chest top also reduces, thereby the height of chest is reduced.
In addition, what first invention was stipulated is the ratio of the height dimension of chest with respect to the thin paper number of folding and unfolding, of course not limits the number of thin paper and the height dimension of chest itself.The inside height size of chest, under chest is situation made of paper, can try to achieve by deducting a gauge that forms the paper of chest by the size (gage line size) of measuring between the gage line that is provided with for the height part that bends chest (be provided with under two the situation respectively is between its center line in crooked place) gained.By also can keep the qualify requirement of following explanation by this size relationship of this first invention regulation.
A second aspect of the present invention is in the described thin paper products that is placed in the chest of first invention, the tensile strength of JIS S 3104 regulations of the overlapping one group of thin paper that forms of per two thin papers, under dry, horizontal condition is 0.6～2.0N/25mm, and the water imbibition of JIS S 3104 regulations is below 8 seconds.
Thereby improve the density of thin paper or reduce the level ground amount when making the thickness attenuation of thin paper in order to make folding and unfolding case compactness, extremely important quality concerning thin paper such as the tensile strength that thin paper requires, water imbibition tends to reduce, so this second invention makes and these extremely important qualify requirements can be maintained in the desired so far prescribed limit of thin paper, therefore, stipulated its representational qualify requirement.
Further, in its next invention, its solution is disclosed simultaneously, and, the relation of height of the height of thin paper pile and chest and density, level ground amount and the quality scope etc. of thin paper stipulated.
A third aspect of the present invention, in the present invention first or the described thin paper products that is placed in the chest of second aspect, each thickness by JIS P 8118 (experimental condition is 20 ± 2 ℃ of temperature, humidity 65 ± 2%) regulation of opening this thin paper is 0.03～0.040mm, and each level ground amount by JIS S 3104 regulations of opening this thin paper is 10.0～13.0g/m
2, the density by JIS P 8118 (experimental condition is 20 ± 2 ℃ of temperature, humidity 65 ± 2%) regulation of this thin paper is 0.29～0.37g/cm
3
The 3rd invention fixes on the finger gauge of thin paper than in the better thickness range of the thickness of the thin paper of the first invention regulation, has stipulated to realize that this thickness is used for quality is maintained the level ground amount and the density value of prescribed limit simultaneously.For the thickness of attenuate thin paper, improved the density of thin paper itself, the level ground amount has also reduced simultaneously, and, tensile strength and water imbibition etc. are maintained the setting that is not worse than existing quality to the extremely important qualify requirement of thin paper.
In first to the 3rd invention, when the level ground amount that reduces thin paper reduced thickness, tensile strength reduced, so for intensity is reduced, kinds by improving beating degree or suitably selected timber as paper pulp raw material at the paper stock modulating process etc. can keep the intensity of stipulating.
In addition, though water imbibition also be subjected to paper pulp raw material etc. about, can mainly qualify requirement be maintained the scope of regulation by raising density within reason.
If the densification of thin paper not only utilizes the methods of implementing at present such as press polish among the present invention, also adopt simultaneously raw material suitably selected, regulate method such as wrinkle rate, then can not damage sense of touch.
A fourth aspect of the present invention, in of the present invention first each described thin paper products that is placed in the chest to the third aspect, on described chest, the length of the conveying end long side direction that sets along the long limit of rectangle is represented with the ratio that it accounts for the long edge lengths above the chest, is 72～96%.
Fifth aspect present invention, in each the described thin paper products that is placed in the chest in aspect of the present invention first to fourth, the maximum length of conveying end short side direction is represented with the long side direction length ratio that it accounts for described conveying end, is 17～24%.
Because the height at the remaining space on chest top reduces, under the situation that the height of chest reduces, when taking out thin paper, be difficult to take out, can produce problems such as thin paper is torn, thus the invention of the 4th, the 5th aspect in order to address these problems, must be longer with the Design of length of conveying end long side direction than existing goods, and the length of conveying end short side direction (width) is also suitably set.
Sixth aspect present invention in each the described thin paper products that is placed in the chest in aspect of the present invention first to the 5th, when the area that is configured in the conveying end above the described chest is represented with its ratio with the top gross area, is 23～32%.
The invention of the 6th aspect is also same with the invention of the 4th, the 5th aspect, is the countermeasure that the situation that is difficult to take out thin paper because of the remaining space height on chest top is little is taked.
Seventh aspect present invention, in the described thin paper products that is placed in the chest of in aspect of the present invention first to the 6th each, paste to cover to be located at conveying end inboard above the above-mentioned chest and to have thin paper and take out the film of using the slit, and, be formed at this conveying end central portion when the gap length of the long side direction of chest configuration is represented with its ratio with long edge lengths above the chest, be 66～96%.
As mentioned above, to reduce owing to the remaining space that reduces chest top under the situation of height of chest, in the time of taking out thin paper, just be difficult to take out, so in order addressing this is that, the present invention also to seek to solve described problem by growth conveying end gap length.
Eighth aspect present invention in each the described thin paper products that is placed in the chest in aspect of the present invention first to the 7th, is that the packing density (quality of thin paper/case internal volume) of benchmark is 0.13～0.17g/cm with the chest volume
3
In the 8th invention, the chest of folding and unfolding thin paper is not only the above-below direction of chest, and the long side direction of chest etc. also has size surplus, so all these surplus rates of consideration and stipulate with the chest volume to be the packing density of benchmark.When packing density than described scope hour, be difficult to realize densification, surpass described scope on the contrary and when increasing, just be difficult to keep the qualities such as sense of touch, water imbibition of thin paper, be difficult in the folding and unfolding case, take out.
Ninth aspect present invention in of the present invention first each described thin paper products that is placed in the chest to the eight aspect, is taken out the described whole thin paper pile that is placed in the chest being placed in the chest back, in being placed on chest in back 3 minutes with 1.18 * 10
4Height when the exert pressure of Pa is measured is 62～76% when representing with its ratio with the height of case.
The 9th invents the numerical value of the size surplus of the above-below direction of having stipulated relevant chest, asks ratio with 100% ratio that deducts the height of above-mentioned pile, then obtains the ratio of the height (remaining space) of pile.When this numerical value is too small, when bringing into use thin paper, just be difficult to take out thin paper, cause that easily thin paper is not one group one a group but many problem such as quickly come out.In addition, the numerical value of this invention regulation is according to these numerical value and fixed numerical value when level ground amount, density and the thin paper number of the thin paper of described the first, the 3rd invention regulation and case inner height and ratio thereof determine.
Tenth aspect present invention, in the described thin paper products that is placed in the chest of in aspect of the present invention first to the 9th each, describedly be placed on the crape of the thin paper in the chest (difference of De ラ ィ ヤ-パ-peripheral speed ト) and the peripheral speed of coil paper portion obtains, and is 18～25% by the wrinkle rate of following formula regulation by the drying cylinder portion of paper machine.
Wrinkle rate=100 * (drying cylinder peripheral speed-coil paper portion peripheral speed)/coil paper portion peripheral speed
The tenth invention will be set in the lower prescribed limit by the amount of the crape of the thin paper about the wrinkle rate, thereby realizes the purposes such as thickness of attenuate thin paper.
Usually, when the wrinkle rate descends, the percentage elongation of paper can descend, paper machine has problem in the operability of coil paper portion and laminator (making the machine of two overlapping thin papers), but in the present invention, cooperation by utilizing raw material paper pulp etc. makes the paper softness, thereby the percentage elongation that increases paper solves this problem.Among the present invention, preferably the percentage elongation (JIS P 8118 (experimental condition is 20 ± 2 ℃ of temperature, humidity 65 ± 2%)) of breaking with thin paper throughput direction (vertically) is set at more than 10.0%.
The present invention the tenth on the one hand, in each the described thin paper products that is placed in the chest in aspect of the present invention first to the tenth, the average fineness degree of making the raw material paper pulp that the described thin paper that is placed in the chest uses is the scope of 7～14mg/100m.
Here, the fineness degree of raw material paper pulp utilizes the method for TAPPI T234bm-84 regulation to measure.Thin paper for the situation of copying paper etc. by multilayer and constituting by plurality of raw materials paper pulp under, the average fineness degree of raw material paper pulp is calculated by following formula.
Promptly, thin paper by paper pulp A, paper pulp B ... under the situation that the raw material of paper pulp N is made, when the fineness degree of establishing paper pulp A is that Xa (mg/100m), its cooperation ratio are Wa quality %, the fineness degree of paper pulp B is that Xb (mg/100m), its cooperation ratio are Wb quality %, the fineness degree of paper pulp N is Xn (mg/100m), when its cooperation ratio is Wn quality %, average fineness degree X (mg/100m) can be obtained by following formula.
100/X=Wa/Xa+Wb/Xb+ ... + Wn/Xn, wherein, 100=Wa+Wb+ ... + Wn
The fineness degree of raw material paper pulp is each quality of fiber that every 100m constitutes raw material paper pulp, the fiber of low fineness degree is generally soft, if level ground amount is identical, then the number of fiber of low fineness degree is many, so can obtain surperficial of good quality, sense of touch good and opaque sense is high thin paper.
The tenth on the one hand invention by using the low raw material paper pulp of fineness degree morely, is set at the value that is lower than existing value with the average fineness degree of the fiber in the raw material paper pulp, thereby can prevents the quality decline that the level ground amount reduces and density rises to be caused.
The present invention the 12 aspect, in each described thin paper products that is placed in the chest in first to the tenth one side of the present invention, the ratio of making dry pulp in the raw material paper pulp that described thin paper uses and wet pulp is under situation about the ratio of raw material paper pulp total amount being represented with dry pulp, and % counts more than 40 with quality.
When the density that improves thin paper made its attenuation, thin paper can hardening and lose its pliability, and sense of touch also can worsen, so the 12 invent in order to keep these qualify requirements, had stipulated to help to improve the ratio of the dry pulp of pliability and sense of touch.
So-called dry pulp be not with separate through steaming, clean, bleaching process and the paper pulp made is directly supplied with the paper machine of thin paper, get and with the paper pulp behind the pulp dryer but copy by Paper pulp machine.When making pulp dryer, can destroy the cell that constitutes fiber, when further dry, the cell membrane attenuation forms so-called dry and decayed state, so, when dry pulp is used as the raw material of thin paper, can make the good thin paper of pliability and sense of touch.
The thin paper products that is placed in the chest of the present invention is one group with many thin papers with two, and in the folding chest that is placed on cuboid roughly, the height dimension of chest (inside dimensions of case) is that 40/400～60/400mm/ opens with respect to the ratio of the number of thin paper.Promptly 0.10～0.15mm/ opens.By making below 60/400mm/ opens, make than existing thin paper compactness, improved consumer's transportation and circulation dealer's keeping, the convenience of logistics.With regard to densification, this numerical value is the smaller the better, but when being lower than 40/400mm/ and opening, and then is difficult to keep tensile strength, the water imbibition of thin paper requirement, the qualities such as taking-up easness of thin paper, opens so lower limit is set at 40/400mm/.
In addition, this ratio is preferably 43/400～54/400mm/ and opens, when open when above the easier quality of keeping the thin paper requirement, also easier manufacturing for 43/400mm/.Be set in below 54/400mm/ opens, then compacter, it is desirable that yes.
Each that is placed on thin paper products in the chest of the present invention is opened the JIS P 8118 of thin paper, and (experimental condition is 20 ± 2 ℃ of temperature, humidity 65 ± 2%) Gui Ding thickness is preferably 0.03～0.043mm, when being set in 0.043mm when following, can be with tensile strength, water imbibition, qualities such as the taking-up easness of thin paper maintain setting, simultaneously, can be with the height dimension (inside dimensions of case) of chest with respect to the proportional limit of the number of described thin paper built in described setting, but, if thinner than 0.030mm, water imbibition then, the pliability of thin paper (sense of touch etc.), aspects such as problem on the manufacturing technology and tensile strength are just undesirable.
The chest that with the height dimension (inside dimensions) of folding and unfolding case is 50mm the results are shown in aftermentioned table 1 to what the taking-up easness of thin paper was tested, as described later shown in the table 1, the thickness of thin paper is that 0.040mm is following best, thus above-mentioned gauge better be 0.03～0.040mm.
The tensile strength of JIS S 3104 regulations of the overlapping one group of thin paper that forms of per two thin papers of the present invention, under dry, horizontal condition is 0.6～2.0N/25mm, lower limit 0.6N/25mm is the lower limit of the intensity that requires when using usually of thin paper, and higher limit is the value that anticipation needn't surpass when using usually.And the water imbibition of JIS S 3104 regulations is below 8 seconds.This numerical value also is the quality of common thin paper requirement.That is to say that even thin paper of the present invention quantizes to make its attenuation by densification and low level ground for densification, these qualities also can be kept.In addition, if tensile strength is 0.78～2.0N/25mm under dry, horizontal condition, then the intensity aspect is better, considers also to meet the number range of quality standard regulation of the thin paper of JIS S3104 with absorptive numerical value, so better.
In the thin paper products that is placed in the chest of the present invention, each level ground amount by JIS S 3104 regulations of opening thin paper is preferably 10.0～13.0g/m
2By being set in this scope, can be with tensile strength, water imbibition, qualities such as the taking-up easness of thin paper maintain setting, simultaneously, can with the height dimension (inside dimensions of case) of chest with respect to the proportional limit of the number of described thin paper in described setting, in addition, when reducing the level ground amount, can make the thick attenuation of paper, better for densification, but,, then be difficult to quality is limited in setting if make the level ground amount too small, when further manufacturing paper with pulp, can produce become problem on the manufacturing technology such as easily broken of paper, the lower limit of Gu Ping amount also naturally should be restricted, and preferably its lower limit is 10g/m
2
In the thin paper products that is placed in the chest of the present invention, the density by JIS P 8118 (experimental condition is 20 ± 2 ℃ of temperature, humidity 65 ± 2%) regulation of thin paper is preferably 0.29～0.37g/cm
3, by being set at 0.29g/cm
3More than, qualities such as tensile strength, water imbibition can be maintained setting, simultaneously, can with the height dimension (inside dimensions of feather cockscomb) of chest with respect to the proportional limit of the number of described thin paper in described setting.And when being higher than 0.37g/cm
3The time, particularly bad to the pliability (sense of touch etc.) of water imbibition, thin paper.
Brief description of drawings is as follows:
Fig. 1 is the stereogram of an example of the carton of expression folding and unfolding thin paper of the present invention, is the figure that its partial cut is shown;
Fig. 2 is illustrated schematically in the described case by the side view of flap processing machine with the thin paper of pop-up mode folding and unfolding;
Fig. 3 is the top figure of thin paper folding and unfolding case.
Below, specify the embodiment of thin paper folding and unfolding case of the present invention.Fig. 1 is the stereogram of an example of the expression folding and unfolding case that is placed on the thin paper in the chest of the present invention, is formed with elongated conveying end 2 on the carton 1 of cuboid.Fig. 2 is its profile, schematically shows the thin paper with the folding and unfolding of pop-up mode.Fig. 3 is the top figure of expression folding and unfolding case, is provided with slit 4 on the film 3 of the inboard of conveying end 2 configuration, and this slit 4 also is used to keep thin paper thereafter after taking out thin paper.
In the present invention, under the situation of the height that has reduced chest, the remaining space on chest top diminishes, and just is difficult to take out when taking out thin paper, so in order to address this problem, it is desirable to the shape of conveying end is worked hard.
The shape of the conveying end 2 of the top thin paper 5 that is configured in folding and unfolding case 1 of the present invention, when the maximum length of the conveying end long side direction that sets along the long limit of rectangle is represented with its ratio with long edge lengths above the chest, be 72～96%, and when the maximum length of conveying end short side direction is represented with its ratio with the maximum length of the long side direction of described conveying end, be 17～24%.
When the area that is configured in the conveying end above the described chest is represented with its ratio with the top gross area, be 23～32%.
When the maximum length of the long side direction of described conveying end with chest on during the ratio less than 24% of the ratio less than 72% of face length edge lengths or conveying end area and the top gross area, then when taking out initial thin paper, be easy to generate tearing of thin paper, and, easier Zhang Yiqi takes out, on the contrary, when the ratio of face length edge lengths on the maximum length of the long side direction of described conveying end and the chest greater than 96% or the ratio of conveying end area and the top gross area when surpassing 32%, then when the residue thin paper tails off, the thin paper that then is arranged in (pop-up in) top falls into case from conveying end easily, is easy to generate fault.And, even when in the stickup processing of the Punching Technology of chest (cardboard) and film, little machining deviation taking place, can not absorb this deviation, difficulty of processing is increased.
Equally, the ratio 17～24% of the maximum length of described conveying end short side direction also be when taking out initial thin paper thin paper be difficult for be positioned at the scope that fall difficulty of the thin paper of top when tearability and thin paper surplus tail off from conveying end.
In the present invention, the inboard stickup covers conveying end and has the film of thin paper taking-up with the slit on the folding and unfolding case, and, be formed at this conveying end central portion when the gap length of the long side direction of chest configuration is represented with its ratio with long edge lengths above the chest, be preferably 66～96%.If this ratio is less than 66%, when then taking out initial thin paper, be easy to take place tearing of thin paper, if surpass 96%, then when the surplus of thin paper tailed off, the thin paper that is arranged in the top was easy to fall into case from conveying end, is easy to produce fault, simultaneously, be difficult on film processing slit and go up sticking film at chest (cardboard).
In addition, lower limit if be set at more than 68%, is then taken out more than 66% easily, and is better.
Being placed in the thin paper products in the chest of using at present, with my company is example, the maximum length of that chest forms above, conveying end long side direction is about 69% with the ratio of last face length edge lengths, the maximum length of conveying end short side direction is about 25% with the ratio of conveying end long side direction maximum length, the area of conveying end is about 22% with the ratio of the gross area above the chest, and the ratio of face length edge lengths is about 64% on the gap length of film and the chest.
Below, describe with regard to the manufacture method that is placed on the thin paper products in the chest of the present invention.Manufacture method of the present invention roughly can use the applicant to open disclosed method in the flat 10-179441 communique the spy, but, in the present invention, especially have further feature at selected, the fitting method of raw material and the aspects such as control method of thin paper density, and, for quality (intensity) is limited in setting, the adjusting of the beating degree in the paper stock adjusting operation etc. also has feature, so, add these aspects, the manufacture method of goods of the present invention is described.
The lignocellulosic that the present invention uses has used well to steam by alkali and has separated soup and steam and separate the chemical pulp that coniferous tree or broad leaf tree obtain.Old paper paper pulp is owing to pull an oar, thus be easy to improve intensity, still, undesirable aspect pliability and sense of touch.But so long as can keep the scope of thin paper characteristic of the present invention (quality), also can cooperate, the paper pulp of other TMP, GP etc. also can cooperate in the scope that can keep characteristic of the present invention.
In addition, can utilize commercial middlebrow Yang Ji paper machine, the Yang Ji dryer group is contained on the paper machines such as cylinder, fourdrinier wire, two nets and form as the paper machine of compression thin paper.Certainly, the paper machine of the bulk paper of production such as ventilation seasoning etc. or the employing of copying the paper method are unfavorable.Being suitable for most paper machine of the present invention is 2 layers of Yang Ji paper machine of manufacturing paper with pulp, and copies paper but also can manufacture paper with pulp by 1 layer certainly.
In this Yang Ji paper machine, under 2 layers of situation of manufacturing paper with pulp, best, thickness direction at thin paper paper (ゥ ェ Block), form softness and the good not pulp layer of the broad leaf tree main body of making beating of sense of touch at the dry pusher side of Yang Ji, form pulp layer by the coniferous tree main body that is rich in intensity of the required abundant making beating of thin paper at the opposition side of drying machine.
Common outlet at the Yang Ji drying machine that has carried out dry crepe, thickness direction at thin paper paper, good in dry pusher side sense of touch, wave head at drying machine opposition side crape partly has abrasive material, sense of touch is bad, so when laminator formed two overlapping thin papers, the layer that makes the coniferous tree main body in the inboard of two thin papers relatively, the outside is equipped with the layer of broad leaf tree main body, thereby obtains having certain intensity and the good goods of sense of touch as two-layer thin paper.This is a factor important in the manufacturing of sense of touch good compression thin paper.Below, should be called the compression thin paper by two-layer thin paper (two are overlapping) compression thin paper list.
In the present invention, in order not make the qualities such as densification infringement sense of touch of thin paper, the layer that is preferably in two overlapping especially outsides cooperates dry pulp.The fit rate of wet pulp and dry pulp then can obtain pliability and sense of touch ideal results if be more than 40% for the ratio of the raw material paper pulp total amount dry pulp of layer that forms the outside and inboard layer.
In addition, in the present invention, for the densification of the thin paper that prevents to follow densification and the quality that low level ground quantizes to cause reduce, preferably use the fineness degree that constitutes fiber to be lower than the raw material paper pulp of present situation, the desirable scope of the average fineness degree of raw material paper pulp is 7～14mg/100mm.The fiber of low fineness degree that is lower than 14mg/100mm is soft usually, if the level ground amount is identical, during then low fineness degree, number of fiber is many, so the surface is of good quality, sense of touch is good, simultaneously, opaque sense improves, and can prevent that the opaque sense that sense of touch reduces and low level ground quantizes to cause that densification causes from reducing.In addition, the value of 7mg/100mm is the lower limit of the raw material paper pulp that can be made by common available wood shavings.
In addition, the low level ground quantification of thin paper can cause the tendency that intensity (tensile strength etc.) reduces, so in order to prevent that intensity from reducing, in the paper stock modulating process, can improve the beating degree of raw material paper pulp or adopt the method for suitably selecting as the kind of the timber of paper pulp raw material.
In the present invention, the moisture of the thin paper of Yang Ji drying machine outlet is preferably higher.This moisture needs more than the 5 weight % at least, is preferably more than the 6.5 weight %, below the 9 weight %.When surpassing 9 weight %, the deterioration of moisture banner direction distribution curve can occur, become big with the missionary society of equilibrium water branchs of a thin paper paper normality, thus the THICKNESS CONTROL difficulty during the press polish processing not only, and, can produce problems such as change in size.Moisture is during less than 5 weight %, even apply the pressure compression process thin paper pile of regulation by the folded plate type processing machine, the compression restoring force that the thin paper pile also causes because of timeliness easily in the goods carton interior recovers bulk, and forms the state with carton end face jack-up.Under this state, when the conveying end of carton end face takes out thin paper, because the thin paper that will take out is clamped by the thin paper of carton end face and bottom pile, so can not take out swimmingly, especially when taking out initial several groups, the situation that thin paper is torn takes place easily the consumer.
As everyone knows, being placed on thin paper in the chest in order can one group one group to take out continuously in chest, is interfolded.This folding mode is called the pop-up mode, as the method for being undertaken cross folding mode and flap mode are arranged by machinery, in the cross folding mode, thin paper is that axis folds half approximately with the direction with the operating direction quadrature, and in the flap mode, thin paper is that axis folds half approximately with the operating direction, when the moisture of thin paper is crossed when low, the compression process of this folding line will be insufficient, when taking out the goods thin paper, will have problems.
In the present invention, the density with the compression thin paper products is set at 0.29～0.37g/cm
3(wherein, paper is thick in can survey two mensuration of size).If the not enough 0.29g/cm of density
3, then need apply big pressure by the folded plate type processing machine, not only the thin paper pile easily looses, easily operation is brought obstacle, and, because the bulking recovering that the elasticity of compression of thin paper pile causes forms the state of the interior thin paper of goods carton with carton end face jack-up as previously mentioned easily, be unfavorable for densification.Surpass 0.37g/cm and work as density
3The time, thin paper becomes paper similar (ペ-パ-ラ イ Network), not only lose pliability and grade as thin paper, and water imbibition worsens also.
Method with the combination of common Yang Ji paper machine and laminator control thin paper paper has: give with the control of export of Yang Ji drying machine thin paper paper crape method and by the thick method of press polish processing controls paper.
In order to be placed on the thin paper densification in the chest, used by press polish in the past and handled the method make the thick attenuation of paper (=density is improved), but, in the present invention, in order to realize further densification, it is desirable finding on the basis of existing press polish processing method and controlling density with the method for the crape of controlling thin paper paper.Only use existing press polish processing method, there is the quality restriction in densification, and when density surpassed setting, it is really up to the mark that thin paper will become, and reduces the wrinkle rate so that the method for the thick attenuation of paper (raising density) so preferably adopt in this case.
The crape of thin paper is given by the difference of the peripheral speed of the peripheral speed of the drying cylinder portion of paper machine and coil paper portion usually.That is to say, scrape the change of scratching that the difference of the peripheral speed when getting thin paper produces by wing from the Yang Ji dryer surface and on thin paper, produce wrinkle.In the present invention, find to be preferably 18～25% by the wrinkle rate of aforementioned formula regulation.When the wrinkle rate becomes big above this scope, make under the situation of the thick attenuation of paper in raising density, be easy to generate defectives such as thin paper hardening.When being lower than this scope when the wrinkle rate is reduced, the pliability of thin paper integral body can be lost, so undesirable.
A concrete example of the wrinkle rate that is given by the difference of the peripheral speed of the peripheral speed of the drying cylinder portion of paper machine and coil paper portion is as follows, the peripheral speed of for example establishing drying cylinder is the 1600m/ branch, the peripheral speed of coil paper portion is the 1314m/ branch, and then the wrinkle rate of the thin paper that is obtained by following formula is about 22%.
Wrinkle rate=100 * (drying cylinder peripheral speed-coil paper portion peripheral speed)/coil paper portion peripheral speed
But, by the thick method of press polish processing controls paper, under the situation of thin paper, at laminator two overlapping thin paper paper are used the chill casting roller that a group or two groups fully ground by a pair of each velamen up and down, the calender that metallic roll constitutes, make the thin paper surface smoothing good, make the thick attenuation of paper simultaneously, by this method, controlling the thick method of paper at width, the throughput direction of laminator is usual way.But, when making line pressure too high in order to make the thick attenuation of paper with this calender, owing to the actual nip width that metallic roll is mutual is narrow, so the press polish effect for thin paper paper has too strong tendency, not only cause paper to become hard straight because of ply of paper destroys easily, and the THICKNESS CONTROL of width is also very difficult, fold can become many during coil paper, can not obtain gratifying result.
In the present invention, after laminator, when using the folded plate type processing machine, it is thick to control it as best paper at the whole width of coil paper, and makes thin paper keep excellent characteristic, as its method, preferably selects multistage soft press polish to handle.So-called soft calender is made of a metallic roll and another root resilient roller usually.
Can suitably select to use for example chill casting roller as metallic roll, alloy chill casting roller, the iron and steel roller, further in roller surface plating with the metallic roll of hard chromium etc., resilient roller can suitably select to use the resilient roller of following material formation, these materials for example are: natural rubber, styrene rubber, acrylonitrile-butadiene rubber, chloroprene rubber, Chlorosulphonated ethylene rubber, butyl rubber, polysulfide rubber, silicon rubber, fluorubber, polyurethane rubber, aromatic polyamide resin, poly-(acyl) imide resin, polyether resin, mylar, various plastic resins such as polycarbonate resin, cotton, paper, woollen goods, terylene, nylon or their mixture etc.
The hardness of this resilient roller is counted 80～95 degree with Shore D hardness (ASTM standard D-2240), preferably uses the calender that is made of the resilient roller with 85～92 hardness of spending especially desirable.Wherein, use polyurethane rubber, the easier operation of the resilient roller of aromatic polyamide resin, the life-span of roller is also long, and ideal for obtaining effect required for the present invention.
The number of plies that press polish is handled as previously mentioned, under the situation of facial tissue, usually the chill casting press polish of carrying out 1 layer or 2 layers by laminator is handled, but in handling, aforesaid soft press polish needs 2 layers of processing at least among the present invention, take all factors into consideration the thick and thin paper quality of paper of goods, then it is desirable to carry out 3～4 layers of processing.
The press polish processing method that is suitable for most thin paper manufacturing of the present invention is for carrying out 3 layers of soft press polish processing with soft press polish processing in 1 layer of machine and 2 layers of soft press polish treatment combination at laminator, and line pressure preferably is respectively 4～10kgf/cm.Not only the thin paper paper of having stored at laminator during certain is carried out press polish, receive to crease in the outlet of Yang Ji drying machine and also will carry out press polish after handling at once, thereby, can carry out more effective press polish and handle.
In the Yang Ji drying machine, thin paper is dried to about 5% with moisture from about 50% by the middle pressure steam sensible heat of drying cylinder inside with from the hot blast of drying cylinder gas hood, so a thin paper paper temperature of drying cylinder outlet is 100 ℃, though being delivered in the machine for several meters in operation, can to a certain degree be cooled off during the calender device by thin paper paper, but because the temperature of paper is still near 70 ℃, so the press polish in the machine is treated to hot calendered and handles, compare with handling in the press polish of laminator, under the same line pressure, the paper of thin paper paper is thick further to be reduced, and the sense of touch of thin paper is also further improved.
In the manufacturing of thin paper of the present invention, it is desirable to use dancer to apply the method for the line pressure of 4～10kgf/cm.As everyone knows, dancer is to be dancer rools week (Network ラ ゥ Application) widely used calendering device on paper industry.This roller has rotating metallic axle sleeve and fixed axis, and apply oil pressure at axle sleeve and between centers and make bending, thus dancer rools week.
Further to regulate paper thick by handling in 2 layers of soft press polish of laminator to carry out soft press polish is handled in 1 layer of machine thin paper paper, forms the slit and finish the wide little coil paper of twice of goods for about deficiency, is contained on the folded plate type processing machine.As everyone knows, on processing machine, will be corresponding to the little coil paper of the specified quantity of the group specified number of end article, be contained on the uncoiling machine, pull out thin paper and make it pass through flap along long side direction, thin paper one edge contraction is overlapping on one side, finally, form the thin paper pile of the long ribbon shape of group specified number in the debatching frame.With cutter this thin paper pile is cut to the length of putting into chest, with the carton of recrater (カ-ト Na-) prescribed level of packing into.
In the manufacturing procedure of compression thin paper, the bulk control of vanning back paper pile is most important.Paper pile after the vanning is pulled out, on the paper pile, apply 0.12kgf/cm
2(under the pressure status about 1.18 * 104Pa), preferably the height of thin paper pile is 62～76% of a carton height.
The bulk final adjusting of thin paper pile, well-known, when forming the thin paper pile in frame portion, the draw-gear that suitable platform number is set by the group number according to the thin paper pile carries out.Draw-gear is to clamp the thin paper pile up and down by driving-belt, to the device that the thin paper pile draws simultaneously and compresses, preferably according to the elevation measurement result of described thin paper pile, adjusts the pressurization degree of driving-belt.Why apply 1.18 * 10 to thin paper
4Pressure about Pa is measured bulk, is because if zero load, then the error of bulk measured value is big, is difficult to carry out correct mensuration, and if pressure is excessive, does not then just almost have bulk variation.
When the pressurization of thin paper pile highly surpass the carton height 76% the time because the elasticity of compression of thin paper pile after about 10 days, will form the state of thin paper pile with carton end face jack-up, produce the problem of tearing easily when taking out thin paper as previously mentioned.On the other hand, if less than 64%, even then consider the bulking recovering of the thin paper pile that timeliness is brought, also can produce excessive gap above the thin paper pile and between the carton end face, its result, the vibration when carrying because of goods, the thin paper pile produces wavy distortion in carton interior, when the consumer takes out the thin paper use, be easy to generate the problem that paper is torn.
The thin paper number of the every case of sale predetermined product of compression thin paper constructed in accordance is identical, and with respect to 65mm, the height of carton can reduce about 23%.Can obtain following result, that is, the density of thin paper increases by 10% approximately, and level ground amount reduces 5% approximately, and thickness reduces 15%, and qualities such as tensile strength (laterally), water imbibition, sense of touch find that itself and the product of having now do not have difference by the analytical test data etc.In addition, the height of thin paper pile has also increased about 7% with respect to the ratio of the height of chest, but by change conveying end shape etc., the taking-up easness when taking out thin paper does not change.
Followingly be described more specifically the present invention, the invention is not restricted to these embodiment certainly according to embodiment.In addition, the branch in embodiment and the comparative example, % represent quality branch, quality % except that specifying.Analytical unit and assay method during embodiment and comparative example are estimated are as follows.
1, level ground amount: the g/m of unit
2, measure according to JIS S 3104.
2, thickness: the mm of unit, measure according to JIS P 8118 (experimental condition is 20 ± 2 ℃ of temperature, humidity 65 ± 2%).The thickness of thin paper products is by two mensuration, so will be divided by 2.
3, density: the g/cm of unit
3, measure according to JIS P 8118 (experimental condition is 20 ± 2 ℃ of temperature, humidity 65 ± 2%).
4, tensile strength (laterally): the N of unit, measure according to JIS S 3104, test film be two overlapping, to laterally drawing of paper, paper is wide to be 25 ± 0.1mm, the grasping spacing is 100 ± 2mm.
(wherein, why selecting horizontal condition, is because in taking out case under the situation of thin paper, as shown in Figure 1, draw and take out this thin paper to laterally (direction vertical with copying the paper direction), so stipulated the tensile strength consistent with user mode of these goods.)
5, water imbibition: unit second, measure according to the method for the dripping water imbibition of JIS S 3104.
6, sense of touch: sense evaluation assessment: the sense evaluation according to 5 men, 15 woman is shown by following benchmark.
Very good: ◎ is good: zero, general: △ is poor: *
7, the thin paper pile is bulk: the mm of unit, take goods in the outlet of vanning machinery, and taking the pressurization 1.18 * 10 of (casing back 3 minutes in) in back 3 minutes
4Under the situation of Pa, measure bulk (highly) of thin paper pile with JIS metal chi.
8, the taking-up easness of goods thin paper: the sense evaluation assessment: goods are taked in the outlet at recrater, and 5 bag blister-packs and cardboard box packing are tested.Then, at the 10th～11 day, to the goods behind the round about 700km of truck transport, the sense evaluation according to 5 men, 15 woman was shown by following benchmark.
Very good: ◎ is good: zero, general: △ is poor: *
9, fineness degree: the mg/100m of unit, measure according to TAPPI T234hm-84.Average fineness degree is calculated by above-mentioned formula.For example under the situation of embodiment 1, when the paper pulp fineness degree of establishing dry pusher side and drying machine opposition side is respectively Xa, Xb, when average fineness degree is X, then calculate by following formula:
100/X=60/Xa+40/Xb。
10, break percentage elongation (longitudinal and transverse): %, measure according to JIS P 8118 (experimental condition is 20 ± 2 ℃ of temperature, humidity 65 ± 2%).Vertically, laterally be the expression direction vertical with copying the paper direction for copying the paper direction.All be under the drying regime of goods, to measure.Two of test films are overlapping, draw to the vertical or horizontal of paper, and paper is wide to be 25 ± 0.1mm, and the grasping spacing is 100 ± 2mm.
The mensuration of thin paper papery as mentioned above, the JIS standard according to thin paper is that JIS S 3104 carries out basically, is not measured by JIS P 8118 and JIS P 8113 by the papery of this regulation.Experimental condition (standard state that is used for damping and test) under the situation of JIS S 3104, is 20 ± 5 ℃ of room temperatures, humidity 65 ± 5%, and other conditions are by JIS P 8111 regulations.Relative therewith, the experimental condition of JIS P 8118 and JIS P 8113 regulations is suitable for JIS P 8111, therefore, uses 20 ± 2 ℃ of temperature, humidity 65 ± 2% before 31 days March in 2000, then changes thereafter for 23 ± 1 ℃ of temperature, humidity 50 ± 2%.
Therefore, the confusion that causes for the change of avoiding this standard, to experimental condition, under the situation of JIS S 3104, by standard setting is 20 ± 5 ℃ of room temperatures, humidity 65 ± 5%, under the situation of JIS P 8118 and JIS P8113, having used existing condition is 20 ± 2 ℃ of temperature, humidity 65 ± 2%.
Embodiment 1
As raw material paper pulp, used to the paper pulp of the coniferous tree NBSK (NGKP) of not pulling an oar broad leaf tree NBSK (LBKP) and pulling an oar with respect to the moistening paper power reinforcing agent AF255 (waste ship chemistry system) of paper pulp interpolation 0.12%, utilize the two-layer Yang Ji paper machine of manufacturing paper with pulp of folder net type, make LBKP be positioned at dry pusher side at the thickness direction of thin paper paper, make NBKP be positioned at the drying machine opposition side, copy paper, make part by weight be, dry pusher side: drying machine opposition side=60: 40.Copy paper moisture and be adjusted to 6.8%.The press polish of press polish and laminator is all handled with soft calender in the machine, and the pair of rolls upside is for applying the resilient roller of polyurethane rubber, and its Shore hardness is 92 degree, and the roller of downside is a metallic roll, uses dancer.Line pressure is all regulated pressure when press polish and laminator press polish near 7kgf/cm (68.7N/cm) in machine, make that the density of thin paper is 0.32g/cm3.
The ratio of dry pulp is 70% in the raw material paper pulp, and the evaluation fineness degree of fiber is 11.6mg/100m in the raw material paper pulp, and the level ground amount of thin paper is 12.0g/m2, and the wrinkle rate is 22%.
In laminator, the drying machine opposition side is placed the inboard opposite of thin paper paper, two are overlapping, carry out press polish and handle, and afterwards, form the wide slit of 199mm.In folded plate type processing machine (PCMC corporate system), fold and form 200 groups of (400) thin paper piles by the cross folding machine.In draw-gear, regulate applied pressure, make that the bulk height of embodiment 1～11 processing back thin paper pile is about 29～39mm.With scissors the thin paper pile is cut into the length of 232mm, in recrater (カ-ト Na-) load map 1, folding and unfolding case shown in Figure 3.The folding and unfolding case is following folding and unfolding case made of paper, wherein, and top minor face size (L
2)=116mm, long limit size (L
1)=242mm, and the chest height (inside dimension, H)=50mm.The thin paper conveying end of this folding and unfolding case is of a size of: the maximum length B=192mm of long side direction, width A=41.5mm, gap length I=170mm.That is to say B/L
1=79%, A/B=22%, I/L
1=70%.The conveying end area is 25% with the ratio of the top gross area, and the thickness that forms the paper of case is 0.5mm.
Level ground amount 11g/m
2
The change rolling condition makes that the density of thin paper is 0.29g/cm
3
In addition, by changing above-mentioned condition, the height of the thickness of thin paper, thin paper pile changes naturally.In the following example too.
Level ground amount 13g/m
2
The change rolling condition makes that the density of thin paper is 0.33g/cm
3
Embodiment 4 is except that following condition change, and other are identical with embodiment 1.
Level ground amount 12g/m
2
The change rolling condition makes that the density of thin paper is 0.37g/cm
3
Level ground amount 11g/m
2
The change rolling condition makes that the density of thin paper is 0.37g/cm
3
The height setting of folding and unfolding case is 43mm (a chest inside dimensions).
The less-than-ideal embodiment that just enters below in the scope of the invention narrates.
Embodiment 6 is except that following condition change, and other are identical with embodiment 1.
Change the kind and the proportioning of raw material paper pulp, the average fineness degree of raw material paper pulp is set at 15mg/100m.
Embodiment 7 is except that following condition change, and other are identical with embodiment 1.
Level ground amount 12g/m
2
The change rolling condition makes that the density of thin paper is 0.38g/cm
3
Embodiment 8 is except that following condition change, and other are identical with embodiment 1.
Level ground amount 14g/m
2
The change rolling condition makes that the density of thin paper is 0.34g/cm
3
Embodiment 9 is except that following condition change, and other are identical with embodiment 1.
Level ground amount 10g/m
2
The change rolling condition makes that the density of thin paper is 0.29g/cm
3
Embodiment 10 is except that following condition change, and other are identical with embodiment 1.
Wrinkle rate 26%
Change rolling condition a little, make that the density of thin paper is 0.29g/cm
3
Embodiment 11 is except that following condition change, and other are identical with embodiment 1.
Wide when the dish spacing that paper stock is regulated the beater (two disc pulping machine) of operation is regulated than embodiment 1, reduce bearing power.That is to say, reduce beating degree.
Below comparative example is narrated.
Comparative example 1～4 expression is the value of the boxlike thin paper of circulation at present.
To the foregoing description and comparative example, according to the said determination condition, the tensile strength (laterally) of mensuration thin paper, thickness, level ground amount, density, water imbibition etc. the results are shown in table 1 with it.
Table 1
The measurement result that to break percentage elongation to the foregoing description 1 and comparative example 1 is shown in table 2.
| Chest height (inside dimension) (mm) | Chest height/thin paper number (mm/ opens) | The height of thin paper pile/chest height (mm/mm) | The papery of thin paper products and creating conditions | The taking-up easness of goods thin paper | With the chest cellar for storing things is the packing density (g/cm of benchmark 3) | Special item | |||||||||
| Level ground amount (g/m 2) | Density (g/cm 3) | Thickness (mm) | The ratio of dry pulp (%) | Fineness degree (mg/100m) | Wrinkle rate (%) | Tensile strength (N/m) | Water imbibition (second) | Sense of touch | |||||||
| Embodiment 1 | ????50 | ?50/400 | ????36/50 | ?12.0 | ?0.32 | ?0.038 | ????70 | ????11.6 | ????22 | ????1.2 | ?5.5 | ?◎ | ?○ | ????0.156 | |
| Embodiment 2 | ????50 | ?50/400 | ????36/50 | ?11.0 | ?0.29 | ?0.038 | ????70 | ????11.6 | ????22 | ????1.2 | ?5 | ?◎ | ?○ | ????0.143 | |
| Embodiment 3 | ????50 | ?50/400 | ????37/50 | ?13.0 | ?0.33 | ?0.039 | ????70 | ????11.6 | ????22 | ????1.2 | ?5 | ?◎ | ?○ | ????0.169 | |
| Embodiment 4 | ????50 | ?50/400 | ????31/50 | ?12.0 | ?0.37 | ?0.032 | ????70 | ????11.6 | ????22 | ????1.2 | ?7 | ?○ | ?○ | ????0.156 | |
| Embodiment 5 | ????43 | ?43/400 | ????29/42 | ?11.0 | ?0.37 | ?0.030 | ????70 | ????11.6 | ????22 | ????1.2 | ?7.5 | ?○ | ?○ | ????0.166 | |
| Embodiment 6 | ????50 | ?50/400 | ????36/50 | ?12.0 | ?0.32 | ?0.038 | ????70 | ????15 | ????22 | ????1.2 | ?4 | ?△ | ?○ | ????0.156 | |
| Embodiment 7 | ????50 | ?50/400 | ????31/50 | ?12.0 | ?0.38 | ?0.032 | ????70 | ????11.6 | ????22 | ????1.2 | ?10 | ?△ | ?○ | ????0.156 | |
| Embodiment 8 | ????50 | ?50/400 | ????39/50 | ?14.0 | ?0.34 | ?0.041 | ????70 | ????11.6 | ????22 | ????1.2 | ?8 | ?◎ | ?× | ????0.182 | Being easy to many groups when taking out thin paper at first takes out together |
| Embodiment 9 | ????50 | ?50/400 | ????33/50 | ?10.0 | ?0.29 | ?0.034 | ????70 | ????11.6 | ????22 | ????1.2 | ?5 | ?◎ | ?○ | ????0.13 | Paper machine is produced not stability |
| Embodiment 10 | ????50 | ?50/400 | ????39/50 | ?12.0 | ?0.29 | ?0.041 | ????70 | ????11.6 | ????26 | ????1.2 | ?3.5 | ?◎ | ?× | ????0.156 | Being easy to many groups when taking out thin paper at first takes out together |
| Embodiment 11 | ????50 | ?50/400 | ????36/50 | ?12.0 | ?0.32 | ?0.038 | ????70 | ????11.6 | ????22 | ????0.5 | ?4 | ?◎ | ?× | ????0.156 | Easily tear when taking out thin paper |
| Comparative example 1 | ????65 | ?65/400 | ????46/65 | ?13.6 | ?0.29 | ?0.047 | ????20 | ????26 | ????1.2 | ?3.5 | ?○ | ?○ | ????0.136 | ||
| Comparative example 2 | ????65 | ?65/400 | ????44/65 | ?13.0 | ?0.28 | ?0.046 | ????60 | ????1.1 | ?3.5 | ?◎ | ?○ | ????0.13 | |||
| Comparative example 3 | ????65 | ?65/400 | ?????- | ?12.7 | ?0.3 | ?0.043 | ????- | ????1.2 | ?4.4 | ?◎ | ?○ | ????0.127 | |||
| Comparative example 4 | ????65 | ?65/400 | ?????- | ?12.6 | ?0.31 | ?0.041 | ????- | ????1.2 | ?5.4 | ?○ | ?○ | ????0.126 | |||
Table 2
| Break percentage elongation | ||
| Vertically (%) | Laterally (%) | |
| Embodiment 1 | ????13.5 | ????7.3 |
| Comparative example 1 | ????13.3 | ????8.3 |
The embodiment of following his-and-hers watches 1 record and the meaning of comparative example are specifically described.Embodiment 1 is most typical Production Example.Embodiment 2 is the example of display density lower limit, even in this case, by reducing the thickness attenuation that level ground amount etc. also can make each thin paper, also can make the taking-up easness of thin paper good, also can make water imbibition and tensile strength maintain setting.Embodiment 3 is the examples that show level ground amount higher limit, even in this case, also can make the taking-up of thin paper easy by regulating density etc.Embodiment 4 is the examples that also water imbibition, sense of touch can be maintained setting when density is higher limit.
Even embodiment 5 expression is measured and density is reduced to the example that 43mm also can keep the taking-up easness of goods thin paper with the chest height during near boundary value when the level ground.Even embodiment 6 represents with the level ground amount, when density keeps within the limits prescribed, the example that sense of touch also can worsen when improving the value of fineness degree.
Embodiment 7 is the too high situation of density, the example that the expression sense of touch worsens, absorptive value also uprises.Embodiment 8 is the too high situation of level ground amount, and the height of density thin paper pile also can uprise even expression improves, the example of the taking-up deterioration of thin paper.Embodiment 9 produces disconnected paper fault etc. at paper machine easily for the level ground amount being reduced to the example of boundary, is the boundary of steady production, pays particular attention to and keeps water imbibition and intensity.Embodiment 10 is the examples that are expressed as follows, that is, when setting the wrinkle rate higher, even rolling condition is identical, the thickness of thin paper also can thickening (height of thin paper pile uprises), and obstacle appears in the taking-up of thin paper.
The following example of embodiment 11 expressions, that is, level ground amount, density are in the scope of third aspect present invention, but beating degree is low, so tensile strength low (scope of second aspect present invention is outer) is easily torn the deterioration of taking-up property when thin paper takes out.
Comparative example 1～4th, the example of the compact boxlike thin paper of circulation at present.With goods ratio of the present invention, the thickness of thin paper is thicker, and the height of thin paper pile accounts for the ratio of the height of folding and unfolding case and also sets lessly, is 65mm so the height of folding and unfolding case needs higher dimensional.
The percentage elongation of breaking shown in the following his-and-hers watches 2 describes.As described in the 8th invention, when the wrinkle rate reduces, the percentage elongation of paper reduces, in the coil paper portion and laminator of paper machine, operating characteristics such as the traction section change of paper go wrong, and still, the thin paper of embodiment 1 is compared with the comparative example of existing goods, because vertically the percentage elongation of breaking of (throughput direction of paper) is kept equal value, so be difficult for taking place the problems referred to above.
According to the present invention, for the thin paper products that is placed in the chest, the height owing to can reduce the chest of folding and unfolding with respect to the folding and unfolding number of stipulating can make described goods compactness, so can improve the convenience of consumer's transportation and keeping.
In addition, in order to realize densification, need make the thickness attenuation of thin paper, so quality is reduced, but according to the present invention, can will be so far the qualities such as taking-up easness of the desired intensity of thin paper, water imbibition, pliability, sense of touch, thin paper maintain under the state of prescribed limit, realize densification.
That is to say, the present invention is lower than the method for existing goods as the ratio that makes the chest height with the thin paper of the regulation number of folding and unfolding, particularly, when improving density, the level ground amount is reduced to required minimum, and the height of chest top remaining space is also reduced, then, in order to compensate the reduction of level ground amount, used and improved beating degree or the suitable methods of selecting as the timber of paper pulp raw material such as kind, so can keep the intensity of regulation.By density not being improved high method, water imbibition also can maintain setting.
Fourth, fifth, six aspects according to the present invention, the length of the conveying end by making upper box part and be installed in modes such as the existing goods of gap length of film of conveying end are long can compensate the minimizing of upper box part remaining space, improves the taking-up easness of thin paper.
The suitable packing density that eighth aspect present invention has been stipulated to be used to realize densification and kept quality.Ninth aspect present invention makes thin paper take out easily by the numerical value of the remaining space of the relevant upper box part of regulation.
According to tenth aspect present invention, be set at lower setting by wrinkle rate with thin paper, can make the thickness attenuation and realize densification.Method as control density, if only adopt used press polish processing method at present, then aspect densification, there is the quality boundary, when density surpasses setting, it is really up to the mark that thin paper becomes, so as described herein, on the basis of press polish processing method, and with the adjusting of wrinkle rate, by the wrinkle rate is reduced, improve density, make the thick attenuation of paper, can make the thin paper of keeping pliability and sense of touch.
According to an eleventh aspect of the invention, the average fineness degree of the raw material paper pulp by will being used to make thin paper is set at lower setting, can prevent that the thin paper density sense of touch of bringing that rises from worsening, and prevents that the level ground amount from reducing the opaque sense reduction that causes etc.
The 12 aspect according to the present invention, because the ratio of dry pulp is defined in more than the setting, so improved the sense of touch and the pliability of thin paper.
Claims (12)
1, a kind of thin paper products that is placed in the chest is one group with many thin papers with two, puts into the roughly chest of cuboid so that so-called pop-up mode is folding, it is characterized in that,
The inside height size of chest is that 40/400～60/400mm/ opens with respect to the ratio of the number of the thin paper of folding and unfolding, and each thickness of opening JIS P 8118 regulations of this thin paper is 0.03～0.043mm.
2, the thin paper products that is placed in the chest as claimed in claim 1, it is characterized in that, the tensile strength of JIS S 3104 regulations of the overlapping one group of thin paper that forms of per two described thin papers, under dry, horizontal condition is 0.6～2.0N/25mm, and the water imbibition of JIS S 3104 regulations is below 8 seconds.
3, the thin paper products that is placed in the chest as claimed in claim 1 or 2 is characterized in that, each thickness by JIS P 8118 regulations of opening this thin paper is 0.03～0.040mm, and each level ground amount by JIS S 3104 regulations of opening this thin paper is 10.0～13.0g/m
2, the density by JIS P 8118 regulations of this thin paper is 0.29～0.37g/cm
3
4, as each described thin paper products that is placed in the chest of claim 1～3, it is characterized in that the conveying end that forms sets along the long limit of case on described chest, the maximum length of described conveying end long side direction is represented with its ratio with long edge lengths above the chest, is 72～96%.
As each described thin paper products that is placed in the chest of claim 1～4, it is characterized in that 5, the maximum length of described conveying end short side direction is represented with its ratio with the long side direction maximum length of described conveying end, is 17～24%.
6, as each described thin paper products that is placed in the chest of claim 1～5, it is characterized in that, when the area that is configured in the conveying end above the described chest is represented with its ratio with the top gross area, is 23～32%.
7, as each described thin paper products that is placed in the chest of claim 1～6, it is characterized in that, the inboard stickup has the film of thin paper taking-up with the slit on above-mentioned chest, simultaneously, this slit is configured in the long side direction of chest at the central portion of the conveying end of chest, and, when described gap length is represented with its ratio with long edge lengths above the chest, be 66～96%.
As each described thin paper products that is placed in the chest of claim 1～7, it is characterized in that 8, is that the packing density of benchmark is 0.13～0.17g/cm by the gross mass of thin paper/case internal volume regulation with the chest volume
3
9, as each described thin paper products that is placed in the chest of claim 1～8, it is characterized in that, the described whole thin paper pile that is placed in the chest is being placed in the chest in back 3 minutes, with 1.18 * 10
4When the exert pressure of Pa is measured, when the height of described paper pile is represented with its ratio with the inside height of case, be 62～76%.
10, as each described thin paper products that is placed in the chest of claim 1～9, it is characterized in that, the described crape that is placed on the thin paper in the chest is obtained by the difference of the peripheral speed of the peripheral speed of the drying cylinder portion of paper machine and coil paper portion, is 18～25% by the wrinkle rate of following formula regulation
Wrinkle rate=100 * (drying cylinder peripheral speed-coil paper portion peripheral speed)/coil paper portion peripheral speed.
As each described thin paper products that is placed in the chest of claim 1～10, it is characterized in that 11, the average fineness degree of copying the raw material paper pulp used of the described thin paper that is placed in the chest of system is 7～14mg/100m.
12, as each described thin paper products that is placed in the chest of claim 1～11, it is characterized in that, the ratio of copying the dry pulp in the raw material paper pulp used of the described thin paper that is placed in the chest of system is under situation about the ratio of raw material paper pulp total amount being represented with described dry pulp, and % counts more than 40% with quality.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000024073 | 2000-02-01 | ||
| JP024073/2000 | 2000-02-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1319369A true CN1319369A (en) | 2001-10-31 |
| CN1128602C CN1128602C (en) | 2003-11-26 |
Family
ID=18550139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01101386 Expired - Fee Related CN1128602C (en) | 2000-02-01 | 2001-01-05 | Thin paper products put in box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1128602C (en) |
| HK (1) | HK1037944A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104433930A (en) * | 2013-09-12 | 2015-03-25 | 大王制纸株式会社 | Domestic tissue containing box |
| CN105658127A (en) * | 2014-01-31 | 2016-06-08 | 大王制纸株式会社 | Pocket tissue |
| CN113165793A (en) * | 2018-11-29 | 2021-07-23 | 大王制纸株式会社 | Sheet package |
| CN113195187A (en) * | 2018-11-15 | 2021-07-30 | 山勝实验室有限公司 | Method for preparing unsintered polytetrafluoroethylene film and porous film thereof |
-
2001
- 2001-01-05 CN CN 01101386 patent/CN1128602C/en not_active Expired - Fee Related
- 2001-12-19 HK HK01108871A patent/HK1037944A1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104433930A (en) * | 2013-09-12 | 2015-03-25 | 大王制纸株式会社 | Domestic tissue containing box |
| CN104433930B (en) * | 2013-09-12 | 2019-03-29 | 大王制纸株式会社 | Household thin paper holding case |
| CN105658127A (en) * | 2014-01-31 | 2016-06-08 | 大王制纸株式会社 | Pocket tissue |
| CN113195187A (en) * | 2018-11-15 | 2021-07-30 | 山勝实验室有限公司 | Method for preparing unsintered polytetrafluoroethylene film and porous film thereof |
| CN113165793A (en) * | 2018-11-29 | 2021-07-23 | 大王制纸株式会社 | Sheet package |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1128602C (en) | 2003-11-26 |
| HK1037944A1 (en) | 2002-03-01 |
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Granted publication date: 20031126 Termination date: 20140105 |