CN101817242B - Sanitary tissue paper - Google Patents
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- CN101817242B CN101817242B CN201010124859.5A CN201010124859A CN101817242B CN 101817242 B CN101817242 B CN 101817242B CN 201010124859 A CN201010124859 A CN 201010124859A CN 101817242 B CN101817242 B CN 101817242B
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Abstract
The invention relates to a sanitary tissue paper, and provides a kitchen paper with excellent visibility of the imbibition position. A kitchen paper, is formed by laminating a plurality of sheets and implementing the embossing processing, the surface sheet is a white sheet taking bleaching paper pulps as the raw materials, at least one layer of sheet is a colored sheet containing non-bleaching paper pulps as the raw materials.
Description
Technical field
The present invention relates to sanitary thin paper, be particularly visually easy to confirm the sanitary thin paper of the absorption of oil content, moisture.
Background technology
The various situations of sanitary thin paper and life are correspondingly as uses such as paper for kitchen, sanitary tissue, lavatory paper, tissue, very universal.
In above-mentioned various sanitary thin papers, for example, paper for kitchen if, in many aspects for the drippage absorbing material of packaging for foodstuff, the gland (と Cover falls) of preparing food, fresh fish etc., dewater, the purposes of the superfluous oil content of oil strain, absorption Fried Fishes, wiping cleaning kitchen around etc., the liquid-absorbents such as water imbibition, oil absorption are desired critical functions.
Therefore, as the sanitary thin paper of paper for kitchen is general, manyly form in the following way: will implement the stacked suitable number of body paper of embossing processing and form, and in the space of the capillarity due to the interfibrous space of the sheet of usining as main imbibition mechanism and between the embossing of each sheet, suck and keep moisture, oil content etc.In addition, as the sanitary thin paper of paper for kitchen, owing to requiring clean feel, the demand of the paper that the high bleached pulp of whiteness (also referred to as bleached pulp) of therefore take is raw material is high.
In addition, the sanitary tissue as other forms of sanitary thin paper, is widely used in the living room in average family, bedroom, study and office etc.The purposes of this sanitary tissue with nose paper handkerchief, wipe hand, wiping desk, table top, other variety of ways and be widely used, require scrubbability, the skin sense of touch while wiping away one's snivel is not need superfluous words, also requires water imbibition, oil absorption.
Therefore, sanitary tissue forms as follows, that is, stacked with 2～3 laminate layer (ply) structures, and the capillarity of take due to the interfibrous space of lamella and sheet sucks maintenance moisture, oil content etc. as main imbibition mechanism in the space of each sheet.In sanitary thin paper at this as sanitary tissue, owing to also requiring clean feel, the demand of the paper that the high bleached pulp of whiteness (also referred to as bleached pulp) of therefore take is raw material is high.
In addition, lavatory paper, the tissue as other forms of sanitary thin paper often used in lavatory and toilet.The purposes of lavatory paper is for wiping stern, the water because of on use wiping toilet seat of warm water washing toilet seat (shower toilet) etc., the cleaning in lavatory, skin sense of touch, scrubbability while require wiping stern are not need superfluous words, special requirement water imbibition, the sense of feeling at ease of can not the back side oozing out when using warm water washing toilet seat recently.
Therefore, as the sanitary thin paper of lavatory paper, generally form as follows: by implemented embossing processing thin paper the stacked suitable number of sheet and form, capillarity main suction in the space of main imbibition mechanism between the embossing of each sheet of take due to the interfibrous space of lamella and sheet keeps moisture etc.
In addition, in the paper of lavatory, in the past due to economy, purposes etc., and it is very large to take the demand of regeneration lavatory paper of individual layer that secondary stock is main material or 2 layers, but recently owing to requiring clean feel, the demand of the paper that the high bleached pulp of whiteness (also referred to as bleached pulp) of therefore take is main material increases gradually.
On the other hand, while using in the wiping water of tissue after the washing one's hands of waiting after using that go to toilet, other purposes, require scrubbability, water imbibition.
Therefore, tissue mainly forms as follows: the structure with individual layer or 2 laminate layers is stacked, and the capillarity of take due to the interfibrous space of lamella and sheet sucks maintenance moisture etc. as main imbibition mechanism in the space of each sheet.
In this tissue, owing to take, wipe hand purposes as main, so the demand of the regeneration tissue of being made by secondary stock is many in the past, but recently owing to requiring clean feel, the demand of the paper that the high bleached pulp of whiteness (also referred to as bleached pulp) of therefore take is raw material increases gradually.
Like this, although sanitary thin paper is used in many-side, the absorbency that water imbibition, oil absorption be representative of take becomes extremely important function.
Yet absorbent is although it is so important, but sanitary thin paper, after imbibition, was difficult to judge visually or intuitively position, the amount of imbibition in the past.
Especially the paper that the bleached pulp that the whiteness of take is high is made as raw material, even water suction, oil suction, the contrast of paper changes also few, exists while looking and is difficult to visually judge that liquid absorption has reached the such shortcoming of which kind of degree.
As the prior art that is conceived to such problem, for example, disclose the technology that is equivalent to paper for kitchen as " grease wiping paper using shape body ", but it is only simply by dyed layer and blotter coat laminating, the blotter coat transparence due to oil suction, also insufficient aspect the identification of oil absorption, oil absorption, for water suction, do not bear function.
In addition, in sanitary tissue of 3-tier architecture etc., also adopted painted to middle level, from surface, can see that painted technology, this technology considered design, but can not see the scope of liquid absorption, imbibition.And then, thereby have liquids such as using acid-base indicator and make the paper of the part colour developing identification water suction of water suction, but due to acid-base indicator this as water-soluble, so may see through paper, be transferred on hand, be unsuitable for the purposes that water absorption is many.And invalid in principle for oil suction.
Patent documentation 1: the real S49-124867 that opens of Japan
Patent documentation 2: TOHKEMY 2007-44539
Patent documentation 3: TOHKEMY 2007-21168
Patent documentation 4: TOHKEMY 2006-95263
Summary of the invention
Therefore, major subjects of the present invention is, visually perception water, the liquid absorption of the various liquid of wet goods, position are provided, and does not use colour developing medicine etc., sanitary thin paper simple and easy and with low cost.
The present invention and the action effect that have solved above-mentioned problem are as follows.
Invention > described in < technical scheme 1
A sanitary thin paper, is characterized in that, by a plurality of, is laminated, and implemented embossing processing, surface patch is to take the white tablets that bleached pulp is main material, and at least the sheet of one deck is to contain unbleached pulp as the colored pellets of raw material, and the whiteness of two poor be more than 10.
Invention > described in < technical scheme 2
Sanitary thin paper described in technical scheme 1, the embossing top of sheet and the embossing bottom of the sheet of formation rear side that form face side are oppositely stacked.
Invention > described in < technical scheme 3
Sanitary thin paper described in technical scheme 1, the grammes per square metre of surface patch (level ground amount) is larger than take the grammes per square metre of the sheet that unbleached pulp is raw material.
Invention > described in < technical scheme 4
Sanitary thin paper described in technical scheme 1, form superficial layer white tablets every square meter weight (meter Ping) than be adjacent to contain unbleached pulp high as every square meter weight of the colored pellets of raw material.
Invention > described in < technical scheme 5
Sanitary thin paper described in technical scheme 1, it is thick as the paper of the colored pellets of raw material that the paper thickness rate of surface patch contains unbleached pulp.
According to the present invention, provide the sanitary thin paper of the imbibition that is visually easy to judge water, wet goods.
Accompanying drawing explanation
Fig. 1 is the cross section enlarged drawing of paper for kitchen X1 of the present invention.
Symbol description
1... surface patch, 2... back sheet, 3... bonding part, e... embossing, the top of t... embossing, the bottom of b... embossing, X1... paper for kitchen.
The specific embodiment
Below, in reference to accompanying drawing, embodiments of the present invention are carried out to following detailed description.Fig. 1 be take the cross section enlarged drawing of the paper for kitchen X1 that the paper for kitchen of the manner is example.
The paper for kitchen X1 of the manner is that a plurality of 1,2 of will consist of thin paper are laminated, and each sheet 1,2 has been carried out to embossing processing.In addition, a plurality of 1,2 can adopt layer structure respectively.In the present invention, so-called flaggy number and stacked number are the different meanings.
In paper for kitchen X1 of the present invention, make characteristically surface patch 1 adopt to take the white tablets that bleached pulp (also referred to as bleached pulp) is raw material, the sheet that the raw material that back sheet 2 adopts to contain unbleached pulp, semibleached pulp is made, and the difference of two whiteness based on JIS P 8148 is more than 10.Each sheet 1,2 is preferably used thin paper.In addition, in illustrated example, with 2 layers (2 sheets), form, but the invention is not restricted to this stacked number.
Here, in the present invention, the white tablets 1 that the bleached pulp of take is raw material is preferably more than 75 sheet of whiteness specifically.When this scope, produce the impression with clean feel, and the visuality of imbibition described later position is excellent.In addition, the opacity of this white tablets 1 is preferably 75～98%.With contain unbleached pulp when stacked as the colored pellets of raw material, can effectively cover this sheet.
As for forming the paper pulp raw material of white tablets 1, can enumerate and with adequate rate, coordinate the paper pulp such as LBKP (broad leaf tree kraft pulp), NBKP (coniferous tree kraft pulp).But in the present invention, raw material paper pulp is not limited to this.Can also utilize secondary stock etc.
In addition, although sheet 2 degree that unbleached pulp, semibleached pulp be raw material of take have difference, but be umbrinaceous colored pellets, the unbleached pulp using, semibleached pulp are not little by bleaching or bleaching load, so cheap, and the damage of formation fiber is few, aspect oil absorption, water imbibition, than take the sheet that bleached pulp is raw material excellent (following, to be called colored pellets 2 by take the sheet that unbleached pulp, semibleached pulp be raw material).In addition, in the present invention, this colored pellets is not limited to the sheet only being formed by unbleached pulp, semibleached pulp, suitably mixed bleach paper pulp.In a word, use unbleached pulp and reach required whiteness described later.The whiteness of this colored pellets 2 is less than 70.But, be preferably more than 35.When too low, clean feel reduces.Unbleached pulp can also be enumerated the paper pulp that has coordinated NULP, LUKP, HNLP, HLKP etc. with adequate rate.
In the present invention, by the poor white tablets 1 of stacked above-mentioned whiteness and colored pellets 2, when drying regime, colored pellets 2, by hidden state, is difficult to see colored pellets 2 by white tablets 1 to become Jie, and during user's first meeting, feeling has clean feel, in addition, when the purposes for contacting with food etc., owing to can using the face of this white tablets 1, therefore can cherish the sense of feeling at ease and use.
And, in paper for kitchen X1 of the present invention, for example with the face wiping liquid of white tablets 1 or on the face of white tablets, place fried thing and make it to absorb unnecessary when oily, liquid enters between the sheet fiber that forms white tablets 1, rear side becomes to see through and easily sees, and when this liquid also arrives colored pellets 2, the tone of colored pellets 2 thickens, so obviously there is imbibition part and deep or light poor, the contrast of the tone of imbibition part not, be situated between and can see this imbibition part by white tablets 1.By this effect, for paper for kitchen X1 of the present invention, can cherish clean feel, feel at ease to feel and use, and can visually observe the position of imbibition, general amount.In this respect, in the time of in the scope of the poor scope of the whiteness of above-mentioned each sheet and whiteness, can obtain preferred effect.
Here, in the present invention, poor about the outward appearance before above-mentioned imbibition, after imbibition, while dripping pure water 1cc from the face of white tablets, drips that part determined by the regulation of JIS P 8150
value be preferably 8.0≤Δ Eab≤20.0.Be less than at 8.0 o'clock, be difficult to see the variation of outward appearance.In addition, reach at 20.0 o'clock, need dark colored pellets, the possibility that damages the clean feel of paper for kitchen integral body increases.
In addition, in the present invention, and then poor about the outward appearance before imbibition, after imbibition, (this salad oil is restriction not from the face of white tablets, to drip salad oil, so long as just can the using of " day clear salad oil " Nisshin Oillio Group Co., Ltd.), during 1cc, drip part by the regulation of JIS P 8150 definite no problemly
value be preferably 7.0≤Δ Eab≤18.0.Reason is identical with the situation of above-mentioned dropping pure water.In addition, Δ is the poor of each L value, a value before and after water or oil droplet add time, b value.
On the other hand, in the present invention, the grammes per square metre of preferred white sheet 1 is larger than take the grammes per square metre of the colored pellets 2 that unbleached pulp is raw material.Like this, when dry, be difficult to be situated between and see colored pellets 2 by white tablets 1, have more clean feel, and can make liquid absorption increase.
Here, the concrete grammes per square metre of white tablets 1 of the present invention, colored pellets 2 is restriction not, if carry out illustration, white tablets 1 is 18～35g/m
2, colored pellets 2 is 14.5～25g/m
2left and right.While surpassing this scope, paper hardening, while being less than this scope, is difficult to the hand sense of touch that obtains absorbency, using while.In addition, grammes per square metre can be according to the purposes of sanitary thin paper, flaggy number, be for example suitably to adjust for lavatory paper or for tissue.In addition, grammes per square metre of the present invention obtains based on JIS P 8124.
And then for paper for kitchen X1 of the present invention, the wrinkle rate of preferred white sheet 1 is than colored pellets 2 height.By improving the wrinkle rate of white tablets 1, can obtain effect same when poor with above-mentioned setting grammes per square metre.Here, in the present invention, the wrinkle rate of each sheet can suitably determine in known range, and as preferred scope, during for paper for kitchen, the wrinkle rate of white tablets is 13～30%, the wrinkle rate of colored pellets is 15～35% left and right.The concrete number range of this wrinkle rate also can suitably change according to the purposes of sanitary thin paper.
In addition, so-called wrinkle rate of the present invention, can be calculated by (((peripheral speed of drying machine during paper processed)-(reel peripheral speed))/(peripheral speed of drying machine during paper processed) * 100).
In addition, in paper for kitchen of the present invention, the paper of the paper thickness rate colored pellets of white tablets is thick for well.
In addition,, as the thick assay method of paper, under the condition of JIS P 8111, use dial plate feeler (thickness tester) " PEACOCK G type " (the rugged making of tail is made) to measure.Specifically, confirm at piston and measure after there is no rubbish, dust etc. between platform piston not to be dropped to and measure on platform, the scale of above-mentioned dial plate feeler is moved and overlap with zero point, then, mention piston sample is placed on testing stand, make piston slow decreasing, read range finding now.Now, only place piston.In addition the thick mean value that carries out measuring for 10 times and obtain of getting of paper.
In addition,, for paper for kitchen of the present invention, to white tablets 1 and colored pellets 2, all given embossing e.More particularly, be situated between stacked integrated by embossing e, e for two 1,2.Particularly preferably so-called " nested (Nested) " form of mode is given in the embossing of paper for kitchen of the present invention,, as shown in Figure 1, the top t of the embossing e of the white tablets 1 of formation face side is oppositely stacked with the bottom b of the embossing e of the colored pellets 2 of formation rear side." nested " form of employing, in gap, the distance of two is short, therefore accessible by two of imbibitions, is situated between and can sees that by white tablets the effect of colored pellets is excellent.
But, can be also bonding what is called " top is to top (Tip toTip) " form between two 1,2 end face.In addition, the so-called top t here, refers to from the opposed end face with the outstanding protuberance of the mode approaching, so-called bottom, refer to from opposed with away from the bottom surface of the recess that caves in of mode.
The embossing processing that sheet is carried out can be by for example being undertaken by embossed processing sheet (face) between a pair of knurling rolls.Both of a pair of knurling rolls can be metallic roll, but preferably one is that resilient roller, the another one being formed by rubber etc. is to have the metallic roll that protuberance is given in embossing.The combination of preferred elastomeric roller and metallic roll is because the gap that can not produce roller adjusts problem, pile with the unfavorable condition of paper powder etc. on roller.
In addition, while giving embossing, a pair of knurling rolls can will carry out under the state of the knurling rolls heating of both or one.When knurling rolls are heated, embossing by distincter, clearly give.
Heated knurling rolls can be resilient roller, but are preferably metallic roll.This be due to, the pyroconductivity of metallic roll is good, can effectively bring into play the effect of being brought by heating, and, when metallic roll is heated, with the form corresponding with embossing shape, sheet or sheet bottom surface are given and heat, the embossing being endowed is distincter, clear.
At this moment, about the surface temperature of warm-up mill, no matter a pair of knurling rolls both be metallic roll, or the combination of resilient roller and metallic roll, or any one in resilient roller and metallic roll be heated etc., is 40～140 ℃, preferably 60～120 ℃, more preferably 80～100 ℃.When heating-up temperature is too low, possibly cannot gives full play to embossing and become distinct effect.In addition, when heating-up temperature is too high, energy loss, and may burn out sheet or the sheet bottom surface of sheet or sheet bottom surface, manufacture may hardening.
The embossing pressure that the giving of embossing e, e be take between a pair of knurling rolls as 5～30kg/cm, preferably 10～25kg/cm, more preferably the mode of 15～20kg/cm is carried out.When embossing pressure is too low, possibly cannot gives full play to embossing and become distinct effect.In addition, when embossing pressure is too high, processed body paper may be broken.
While making a pair of knurling rolls be the combination of resilient roller and metallic roll, resilient roller preferably its surperficial Shore hardness (Shore hardness) is 40～70.When Shore hardness is too low, when resilient roller surface is too soft, may rupture in sheet or sheet bottom surface.In addition, when Shore hardness is too high, when resilient roller surface is really up to the mark, may not produce embossing.
In addition, the concrete shape of embossing e, e is suitable design item.For example, make and make being shaped as square, making the embossing that is shaped as trapezoidal type of the recess between the top of adjacency of top t.The shape at top, except square, can also be rhombus, circle, ellipse, polygonal etc.
In addition, top t so long as each sheet is bonded with adhesive preferably smooth.The area of top t is 0.1～40mm
2, more preferably 0.25～4.0mm
2, 0.5～2.0mm particularly preferably
2.When the area of top t is too narrow, sheet cannot obtain sufficient bonding strength mutually.In addition, the area of top t is crossed when roomy, and the volume in the absorption space being produced by embossing reduces, so cannot obtain sufficient absorbability.
The depth D of embossing e, e... is also suitable design item, but more than being roughly 0.1mm, preferably more than 0.5mm, further preferably 1.3mm above for well.
By a plurality of embossing e, the embossed pattern that e... forms is also suitable design item, can consider taste, functional suitable employing known embossed pattern in the past.
Here, about the intensity of the paper for kitchen X1 of the manner, the moistening TENSILE STRENGTH that makes transverse direction is below the moistening TENSILE STRENGTH of longitudinal direction (machine direction), and preferably to make the moistening TENSILE STRENGTH of this transverse direction be more than 120cN, more preferably more than 150cN.In general, current commercially available grammes per square metre 10～50g/m
2paper for kitchen X1 be mostly that the moistening TENSILE STRENGTH of transverse direction is the paper for kitchen of about 100cN.But, in the manner, by improving the moistening TENSILE STRENGTH of transverse direction, even in having absorbed fried food, fried thing etc. when contained moisture, oil content, can be not destroyed by embossing distinct, that clearly give yet, can not cling yet, adhere to fried food, fried thing etc.
In order to improve the moistening TENSILE STRENGTH of the transverse direction of paper for kitchen X1, such as adopting moistening paper power reinforcing agents such as adding surfactant in raw material paper pulp, select the kind of raw material paper pulp or the making beating (beating) of adjustment raw material paper pulp etc., improve the methods such as set of moistening paper power reinforcing agent.But, while excessively improving the moistening TENSILE STRENGTH of transverse direction, become the key element of the flexibility etc. that hinders sheet, so the moistening TENSILE STRENGTH of transverse direction is preferably below 500cN, more preferably below 350cN.On the other hand, the moistening TENSILE STRENGTH of longitudinal direction can suitably be selected, but is generally the more than 1 times of moistening TENSILE STRENGTH of transverse direction.In addition, above-mentioned moistening TENSILE STRENGTH is measured with actual occupation mode, for example, while being the product of 2 layers of structure, just measures the moistening TENSILE STRENGTH in 2 layers of structure.
It should be noted that aforesaid way take paper for kitchen and be illustrated as example, but the present invention is not limited to this paper for kitchen.The known technology such as technology are given in thin paper manufacturing technology based on known, the adjustment of grammes per square metre etc., embossing, can make sanitary tissue of the present invention, lavatory paper, tissue.
Embodiment
Then,, for paper for kitchen X1 of the present invention and its comparative example, the visuality of the water suction position during to water suction is tested, and evaluates.
Test drips 1cc pure water in white tablets side, take following aspect as metewand, as the sensory evaluation of carrying out overall merit,, whether can visually see the colored pellets that is laminated in the back side, and whether can clearly see can see time, with drip before variation wonderful works metewand whether.
Sheet in each example of using is 2 layers of structure, and embossing is " nested " form.The measured value of whiteness etc. and result of the test are shown in following table 1 in the lump.
Table 1
Result by table 1 can be recognized, paper for kitchen of the present invention, and the visuality of water suction position is excellent.
As mentioned above, according to the present invention, the paper for kitchen of the visuality excellence of imbibition position while can be provided in imbibition.
Claims (5)
1. a sanitary thin paper, it is characterized in that, by a plurality of, be laminated, and implemented embossing processing, surface patch is to take the white tablets that opacity that bleached pulp is main material is 75～98%, at least the sheet of one deck is to contain unbleached pulp as the colored pellets of raw material, and the whiteness of described colored pellets is more than 35 and be less than 70, and the whiteness of described white tablets and described colored pellets poor be more than 10.
2. sanitary thin paper according to claim 1, the embossing top of described white tablets and the embossing of described colored pellets bottom are oppositely stacked.
3. sanitary thin paper according to claim 1, the grammes per square metre of surface patch is larger as the grammes per square metre of the colored pellets of raw material than containing unbleached pulp.
4. sanitary thin paper according to claim 1, form that every square meter weight ratio of the white tablets of superficial layer is adjacent to contain unbleached pulp high as every square meter weight of the colored pellets of raw material.
5. sanitary thin paper according to claim 1, it is thick as the paper thickness of the colored pellets of raw material that the paper Thickness Ratio of surface patch contains unbleached pulp.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-047375 | 2009-02-27 | ||
| JP2009047375A JP5305986B2 (en) | 2009-02-27 | 2009-02-27 | Sanitary tissue paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101817242A CN101817242A (en) | 2010-09-01 |
| CN101817242B true CN101817242B (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010124859.5A Active CN101817242B (en) | 2009-02-27 | 2010-02-26 | Sanitary tissue paper |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5305986B2 (en) |
| KR (1) | KR101673596B1 (en) |
| CN (1) | CN101817242B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101130670B1 (en) | 2009-11-23 | 2012-04-02 | 김종욱 | Hygienic toilet paper |
| GR1008157B (en) * | 2011-11-25 | 2014-04-02 | Πλαστικα Ελλαδος Αβεε, | Dual-use and dual-colour kitchen paper roll |
| GR1008158B (en) * | 2011-11-25 | 2014-04-02 | Πλαστικα Ελλαδος Αβεε, | Dual-colour sanitary paper roll |
| CN102578945A (en) * | 2012-02-21 | 2012-07-18 | 金红叶纸业集团有限公司 | Multi-layer living paper |
| CN103835188A (en) * | 2012-11-21 | 2014-06-04 | 上海东冠纸业有限公司 | High performance S type embossed kitchen paper |
| JP6186482B1 (en) * | 2016-09-23 | 2017-08-23 | 日本製紙クレシア株式会社 | Toilet roll |
| JP6461448B1 (en) * | 2017-03-02 | 2019-01-30 | 大王製紙株式会社 | Sanitary tissue paper |
| CN108867180B (en) * | 2017-05-16 | 2022-10-04 | 金红叶纸业(南通)有限公司 | Household paper and preparation method thereof |
| JP7138420B2 (en) * | 2017-09-29 | 2022-09-16 | 大王製紙株式会社 | Nonwoven duster and method for producing nonwoven duster |
| CN109208386A (en) * | 2018-09-11 | 2019-01-15 | 重庆龙璟纸业有限公司 | A kind of true qualities bamboo pulp paper for kitchen and preparation method thereof |
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| CN1072229A (en) * | 1991-11-13 | 1993-05-19 | 郭凯 | Compound paper capable of writing with water |
| CN1242812A (en) * | 1996-11-14 | 2000-01-26 | 普罗克特和甘保尔公司 | Paper web having thinner continuous network region and discrete thinner regions in plane of continuous network region |
| CN1969089A (en) * | 2004-05-06 | 2007-05-23 | 宝洁公司 | Patterned fibrous structures |
| CN101267756A (en) * | 2005-09-21 | 2008-09-17 | 大王制纸株式会社 | Hygienic tissue paper |
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| JP2010202990A (en) | 2010-09-16 |
| CN101817242A (en) | 2010-09-01 |
| JP5305986B2 (en) | 2013-10-02 |
| KR20100098315A (en) | 2010-09-06 |
| KR101673596B1 (en) | 2016-11-07 |
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