CN103015267B - The using method of paper grade (stock) softener - Google Patents
The using method of paper grade (stock) softener Download PDFInfo
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- CN103015267B CN103015267B CN201210548335.8A CN201210548335A CN103015267B CN 103015267 B CN103015267 B CN 103015267B CN 201210548335 A CN201210548335 A CN 201210548335A CN 103015267 B CN103015267 B CN 103015267B
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Abstract
A kind of using method of paper grade (stock) softener, it is applicable to have two layers and above head box and utilizes forming web shaping and utilize the toilet paper machine of cylinder dried, this head box forms at least two slurry lines at papermaking green end, this at least two slurries line forms respective pulp layer in stacked mode and finally jointly molds a paper on forming web, and wherein softener is added in the slurry line of the pulp layer finally directly contacted with dryer surface.The present invention proposes a kind of using method of new paper grade (stock) softener, when can ensure paper pliability, it is less that paper strength loses.
Description
Technical field
The present invention relates to a kind of using method of paper grade (stock) softener.
Background technology
Along with the raising of people's living standard, the demand of people to toilet paper starts the trend presenting multifunction, such as requires extremely strong water absorbing capacity for paper for kitchen and tissue, then requires extremely soft sense of touch etc. for some high-end facial tissue.Existing softener normally directly adds at papermaking green end, and softener and pulp fiber are combined early.Add at green end the paper that softener is ferreted out and can bring soft sense of touch to people, but its intensity also can reduce, so the acquisition of pliability is be reduced to cost with intensity substantially.
Summary of the invention
In view of this, be necessary the using method that a kind of paper grade (stock) softener is provided, when it can ensure that paper pliability is identical, loss of strength smaller.
A kind of using method of paper grade (stock) softener, it is applicable to have two layers and above head box and utilizes forming web shaping and utilize the toilet paper machine of cylinder dried, this head box forms at least two slurry lines at papermaking green end, this at least two slurries line forms respective pulp layer in stacked mode and finally jointly molds a paper on forming web, and wherein softener is added in the slurry line of the pulp layer finally directly contacted with dryer surface.
The pulp layer that paper contacts with dryer surface is generally that user's direct skin contact uses, the present invention proposes a kind of using method of new paper grade (stock) softener, softener is added in the pulp layer that paper contacts with dryer surface, can ensure the pliability of the paper surface contacting user's skin, other pulp layer does not add the intensity that softener then ensures paper entirety.So, when ensureing paper pliability, it is smaller that paper strength loses.
Detailed description of the invention
The using method of paper grade (stock) softener of the present invention, it is applicable to the toilet paper machine with multilayer head box.
For the toilet paper machine with two layers of head box, this head box is formed with net side slurry line and blanket side slurry line at papermaking green end, net side slurry line and blanket side slurry line difference groove, pressurized screen, Tou Xiangdeng workshop section step before pulping groove, draining groove, slurry storage tank, mixing channel, machine successively, then on forming web, the first pulp layer and the second pulp layer is obtained respectively, first pulp layer and the second pulp layer mold a paper jointly, and this paper needs to carry out drying process through drying cylinder again.Second pulp layer is the one deck directly contacted with forming web, and the slurry that the second pulp layer starches line by blanket side provides; First pulp layer is layered in above the second pulp layer, and the first pulp layer is provided by the slurry netting side slurry line, and this first pulp layer is the layer finally contacted with dryer surface.Paper grade (stock) softener of the present invention is added in the slurry line of net side, does not then add softener, be also namely added in the slurry line of the pulp layer finally directly contacted with dryer surface in the slurry line of blanket side.The addition of softener accounts for the 0.01%-20% of total oven dry stock quality of net side slurry line and blanket side slurry line.
The pulp layer (i.e. the first pulp layer) that paper contacts with dryer surface is generally that user's direct skin contact uses, owing to being added with softener in this first pulp layer, can ensure the pliability of the paper contacting user's skin, the second pulp layer does not add the intensity that softener ensures paper entirety.
The slurry kind of net side slurry line can be any one or a few the mixture in long fine slurry, fluff pulp or waste stuff, the interpolation point of softener can be from any one position to the end between case of pulping groove, and namely adding point can be any position before pulping groove, draining groove, pulp storage tank, mixing channel, machine in groove and pressurized screen entrance.The slurry kind of blanket side slurry line can be any one or a few the mixture in long fine slurry, fluff pulp or waste stuff.In addition, the type of stock of netting side slurry line and blanket side slurry line is more diversified: as mechanical pulp, chemical pulp, chemi-mechanical pulp, pure wood pulp, non-wood pulp, reclaim the various paper making pulps kinds such as slurry.
For the toilet paper machine of two layers of head box, the preferred embodiment of the present invention is: the first pulp layer (finally contact with Yankee cylinder surface layer) is provided by the slurry netting side and starch line, the slurry of net side slurry line is the fluff pulp of pure wood pulp, softener is added in the slurry of net side slurry line, is more preferably added in the pulping groove of net side slurry line; The slurry that second pulp layer starches line by blanket side provides, and the slurry of blanket side slurry line is the long fine slurry of pure wood pulp.This fluff pulp can from mechanical pulp, chemical pulp, chemi-mechanical pulp, and this long fine slurry can from mechanical pulp, chemical pulp, chemi-mechanical pulp.
For the toilet paper machine with three layers and above head box, head box is formed with at least three slurry lines at papermaking green end, this at least three slurries line difference groove, pressurized screen, Tou Xiangdeng workshop section step before pulping groove, draining groove, slurry storage tank, mixing channel, machine successively, then on forming web, obtain stacked multiple pulp layer, the plurality of pulp layer molds a paper jointly, and this paper needs to carry out drying process through drying cylinder again.Wherein softener is added in the slurry line of the pulp layer (namely from forming web pulp layer farthest) finally directly contacted with dryer surface.
The pulp layer that paper contacts with dryer surface is generally that user's direct skin contact uses, so, softener is added with due in the pulp layer that paper contacts with dryer surface, can ensure the pliability of the paper contacting user's skin, other pulp layer does not add the intensity that softener then ensures paper entirety.
For the toilet paper machine with three layers and above head box, preferably, softener can be added on respectively the slurry line of the pulp layer directly contacted with forming web and starch in line from two of forming web pulp layer farthest (pulp layer namely finally directly contacted with dryer surface).So, be all added with softener in the pulp layer on the most top layer of two, the paper molded, the pliability of the paper contacting user's skin can be ensured, be not added with softener in the pulp layer in intermediate layer, the intensity of paper entirety can be ensured.
The addition of above-mentioned softener accounts for the 0.01%-20% of total oven dry stock quality of all slurry lines.
The kind of paper grade (stock) softener of the present invention comprises quaternary ammonium compound class, quaternized protein compounds class, polysiloxanes quaternary amines, the use principle of those softeners positive charge mainly on its strand and the negative electrical charge generation charge adsorption effect on fiber; In addition because the structure of softener molecule is long-chain shape, so the effect of obstruct can be played to the Hydrogenbond between fiber, Hydrogen bonding forces between fiber is weakened, so it had both been the equal of just the inhibitor of Hydrogenbond, it is again the debonding agent between fiber simultaneously, just because of this, add softener during copy paper at wet end, the paper be ferreted out can bring softness, comfortable sensation to people.
Softener of the present invention is cationic quaternary ammonium compound, and the structure of this quaternary ammonium compound can be (R
1)
4-m-N
+-[R
2]
mx
-, in formula, m is 1-3; Each R
1for C
1-C
8alkyl, hydroxyalkyl, the alkyl of alkyl or replacement, Alkoxylated groups, benzyl or its mixture; Each R
2for C
9-C
41alkyl, hydroxyalkyl, the alkyl of alkyl or replacement, Alkoxylated groups, benzyl or its mixture; X
-for the anion that any softener is compatible.Described quaternary ammonium compound is preferably dialkyl dimethyl ammonium salt.Described dialkyl dimethyl ammonium salt is at least one in dialkyl dimethyl ammonium chloride, two tallow base dimethyl ammonium methyl sulfate, two (hydrogenation) tallow base alkyl dimethyl ammonium chloride.
In addition, the structure of softener of the present invention can also be (R
1)
4-m-N
+-[(CH
2)
n-Y-R
2]
mx
-, in formula, each Y is-O-(O) C-or-C (O)-O; M is 1-3; N is 1-4; Each R
1substituting group is short chain C
1-C
6alkyl, hydroxyalkyl, alkyl, benzyl or its mixture; Each R
2substituting group is long-chain C
11-C
23alkyl or the hydrocarbyl substituent of replacement, and X
-for the anion that any softener is compatible.
Below by embodiment, the present invention is specifically described.
Embodiment
0 is respectively according to the ratio of softener and total oven dry stock, 0.2%, 0.4%, 0.6% adds softener (a kind of cationic quaternary ammonium compound respectively, trade name is the graceful B699 of Bark) be in the short fiber of 1.2% in concentration, stir 2-60 minute, then the water in short fiber all filters, short fiber is rinsed again with clear water, then the concentration that the water adding new identical weight again adds surplus be again 1.2% long fibre mix obtained four groups of slurries, handsheet, wherein in four groups of slurries, long mass ratio that is fine and short fiber is 2:8.
Note: this is laboratory simulation, short fiber is equivalent to net side slurry line, long fibre is equivalent to blanket side slurry line, softener has first been added in short fiber, softener and short fiber is allowed fully to react, and then the water in short fiber is filtered, object is exactly remove unnecessary unreacted softener molecule, and then add long fine, softener molecule combines with short fiber in advance, so when long fibre joins in short fiber, softener molecule can not mix with long fibre again, so the long fine intensity to paper contribution can not be affected, the contribution of short fiber to paper pliability then can be increased after softener is combined with short fiber.This situation is extrapolated to and paper machine is just equivalent to softener and is only added in the slurry line of net side, and blanket side slurry line does not then add softener.
Comparative example
Together with long fine and short fiber concentration being 1.2% fits over according to the ratio of mass ratio 2:8, by fibers mixture evenly obtained slurry, 0 is respectively according to the ratio of softener and total oven dry stock, 0.2%, 0.4%, 0.6% adds softener obtained four groups of slurries in slurry respectively, and four groups of slurries stir 2-60 minute, handsheet respectively.
Note: this is laboratory simulation, has been added in long fibre and short fiber by softener, this situation is extrapolated to and paper machine is just equivalent to net side slurry line and blanket side slurry line and all has and add softener.
The test result of handsheet intensity is as follows:
Note: the fracture length of handsheet is less, illustrate that the intensity of handsheet is less, handsheet is more soft.
As can be seen from the above table: when pliability substantially close to comparative example handsheet of the pliability of embodiment handsheet, and the pliability of embodiment handsheet reaches standard-required; The fracture length loss of embodiment handsheet is significantly lost lower than the fracture length of comparative example handsheet, illustrates that the loss of strength of embodiment handsheet is significantly lower than the loss of strength of comparative example handsheet.
The new softener occupation mode that the present invention relates to only softener is added in the slurry line of net side, first guarantee that softener and staple fibre combine firmly, pliability needed for super soft toilet paper is provided, and do not add softener in the slurry line of blanket side, so just can meet the requirement of strength needed for super soft toilet paper.This mode compared with prior art, can reduce the loss of strength of paper when guarantee pliability is constant.
In addition, those skilled in the art also can make various amendments in other form and details, interpolation and replacement in the claims in the present invention scope of disclosure and spirit.Certainly, the changes such as these various amendments made according to the present invention's spirit, interpolation and replacement, all should be included within the present invention's scope required for protection.
Claims (4)
1. the using method of a paper grade (stock) softener, it is applicable to have three layers and above head box and utilizes forming web shaping and utilize the toilet paper machine of cylinder dried, this head box forms at least three slurry lines at papermaking green end, this at least three slurries line forms respective pulp layer in stacked mode and finally jointly molds a paper on forming web, it is characterized in that: wherein in the softener slurry line that is added on the pulp layer that forming web directly contacts and the slurry line of pulp layer that finally directly contacts with dryer surface, in the pulp layer in intermediate layer, do not add softener; The addition of this softener accounts for 0.6% of total oven dry stock quality of all slurry lines, and in all slurry lines, long total mass ratio that is fine and short fiber is 2:8; This softener is quaternary ammonium compound, and the structure of this quaternary ammonium compound is (R
1)
4-m-N
+-[R
2]
mx
-, in formula, m is 1-3; Each R
1for C
1-C
8alkyl, hydroxyalkyl, the alkyl of alkyl or replacement, Alkoxylated groups, benzyl or its mixture; Each R
2for C
9-C
41alkyl, hydroxyalkyl, the alkyl of alkyl or replacement, Alkoxylated groups, benzyl or its mixture; X
-for the anion that any softener is compatible; Workshop section's step of groove, pressurized screen, head case before pulping groove, draining groove, slurry storage tank, mixing channel, machine successively distinguished by each slurry line, and the interpolation point of this softener is pulping groove;
This quaternary ammonium compound is dialkyl dimethyl ammonium salt; Described dialkyl dimethyl ammonium salt is one or more the mixing in dialkyl dimethyl ammonium chloride, two tallow base dimethyl ammonium methyl sulfate, two (hydrogenation) tallow base alkyl dimethyl ammonium chloride.
2. the using method of paper grade (stock) softener as claimed in claim 1, it is characterized in that: for the toilet paper machine with two layers of head box, papermaking green end includes net side slurry line and blanket side slurry line, the pulp layer of blanket side slurry line is the layer directly contacted with forming web, the pulp layer of net side slurry line is the layer finally directly contacted with dryer surface, and this softener is added in the slurry line of net side.
3. the using method of paper grade (stock) softener as claimed in claim 2, it is characterized in that: the slurry kind of this net side slurry line is any one or a few the mixture in long fine slurry, fluff pulp or waste stuff, the slurry kind of this blanket side slurry line is any one or a few the mixture in long fine slurry, fluff pulp or waste stuff.
4. the using method of paper grade (stock) softener as claimed in claim 3, is characterized in that: the slurry of this net side slurry line is the fluff pulp of pure wood pulp, and the slurry of this blanket side slurry line is the long fine slurry of pure wood pulp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210548335.8A CN103015267B (en) | 2012-12-17 | 2012-12-17 | The using method of paper grade (stock) softener |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210548335.8A CN103015267B (en) | 2012-12-17 | 2012-12-17 | The using method of paper grade (stock) softener |
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| CN103015267A CN103015267A (en) | 2013-04-03 |
| CN103015267B true CN103015267B (en) | 2016-03-02 |
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ID=47964331
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210548335.8A Active CN103015267B (en) | 2012-12-17 | 2012-12-17 | The using method of paper grade (stock) softener |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088863B (en) * | 2015-07-14 | 2017-09-29 | 山东太阳生活用纸有限公司 | A kind of paper for daily use and manufacturing process |
| CN108978336B (en) * | 2018-08-08 | 2021-12-21 | 彭甜甜 | Softening agent for papermaking and preparation method thereof |
| CN111636229A (en) * | 2020-05-21 | 2020-09-08 | 山东太阳生活用纸有限公司 | Double-layer roll toilet paper and preparation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5552020A (en) * | 1995-07-21 | 1996-09-03 | Kimberly-Clark Corporation | Tissue products containing softeners and silicone glycol |
| US5730839A (en) * | 1995-07-21 | 1998-03-24 | Kimberly-Clark Worldwide, Inc. | Method of creping tissue webs containing a softener using a closed creping pocket |
| US6241850B1 (en) * | 1999-06-16 | 2001-06-05 | The Procter & Gamble Company | Soft tissue product exhibiting improved lint resistance and process for making |
| FI115234B (en) * | 2003-09-24 | 2005-03-31 | Metso Paper Inc | A process for making a laminated paper or board web |
| DE102008000778A1 (en) * | 2008-03-20 | 2009-09-24 | Voith Patent Gmbh | Headbox for a paper or board machine |
| US8679295B2 (en) * | 2011-04-08 | 2014-03-25 | Kimberly-Clark Worldwide, Inc. | Soft creped tissue |
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