CN103142176B - Household paper and manufacturing method thereof - Google Patents
Household paper and manufacturing method thereof Download PDFInfo
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- CN103142176B CN103142176B CN201310060333.9A CN201310060333A CN103142176B CN 103142176 B CN103142176 B CN 103142176B CN 201310060333 A CN201310060333 A CN 201310060333A CN 103142176 B CN103142176 B CN 103142176B
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Abstract
The invention provides household paper, which is simultaneously added with a softening agent and nanometer microcrystalline cellulose, as well as a manufacturing method of the household paper. The method comprises the following steps: providing a sizing material; adding the nanometer microcrystalline cellulose into the sizing material; and manufacturing the paper to be formed and transferring the softening agent onto the surface of the paper, or adding the softening agent into the sizing material and then manufacturing the paper to be formed. The household paper provided by the invention has advantages of high intensity and better flexibility by simultaneously adding the softening agent and the nanometer microcrystalline cellulose.
Description
Technical field
The present invention relates to one way of life paper using and manufacture method thereof.
Background technology
The paper for daily uses such as face tissue, toilet paper, napkin paper, paper for kitchen, tissue are the required consumer goods of the requisite life of Modern consumer crowd.Along with growth in the living standard, people require more and more higher to the pliability of paper for daily use, and the requirement especially for the pliability of the paper for daily use with contact human skin is higher.
The object of the pliability of paper using of making the life better is reached at present mainly through adding softening agent.The addition manner of softening agent mainly contains two kinds.One is at green end, such as, manufactures paper with pulp into body paper after adding softening agent in paper pulp.Another applies a certain amount of softening agent by rear end coating method on the surface in original paper.But no matter adopt which kind of mode above-mentioned to add softening agent, all can cause the reduction of final obtained tissue paper anti-tensile pulling force, bursting strength, especially paper anti-tensile pulling force reduces a lot.
The intensity of the original paper of paper for daily use can promote by strengthening defibrination power and adding the modes such as drying strengthening agent.But the too high meeting of defibrination power causes the excessive wire-dividing broom purification of fiber, so that body paper rough surface, also namely pliability is bad.On the other hand, exceed a certain amount of softening agent if added in a kind of body paper, even if use drying strengthening agent also not make up the intensity of body paper loss.That is, in existing technology, the high strength of paper for daily use and high-flexibility are two performances being difficult to get both, and promote one of them and another one can be caused to be deteriorated.How to produce have intensity satisfactory while there is again the paper for daily use of good pliability, be the problem needing in face of the in the industry cycle personnel of putting to capture.
Summary of the invention
In view of this, be necessary to provide one way of life paper using, it all has good performance in pliability and intensity.
One way of life paper using, is added with softening agent and nano micro crystal cellulose in this paper for daily use simultaneously.
The manufacture method of one way of life paper using, comprises the steps: to provide slurry; Add nano micro crystal cellulose in the slurry; And the shaping paper softening agent is transferred to paper surface of manufacturing paper with pulp, or add softening agent in the slurry and to manufacture paper with pulp again shaping paper.
Paper for daily use provided by the invention both had high strength, had again good softness, and simple for the manufacture of the method step of this paper for daily use, can realize under existing appointed condition completely.
Below in conjunction with specific embodiment, the invention will be further described.
Detailed description of the invention
The present invention relates to the paper for daily use that a kind of existing high strength is soft again, and the manufacture method of this paper for daily use.
With the addition of nano micro crystal cellulose and softening agent in paper for daily use provided by the invention simultaneously.
Nano micro crystal cellulose (the nanocrystalline cellulose that the present invention is used, NCC) can be cationic or anionic, it is prepared by the chemical pulp from timber or agricultural fibre, amorphous area is removed by acidolysis, then the fibril of nano-scale is produced, in latter stage, by sonication or through high shear microfluidizer, in water slurry, produce each whisker or crystallite and stabilisation.The concrete preparation of nano micro crystal cellulose can with reference to pertinent literature, and in some documents, nano micro crystal cellulose is otherwise known as cellulose nano microcrystalline, cellulose nano-fibrous or cellulose whiskers etc.
The softening agent that the present invention is used, mainly contains cationic surfactant, anion surfactant and non-ionic surface active agent.Cationic surfactant can be as quaternary ammonium salt and amine compounds.Anion surfactant can be as alkyl phosphate or salt, alkyl sulfate or salt, alkylsulfonate etc.Non-ionic surface active agent can be as polyoxyethylene-type and polyol type compound.
The softening agent of usual cationic surfactant type is maximum for the action effect reducing paper fibre mantle friction factor, therefore, softening agent preferred cationic surfactant of the present invention, as two alkylamide imidazoline quaternary ammonium salt, TEA ester quat, bisamide quaternary ammonium salt etc.
The softening agent that the present invention uses can add separately wherein a kind of according to result of use, also can mix together by polytype.
The flow process of the paper for daily use manufacture method that one embodiment of the invention provides is as follows.First slurry needed for papermaking is provided, then in slurry, adds nano micro crystal cellulose and softening agent at papermaking green end.Add nano micro crystal cellulose and softening agent, formation tissue paper of manufacturing paper with pulp after mixing with slurry.
The nano micro crystal cellulose that the present invention uses is added on papermaking green end, and specified place can be groove before loose stock tank, mixing channel, machine.In order to make nano micro crystal cellulose fully disperse in the slurry, the present invention preferably adds nano micro crystal cellulose in loose stock tank.Further, with the form of nano micro crystal cellulose suspension be added in loose stock tank be more conducive to dispersion mixing nano micro crystal cellulose.
The softening agent that the present invention uses can be selected to add papermaking green end to together with nano micro crystal cellulose, and specified place can be groove before loose stock tank, mixing channel or machine.The present invention preferably adds softening agent in loose stock tank.
Slurry therewith of the present invention can be sulphate chemical paper pulp (coniferous tree or broad leaf tree are through bleaching or the kraft pulp etc. without bleaching), mechanical pulp (ground wood pulp, thermomechanical pulps, CTMP etc.), de inked pulp (old newspaper, old magazine paper etc.) etc.These starting pulps can be used alone, or used in combination with arbitrary proportion.The present invention preferably selects sulphate chemical paper pulp.
The interpolation weight of nano micro crystal cellulose is less than or equal to 20% of the weight of paper for daily use over dry slurry used, and the interpolation weight of preferred nano micro crystal cellulose is between the 0.2%-5% of the weight of paper for daily use over dry slurry used.
Softening agent adds weight and is less than or equal to 5% of the weight of paper for daily use over dry slurry used, and preferred softening agent adds weight between the 0.1%-3% of the weight of paper for daily use over dry slurry used.
Nano micro crystal cellulose suspension concentration scope, between 0.01-50%, can be 12.5% in one embodiment.Loose stock tank concentration controls between 2%-5%.
Further, in order to give tissue paper more diversified function, can also before machine other auxiliary agents such as selective interpolation bacteriostatic agent, wet strength agent, drying strengthening agent in groove.
Further, preferred compositions of the present invention uses cationic surface active agent class softening agent thing and anion nano micro crystal cellulose.
In some other embodiments, also can add nano micro crystal cellulose suspension at papermaking green end to manufacture paper with pulp and formed after tissue paper, rear end softening agent is transferred to uniformly in the mode of coating, applying glue, printing etc. shaping after paper surface form paper for daily use of the present invention.Can, by determining the parameters such as the speed of a motor vehicle of paper machine operation, the usage ratio of the addition of softening agent and nano micro crystal cellulose and starting pulps be made to reach given requirements.
List in following table and in the lab softening agent and nano micro crystal cellulose (NCC) to be added in slurry after fully mixing through the pliability of the paper for daily use of the different comparative examples of manual gained of manufacturing paper with pulp and tensile strength.The numerical value of pliability and tensile strength all records with the method specified in GB, and wherein the numerical value of pliability larger expression flexibility is poorer, and the larger expression tensile strength of numerical value of tensile strength is better.The slurry that paper for daily use in each comparative example adopts is sulphate chemical paper pulp, and long weight ratio that is fine and short fiber is 1:4, loose slurry revolution 30000r, long fine defibrination revolution 2500r, short fiber defibrination revolution 2000r, squeeze pressure 2.1kg/m
2, squeezing time 15min, bake out temperature 95 ° of C.The addition of softening agent and nano micro crystal cellulose all represents with the percentage by weight of used over dry slurry.Such as, in comparative example B, the addition of softening agent is 0.1% of over dry slurry weight.The softening agent used in these comparative examples is the dialkyl dimethyl ammonium chloride of cationic active agent type, and nano micro crystal cellulose is anionic.
Listed each comparative example A in following table, handsheet made by B, C, D, E, F, G, except softening agent is different with the addition of nano micro crystal cellulose, other manufacturing conditions, parameter are all identical.
As can be seen from comparing of comparative example A and comparative example B, be used alone softening agent, the tensile strength of handsheet reduces too many, causes intensity too poor.
As can be seen from comparing of comparative example A and comparative example C, be used alone nano micro crystal cellulose, though to a certain degree can promote the tensile strength of handsheet, the softness of handsheet is not fine.
As can be seen from comparing of comparative example D group and comparative example B, the paper that with the addition of nano micro crystal cellulose and softening agent has remarkable lifting relative to the paper strength only adding softening agent, but pliability does not almost decline.
As can be seen from comparing of comparative example D and comparative example C, the paper that with the addition of nano micro crystal cellulose and softening agent has significant lifting relative to the paper pliability of only adding nano micro crystal cellulose, but intensity does not almost decline.
In addition, as can be seen from comparing of comparative example A and comparative example D, there is no mutual inhibitory action between nano micro crystal cellulose and softening agent, but play a synergy, the pliability of paper and intensity are promoted all to some extent.
From the contrast of comparative example A and comparative example D, and the contrast of comparative example A and comparative example E can be seen, when softening agent use amount is 0.1%, when the use amount of nano micro crystal cellulose becomes 0.2% from 0.1%, the pliability of handsheet does not almost change, but strength enhancing is comparatively obvious.Therefore softening agent use amount is 0.1%, and nano micro crystal cellulose is 0.2%, and chemical drug uses more efficient.
Find out from comparative example F with comparing of comparative example G, the pliability of handsheet and intensity have been tending towards constant along with the addition of softening agent and nano micro crystal cellulose is increased to 5% and 20%.
The softness main distinction of tissue paper is in the characteristic of fiber itself and interfibrous in conjunction with tightness degree, and the situation of wrinkle time wrinkling.The Main Function of softening agent makes fiber plastification and retains air more, to reduce the combination between fiber, reach improve pliability object, thus will bring certain loss of strength, but the bulk of paper can be improved fully.Because softening agent can change plasticity and the adhesion of fiber, if thus add softening agent at papermaking green end, high wrinkling uniformity can be beneficial to, be beneficial to the percentage elongation increasing paper simultaneously, feel is improved.
Nano micro crystal cellulose essence is fiber, but have huge specific area relative to general fibre, the hydroxyl that surface exposure is abundant and carboxyl.Nano micro crystal cellulose is added in paper, and can form a large amount of hydrogen bonds with general fibre, improve the adhesion between paper fibre, namely paper strength increases.
Nano micro crystal cellulose on the one hand can fraction and softening agent bonding, and another aspect forms a large amount of hydrogen bond with general fibre.Therefore softening agent indirectly produces bonding with the general fibre in paper by nano micro crystal cellulose, this reduces the reduction of the paper strength that softening agent brings.
Therefore by adding the paper for daily use of the present invention of nano micro crystal cellulose and softening agent acquisition simultaneously, both there is higher intensity, there is again good softness.Consumer, when using such tissue paper scrape skin, had both had soft feel, can avoid again occurring because of insufficient strength, and made paper scrap be pasted onto phenomenon on skin.In addition, high strength provided by the invention is held concurrently soft paper for daily use and a large amount of method of producing this paper for daily use, without the need to using extra production equipment, just can realize under original working condition, being suitable for popularizing.
Claims (9)
1. one way of life paper using, it is characterized in that: in this paper for daily use, be added with softening agent and nano micro crystal cellulose simultaneously, described softening agent is cationic surfactant, anion surfactant or non-ionic surface active agent, and wherein said cationic surfactant is amine compounds.
2. paper for daily use as claimed in claim 1, is characterized in that: described nano micro crystal cellulose is cation nanometer microcrystalline cellulose or anion nano micro crystal cellulose.
3. paper for daily use as claimed in claim 1, it is characterized in that: described softening agent is cationic surface active agent, described nano micro crystal cellulose is anion nano micro crystal cellulose.
4. paper for daily use as claimed in claim 1, it is characterized in that: the interpolation weight of described nano micro crystal cellulose is less than or equal to 20% of the weight of paper for daily use oven dry stock used, described softening agent adds weight and is less than or equal to 5% of the weight of paper for daily use oven dry stock used.
5. paper for daily use as claimed in claim 1, it is characterized in that: the interpolation weight of described nano micro crystal cellulose is between the 0.2%-5% of the weight of paper for daily use over dry slurry used, it is between the 0.1%-3% of the weight of paper for daily use over dry slurry used that described softening agent adds weight.
6. paper for daily use as claimed in claim 1, is characterized in that: be also added with bacteriostatic agent, wet strength agent, drying strengthening agent or their mixture in described paper for daily use.
7. the manufacture method of one way of life paper using, comprises the steps:
Slurry is provided;
Add nano micro crystal cellulose in the slurry; And
To manufacture paper with pulp shaping paper softening agent is transferred to paper surface, or add softening agent in the slurry to manufacture paper with pulp again shaping paper, described softening agent is cationic surfactant, anion surfactant or non-ionic surface active agent, and wherein said cationic surfactant is amine compounds.
8. the manufacture method of paper for daily use as claimed in claim 7, is characterized in that: nano micro crystal cellulose adds in slurry with the form of suspension.
9. the manufacture method of paper for daily use as claimed in claim 7, it is characterized in that: the interpolation weight of described nano micro crystal cellulose is less than or equal to 20% of the weight of paper for daily use oven dry stock used, described softening agent adds weight and is less than or equal to 5% of the weight of paper for daily use oven dry stock used.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310060333.9A CN103142176B (en) | 2013-02-26 | 2013-02-26 | Household paper and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310060333.9A CN103142176B (en) | 2013-02-26 | 2013-02-26 | Household paper and manufacturing method thereof |
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| CN103142176A CN103142176A (en) | 2013-06-12 |
| CN103142176B true CN103142176B (en) | 2015-06-24 |
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| CN201310060333.9A Active CN103142176B (en) | 2013-02-26 | 2013-02-26 | Household paper and manufacturing method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SE537517C2 (en) | 2012-12-14 | 2015-05-26 | Stora Enso Oyj | Wet-laid sheet material comprising microfibrillated cellulosic process for making them |
| CN104404826B (en) * | 2014-10-23 | 2016-09-07 | 广东比伦生活用纸有限公司 | A kind of super soft coil paper and production method thereof |
| CN105113075A (en) * | 2015-09-11 | 2015-12-02 | 无锡市长安曙光手套厂 | Textile material |
| US10724173B2 (en) * | 2016-07-01 | 2020-07-28 | Mercer International, Inc. | Multi-density tissue towel products comprising high-aspect-ratio cellulose filaments |
| CN106835817A (en) * | 2016-12-30 | 2017-06-13 | 安徽比伦生活用纸有限公司 | A kind of preparation technology of paper for daily use |
Citations (3)
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| CN101952508A (en) * | 2008-03-31 | 2011-01-19 | 日本制纸株式会社 | Additive for papermaking and paper containing the same |
| JP2012525509A (en) * | 2009-04-29 | 2012-10-22 | ウーペーエム−キュンメネ コーポレイション | Method for producing finished paper, finished paper and paper |
| CN103114501A (en) * | 2013-01-21 | 2013-05-22 | 金红叶纸业集团有限公司 | Production process of antibacterial paper and antibacterial paper |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102080343B (en) * | 2010-11-25 | 2013-05-29 | 山东轻工业学院 | Application of anion nano microcrystalline cellulose as paper reinforcer |
| CN102080346B (en) * | 2010-11-25 | 2011-12-28 | 山东轻工业学院 | Application of cation nano microcrystalline cellulose as paper reinforcing agent |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952508A (en) * | 2008-03-31 | 2011-01-19 | 日本制纸株式会社 | Additive for papermaking and paper containing the same |
| JP2012525509A (en) * | 2009-04-29 | 2012-10-22 | ウーペーエム−キュンメネ コーポレイション | Method for producing finished paper, finished paper and paper |
| CN103114501A (en) * | 2013-01-21 | 2013-05-22 | 金红叶纸业集团有限公司 | Production process of antibacterial paper and antibacterial paper |
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