CN108914668B - Method for improving softness of bamboo pulp fibers - Google Patents
Method for improving softness of bamboo pulp fibers Download PDFInfo
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- CN108914668B CN108914668B CN201810774241.XA CN201810774241A CN108914668B CN 108914668 B CN108914668 B CN 108914668B CN 201810774241 A CN201810774241 A CN 201810774241A CN 108914668 B CN108914668 B CN 108914668B
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- fiber
- bamboo pulp
- softness
- ozone
- pulp
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
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- Wood Science & Technology (AREA)
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Abstract
The invention belongs to the field of pulping and papermaking, and particularly relates to a method for improving the softness of bamboo pulp fibers by using ozone. The invention provides a method for improving the softness of the bamboo pulp fiber, which is low in cost, simple and efficient, and has a wide development prospect.
Description
Technical Field
The invention belongs to the field of pulping and papermaking, and particularly relates to a method for improving the softness of bamboo pulp fibers.
Technical Field
Along with the wider application of bamboo pulp in the field of household paper, the requirement of people on the softness of bamboo pulp fibers is gradually improved. The bamboo pulp has the advantages of tree protection, strong reproducibility and sufficient resources, and is suitable for manufacturing medium-high-end paper by using paper; the bamboo pulp has the defect that the fiber per se is stiff and hard, so that the improvement of the softness of the bamboo pulp fiber is very important. The traditional method for improving softness is to use a softening agent, but the softening agent is not easy to degrade and has certain harm to human bodies. Therefore, a method for improving the softness of the bamboo pulp fiber, which is green and environment-friendly, simple to operate and low in cost, is expected to be found for replacing a softening agent.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method for improving the softness of bamboo pulp fibers.
The technical method of the invention is summarized as follows:
a method for improving softness of bamboo pulp fibers comprises the following steps:
step 1: pulping the bamboo pulp fiber raw material until the pulping degree is 25-35 DEG SR or performing latency-elimination defibering to obtain fiber pulp;
step 2: adding water to adjust the mass concentration of the bamboo pulp to 0.5-10 wt%, keeping the temperature of the diluted pulp at 20-40 ℃, and introducing ozone; by setting the ozone flow rate to be 2 g.h-1-5g·h-1The amount of ozone is 0.1-2%;
and step 3: squeezing out moisture from the material obtained in the step (2), and measuring the softness of the single bamboo pulp fiber by a method for quantitatively analyzing the softness of the fiber by measuring the bending degree of the fiber by a glass-metal wire method;
the fiber slurry was maintained at a temperature of 30 ℃.
The flow rate of ozone is 3 g.h-1。
The mass concentration of the fiber slurry was 2%.
The optimal dosage of ozone is 0.75%.
The method adopts ozone to treat the bamboo pulp fiber, on one hand, the ozone can remove lignin and partial hemicellulose from the surface of the fiber and the intercellular spaces, on the other hand, the fiber bundles are not bound, the fiber becomes loose, and the softness is improved. The invention provides a method for improving the softness of the bamboo pulp fiber, which is low in cost, simple and efficient, and has a wide development prospect.
Detailed Description
The following examples are intended to enable those skilled in the art to better understand the present invention, but are not intended to limit the present invention in any way.
Example 1: a method for improving the softness of bamboo pulp fibers by ozone treatment comprises the following steps:
step 1: pulping the bamboo pulp fiber raw material until the pulping degree is 31 DEG SR to obtain fiber pulp;
step 2: taking five parts of bamboo pulp fiber slurry with equal mass, adding water to adjust the mass concentration of the five parts of fiber slurry to 3%, and putting the five parts of fiber slurry into a water bath to adjust the temperature to 30 ℃. Respectively at an ozone flow rate of 3 g.h-1The amount of ozone was 0, 0.25%, 0.5%, 0.75% or 1% under the condition of (1).
And step 3: and (3) squeezing the material obtained in the step (2) to remove water, and measuring the softness of the single bamboo pulp fiber by a method for quantitatively analyzing the softness of the fiber by measuring the bending degree of the fiber by a glass-metal wire method. See table 1.
TABLE 1 influence of ozone dosage on softness of bamboo pulp fiber at a pulp concentration of 3%
Example 2: a method for improving the softness of bamboo pulp fibers by ozone treatment comprises the following steps:
step 1: pulping the bamboo pulp fiber raw material until the pulping degree is 31 DEG SR to obtain fiber pulp;
step 2: taking five parts of bamboo pulp fiber pulp with equal mass, respectively adding water to adjust the mass concentration of the five parts of the fiber pulp to 1%, 2%, 3%, 4% and 5%, and putting the five parts of the pulp into a water bath to adjust the temperature to 30 ℃. At an ozone flow rate of 3 g.h-1Under the condition of (3), 0.75% of ozone is introduced.
And step 3: and (3) squeezing the material obtained in the step (2) to remove water, and measuring the softness of the single bamboo pulp fiber by a method for quantitatively analyzing the softness of the fiber by measuring the bending degree of the fiber by a glass-metal wire method. See table 2.
TABLE 2 impact of pulp consistency on softness of bamboo pulp fibers at 0.75% ozone dosage
Claims (1)
1. A method for improving the softness of bamboo pulp fibers is characterized by comprising the following steps:
step 1: pulping the bamboo pulp fiber raw material until the pulping degree is 31 DEG SR to obtain fiber pulp;
step 2: adding water to adjust the mass concentration of the bamboo pulp to 2%, keeping the temperature of the diluted pulp at 30 ℃, and introducing ozone; by setting the ozone flow rate to be 3 g.h-1The ozone dosage is 0.75 percent;
step 3; and (3) squeezing the water out of the material obtained in the step (1), and measuring the softness of the single bamboo pulp fiber by a method for quantitatively analyzing the softness of the fiber by measuring the bending degree of the fiber by a glass-metal wire method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810774241.XA CN108914668B (en) | 2018-07-16 | 2018-07-16 | Method for improving softness of bamboo pulp fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810774241.XA CN108914668B (en) | 2018-07-16 | 2018-07-16 | Method for improving softness of bamboo pulp fibers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108914668A CN108914668A (en) | 2018-11-30 |
| CN108914668B true CN108914668B (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810774241.XA Active CN108914668B (en) | 2018-07-16 | 2018-07-16 | Method for improving softness of bamboo pulp fibers |
Country Status (1)
| Country | Link |
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| CN (1) | CN108914668B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110438835A (en) * | 2019-07-24 | 2019-11-12 | 浙江景兴纸业股份有限公司 | A method of improving high yield pulp fiber flexibility |
| CN111826984A (en) * | 2020-07-09 | 2020-10-27 | 天津科技大学 | Method for improving softness of high-yield bamboo pulp fibers through ultrasonic-assisted ozone treatment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071038A (en) * | 2017-12-15 | 2018-05-25 | 天津科技大学 | A kind of method for improving bamboo pulp fiber pliability |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7602750L (en) * | 1975-03-03 | 1976-09-06 | Procter & Gamble | USE OF THERMOMECHANICAL PULP FOR THE MANUFACTURE OF HIGH BULK TISSUE |
| KR100811196B1 (en) * | 2005-10-12 | 2008-03-17 | (주)페가서스인터내셔널 | Method for Preparing Pulp Using Rhodophyta Having Thick Cortex |
| CN103757964B (en) * | 2014-01-07 | 2015-08-26 | 昆明理工大学 | A kind of preparation method of jute skin fiber |
| CN103882758A (en) * | 2014-03-29 | 2014-06-25 | 韶能集团韶关南雄珠玑纸业有限公司 | Method for preparing natural color bamboo pulp fiber household paper |
| CN105064116A (en) * | 2015-08-24 | 2015-11-18 | 四川康启生物科技有限公司 | Life paper made from bamboo |
| CN106283830A (en) * | 2016-07-29 | 2017-01-04 | 天津科技大学 | A kind of method improving paper for daily use pliability |
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2018
- 2018-07-16 CN CN201810774241.XA patent/CN108914668B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071038A (en) * | 2017-12-15 | 2018-05-25 | 天津科技大学 | A kind of method for improving bamboo pulp fiber pliability |
Non-Patent Citations (2)
| Title |
|---|
| "低浓度桉木KP浆臭氧漂白工艺的研究";何甜;《造纸科学与技术》;20171231;第36卷(第4期);第32页第1.2.3节、第2.1、第2.1.1节，第33页第2.1.2节、第2.2节，第34页第3节，第79页参考文献 * |
| "硫酸盐竹浆高浓臭氧漂白工艺与机理的研究";金艳羽;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;20150515;第73-74页第6条 * |
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| Publication number | Publication date |
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| CN108914668A (en) | 2018-11-30 |
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