CN106638138A - Defoaming agent for papermaking and application method of defoaming agent - Google Patents
Defoaming agent for papermaking and application method of defoaming agent Download PDFInfo
- Publication number
- CN106638138A CN106638138A CN201611264208.XA CN201611264208A CN106638138A CN 106638138 A CN106638138 A CN 106638138A CN 201611264208 A CN201611264208 A CN 201611264208A CN 106638138 A CN106638138 A CN 106638138A
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- China
- Prior art keywords
- defoamer
- stock
- paper grade
- defoaming agent
- slurry
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/12—Defoamers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Abstract
The invention relates to the technical field of papermaking, in particular to a defoaming agent for papermaking and an application method of the defoaming agent. The defoaming agent for papermaking is prepared from the following components in percentage: 50 to 80 percent of an alcohol defoaming agent and 20 to 50 percent of an ether defoaming agent. The defoaming agent for papermaking can inhibit generation of bubbles and quickly eliminate the bubbles; furthermore, the use amount of separately using one type of defoaming agent is effectively reduced, and the cost can be reduced. The application method comprises the steps of 1, temperature adjustment, 2, homogenization, 3, material feeding, and 4, stirring. According to the application method, the bubbles can be conveniently and quickly eliminated, and the papermaking efficiency is improved.
Description
Technical field
The present invention relates to pulp technology for making paper, and in particular to a kind of defoamer and its application process of paper grade (stock).
Background technology
With the continuous lifting of paper technology, the speed of paper machine is constantly lifted, and especially adds auxiliary agent kind in paper making wet part
Class increases, plus contains the electrical conductivity of more fiber, gluing composition granule and slurry in spreading mass more than 2000, and slurry
Amount of turbulence it is larger so that air is entered in water, forms substantial amounts of bubble, and bubble alleviates the relative density of slurry so that
Fiber in slurry produces laitance, foam and cohesion, and causes slurry poor in the drainage of wet end, has had a strong impact on the matter of paper
Amount, therefore, the bubble eliminated in slurry is particularly important.
In prior art, a type of defoamer is typically individually added in the slurry carries out froth breaking, but on the market
Defoamer is broadly divided into alcohol defoaming agent and ethers defoamer, and alcohol defoaming agent is water-soluble emulsion liquid, make bubble coalescence and
Float afterwards and vanish, ethers defoamer can then reduce the surface tension of foam, and then make bubble-break, it can be seen that, alcohols froth breaking
Agent mainly suppresses the generation of foam, but poor to defoaming effect, and ethers defoamer acts primarily as froth breaking effect, but can not preferably press down
Foam processed is produced, therefore, the defoaming effectiveness of prior art defoamer is not ideal enough to cause the substantial amounts of defoamer of consumption.Therefore, have
Necessity prepares new defoamer, to improve defoaming effect, and then improves the quality of papermaking.
The content of the invention
There is one of above-mentioned technical problem, the object of the invention for prior art is to provide one kind foam can be suppressed to produce
The defoamer of the raw paper grade (stock) that can quickly eliminate bubble again.
There is above-mentioned technical problem for prior art, the two of the object of the invention is to provide a kind of defoamer of paper grade (stock)
Application process, the application process can conveniently and efficiently eliminate bubble.
One of for achieving the above object, the present invention provides technical scheme below：Below according to claims modification.
A kind of defoamer of paper grade (stock) is provided, is made up of the component of following percentage by weight：
Alcohol defoaming agent 50% ~ 80%
Ethers defoamer 20% ~ 50%.
In above-mentioned technical proposal, it is made up of the component of following percentage by weight：
Alcohol defoaming agent 60% ~ 70%
Ethers defoamer 30% ~ 60%.
In above-mentioned technical proposal, the alcohol defoaming agent is in butanol defoamer, octanol defoamer, isopropanol defoamer
A kind of mixture of or arbitrarily two or more defoamer.
In above-mentioned technical proposal, the ethers defoamer is castor oil polyoxyethylene ether, glycerin polyether, polyoxyethylene, poly-
The mixture of one kind or arbitrarily two or more defoamers in oxypropylene ether and PPG type polypropylene glycols.
Two for achieving the above object, the present invention provides technical scheme below：
A kind of application process of the defoamer of paper grade (stock) is provided, is comprised the following steps：
Step one, temperature adjustment：Paper grade (stock) slurry is adjusted to uniform temperature, the slurry after temperature adjustment is obtained；
Step 2, homogeneous：The alcohol amount defoamer and the ethers defoamer of formula ratio are weighed respectively, then the alcohols
Defoamer and the ethers defoamer are mixed and stirred for uniformly, and the defoamer of homogeneous is obtained；
Step 3, feeds intake：Described in defoamer after step 2 homogeneous is thrown to the temperature adjustment of step one with certain throwing amount speed
In slurry, obtain adding the slurry of defoamer；
Step 4, stirring：The slurry of the addition defoamer of step 3 is well mixed.
In above-mentioned technical proposal, in the step one, the temperature is 40 DEG C ~ 50 DEG C.
In above-mentioned technical proposal, in the step 3, the defoamer after homogeneous is thrown into the slurry using membrane pump.
In above-mentioned technical proposal, in the step 3, the throwing amount speed is 50ml/min ~ 100ml/min.
In above-mentioned technical proposal, in the step 3, the throwing amount speed is 90ml/min.
Beneficial effects of the present invention：
（1）A kind of defoamer of paper grade (stock) of the present invention, is made up of, due to alcohol defoaming agent alcohol defoaming agent and ethers defoamer
Water can be preferably dissolved in and then promoted the bubble coalescence in slurry and floated, so that the air content in slurry is reduced, while
Can also suppress hydrophobic substance that pulp surface is gathered in due to air supporting, serve the effect for suppressing pulp surface to produce foam；And
Ethers defoamer then can adsorb on air bubble liquid-membrane under conditions of high-speed paper machine, bubble is ruptured rapidly, play higher froth breaking
Effect；Compared with prior art, alcohol defoaming agent and collaborative work both ethers defoamer, can suppress bubble produce and
The quick froth breaking of energy, not only increases the effect of froth breaking, and effectively reduces the consumption that a classification defoamer is used alone, and is beneficial to
It is cost-effective.
（2）The application process of the above-mentioned defoamer that the present invention is provided, the application process can conveniently and efficiently eliminate bubble.
（3）The defoamer and its application process of the paper grade (stock) that the present invention is provided, the defoamer of the paper grade (stock) has and produces into
This it is low and can be applied to large-scale production the characteristics of.
Specific embodiment
With reference to embodiment, the present invention is further illustrated.
Embodiment 1.
The defoamer of the paper grade (stock) of the present embodiment, is made up of the raw material of following weight：
Alcohol defoaming agent 50kg, ethers defoamer 20kg；Wherein, alcohol defoaming agent be butanol defoamer, octanol defoamer it is mixed
Compound, ethers defoamer is the mixture of castor oil polyoxyethylene ether, glycerin polyether；
The application process of the defoamer of above-mentioned paper grade (stock) is as follows：
By the slurry temperature adjustment of paper grade (stock) to 40 DEG C, 50kg alcohol defoaming agents and 20kg ethers defoamers are then weighed, then alcohol
Class defoamer and ethers defoamer are mixed and stirred for uniformly, and then the defoamer of homogeneous is thrown to temperature with the throwing amount of 50ml/min
In being 40 DEG C of slurry, wherein, membrane pump throws defoamer into the slurry, finally that the slurry mixing for adding defoamer is equal
It is even, you can to complete froth breaking operation.
Embodiment 2.
The defoamer of the paper grade (stock) of the present embodiment, is made up of the raw material of following weight：
Alcohol defoaming agent 80kg, ethers defoamer 50kg；Wherein, alcohol defoaming agent is butanol defoamer, octanol defoamer, isopropyl
The mixture of alcohol defoamer, ethers defoamer is the mixture of polyoxyethylene, polyethenoxy ether and PPG type polypropylene glycols；
The application process of the defoamer of above-mentioned paper grade (stock) is as follows：
By the slurry temperature adjustment of paper grade (stock) to 50 DEG C, 80kg alcohol defoaming agents and 50kg ethers defoamers are then weighed, then alcohol
Class defoamer and ethers defoamer are mixed and stirred for uniformly, and then the defoamer of homogeneous is thrown to temperature with the throwing amount of 100ml/min
Degree is in 50 DEG C of slurry, wherein, membrane pump throws defoamer into the slurry, will finally add the slurry mixing of defoamer
Uniformly, you can complete froth breaking operation.
Embodiment 3.
The defoamer of the paper grade (stock) of the present embodiment, is made up of the raw material of following weight：
Alcohol defoaming agent 70kg, ethers defoamer 40kg；Wherein, alcohol defoaming agent is octanol defoamer, isopropanol defoamer
Mixture, ethers defoamer is castor oil polyoxyethylene ether, glycerin polyether, polyoxyethylene, polyethenoxy ether and PPG type poly- the third two
The mixture of alcohol；
The application process of the defoamer of above-mentioned paper grade (stock) is as follows：
By the slurry temperature adjustment of paper grade (stock) to 45 DEG C, 70kg alcohol defoaming agents and 40kg ethers defoamers are then weighed, then alcohol
Class defoamer and ethers defoamer are mixed and stirred for uniformly, and then the defoamer of homogeneous is thrown to temperature with the throwing amount of 90ml/min
In being 45 DEG C of slurry, wherein, membrane pump throws defoamer into the slurry, finally that the slurry mixing for adding defoamer is equal
It is even, you can to complete froth breaking operation.
A kind of defoamer of paper grade (stock) of the present invention, is made up of, due to alcohols froth breaking alcohol defoaming agent and ethers defoamer
Agent can preferably be dissolved in water and then promote the bubble coalescence in slurry and float, so that the air content in slurry is reduced, together
When can also suppress hydrophobic substance that pulp surface is gathered in due to air supporting, serve suppress pulp surface produce foam effect；
And ethers defoamer then can adsorb on air bubble liquid-membrane under conditions of high-speed paper machine, bubble is ruptured rapidly, play higher disappearing
The effect of bubble；Compared with prior art, alcohol defoaming agent and collaborative work both ethers defoamer, can suppress bubble produce and
Again the quick froth breaking of energy, not only increases the effect of froth breaking, and effectively reduces the consumption that a classification defoamer is used alone, profit
In cost-effective.The application process of the above-mentioned defoamer that the present invention is provided can quickly and easily eliminate bubble, it can be seen that this
Invention provide paper grade (stock) defoamer and its application process, with low production cost and can be applied to large-scale production
Feature.
Finally it should be noted that above example is only illustrating technical scheme, rather than to present invention guarantor
The restriction of shield scope, although having made to explain to the present invention with reference to preferred embodiment, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (9)
1. a kind of defoamer of paper grade (stock), is characterized in that：It is made up of the component of following percentage by weight：
Alcohol defoaming agent 50% ~ 80%
Ethers defoamer 20% ~ 50%.
2. a kind of defoamer of paper grade (stock) according to claim 1, is characterized in that：By the group including following percentage by weight
Part composition：
Alcohol defoaming agent 60% ~ 70%
Ethers defoamer 30% ~ 60%.
3. a kind of defoamer of paper grade (stock) according to claim 1, is characterized in that：The alcohol defoaming agent is butanol froth breaking
One kind or arbitrarily two or more mixtures in agent, octanol defoamer, isopropanol defoamer.
4. a kind of defoamer of paper grade (stock) according to claim 1, is characterized in that：The ethers defoamer is that castor oil gathers
One kind or arbitrarily two or more defoamers in oxygen vinethene, glycerin polyether, polyoxyethylene, polyethenoxy ether and polypropylene glycol
Mixture.
5. a kind of application process of the defoamer of the paper grade (stock) described in Claims 1-4 any one, is characterized in that：Including with
Lower step：
Step one, temperature adjustment：Paper grade (stock) slurry is adjusted to uniform temperature, the slurry after temperature adjustment is obtained；
Step 2, homogeneous：The alcohol amount defoamer and the ethers defoamer of formula ratio are weighed respectively, then the alcohols
Defoamer and the ethers defoamer are mixed and stirred for uniformly, and the defoamer of homogeneous is obtained；
Step 3, feeds intake：Described in defoamer after step 2 homogeneous is thrown to the temperature adjustment of step one with certain throwing amount speed
In slurry, obtain adding the slurry of defoamer；
Step 4, stirring：The slurry of the addition defoamer of step 3 is well mixed.
6. a kind of application process of the defoamer of paper grade (stock) according to claim 5, is characterized in that：In the step one,
The temperature is 40 DEG C ~ 50 DEG C.
7. a kind of application process of the defoamer of paper grade (stock) according to claim 5, is characterized in that：In the step 3,
The defoamer after homogeneous is thrown into the slurry using membrane pump.
8. a kind of application process of the defoamer of paper grade (stock) according to claim 5, is characterized in that：In the step 3,
The throwing amount speed is 50ml/min ~ 100ml/min.
9. a kind of application process of the defoamer of paper grade (stock) according to claim 5, is characterized in that：In the step 3,
The throwing amount speed is 90ml/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264208.XA CN106638138A (en) | 2016-12-30 | 2016-12-30 | Defoaming agent for papermaking and application method of defoaming agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264208.XA CN106638138A (en) | 2016-12-30 | 2016-12-30 | Defoaming agent for papermaking and application method of defoaming agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106638138A true CN106638138A (en) | 2017-05-10 |
Family
ID=58837892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611264208.XA Pending CN106638138A (en) | 2016-12-30 | 2016-12-30 | Defoaming agent for papermaking and application method of defoaming agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106638138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109173351A (en) * | 2018-10-23 | 2019-01-11 | 西安三业新材料股份有限公司 | A kind of organic-silicon-modified castor oil polyether antifoam agent of emulsion-type and preparation method |
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|---|---|---|---|---|
| CN101130939A (en) * | 2007-09-27 | 2008-02-27 | 南京四新科技应用研究所有限公司 | Antifoam agent for wet part of papermaking |
| CN101158131A (en) * | 2007-11-13 | 2008-04-09 | 南京四新科技应用研究所有限公司 | Defoaming agent for linerboard paper making |
| CN101638868A (en) * | 2008-08-01 | 2010-02-03 | 尹玉娟 | Polyether defoamer |
| CN102154939A (en) * | 2011-01-27 | 2011-08-17 | 南京四新科技应用研究所有限公司 | Anti-foaming agent for papermaking system |
| CN105462257A (en) * | 2015-11-24 | 2016-04-06 | 宜兴市丰烨化学有限公司 | Polyether-siloxane isooctanol antifoaming agent and preparation method thereof |
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2016
- 2016-12-30 CN CN201611264208.XA patent/CN106638138A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101130939A (en) * | 2007-09-27 | 2008-02-27 | 南京四新科技应用研究所有限公司 | Antifoam agent for wet part of papermaking |
| CN101158131A (en) * | 2007-11-13 | 2008-04-09 | 南京四新科技应用研究所有限公司 | Defoaming agent for linerboard paper making |
| CN101638868A (en) * | 2008-08-01 | 2010-02-03 | 尹玉娟 | Polyether defoamer |
| CN102154939A (en) * | 2011-01-27 | 2011-08-17 | 南京四新科技应用研究所有限公司 | Anti-foaming agent for papermaking system |
| CN105462257A (en) * | 2015-11-24 | 2016-04-06 | 宜兴市丰烨化学有限公司 | Polyether-siloxane isooctanol antifoaming agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 帅亮明: "醚类消泡剂代替脂肪醇消泡剂的效果", 《纸和造纸》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109173351A (en) * | 2018-10-23 | 2019-01-11 | 西安三业新材料股份有限公司 | A kind of organic-silicon-modified castor oil polyether antifoam agent of emulsion-type and preparation method |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |