Examples of 'retention aid' in a sentence
Meaning of "retention aid"
Retention aid: A substance, typically a chemical, used in various industrial processes to help retain other substances or particles. In the context of papermaking, a retention aid is used to improve the retention of fine particles during the paper formation process
How to use "retention aid" in a sentence
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retention aid
Another retention aid could be a cationic starch.
Basis weight was adjusted by changing retention aid dosage.
No retention aid was used with the cationic material.
Nanocellulose can be used as a retention aid.
A conventional retention aid was also used.
For instance it can be added before a polymeric retention aid.
In particular a polymeric retention aid is added to the thin stock.
The crosslinked cationic starches also function as retention aid.
The use of a retention aid did not appear to affect strength properties significantly.
Emulsion polymerization of polyacrylamide for retention aid in paper production.
The retention aid can be dissolved cationic starch but is often a synthetic polymeric material.
Polyaluminium chloride is used in papermaking as a retention aid or for internal sizing.
For instance polymeric retention aid can be added just prior to or at the headbox.
The loss of filler can be reduced by the addition of a retention aid.
The dosage of added flocculant or retention aid is usually within the conventional ranges.
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The performance of the above solutions was tested as a retention aid as before.
The polymeric retention aid may be derived from any suitable natural or synthetic polymers.
In preferred processes of the invention cationic polymer is included as a retention aid.
The components of drainage and retention aid systems are normally added separately to the stock.
Basis weight of the sheet was adjusted by changing the retention aid dosage.
The second polymeric retention aid must have a higher cationicity than the first polymeric retention aid.
This aspect of the invention makes use of an anionic flocculant as a retention aid.
The aqueous slurry of abrasive particles and retention aid can also contain paper furnish.
A preferred embodiment thereof relates to a cellulosic suspension further comprising a polymeric retention aid.
When wet end addition is chosen a cationic retention aid is normally required.
An anionic retention aid was utilized along with an ASA sizing agent.
The stock sample had been taken just before retention aid additions.
Retention aid bind additives to paper, improve.
A process according to any preceding claim in which the polymeric retention aid is cationic.
Apparently the retention aid by itself enhances fiber-fiber bonding.
The properties of this swelling clay and the retention aid are as described above.
The retention aid can be a cationic polymer such as a polyamide, polyacrylamide or polyethylenimine.
The slurry was drained to remove any unbonded retention aid free in the suspension.
Example 4 . This example demonstrates an iron compound improves starch performance as a retention aid.
Desirably the dose of first polymeric retention aid will often be at least 50 ppm.
For instance a cationic coagulant may be added first followed by a polymeric retention aid.
In particular, the synthetic polymeric retention aid is always added after the centriscreen.
The slurry may be flocculated with a flocculating agent and drainage retention aid chemicals.
The addition of the first, cationic, retention aid causes flocculation of the suspension.
The fibres may be pre-treated with an anionic polymeric retention aid.
In the paper industry, it could be used as a retention aid filter, papermaking sewage treatment.
The product according to claim 1 and further including a cationic retention aid.
A retention system comprising a polymeric retention aid is added during most paper-making processes.
Retention aid addition, nil.
An additional control sample was made using only retention aid without any clay.
In making hand sheets the retention aid was added about 6 minutes after adding the oil.
Hence, it acts as an excellent retention aid.
After the addition of the size a retention aid may be added - typically Cartaretin PC.
To the pulp mixture was added 1 % of a cationic starch as a retention aid.
For instance, in one particular embodiment, the retention aid may comprise polydiallyl dimethyl ammonium chloride.
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