Claims
- 1. In a process for inhibiting the blinding of paper machine press section felts in which papermaking felt is cleaned with a felt cleaning agent and wherein a vacuum is applied to a bottom surface of said felt to remove water, and the removed water is then sent to a white water system, the improvement comprising; cleaning said felts with an effective amount of an aqueous solution of a cleaning agent, said cleaning agent comprising;
- a) at least one anionic polymer selected from the group consisting of polycarboxylic acids and derivatives thereof, having an average molecular weight of 500 to less than 5000;
- b) 2-phosphino-1,2,4-tricarboxybutane, and;
- c) an amphoteric surfactant selected from the group consisting of alkyl-N-(3aminopropyl)-glycines and alkyl-di(aminoethyl)-glycines.
- 2. Method according to claim 1 wherein the concentration of the anionic polymer and 2-phosphino-1,2,4-tricarboxybutane is 100 ppm or less, based on the white water.
- 3. Method according to claim 1 wherein the concentration of the amphotheric surfactant is 100 ppm or less, based on the white water.
- 4. Method according to claim 1 wherein the total concentration of active ingredients is 20 to 200 ppm, based on the white water.
- 5. Method according to claim 1 wherein total concentration of active ingredients is 20 to 50 ppm, based on the white water.
- 6. Method according to claim 1 wherein the aqueous solution of said agent comprises 50 to 90% by weight of water and is sprayed onto the paper machine press section felts.
Priority Claims (1)
Number |
Date |
Country |
Kind |
44 43 181.3 |
Nov 1994 |
DEX |
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Parent Case Info
This is a continuation divisional of application Ser. No. 08/461,486 filed Jun. 5, 1995, now U.S. Pat. No. 5,651,812.
US Referenced Citations (8)
Foreign Referenced Citations (1)
Number |
Date |
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1319078 |
Jun 1993 |
CAX |
Divisions (1)
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Number |
Date |
Country |
Parent |
461486 |
Jun 1995 |
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