| 摘要 |
1. Descaling and cleaning composition characterized in that the cellulose microfibrils include at least 80% of cells with primary walls, preferably at least 85% and at most 20% of cells with secondary walls, preferably not more than 15% and with a crystallinity level no higher than 50%, preferably below 40%. 2. The composition as defined by Claim 1, characterized in that the microfibrils have mean duameter from 20 to 40 angstrom , preferably from 30 to 40 angstrom . 3. The composition as defined by Claims 1 and 2, characterized in that the microfibrils stem from vegetable pulp with primary cell walls. 4. The composition as defined by Claim 3, characterized in that the microfibrils stem from beet, cereal brans. 5. The composition as defined by Claims 1-4, characterized in that the cellulose microfibrils comprise 0.05-1.5% by weight, preferably 0.1-1% by weight. 6. The composition as defined by a Claim 1-5, characterized in that comprises at least one organic or inorganic acid or a mixture of said acids. 7. The composition as defined by Claim 6, characterized in that the organic acid is selected from aliphatic mono- or polycarboxylic acids having1-12 carbon atoms. 8. The composition as defined by Claim 7, characterized in that the organic acids is selected from formic, acetic, maleic, citric, sulfamic, oxalic, adipic, succinic, glutaric acids, wherein said acids present separately or in mixture thereof. 9. The composition as defined by Claim 6, characterized in that the inorganic acid is selected from hydrochloric or phosphoric acids or the mixture thereof. 10. The composition as defined by Claims 1-9, characterized in that the quantity of acid is such that pH value is 2 or lower, preferably 1.5 or lower 11. The composition as defined by Claims 1-10, characterized in that the quantity of acid is such that pH value is 1 or lower, preferably 0.5 or lower. 12. The composition as defined by Claims 6-11, characterized in that the quantity of acid is 1-20% by weight, preferably 3-15% by weight. 13. The composition as defined by Claims 1-12, characterized in that comprises at least one detergent surfactant selected from non-ionic, cationic, amphoteric surfactants or mixtures thereof. 14. The composition as defined by Claims 1-13, characterized in that the surfactants comprise 0.1-5% by weight, preferably 0.8-3% by weight. 15. The composition as defined by Claims 1-14, characterized in that comprises additives such as colorants, conservatives, perfumes. 16. The composition as defined by Claim 15, characterized in that the additives comprise lower 2% by weight, preferably lower 1% by weight. 17. The composition as defined by a Claim 1-16, characterized in that comprises water. |
