Method for measuring weigh of two-sided coated plate film

A measurement method and coating technology, which is applied in the field of measurement of the weight of the plate coating film used for aluminum can lids, can solve problems such as large measurement errors, and achieve accurate results, rapid measurement, and good data reproducibility
CN101000262AInactive Publication Date: 2007-07-18SOUTHWEST ALUMINUM GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST ALUMINUM GRP
Publication Date
2007-07-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a double-sided coated plate film weight measuring method. It includes the following steps: using white cleaning cloth or sand paper to scrape off the sample single face film to expose the base material; using solvent permeated sand cloth to clean the film; dying the sample surface; clicking out the sample with certain area; using unmixed solvent to clean the two sides of the sample; drying; weighing on the analytical balance; dipping into inorganic solvent to remove another coating; taking out to wash and dry; using analytical balance to weight; dividing the different value of the two-time weighting by sample area to gain unit area coating film weight. This method is fast, exact, and has small error.
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Description

technical field

[0001] The invention relates to a method for measuring the weight of a coating film, in particular to a method for measuring the weight of a coating film of a plate used for aluminum pop can lids. Background technique

[0002] Coating film weight is a test item for architectural coated aluminum sheets and can lid coated aluminum sheets. Currently, the film weight is measured by a film weight meter. However, compared with the architectural coated aluminum plate, since the organic coating film thickness of the can lid coated aluminum plate of the can is thinner, and it is a double-sided coated plate, and the film thickness on both sides is not the same, usually the outer cover is 3.0 μm ~ 6.0μm, the inside of the cover is 7.5 ~ 12.0μm, there is a large error in the measurement of the film weight by the film weight meter, which affects the production control and the user's production of the cover.

[0003] Therefore, how to measure the film weight on both sides...

Claims

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