CS214542B1 - A method of objectively evaluating dyes and pigments - Google Patents
A method of objectively evaluating dyes and pigments Download PDFInfo
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- CS214542B1 CS214542B1 CS37981A CS37981A CS214542B1 CS 214542 B1 CS214542 B1 CS 214542B1 CS 37981 A CS37981 A CS 37981A CS 37981 A CS37981 A CS 37981A CS 214542 B1 CS214542 B1 CS 214542B1
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- dye
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Abstract
Předmětem vynálezu je metoda k objektivnímu hodnocení barviv a pigmentů, spočívající v měření absorpčních nebo transmisních spekter na transparentní fólii ze silikonového kaučuku, v němž je barvivo nebo pigment rozpuštěno nebo dispergováno.The subject of the invention is a method for objectively evaluating dyes and pigments, consisting in measuring absorption or transmission spectra on a transparent silicone rubber film in which the dye or pigment is dissolved or dispersed.
Description
Vynález se týká způsobu objektivního hodnocení barviv a pigmentů, spočívajícího v měření absorpčních, popřípadě transmisních spekter na transparentní silikonové fólii, obsahující zkoumané barvivo nebo pigment..The invention relates to a method for the objective evaluation of dyes and pigments by measuring the absorption or transmission spectra on a transparent silicone film containing the dye or pigment of interest.
Nejobvyklejší metody k objektivnímu hodnocení barviv nebo pigmentů, tj. stanovení barevného odstínu, síly a čistoty vybarvení, vycházejí z remisních spekter, získaných měřením světelného záření odraženého od vybarveného substrátu, např. textilu, papíru nebo vhodných pojidel, v nichž lze barvivo nebo pigment rozpustit nebo dispergovat.The most common methods for the objective evaluation of dyes or pigments, ie determination of color shade, strength and color purity, are based on remission spectra obtained by measuring light reflected from a dyed substrate such as textiles, paper or suitable binders in which the color or pigment can be dissolved or disperse.
Nevýhodou metod založených na měření remisních spekter je, že remisní spektra zahrnují nejen specifickou spektrální absorpci barviva, ale i rozptyl jak na jeho částicích, tak i na vlastním substrátu. Vyjádření Koncentrace barviva v závislosti na hodnotě nebo na stupni,· remise· je tudíž- mnohem složitější, než jie toťnu u absorpčních spekter. Některými barvivý je sice možno vybarvit transparentní fólie, např. polyamidové nebo . polyesterové, a jejich proměřením získat transmisní, resp. absorpční spektrum, avšak tohoto způsobu nelze použít např. u pigmentů, které jsou nerozpustné. Použitím obvyklých pojidel, např. PVC, lze získat fólie, které jsou průsvitné, ale nikoliv průhledné a opticky čiré, 'a které jsou k měření transmisních spekter nevhodné, jelikož i u nich dochází ve značné míře k rozptylu světla.A disadvantage of methods based on the measurement of remission spectra is that remission spectra include not only specific spectral absorption of the dye, but also scattering both on its particles and on the substrate itself. Expression The dye concentration in terms of value or degree of remission is therefore much more complex than that of absorbent spectra. It is true that some dyes can be used to color transparent films such as polyamide or polyamide. polyester, and their measurement to obtain transmission, respectively. however, this method cannot be used, for example, in pigments which are insoluble. By using conventional binders, such as PVC, films can be obtained which are translucent but not transparent and optically clear and which are unsuitable for measuring transmission spectra, since they also exhibit a considerable amount of light scattering.
Nyní byl nalezen způsob objektivního hodnocení barviv a pigmentů, spočívající v měření absorpčních, popřípadě transmisních1 spekter, který je předmětem tohoto vynálezu a jehož podstata spočívá v tom, že se měření provádí <na transparentní fólii ze silikonového kaučuku, v němž se barvivo· rozpustí nebo disperguje.Now found a method of objective evaluation of dyes and pigments, consisting in the measurement of absorption or transmission 1 spectra, which is the subject of this invention and which is characterized in that the measurement is carried <a transparent film of silicone rubber in which the dye · Dissolve or dispersing.
K přípravě fólie se použije předpolymerů silikonověhe kaučuku, který je· kapalný a v němž se rozpustí nebo. disperguje přesněPrepare films of silicone rubber prepolymers which are liquid in which they are dissolved or dissolved. disperses accurately
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS37981A CS214542B1 (en) | 1981-01-20 | 1981-01-20 | A method of objectively evaluating dyes and pigments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS37981A CS214542B1 (en) | 1981-01-20 | 1981-01-20 | A method of objectively evaluating dyes and pigments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS214542B1 true CS214542B1 (en) | 1982-04-09 |
Family
ID=5335767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS37981A CS214542B1 (en) | 1981-01-20 | 1981-01-20 | A method of objectively evaluating dyes and pigments |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS214542B1 (en) |
-
1981
- 1981-01-20 CS CS37981A patent/CS214542B1/en unknown
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