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Understanding Red in Cosmetic Hair Colouring

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Understanding Red in Cosmetic Hair Colouring

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Questions and Answers

What happens to reds in cosmetic hair colouring as they become lighter?

They become more violet

They become more blue

They become more green

They become more orange (correct)

What is a particular strength of the Alfaparf Milano reds as mentioned in the text?

Improved longevity and intensity (correct)

Generic base

Intense green hue

Short longevity

How do coppers and violets compare to other cosmetic reds in terms of vibrancy, intensity, and longevity?

They have more generic bases

Their hues are less saturated

They are less vibrant

They have improved vibrancy, intensity, and longevity (correct)

At what levels are natural hair colours classified as 'medium range colors'?

Levels 4-7 Signup and view all the answers

What happens to the reds in cosmetic hair colouring as they become darker?

They become more violet Signup and view all the answers

What feature of the permanent colours used in cosmetic hair colouring contributes to the improved longevity and intensity of reds?

Generic base Signup and view all the answers

According to the passage, which of the following statements about red colors in permanent cosmetic colors is correct?

Red becomes lighter as it tends towards orange and darker as it tends towards violet. Signup and view all the answers

According to the passage, how do cosmetic reds change to achieve lighter or darker shades?

They change prismatically, maintaining their saturation and vibrancy by shifting towards orange for lighter shades and violet for darker shades. Signup and view all the answers

According to the passage, which of the following statements about copper in cosmetic colors is correct?

Copper hues range from golden coppers to red-oranges, with varying saturations. Signup and view all the answers

According to the passage, which of the following statements about high value saturated shades like pinks and violets is correct?

They are more usually found in demi-permanent or direct color lines because their result depends on sufficiently reducing the amount of residual melanin. Signup and view all the answers

According to the passage, which of the following statements about the properties of hue, saturation, and value is correct?

They determine the range of colors that can exist in a cosmetic color chart. Signup and view all the answers

According to the passage, which of the following statements about the shades 8.66i, 8.43, and 6.43 in permanent cosmetic colors is correct?

8.66i is a red with an orange subsidiary tone, while 8.43 and 6.43 are orange with a red subsidiary tone. Signup and view all the answers