On: YKK zippers: Why so many designers use them (2012)

[OJFord]

> When you use “velcro” as a noun or a verb (e.g., velcro shoes), you diminish the importance of our brand and our lawyers lose their insert fastening sound. So please, do not say “velcro shoes” (or “velcro wallet” or “velcro gloves”) – we repeat “velcro” is not a noun or a verb.

Weird, the word they're looking for is 'adjective'.

As the name of the company it absolutely is a (proper) noun.

[mathieuh → OJFord]

Is it an adjective? It's the same kind of thing as "golf ball", which to me is a compound noun.

[OJFord → mathieuh]

What is a compound noun if not the combination of adjective and noun, or second noun functioning as adjective and noun?