Poly/cotton. It irons well, it holds the shape of the garment. It wears well. Not as cool [temperature wise]as cotton, but cooler than polyester alone. Makes a great shirt,, scrubs for nurses, summer nighties and robes.
Women would suffer without Lycra/spandex. Our underwear moves with us, doesn't gouge, when we use it.
Hate linen. It wrinkles, and the wrinkes do not come out. The addition of other fibers do not help much. The look is unmade bed.
Cotton for summer, animal fibers for winter. Nylon windbreakers are great for waterproof, they block cool rainey wind , acrlyic is warm, and washable, have some acrlyc mittens and such.
Silk is great, it is a little warm to wear, it does wrinkle, it is hard to care for, but it is a beautiful fabric to wear. Soft and clingy, I wear my silk shirts in the sping. It is difficult to sew with, it ravels. I have a plaid one with soft navy, yellow, pink and blue colors, and I have a ruby red one. One is washable, one is not.
Cashmere is very delicate, and there are many grades. It is very soft, and does not hold its shape, better for sweaters, and wrapps.
Yes, very possible. If properly bitmapped, gradients can be produced by the gradual reduction in size of the bitmapped dots of one color pass and the gradual increase in size of dots in the other color.
In fact, it's the same control of bitmapped dots that make full color printing, whether on a printer or screen, possible with just the CMYK gamut.