Cracking on plastisol ink often results from improper curing of the ink during the printing process. To fix it, first, check the curing temperature. Plastisol ink typically needs to be cured at 320°F (160°C) for 1 to 2 minutes. Use a laser thermometer to ensure your dryer reaches this temperature. If under-cured, pass the garment through the dryer again at the correct temperature. If over-cured, unfortunately, you can't reverse the damage, and reprinting may be needed. Additionally, using an additive to increase the ink's elasticity can help prevent future cracking. Ensure your screen tension is appropriate and that the ink layer isn't too thick, as this can also affect curing. Regular maintenance of your screen printing equipment and adhering to the ink manufacturer's guidelines will minimize cracking issues.

Cats have an intrinsic need to scratch, which helps them remove the dead outer layer of their claws, mark their territory, and stretch their bodies. When it comes to scratching materials, cats generally prefer textures that are easy to shred and offer a satisfactory clawing experience. Polypropylene olefin, a common material used in carpeting and rugs, is relatively resistant to scratches compared to natural fibers like wool or cotton, due to its synthetic nature and tightly woven fibers. While not entirely scratch-proof, polypropylene olefin is less appealing to cats for scratching because it does not shred easily under their claws. This characteristic might deter cats to some extent, but it does not guarantee that a determined cat won't attempt to scratch it. To minimize the likelihood of your cat scratching your polypropylene olefin items, provide ample alternative scratching posts or pads that are more appealing to them.

Acrylic yarn, a synthetic fiber, is typically not the best choice for summer projects due to its lack of breathability and moisture-wicking properties compared to natural fibers like cotton or bamboo. While lightweight and easy to care for, acrylic yarn can trap heat and cause discomfort in warmer weather. Natural fibers, which are more breathable, tend to be preferable for summer wear as they allow for better air circulation and moisture absorption, keeping the wearer cooler. However, for projects not worn close to the skin, such as bags or summer evening shawls, acrylic might still be suitable due to its durability and color variety.