1.Ade a wɔde di dwuma: Wɔde ink a ɛyɛ den di dwuma titiriw ma nneɛma a ɛyɛ den te sɛ dade, ahwehwɛ, plastic a ɛyɛ den, ceramic tile, plexiglass, acrylic, aguade ho dawurubɔ nsɛnkyerɛnne, ne nea ɛkeka ho{1}}, anaasɛ ebetumi ayɛ composite microcrystal process (nneɛma bi hia coating treatment){2}} soft ink, soft, leather, leather, advertising clos PVC, dawurubɔ nneɛma a ɛyɛ mmerɛw etc..
2. Su: Nhwɛsode a wɔatintim a ink a ɛyɛ mmerɛw no atintim no betumi akyinkyim a ɛrenpaapae. hard ink no wɔ adhesion a eye ma nneɛma a ɛyɛ den, nanso ebenya nkɛntɛnso a ɛne no bɔ abira bere a wɔde di dwuma wɔ nneɛma a ɛyɛ mmerɛw ho.
