Abstract: An effervescent liquid fish attractant that appeals to all of the senses of fish is disclosed. The fish attractant comprises an oil carrier liquid, scent or taste components, pigment components, light reflective particles, and CO.sub.2 gas-generating particles. The novel CO.sub.2 gas-generating particles comprise a weak organic acid and a base reagent, stabilized by a matrix forming polymer, such as polyvinylpyrrolidone. A novel process for preparing the CO.sub.2 gas-generating particles in a C.sub.1 to C.sub.4 alcohol solvent is also disclosed.

Abstract: Tamper-indicating, laminated wrappers wherein a visible change between layers of the wrapper indicate that the wrapper has been punctured or that there has been tampering with the wrapper or its contents. The wrapper may be composed of two or more plies of packaging material such as films made from ethylene vinyl alcohol copolymer or from polyolefins such as polypropylene. In one construction, a transparent or translucent laminated wrapper becomes opaque upon rupture or puncture. In other constructions, a transparent or translucent wrapper becomes colored at the site of the rupture or puncture.