Itheyiphu ye-biodegradable ihlukile kutheyiphu yepulasitiki yendabuko.Isekelwe kufilimu ye-cellulose futhi ihlanganiswe ne-adhesive esekelwe emanzini ezwela ukucindezela emulsified yi-butyl acrylate ne-rosin resin, engaba nobungane bemvelo, isetshenziswe kabusha futhi ihlanganiswe.Ukusebenzisa itheyiphu yokupakisha ecacile ye-Baokai angeke kungcolise imvelo, ngoba angamateyipu agaywa kabusha anamapulasitiki anguziro.