Laboratory Tenter, a flexible continuous pin chain type hot air dryer, is generally used together with a small padder/resin pressure dyeing machine for dry laboratory tests on drying, setting, resin processing baking, roll dyeing baking, and heat fixing, to obtain correct resin processing formulations, to test dyeing processing color changes and to verify the results of pharmaceutical tests. It can also be used to complete the hand sample production, to obtain the correct color sample and tissue sample.