Lottery coupon - has coatings of microcapsule and reactive ink components to transfer entries to customer's copy without carbon paper

摘要

The paper form which spontaneously folds back, esp. for lotteries. etc., where entries on the face of the coupon are transferred through to a customer's copy, has a coating on the reverse side of the original section of the form which contains at least one component of a reactive ink copying action. The reverse side of the original section of the coupon also has a second coating contg. a further component of the reaction ink copying system, and at least one of the components is contained within microcapsules to be released by pressure to react with the other component to form an inked copy of the original entry. Both components are applied evenly over most of the reverse side of the original section of the coupon. When the form is folded, a centre sheet is developed from the whole of the paper form or it is stuck at one edge of the form. The centre sheet has a coating of the second reactive ink component, at least on the side facing the customer's copy part, and the centre sheet is permeable. The face side of the form is coated over most of its surface with a material containing pigments. The paper for the form, and for the centre sheet if used, is from recycled paper or a paper derived from wood, and is unbleached. ADVANTAGE - The paper material eliminates the need for carbon paper between sections of the form, to give a cleaner usage without generating waste and affecting the environment.