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本期的封面邮票是巴西发行的《森林防火》不干胶异图四方连,它用的是再生纸,造纸原料中加入了被森林火灾烧灼过的木材,并且在四方连的中央采用了使之带有焦灼味的特殊印制工艺处理。因此,这是世界上首套再生纸邮票,也是首次使用非香味油墨印制的邮票,同时不仅从票图上,更从材质上体现了环保意义, 是名副其实的环保邮票。无独有偶,法国也发行了全套1种的《环境保护》邮票,其画面是两双大人和小孩的手所展开的山川、飞鸟景象,象征优良的环境,并且也采用再生纸印制。这是世界第二套再生纸邮票,它与巴西的第一套有所不同之处在于,再生纸因未经漂白处理而略显泛黄。
This issue of the cover stamp is released in Brazil, “Forest Fire” self-adhesive map with the Quartet, which uses recycled paper, paper materials added by the forest fire burned wood, and used in the Central Quartet With a burning special printing process. Therefore, this is the world’s first set of recycled paper stamps, is the first stamp printed using non-scented ink, not only from the ticket, but also from the material to reflect the environmental significance, is a veritable environmental stamps. Coincidentally, France also issued a full set of “environmental protection” stamps, the picture is two pairs of adults and children’s hands carried out by the mountains and birds scene, a symbol of excellent environment, and is also printed on recycled paper. This is the second set of recycled paper stamps in the world, which is different from the first one in Brazil in that the recycled paper slightly yellowed without bleaching.