CN85105666A - 食品防粘涂料铁涂装方法 - Google Patents

食品防粘涂料铁涂装方法 Download PDF

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CN85105666A
CN85105666A CN85105666.0A CN85105666A CN85105666A CN 85105666 A CN85105666 A CN 85105666A CN 85105666 A CN85105666 A CN 85105666A CN 85105666 A CN85105666 A CN 85105666A
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application
baking
film forming
subbing
investment precoat
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CN1008695B (zh
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吴忠仁
付建民
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ANYANG PRESS
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ANYANG PRESS
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Abstract

用作午餐肉糜罐头包装材料的防腐涂层,凡由底层涂料和面层涂料涂装于金属薄板而成的,现均采用先涂装一层底涂料,经烘烤成膜后,再涂装含有防粘剂的面层涂料,再次烘烤成膜的方法。本方法采用底层涂料涂装后,不经烘烤直接涂装防粘层,一次烘烤成膜。底、面两层干膜重量之比为0.4~0.6。
优点在于底层和面层涂料连续涂装,一次烘烤,从而提高生产效率一倍,显著降低能源消耗,节约原材料。

Description

本方法是食品防粘涂料铁的一种涂装方法,该防粘涂料铁适用于午餐肉等肉糜类食品罐头的包装。
为了防止午餐肉等肉糜类食品对金属罐壁的腐蚀,并在食用时内容物能完整、顺利地倒出,罐头内壁必须涂装具有防粘性能的防腐蚀涂层。现有食品罐头内壁的防腐与防粘层。凡由底层涂料和面层涂料涂装于金属薄板而组成的,均采用先涂装一层底涂料,经烘烤成膜后,再涂装含有防粘剂的面层涂料,再次烘烤成膜的方法。这种方法,需两次涂装,两次烘烤,操作繁复。能源消耗高。
本涂装方法,在保持该产品原各项性能指标的同时,减少一次烘烤,达到降低能源消耗,提高生产效率,节约原材料之目的。
本涂装方法实施要点是:选择底层与面层烘烤温度一致的涂料。在底层涂料中加入氧化锌,使之具有良好的防腐蚀性能,并避免整个涂层在烘烤中出现皱缩,在面层涂料中加入防粘剂,使之有良好的防粘性能,也具有一定的防腐蚀作用。采用有两个串联印涂机的涂料铁生产线,通过调整涂料的粘度、固体含量及印涂滚筒间隙,使底涂层干膜重量为面涂层干膜重量的0.4~0.6倍。底层、面层连续涂装,一次烘烤成膜。例如:底层采用环氧酚醛型涂料,加入涂料固体含量6~8%的氧化锌(经球磨),于室温下混合搅拌,涂装粘度45~55秒/25℃(涂-4粘度计),固体含量28~31%。面层也采用环氧酚醛型涂料,加入涂料固体含量15~17%的防粘剂(经球磨的乙撑二硬酯酰胺),于室温下混合搅拌,涂装粘度55~65秒/25℃(涂-4粘度计),固体含量30~35%。涂装时,将底层涂料输入前印涂机,控制干膜重量为2~3克/米2。将面层涂料输入后印涂机,控制干膜重量为4.5~5.5克/米2。金属薄板经前印涂机涂装底层后,不经烘烤,直接进入后印涂机涂装面层涂料,然后输入烘房,经一次烘烤成膜。烘房温度的调整,使高温区前后分别为200±5℃和210±5℃,高温区烘烤时间为12分钟。升温过程均匀平缓,时间为3~4分钟。高温成膜后,经3~4分钟降温冷却,即获得产品。
本涂装方法的优点在于:底层和面层涂料连续涂装,一次烘烤成膜,比现有此种产品的涂装方法,减少一次烘烤,提高生产效率一倍,显著降低能源消耗,节约原材料。

Claims (3)

1、本发明专利是食品防粘涂料铁的一种涂装方法,其特征在于:底层涂料涂装后,不经烘烤,直接涂装面层涂料,然后进入烘房,一次烘烤成膜。
2、根据权项(1)所说的底层涂料中,加入涂料固体含量6~8%的氧化锌(经球磨)。
3、根据权项(1)所说的底层涂料与面层涂料干膜重量之比为0.4~0.6。
CN 85105666 1985-07-23 1985-07-23 食品防粘涂料铁涂装方法 Expired CN1008695B (zh)

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CN 85105666 CN1008695B (zh) 1985-07-23 1985-07-23 食品防粘涂料铁涂装方法

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Application Number Priority Date Filing Date Title
CN 85105666 CN1008695B (zh) 1985-07-23 1985-07-23 食品防粘涂料铁涂装方法

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CN85105666A true CN85105666A (zh) 1987-01-21
CN1008695B CN1008695B (zh) 1990-07-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105776111A (zh) * 2016-05-06 2016-07-20 长葛市怡盛蜂业有限公司 一种蜂胶的桶装方法
CN111013984A (zh) * 2019-11-27 2020-04-17 四川高盛包装制品有限公司 一种午餐肉罐头盒底盖防硫化涂布方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105776111A (zh) * 2016-05-06 2016-07-20 长葛市怡盛蜂业有限公司 一种蜂胶的桶装方法
CN105776111B (zh) * 2016-05-06 2018-08-03 河南田冠农业机械制造有限公司 一种蜂胶的桶装方法
CN111013984A (zh) * 2019-11-27 2020-04-17 四川高盛包装制品有限公司 一种午餐肉罐头盒底盖防硫化涂布方法

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