Shin kun san tarihin ci gaban jakunkuna na takarda kraft?

          

Jakunkunan marufi na kraft takarda bisa dukan takardar ɓangaren litattafan almara.Don haka launin ya kasu kashi fari takarda kraft da kuma launin rawaya akan takarda kraft.

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Ana iya amfani da fim din PP akan takarda don kare shi daga ruwa.Layer, bugu da haɗin haɗin jaka.Hannun buɗewa da murfin baya sun kasu kashi biyu na zafi, rubutun takarda da edging.

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Lokacin da yazo ga jakar siyayya ta farko don takarda kraft, an haife ta a 1908 a St. Paul, Minnesota, Amurka.Wani mai kantin sayar da kayan abinci na gida, Wald Duvena, ya fara neman hanyoyin da zai ba masu amfani damar siyan ƙari lokaci guda don haɓaka tallace-tallace.Duvina ya yi imanin cewa ya kamata ya zama jakar da aka riga aka yi wacce ba ta da tsada kuma mai sauƙin amfani, kuma tana iya ɗaukar akalla fam 75.

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Bayan gwaje-gwaje akai-akai, sai ya kulle nau'in wannan jakar akan takarda kraft saboda an yi ta daga conifers tare da filaye masu tsayi na itace, kuma ana kula da ita da soda mai laushi da sinadarai na alkali sulfide yayin aikin dafa abinci, wanda ya sa Asalin ƙarfin fiber na itacen shine. ƙasa da lalacewa, don haka takarda ta ƙarshe da aka samar tana da alaƙa da fiber, kuma takarda tana da ƙarfi kuma tana iya jure babban juriya da matsa lamba ba tare da karyewa ba.

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Shekaru hudu bayan haka, an haifi jakar takarda ta kraft ta farko don siyayya.Ƙasanta tana da rectangular kuma tana da girma fiye da jakunkuna na V-ƙasa na gargajiya.Igiya tana bi ta kasa da gefenta don ƙara ƙarfin ɗaukar nauyi, kuma ana kafa madaukai biyu a saman ƙarshen jakar takarda don ɗagawa cikin sauƙi.Duvena ya sanya wa jakar cefane da sunansa kuma ya ba da haƙƙin mallaka a shekara ta 1915. A wannan lokacin, adadin tallace-tallace na shekara-shekara na irin waɗannan jakunkuna ya zarce miliyan 100.

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Guangdong Chuangxin Packing Group ne na gaba na dabaru da kuma marufi masana'antu high tech Enterprises tare da bincike da kuma ci gaba, samarwa, tallace-tallace .Akwai alamar kasuwanci irin su Yinuo,zhonglan, Huanyuan,Tronson,Crratrusrtda kuma fiye da 30 ƙirƙira haƙƙin mallaka.Tun lokacin da aka kafa shi a cikin 2008, manufar kamfanoni ita ce "sa duniya ta zama mafi mu'amala da abokantaka" kuma ta himmatu don zama jagorar duniya a cikin marufi na kare muhalli - manyan kamfanoni 500 na duniya.


Lokacin aikawa: Oktoba-13-2022