iimveliso

Izinto ezichaphazela iifilimu ezihlanganisiweyo zokunyanga kunye neengcebiso zokuphucula

Ukufumana iziphumo ezilungileyo zokunyanga, izinto ezininzi ezifuna ukuqwalaselwa, kubandakanya:

1. Ifomu yokunyanga igumbi kunye nesimo esifanelekileyo: isantya kunye nesixa somoya oshushu ovela kwisixhobo sokufudumeza kunye netonela;umhlaba kunye namacala amabini okanye amaninzi egumbi lokunyanga aneqondo elaneleyo kunye nobushushu obufanayo bomoya oshushu;Umahluko omncinci phakathi kweqondo lokwenyani kunye nelibekiweyo, kunye nokugcinwa kobushushu kunye nokukhutshwa kwenkunkuma ukuhlangabezana nezicelo;Imiqulu yeefilimu kulula ukuyihambisa kwaye ithathe.

2. Iimveliso zihlangabezana nezicelo zobugcisa.

3. Imisebenzi, ixabiso le-corona, ukumelana nobushushu, njl njl.

4. I-Adhesives: i-adhesive ye-solvent, i-adhesive solventless, enye okanye i-double component water base adhesive, adhesive hot melt adhesive, njl.

Eli phepha ligxile kakhulu kwiifilimu ze-lamination kunye ne-adhesives.

1. Iifilimu zokuLamination

Umzimba, ukumelana nobushushu kunye nokusebenza komqobo wefilimu ye-PE, esetyenziswa ngokubanzi, iya kuba ngcono, xa ubuninzi be-PE buphakama.Iifilimu ze-PE ezinoxinano olufanayo kodwa iinkqubo zemveliso ezahlukeneyo zinemidlalo eyahlukeneyo.

I-CPE inokupholiswa ngokukhawuleza, kunye nekristali ephantsi, ukukhanya okuphezulu kunye ne-turbidity ephantsi.Kodwa ulungelelwaniso lwemolekyuli aluqhelekanga, nto leyo ebangela ukuba kusebenze umqobo ombi, nto leyo ehambisa kakhulu.Kwaye kuyafana ne-LDPE.Ke ngoko, ubushushu bokunyanga akufuneki bube phezulu kakhulu xa usebenzisa iifilimu ze-PE.Xa ukuchasana nobushushu kwe-PE kuphuculwe, ubushushu bokunyanga bunokuba phezulu.

2. Izinto zokuncamathelisa

2.1 EthylI-Adhesive esekelwe

Ngokutsho kwemiboniso bhanyabhanya ye-lamination kunye ne-adhesives, iimeko zokunyanga zinokwahlulwa ngokwamanqanaba ahlukeneyo:

1. Ubushushu 35, ixesha 24-48h

2. Ubushushu 35-40, ixesha 24-48h

3. Ubushushu 42-45, ixesha 48-72h

4. Ubushushu 45-55, ixesha 48-96h

5. Okukhethekileyo, iqondo lokushisa ngaphezu kwe-100, ixesha ngokwenkxaso yobugcisa.

Kwiimveliso eziqhelekileyo, ukuqwalasela ubuninzi, ubukhulu, i-anti-block, ukusebenza kobushushu befilimu kunye nobukhulu beengxowa, ubushushu bokunyanga akufanele buphakame kakhulu.Ngokuqhelekileyo, 42-45okanye ngaphantsi kwanele, ixesha 48-72 iiyure.

Iifilimu zangaphandle ezilanyiswayo, ezifuna ukusebenza okuphezulu kunye nokumelana nobushushu obufanelekileyo, zilungele ukunyangwa kobushushu obuphezulu, njengangaphezulu kwama-50..Iifilimu zangaphakathi, njenge-PE okanye i-CPP yokutywina ukushisa, ifanelekile kwi-42-45, ixesha lokunyanga linokuba lide.

Iimveliso ezibilisayo okanye ezibuyisela umva, ezifuna ukusebenza okuphezulu kunye nokumelana nobushushu obuphezulu, kufuneka zihambelane neemeko zokunyanga ezibonelela ngemveliso yokuncamathelisa.

Ixesha lokunyanga kufuneka lihambelane nesantya sokugqiba ukusabela, ukukhuhlana komlinganiso kunye nokusebenza kokutywinwa kobushushu.

Iimveliso ezikhethekileyo zinokufuna ubushushu obuphezulu bokunyanga.

2.2 Ukuncamathelisa okunganyibilikiyo

Ukuba umsebenzi wokutywina uhlangabezana nemfuneko, kwiimveliso ze-laminating ezingenayo i-solventless, apho iifilimu zangaphakathi zinoxinzelelo oluphantsi, i-adhesives inama-monomers amaninzi amahhala, okwenza kube nzima ukutywinwa.Ngoko ke, ukunyanga ukushisa okuphantsi kuyacetyiswa, kwi-38-40.

Ukuba isantya sokuphendula siyahlangabezana nemfuneko, ixesha elide lokunyanga kufuneka liqwalaselwe.

Ukuba iifilimu zokutywinwa kobushushu zinoxinzelelo oluphezulu, ubushushu bokunyanga kufuneka bube ngama-40-45. Ukuba isantya sokuphendula kunye nokusebenza kokutywinwa kobushushu kufuna ukuphuculwa, ixesha lokunyanga kufuneka libe lide.

Uvavanyo olungqongqo luyimfuneko phambi kokuveliswa kobuninzi, ukuqinisekisa umgangatho.

Ngaphezu koko, ukufuma kufuneka kuthathelwe ingqalelo.Ngokukodwa ebusika obomileyo, ukufuma okufanelekileyo kunokukhawulezisa izinga lokuphendula.

2.3 Izinto ezincamathelayo ezisekelwe emanzini

Xa i-laminating ye-VMCPP, umatshini wokuhlamba kufuneka wome ngokwaneleyo, okanye umaleko owenziwe nge-aluminised uya kuba oxidized.Ngexesha lokunyanga, iqondo lokushisa akufanele libe phezulu kakhulu okanye lihle kakhulu.Ukushisa okuphezulu kuya kukhokelela kwi-coefficient ephezulu yokukhuhlana.

2.4 I-Adhesive ye-Melt eshushu

Ngokuqhelekileyo khetha unyango lwendalo, kodwa ukusebenza kokubambelela emva kokunyibilika kufuneka kuqatshelwe.

3. Lawula ngokungqongqo uBushushu bokuNyanga

Ngokutsho kophando, kwinkalo yezinga lokuphendula, akukho phantse ukusabela ngaphantsi kwe-30. Ngaphezu kwama-30, rhoqo ngo-10phezulu, izinga reaction ngcono malunga 4 amaxesha.Kodwa yonaAyilunganga ukuphucula ubushushu ukukhawulezisa umyinge wokusabela ngobumfama, imiba emininzi kufuneka iqatshelwe:ireyithi yokusabela okwenyani, i-friction coefficient kunye namandla okutywinwa kobushushu.

Ukufezekisa umphumo ongcono wokuphilisa, ukushisa okuphilisayo kufuneka kuhlulwe kwiinkalo ezahlukeneyo, ngokweefilimu kunye nezakhiwo ze-lamination.

Okwangoku, iingxaki eziqhelekileyo zezi zilandelayo:

Enye, iqondo lobushushu lokunyanga liphantsi kakhulu, lenza izinga lokusabela eliphantsi, kwaye imveliso ineengxaki emva kokuvalwa kushushu okanye ibilisiwe.

Okwesibini, ubushushu bokunyanga buphezulu kakhulu kwaye ifilimu eshushu yokutywina inoxinano oluphantsi.Imveliso inomsebenzi ombi wokutywina oshushu, i-coefficient ephezulu ye-friction kunye nemiphumo emibi ye-anti-block.

4. Isiphelo

Ukufezekisa eyona mpembelelo ilungileyo yokuphilisa, ubushushu bokunyanga kunye nexesha kufuneka kugqitywe ngobushushu bemo engqongileyo kunye nokufuma, ukusebenza kwefilimu kunye nokusebenza okuncamathelayo.


Ixesha lokuposa: Apr-22-2021