Die cutting is a key process in the manufacture of self-adhesive labels. It involves cutting labels into specific shapes and sizes that allow them to be easily applied to various surfaces. Zvisinei, the die-cutting process can encounter some challenges that affect the quality and efficiency of label production. The main factors affecting the die-cutting of self-adhesive labels can be summarized into three main aspects: label pamusoro pezvinhu, self-adhesive materials, and the equipment itself. Muchinyorwa chino, we explore these aspects and discuss potential solutions to the challenges.
1. Label surface material:
The surface material of the self-adhesive label plays a vital role in the die-cutting process. Different materials have different properties that affect the cutting process. There are three main factors: the type of surface material, kusimba kwechinhu chepamusoro, uye ukobvu hwechinhu chepamusoro.
a) Pamusoro pemhando yezvinhu:
Mhando dzemhando dzepamusoro dzinoshandiswa mune yekuzvinamira mavara dzinosiyana zvakanyanya, uye chinhu chimwe nechimwe chine hunhu hwakasiyana hunokanganisa kufa-kucheka, kunyanya kusanganisira mapepa nefirimu.
Mapepa Labels: Mapepa mapepa anowanzoshandiswa uye anouya mumhando dzakasiyana-siyana dzehuremu uye kupera. Zvisinei, dzinowanzoda kubvaruka kana kupeta panguva yekucheka kufa, kunyanya kana bepa racho rakatetepa kana kuti risina kusimba. Patinoongorora sampuli, kazhinji tinoona kuti mamwe mavara ane mabhura, iyo inokonzerwa nekutsemuka kwechisikigo nekuda kwemafiber akakora echinhu chacho. Naizvozvo, zvakakosha kuti usarudze hukobvu hwakakodzera hwepepa uye hunhu hwechishandiso chakatarwa kuti uve nechokwadi chekucheka kufa. Kubva pane iyo inofa-yekucheka musimboti wepepa zvinhu, and considering the wear of the blade, the angle of the paper flattening blade is usually relatively large. Because the angle is large, the extrusion deformation of the material during die cutting is large, and the separation force in the horizontal direction facilitates the separation of materials.
Film labels: Films place higher demands on the die-cutting process than paper materials. Commonly used film self-adhesive surface materials mainly include: PE, PP, PE, polyolefin, PVC, PS, etc., with durability, moisture resistance and chemical resistance. These materials are generally more flexible and less prone to tearing, making them suitable for intricate die-cut designs. Zvisinei, film labels are difficult to cut accurately due to their inherent elasticity or memory properties. For this reason, the blade of the die-cutting film material should have a sharp edge, kuoma kwepamusoro, uye kona duku, kazhinji 37° kusvika 75°. Iyo idiki kona, iyo inopinza blade uye zviri nyore kufa kuchekwa. Kana ukashandisa die-cutter ine kona yakakura, kwete chete zvakaoma kufa-kucheka, asi kana badza risina kupinza, chinhu chepamusoro hachizochekwa uye bepa repasi rinotanga kutsemuka, uye mupendero wechinyorwa chapedzwa uchapetwa. Kukonzera glue seepage.
Muchidimbu, iyo chaiyo yefirimu inofa yakakura kupfuura yezvigadzirwa zvemapepa, saka kufa-akachekwa firimu zvinhu zvine zvimwe zvinodiwa pakurongeka kwemidziyo, die-cut plate precision uye backing paper.
b) Kusimba kwezvinhu zvepamusoro:
Kusimba kweiyo label facestock ndechimwe chinhu chakakosha chinokanganisa kufa kwekucheka. Inoreva kukwanisa kwechigadzirwa kutsungirira simba rekucheka rinoshandiswa nemidziyo yekucheka-fa. Heano mamwe ekufunga:
Kuramba misodzi: Mapepa anoda kukwirira kwemisodzi, seaya ekushandisa mumaindasitiri kana ekunze, zvinoda kugadzirwa nezvinhu zvine simba rakakwana. Zvishandiso zvakaita semafirimu ekugadzira kana mapepa akasimbiswa zvinogona kupa iyo inodiwa kubvarura kuramba kuti uve nechokwadi chekuchenesa, kucheka chaiko panguva yekucheka kufa.
Shear Simba: Kugera simba (shear strength) zvinoreva kupokana kwechinhu pakucheka mauto anoenderana nepamusoro pacho. Mabhii ane simba rekugera rakakwirira haanyanyi kumonya kana kubvaruka panguva yekucheka-cheka. Kusarudza chinhu chine simba rekugera kwakaringana kunozoita kuti mhedzisiro uye inowirirana yekucheka kufa.
c) Hukobvu hwezvinhu zvepamusoro:
Kuenderana muhukobvu kwakakosha kuti uve nechokwadi chekudzika kwakafanana kwekucheka uye kudzivirira matambudziko senge asina kukwana kucheka kana simba rakawandisa rekucheka.. Mabhii ane hukobvu hwezvinhu zvisingaenderani anogona kukonzera mutsauko mukudzika kwekucheka, kukanganisa kunaka uye kutaridzika kweiyo kufa-cut label. Pamusoro pe, kuwanda kwezvinhu zvinokanganisa zvakananga kudzika kwekufa-kucheka. The kukora zvinhu, zviri nyore kufa-kucheka, uye neimwe nzira, iyo yakaonda iyo inofa-kucheka, zvakanyanya kuoma.
Yakasiyana yekucheka michina yekufa inogona kuve nemiganhu pahupamhi hwepamusoro hwezvinhu zvavanogona kubata. Izvo zvakakosha kuti utarise mashandisirwo emidziyo uye sarudza label zvinhu mukati meiyo yakakurudzirwa ukobvu renji kuti uve nechokwadi chakakwana chekufa-kucheka kuita..
2. Self-adhesive material
Kune maviri anowanzoshandiswa adhesives mune self-adhesive zvinhu: mvura latex uye inopisa melt adhesive.
Mvura latex inoumbwa nemapolymer particles akaparadzirwa mumvura, uye simba rakabatana riri nyore kuparadzanisa kubva mufirimu. Iyo inopisa inonyunguduka yakanamatira inoumbwa nerubber-senge zvinhu zvine kubatana kwepamusoro, uye zvakaoma kuparadzanisa mafirimu ekunamatira. Pamusana pemvura yakasimba yeadhesive inopisa-yakanyunguduka, kana zvinyorwa zvidiki zvakadhindwa pamusoro peiyo adhesive layer, iyo inonamira inoyerera kana iyo label iine diki yekusimuka panguva yekutevera kusanganisa uye kufa-kucheka maitiro., zvichiita kuti idhindwe pairi. Chinyorwa chiri pachiratidziro chinoshandurwa zvishoma, distorted, kana kudzima. Pamusoro pe, hot melt adhesives inobatwa nyore nekushisa. Kazhinji, apo tembiricha yewekishopu iri pasi pe15°C, the release force of the hot melt adhesive material will decrease rapidly. Naizvozvo, in winter, hot melt adhesive materials are particularly prone to the problem of die-cut flying marks.
Naizvozvo, it is recommended that label printing companies try not to choose hot-melt adhesive materials with strong fluidity, but choose water-sol materials with relatively weak fluidity. Panguva imwe, even if you choose a hydrosol material, you must also pay attention to the coating thickness of the adhesive layer. Because whether it is hot melt adhesive or hydrosol material, if the adhesive coating is too thick, it may cause the adhesive to flow slightly, causing the small text printed on it to be deformed.
3. The equipment itself
The precision and alignment of a die cutter is critical to achieving precise and consistent cuts. Muchina uyu unofanirwa kucheneswa uye kurongeka kuti uve nechokwadi chekumisikidzwa kwechishandiso chekucheka uye zvitoro zvezita. Mamiriro ezvinhu asina kunaka anogona kukonzera kucheka kusina kukwana, zvimiro zvisina kujairika, kana mavara asina kurongeka, izvo zvinogona kukanganisa huwandu hwese hwechinyorwa chakapedzwa. Kugara uchigadzirisa uye kugadzirisa kwemuchina uye kutevedzera kurudziro yemugadziri kunodiwa kuti uchengetedze kurongeka kwakanyanya uye kurongeka..
Zvakare, iyo yekucheka kudzvanywa uye yekumhanyisa marongero pane inofa cutter inoda kugadziridzwa zvakafanira kune chaiyo label stock uye adhesive ari kushandiswa.. Kusakwana kwekucheka kudzvinyirira kunogona kukonzera kucheka kusina kukwana kana kuoma kuparadzanisa label kubva kune liner. Kunyanya kucheka kudzvinyirira kunogona kukanganisa, kubvarura kana kukuvadza mavara. Saizvozvowo, kumhanya kwekucheka kunoda kuvandudzwa kuti ive nechokwadi chekucheka kwakachena pasina kukanganisa chokwadi. Kurongeka kwakaringana kwekucheka kudzvanywa uye kumhanyisa paramita yakavakirwa pane label zvinhu uye inonamira zvivakwa zvakakosha kuti uwane inowirirana uye yemhando yepamusoro-yekucheka kufa-yekucheka mhedzisiro..
Unhu uye mamiriro ezvishandiso zvekucheka zvinoshandiswa mufa-cutter zvine simba guru pakufa-kucheka maitiro. Mashizha ekucheka akasvibira kana akakuvadzwa anogona kuguma nehurombo hwakachekwa, kuwedzera simba rekucheka zvinodiwa, kana kukanganisa kuisa zvinyorwa. Kugara uchiongorora uye kugadzirisa midziyo yekucheka, kusanganisira kuchinja mashizha kana zvichidiwa, zvakakosha kuti uve nechokwadi chekucheka kwakanyanya. Kushandisa blade yemhando uye kufunga nezve chaiyo blade dhizaini yelabel zvinhu zviri kushandiswa zvinogonawo kunatsiridza kufa-kucheka kwekufa uye kunyatsoita..
Nekutarisa aya maficha uye nekushandisa mhinduro dzakakurudzirwa, vagadziri vanogona kukunda matambudziko ekucheka kufa uye kuwana zvinowirirana, chaiwo uye emhando yepamusoro-self-adhesive labels. Kudyidzana nevanotengesa zvinhu, vagadziri vanonamatira, vanogadzira mold uye nyanzvi dzemidziyo vanogonawo kupa ruzivo rwakakosha uye rutsigiro rwekugadzirisa nzira yekucheka kufa. Kuburikidza nekutarisisa kune zvakadzama uye kuenderera mberi kwekuvandudza, vagadziri vanogona kuve nechokwadi chekugadzirwa kwakanaka uye kusangana nezvinodiwa zvakasiyana-siyana zvekunyora zvinyorwa.
