Ndeapi maratidziro ekuita kwe meltblown & spunbonded nonwoven jira

Ndeapi maratidziro ekuita kwemeltblown & spunbonded nonwoven fabric?

1.Uniformity

Kufanana kunoratidzwa ne discrete coefficient CV kukosha kwehuwandu hwehuwandu, iyo inoratidza kusaenzana kugoverwa kwefiber mesh (yakakora uye yakatetepa) yechigadzirwa. Iyo yakakura iyo CV kukosha, yakaipisisa kunaka kwechigadzirwa. Kazhinji, iyo yakakura kukosha kwehuwandu hwechigadzirwa, iyo idiki kukosha kweCV. Kukosha kweCV kuri mu "%". Quantitative, iyo inotsanangurwa sehuremu (mhando) yechigadzirwa panzvimbo yeyuniti, uye chikamu chemutemo chekuyera muChina g/m2 kana g/m2.

2.Powerful

Simba rinoreva simba guru rinodiwa kuputsa chigadzirwa panguva yekuedzwa kwesimba (tensile), uye chikwata chiri N. Iyo yakakura simba, zviri nani kunaka kwechigadzirwa. Simba harina kungoenderana nehuwandu hwehuwandu hwechigadzirwa (iyo yakawanda yakawanda, iyo yakakura simba), asiwo ine chokuita nekunetseka kutungamirirwa kwechigadzirwa.

Mafambiro echigadzirwa anowanzo kupatsanurwa mumhando mbiri: iyo inomhanya dhizaini yekugadzira tambo (inonzi MD) uye yakachinjika kutungamira (iyo nzira yakanangana nekumhanya kweiyo nonwoven yekugadzira mutsara, inonzi CD). Neakasiyana mesh yekuisa nzira dzinoshandiswa mumutsara wekugadzira, iyo anisotropic phenomenon iripo mune zvakajairika zvigadzirwa. Semuyenzaniso, iyo MD inotungamira simba rezvigadzirwa zvine longitudinal mesh kuisa ichave yakakura, uye iyo MD simba reimwe mitsetse yekugadzira inogona kuita kaviri kana kutopfuura iyo yeCD. Kusimba kwechigadzirwa chimwe chete kwakasiyanawo nenzira dzakasiyana. Muchishandiso chinoshanda, zvinotarisirwa kuti iyo longitudinal uye transverse simba iri pedyo kune mumwe nemumwe, kuitira kuti chigadzirwa ive isotropic.

3.Elongation panguva yekuzorora

Elongation at break zvinoreva chiyero chechikamu chekurebesa chechigadzirwa kusvika pakureba kwekutanga kwesample panguva yekuyedzwa kwekusimba. Iyo unit yekurebesa panguva yekuzorora ndeye "%". Kana iyo mhando yechigadzirwa yakanaka uye iyo fiber yakanyatso kukweverwa, iyo elongation panguva yekuzorora iri pasi pe100%; Kurebesa pakuputika kwejira rakanyungudutswa idiki, kazhinji isingasviki 50%.

Nekuti kutyora kwesimba kwechigadzirwa kwakasiyana munzira mbiri, kutyora kureba kweMD neCD kwakasiyanawo. Munzvimbo zhinji dzekushandisa, iyo idiki kurebesa panguva yekuzorora, zviri nani, uye kurebesa panguva yekuzorora munzira dzakasiyana kunofanirwa kunge kuri pedyo sezvinobvira.

4.Permeability

Permeability indekisi inoratidza kugona kwehydrophilic kwechigadzirwa mukutenderera uye kunyungudika hutsanana zvinhu, izvo zvinoratidza kugona kwemvura kupfuura nemuchigadzirwa (nekukurumidza uye zvishoma). Iyo permeability inogona kukamurwa kuita imwe-nguva permeability uye akawanda permeability. Iyo ipfupi nguva, zviri nani.

5.Hydrostatic pressure (HSH)

Muzvinhu zvehutsanana, hydrostatic pressure indekisi inoratidza kuvharidzira kugona kwezvigadzirwa, izvo zvinoratidza kugona kwezvigadzirwa kutakura imwe dzvinyiriro (hydrostatic pressure) mvura. Chiyero chekuyera "mm mvura column" kana "cm mvura column", dzimwe nguva inoratidzwa nePA (PA), iyo yakakura kukosha, zviri nani. Iyo hydrostatic pressure ye15 g / m2 hutsanana zvinhu inofanira kunge iri 150 mm mvura column. Kune mhando imwechete yechigadzirwa, iyo yakakura ration, iyo yakakwirira iyo hydrostatic pressure.

6.Air permeability

Air permeability indekisi kana nonwovens achishandiswa segasi kusefa zvinhu. Iyo inoratidzira gasi permeability yemativi ese echigadzirwa pasi pemamiriro ekutsanangurwa kudzvanywa musiyano. Iyo inoratidzirwa negasi permeability pane imwe unit nguva. Kukwira kwemhepo kupinza kuri kuita, zvinoita nyore kuti gasi richipfuura nemumucheka usina kuruka.

7.Antistatic

Antistatic pfuma ndiyo indekisi ye dissipative static simba rekuruka uye kunyunguduka zvigadzirwa. Iyo iri nani iyo antistatic performance, iyo shoma electrostatic inogona kuunganidza pachigadzirwa, iyo inokwirisa kuchengetedzwa kwechigadzirwa. The antistatic performance inowanzo ratidzwa nepamusoro vhoriyamu kuramba, mu ohm(Ω)。 Iyo idiki yekudzivirira kwepasi, ndizvo zvirinani kuita kweantistatic. Dzimwe nguva, iyo static hafu yehupenyu (s), kana pamusoro pechaji huwandu hunoshandiswa kuratidza antistatic kuita kwechigadzirwa. Iyo ipfupi yehafu yehupenyu kana kushoma kwepamusoro kubhadharisa, zviri nani kuita kweantistatic.