1. Peann monacrómach
Peann uisce dath monacrómatach, comhdhéanta de thrí chuid: an bairille, an nib agus an athlíonadh. Líontar uisce datha d'aon dath san athlíonadh.
2. Peann daite dhá-dath
Baineann an tsamhail áirgiúlachta le peann uisce dhá dhath, atá comhdhéanta de thrí chuid: coimeádán peann, barr peann agus croí peann. Tá barr an phinn roinnte ina dhá chuid, is féidir a bheith ina struchtúr involute nó ina struchtúr neadaithe. Dá réir sin, roinntear an athlíonadh peann ina dhá chuid freisin, is féidir a bheith i struchtúr involute nó i struchtúr neadaithe freisin. Líontar an dá pháirt athlíonadh le dhá uisce datha ar dhathanna éagsúla. Tá struchtúr simplí ag an peann uisce dhá dhath seo, agus tá dhá dhath ar leith ag na strócanna scríofa ag an am céanna, rud a fhágann go bhfuil ciall tríthoiseach ag an gcló. .
3. Peann ildathanna
The multi-color water pen is made by embedding three or more refills in the through holes of the pen head mold according to the design requirements, and injecting plastic resin into the whole with an injection molding machine. The roll core with a tight isolation cover is fixed in the pen barrel with a gasket, the revised pen head is embedded in the pen neck end of the pen barrel, the pen core is inserted into the roll core through the through hole on the gasket to absorb the ink, and then the cover is closed. Use adhesive to seal with the pen barrel, the refill and the gasket to prevent color mixing, and install a color ring at the end of the pen. Combining multiple refills in one pen head can write different colors separately, and it will not mix colors or mix colors when placed. It is suitable for mechanized mass production, and is used for beautiful work paintings and teachers' lectures.
