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We report the IR properties of planetary nebulae with WR type and $wels$central stars known to date and compare them with the IR properties of a sampleof PNe with H-rich central stars. We use near-, mid- and far-IR photometricdata from archives to derive the IR properties of PNe. We have constructed IRcolour-colour diagrams of PNe using measurements from $2MASS$, $IRAS$, $WISE$and $Akari$ bands. [WR] PNe have a larger near-IR emission from the hot dustcomponent and also show a tendency for stronger 12$\mu$m emission as comparedto the other two groups. Cool AGB dust properties of all PNe are found to besimilar. We derived the dust colour temperatures, dust masses, dust-to-gas massratios, IR luminosities and IR excess of PNe for these three groups. [WR] PNeand $wels$-PNe tend to have larger mean values for dust mass when compared tothe third group. The average dust-to-gas mass ratio is found to be similar forthe three groups of PNe. While there is a strong correlation of dusttemperature and IR luminosity with the age for the three groups of PNe, thedust mass, dust-to-gas mass ratios and IR excess are found to be non-varying asthe PNe evolve. [WR] PNe and $wels$-PNe show very similar distribution ofexcitation classes and also show similar distribution with Galactic latitude.

Infrared properties of Planetary Nebulae with [WR] and $wels$ central stars