Tables

Acid dyes

Tables 1 (a) - 1 (d) show light and water fastness ratings of some acid dyes on iraca straw and jippi-jappa, big thatch, pandanus, and vetiver grass respectively. The dyes are a selection from the following ranges:

'Acilan' (Bayer)
'Alizarine' (Bayer)
'Benzyl' (Ciba-Geigy)
'Coomassie' (ICI)
'Daramene' (ICI)
'Erio' (Ciba-Geigy)
'Erionyl' (Ciba-Geigy)
'Isolan' (Bayer)
'Lissamine' (ICI)
'Nylomine' (ICI)
'Supramin' (Bayer)
'Supranol' (Bayer)

The number of dyes evaluated on big thatch was greater than for the other materials investigated. This does not imply that dyes listed only under big thatch are unsuitable for use on other materials. However, for jippi-jappa very few acid dyes, other than those in the table, will be suitable.

Anomalies between the depth of shade and the amount of dye used are the result of using different wetting agents.

Straw material is processed into narrow strips before dyeing. The heavy stains produced on the cotton and wool cloths in water fastness testing were invariably from the split edge of the strips. Considerable improvement in water fastness can be achieved if the straws are dyed before being processed into strips, but this wastes dye as some parts of the leaves will be discarded.

Table 1(a) - Acid dyes on iraca straw and jippi-jappa

Table 1(b) - Acid dyes on big thatch

Table 1(b) - Acid dyes on big thatch (continued)

Table 1(c) - Acid dyes on pandanus

Table 1(c) - Acid dyes on pandanus (continued)

Table 1(d) - Acid dyes vetivar grass

Table 1(d) - Acid dyes vetivar grass (continued)

Basic dyes

Tables 2(a) - 2(d) show light and water fastness ratings of some basic dyes on iraca straw and jippi-jappa, big thatch, pandanus, and vetiver grass respectively. The dyes are a selection from the following ranges:

'Astrazon' (Bayer)
'Maxilon' (Ciba-Geigy)
'Sandocryl (Sandoz)
'Sevron' (Dupont)
'Synacril (ICI)

Also included are some basic dyes which retain their traditional names (e.g. Safranine).

The number of dyes evaluated on iraca straw and jippi-jappa was greater than for the other materials investigated. This does not imply that dyes listed only under iraca straw and jippi-jappa are unsuitable for use on other materials. Experience has shown that basic dyes, almost without exception, will readily dye leaf and straw materials. However, the properties of the colours vary with material and poor light fastness on some materials is likely to restrict the usefulness of some of the dyes.

Table 2(a) - Basic dyes on iraca straw and jippi-jappa

Table 2(a) - Basic dyes on iraca straw and jippi-jappa (continued)

Table 2(b) - Basic dyes on big thatch

Table 2(c) - Basic dyes on pandanus

Table 2(c) - Basic dyes on pandanus (continued 1)

Table 2(c) - Basic dyes on pandanus (continued 2)

Table 2(d) - Basic dyes vetiver grass

Disperse dyes

Tables 3(a) - 3(c) show light and water fastness ratings of some disperse dyes on iraca straw and jippi-jappa, big thatch, and pandanus respectively. The dyes are a selection from the following ranges:

'Artisil' (Sandoz)
'Cibacet' (Ciba-Geigy)
'Dispersol' (ICI)
'Foron' (Sandoz)
'Resolin' (Bayer)

Ratings of some reactive disperse dyes from the 'Procinyl' (ICI) range used as ordinary disperse dyes are included in the tables.

The number of dyes evaluated on iraca straw and jippi-jappa was greater than for the other materials investigated. This does not imply that dyes listed only under iraca straw and jippi-jappa are unsuitable for use on other materials. Neither does the absence of information about disperse dyes on vetiver grass imply that they are unsuitable for this material. Experience has shown that a large number of disperse dyes are suitable for leaf and straw materials. However, the depth of colour obtained is often weak and the fastness properties variable.

Table 3(a) - Disperse dyes on iraca straw and jippi-jappa

Table 3(a) - Disperse dyes on iraca straw and jippi-jappa (continued)

Table 3(b) - Disperse dyes on big thatch

Table 3(c) - Disperse dyes on pandanus

Table 4 shows light and water fastness ratings of some acid, basic, direct and disperse dyes on processed coconut leaf. The dyes are a limited selection from the following ranges:

'Astrazon' (Bayer)
'Dispersol' (ICI)
'Durazol' (ICI)
'Isolan' (Bayer)
'Lissamine'(ICI)
'Nylomine' (ICI)

Table 4 - Dyes evaluated on processed coconut leaf

Table 5 - Near equivalents of withdrawn dyes (available April 1982)

Table 5 - Near equivalents of withdrawn dyes (available April 1982) (continued 1)

Table 5 - Near equivalents of withdrawn dyes (available April 1982) (continued 2)