GREAT turmeric tutorial! My own experience tells me to expose the print until the colour fades to nothing - almost white. This can take days to happen, depending on the weather. I'm going to try my DIY cyanotype UV light box to see if I can make anthotypes more reliably. Fingers crossed!
Would fresh tumeric work better? If i wanted more detail could i expose it in a dark room with uv only? Or a combo of uv like blacklight, blu ray laser, 360nm led and florescent germ lamp. Is borax the best to use or woukd boric acid work better?
Sorry for the late reply. I have not tested fresh vs. store-bought turmeric. I use the stuff you find in the spice aisle at the grocery store. I think for detail, the main factors are going to be the sharpness of the negative, the tight contact of the negative to the paper, and the smoothness of the paper. I have not tried using a bulb because the exposures are so long (4 hours or more) in bright sun. I think with a bulb they would be much longer. And boric acid I think might be faster just because it is more active. But I have not tried it. Developing time is not long, so I don't think it's a problem to use sodium borate (Borax). Thanks for the questions. If you use boric acid and get good results or use some other light source with good results, please let me know. Good luck!
Thanks! I made the tablecloth with some students. It is a cyanotype on fabric that I coated, exposed, and processed myself. I have a tutorial on cyanotype on my page somewhere. Thanks!
Hi! I have some questions, if you were to print on a large piece of fabric would the glass be completely necessary or is it just there to press down on the negative? I’m also wondering how a piece of fabric that is printed would act if it’s washed continuously after the printing and whether it would fade or not. Thanks!
Good questions. The glass is just to press down a flat object like a negative. So it’s not necessary for the print. You could place an object on there and you would essentially record the shadow. I don’t know how this would wash. I think that turmeric is used as a fabric dye, though, so I imagine it would wash out pretty well. Maybe use a very mild soap and cold water? I would suggest experimenting in a smaller piece to test. Good luck!!
Thank you for making the image. I looked another videos about it. You need to have 2 negative of the image, and they have to be printed in laser printer. 😁
Hi. Sorry, I am just seeing this comment (two years too late is better than never, right?). Using two negatives is necessary with a laser printer but not with inkjet. The reason is that the toner from a laser printer is not as dense as the pigmented ink from an inkjet. It is also better to print using RGB colorspace even if the image is black and white. This is because the printer will lay down more ink if it is printing from an RGB file.
Thanks! That is a large cyanotype on fabric that I made. You can see other videos on my channel on how to make cyanotypes. I coated my own fabric, but you can also buy pre-treated fabric at blueprintsonfabric.com.
Hi Kathrin. I am sorry, I don't know what substitute you could use for sodium borate. I will ask someone who might know. could you buy it as sodium borate from a chemical supply company?
![[Live] ศึกมหึมันส์มวยไทยสังเวียนเดือด เวทีมวยชั่วคราวสวนสยาม | จันทร์ 30 กันยายน 2567](http://i.ytimg.com/vi/pM1k6f7JXUc/mqdefault.jpg)
Hmmm: interesting. Can see some creative possibilities here. Borax and Tumeric. Who would have thought. Thanks for this
GREAT turmeric tutorial! My own experience tells me to expose the print until the colour fades to nothing - almost white. This can take days to happen, depending on the weather. I'm going to try my DIY cyanotype UV light box to see if I can make anthotypes more reliably. Fingers crossed!
Thanks! Good luck with the light box.
Would fresh tumeric work better? If i wanted more detail could i expose it in a dark room with uv only? Or a combo of uv like blacklight, blu ray laser, 360nm led and florescent germ lamp. Is borax the best to use or woukd boric acid work better?
Sorry for the late reply. I have not tested fresh vs. store-bought turmeric. I use the stuff you find in the spice aisle at the grocery store. I think for detail, the main factors are going to be the sharpness of the negative, the tight contact of the negative to the paper, and the smoothness of the paper. I have not tried using a bulb because the exposures are so long (4 hours or more) in bright sun. I think with a bulb they would be much longer. And boric acid I think might be faster just because it is more active. But I have not tried it. Developing time is not long, so I don't think it's a problem to use sodium borate (Borax). Thanks for the questions. If you use boric acid and get good results or use some other light source with good results, please let me know. Good luck!
Very cool. Thanks! Also that table cover is so eye-catching I bet there's a cool story behind it
Thanks! I made the tablecloth with some students. It is a cyanotype on fabric that I coated, exposed, and processed myself. I have a tutorial on cyanotype on my page somewhere. Thanks!
Hi! I have some questions, if you were to print on a large piece of fabric would the glass be completely necessary or is it just there to press down on the negative? I’m also wondering how a piece of fabric that is printed would act if it’s washed continuously after the printing and whether it would fade or not. Thanks!
Good questions. The glass is just to press down a flat object like a negative. So it’s not necessary for the print. You could place an object on there and you would essentially record the shadow. I don’t know how this would wash. I think that turmeric is used as a fabric dye, though, so I imagine it would wash out pretty well. Maybe use a very mild soap and cold water? I would suggest experimenting in a smaller piece to test. Good luck!!
Thank you for making the image. I looked another videos about it. You need to have 2 negative of the image, and they have to be printed in laser printer. 😁
Hi. Sorry, I am just seeing this comment (two years too late is better than never, right?). Using two negatives is necessary with a laser printer but not with inkjet. The reason is that the toner from a laser printer is not as dense as the pigmented ink from an inkjet. It is also better to print using RGB colorspace even if the image is black and white. This is because the printer will lay down more ink if it is printing from an RGB file.
More interested in your table cloth or paper with indigo color pattern looks very subtle , how that is made?
Thanks! That is a large cyanotype on fabric that I made. You can see other videos on my channel on how to make cyanotypes. I coated my own fabric, but you can also buy pre-treated fabric at blueprintsonfabric.com.
in switzerland i can not buy borax, can i use soda? or something else?
Hi Kathrin. I am sorry, I don't know what substitute you could use for sodium borate. I will ask someone who might know. could you buy it as sodium borate from a chemical supply company?
@@mr.finkelstonsclass1072 thank you so much! i will go and ask!!
You can also use backing soda or washing soda it just needs to be something that makes your turmeric basic that's why it gets darker.