कला
सुन्दरता र कल्याण
हस्तकला
संस्कृति र इतिहास
मनोरञ्जन
वातावरण
खाना र पेय
रिभर्स इन्जिनियरिङ
विज्ञान
खेलकुद
प्रविधि
पहिर्न मिल्ने
Bromide Paper: Gelatino-Bromide Emulsion Coated on Paper
Bromide paper is paper coated with silver bromide in gelatin, the printing and enlarging paper of the darkroom. Thorpe (1913) gives a beginner's emulsion: gelatin swelled in potassium bromide solution, silver nitrate made clear with strong ammonia, the two joined under ruby light, ripened, set, washed, and spread on paper as on a glass plate. From the moment the silver goes in, work only by ruby light. Grain and ounce figures are Thorpe's; the gram conversions and the 10-sheet batch are ours.
The picture: our own drawing.
उन्नत
4 days
निर्देशनहरू
1
1
Swell the gelatin
Swell the gelatin
Dissolve 185 grains (12.0 g) of potassium bromide in 5 oz (142 ml) of water. Cover 300 grains (19.4 g) of hard gelatin with it and stir until it softens and swells.
यस चरणका सामग्री:
पोटासियम ब्रोमाइड12 ग्राम
जिलेटिन धूलो19.4 ग्रामचाहिने औजार:
पानी
सिसाको बिकर
सिसाको चलाउने डण्डी
समभुज तराजु2
2
Dissolve the silver
Dissolve the silver
Dissolve 231 grains (15.0 g) of silver nitrate in 5 oz (142 ml) of water with gentle heat in the water bath. Add strong ammonia (0.880) a little at a time, stirring, until the precipitate that first forms dissolves again.
यस चरणका सामग्री:
सिल्भर नाइट्रेट15 ग्रामचाहिने औजार:
पानी
कडा अमोनिया घोल (0.880)सिसाको बिकरसिसाको चलाउने डण्डी
ठूलो भाँडो (तल्लो, पानीको बाथका लागि)3
3
Melt the gelatin, never above 35 °C
Melt the gelatin, never above 35 °C
Stand both vessels in the pan of water, never above 35 °C, stirring, until the gelatin is perfectly liquid. Up to here ordinary light is fine.
चाहिने औजार:
ठूलो भाँडो (तल्लो, पानीको बाथका लागि)
तापमापकसिसाको चलाउने डण्डी4
4
Add the silver under ruby light
Add the silver under ruby light
From now on, ruby light only. Pour the silver solution into the gelatin in a thin stream, stirring all the time. Rinse the silver beaker with about 1 oz (28 ml) of warm water into the emulsion.
चाहिने औजार:
रुबी सेफलाइटसिसाको बिकरसिसाको चलाउने डण्डीपानी5
5
Ripen
Ripen
Leave the emulsion in the hot water for half to three-quarters of an hour.
चाहिने औजार:
ठूलो भाँडो (तल्लो, पानीको बाथका लागि)रुबी सेफलाइट6
6
Set in the dark
Set in the dark
Pour it into a flat dish, put it in a light-tight box and let it set for at least 24 hours; two or three days is better.
चाहिने औजार:
उथला सेरामिक थाल
उज्यालो नछिर्ने बाकस7
7
Wash through canvas
Wash through canvas
Scrape the set jelly onto wet coarse canvas and tie it into a bag. Knead it under water so it squeezes through in threads. Pour off the water, cover with fresh, wait 5 minutes and pour off: six to eight times.
चाहिने औजार:
पन्यु
क्यानभास कपडा
डोरीपानीरुबी सेफलाइट8
8
Drain and store
Drain and store
Turn the threads onto a strainer covered with a cloth and let the water drain. Rinse with methylated spirit and keep in a lidded jar until coating.
चाहिने औजार:
चाल्नी
मलमलको कपडा
विकृत मदिरा
बिर्को भएको सिसाको भाँडोरुबी सेफलाइट9
9
Coat the paper
Coat the paper
Melt the emulsion in the warm water bath. Lay a sheet of paper flat on a levelled glass slab. Pour emulsion on the middle to cover nearly half the sheet, and spread it to each end with a glass rod 2 inches wider than the sheet, held just off the surface.
यस चरणका सामग्री:
कागज10 पानाचाहिने औजार:
ठूलो भाँडो (तल्लो, पानीको बाथका लागि)
सिसाको पाता
तह मिलाउने यन्त्रसिसाको चलाउने डण्डीरुबी सेफलाइट10
10
Dry
Dry
When the coat has set, move the sheets to a rack in a drying box with a current of air. They dry in 12 to 48 hours. Keep them in the light-tight box.
चाहिने औजार:
सुकाउने र्याकउज्यालो नछिर्ने बाकससामग्री
4- 12 ग्रामप्लेसहोल्डर
- 19.4 ग्रामप्लेसहोल्डर
- 15 ग्रामप्लेसहोल्डर
- 10 पानाप्लेसहोल्डर
आवश्यक उपकरणहरू
20- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
- प्लेसहोल्डर
यो खाकाले बनाउँछ
सम्बन्धित ब्लुप्रिन्ट
यी ब्लुप्रिन्टहरूले ज्ञान साझा गर्छन् — प्रविधि, सामग्री वा सिद्धान्त
CC0 सार्वजनिक डोमेन
यो ब्लुप्रिन्ट CC0 अन्तर्गत जारी गरिएको छ। तपाईं अनुमति नसोधी प्रतिलिपि, परिमार्जन, वितरण र प्रयोग गर्न सक्नुहुन्छ।
ब्लुप्रिन्ट मार्फत उत्पादनहरू किनेर सिर्जनाकर्तालाई सहयोग गर्नुहोस् सिर्जनाकर्ता कमिसन विक्रेताले तोकेको, वा यो ब्लुप्रिन्टको नयाँ संस्करण बनाउनुहोस् र आम्दानी बाँड्न आफ्नो ब्लुप्रिन्टमा जडानको रूपमा समावेश गर्नुहोस्।