1940-1949, light green dress with grape motif, rayon fabric

Source: The Ohio State University, http://fashion2fiber.osu.edu/items/show/1748
{|
Note: Identification of fiber content is not achievable by a single image alone, It is essential to look at the accumulation of evidence provided by a series of images , each employing different microscopic techniques. The following set of images also shows the use of microsolubility as a confirmatory test. 
001.1986.111.29.08-22-2014.BF.200X.MM.rayonUNK.dressfabricwarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, bright field, 200X
Image Identification information	001.1986.111.29.08-22-2014.BF.200X.MM.rayonUNK.dressfabricwarp
Image capture 	digital
Date of image capture 	08/22/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Brightfield
Fiber size 	medium fiber diameter
Striations 	striations apparent
delustrant 	present
comments 	confirmation as rayon not possible from single image
001.1986.111.29.08-22-2014.BF.200X.MM.rayonUNK.greenfabricwarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	rayon fiber, Brightfield, 200X
Image Identification information	001.1986.111.29.08-22-2014.BF.200X.MM.rayonUNK.greenfabricwarp
Image capture 	digital
Date of image capture 	08/22/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Brightfield
Fiber size 	medium fiber diameter
Striations 	striations apparent
delustrant 	present
002.1986.111.29.08-22-2014.POL.200X.MM.rayonUNK.dressfabricwarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, polarized light, 200X
Image Identification information	002.1986.111.29.08-22-2014.POL.200X.MM.rayonUNK.dressfabricwarp
Image capture 	digital
Date of image capture 	08/22/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light
Fiber size 	medium fiber diameter
Striations 	apparent
delustrant 	present
Comments 	low orders of color under polarized light
002.1986.111.29.08-22-2014.POL.200X.MM.rayonUNK.greenfabricwarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, polarized light, 200X
Image Identification information	002.1986.111.29.08-22-2014.POL.200X.MM.rayonUNK.greenfabricwarp
Image capture 	digital
Date of image capture 	08/22/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light
Fiber size 	medium fiber diameter
Striations 	apparent
delustrant 	present
Comments 	low orders of color under polarized light
003.1986.111.29.08-22-2014.DIC..200X.MM.rayonUNK.dressfabricwarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, differential interference contrast, 200X
Image Identification information	003.1986.111.29.08-22-2014.DIC..200X.MM.rayonUNK.dressfabricwarp
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Differential interference contrast
Fiber size 	medium fiber diameter
Striations 	present
Comments 	low orders of color
003.1986.111.29.08-22-2014.DIC..200X.MM.rayonUNK.greenfabricwarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, differential interference contrast, 200X
Image Identification information	003.1986.111.29.08-22-2014.DIC..200X.MM.rayonUNK.greenfabricwarp
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Differential interference contrast
Fiber size 	medium fiber diameter
Striations 	present
Comments 	low orders of color
004.1986.111.29.08-22-2014.POLFOR.200X.MM.rayonUNK.greenfabricwarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, Polarized light, first order red added, 200X
Image Identification information	004.1986.111.29.08-22-2014.POLFOR.200X.MM.rayonUNK.greenfabricwarp
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light, first order red added
Fiber size 	medium fiber diameter
Striations 	present
Sign of elongation 	positive sign of elongation
004.1986.111.29.08-22-2014.POLFOR.200X.MM.rayonUNK.dressfabricwarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, polarized light, first order red added, 200X
Image Identification information	004.1986.111.29.08-22-2014.POLFOR.200X.MM.rayonUNK.dressfabricwarp
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light, first order red added
Fiber size 	medium fiber diameter
Striations 	difficult to see
Sign of elongation 	positive sign of elongation. Subtraction color achieved when fiber is oriented perpendicular to the optic axis of the first order red plate.
005.1986.111.29.08-22-2014.POLFOR.200X.MM.rayonUNK.greenfabricwarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, Polarized light, first order red added, 200X
Image Identification information	005.1986.111.29.08-22-2014.POLFOR.200X.MM.rayonUNK.greenfabricwarp
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light, first order red added
Fiber size 	medium fiber diameter
Striations 	difficult to see
Sign of elongation 	positive sign of elongation. Addition color achieved when fiber is oriented parallel to optic axis of first order red plate.
006.1986.111.29.08-22-2014.BF.200X.acetone.rayonandcotton.dressfabricwarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, brightfield, 200X
Image Identification information	006.1986.111.29.08-22-2014.BF.200X.acetone.rayonandcotton.dressfabricwarp
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Brightfield
Fiber size 	medium fiber diameter
Striations 	present
Comments 	Fibers were treated with acetone, but did NOT dissolve, therefore shown to be rayon, not acetate.
Note 	although a single fiber appears with a twisting cross section typical of cotton, this is the only cotton which was found in the specimens examined. Presence of a single fiber of cotton is insufficient to support identification of cotton as a component of this fabric, since cotton is ubiquitous.
001.1986.111.29.08-22-2014.BF.200X.MM.rayonUNK.dressfabricweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, brightfield, 200X, weft speciment
Image Identification information	001.1986.111.29.08-22-2014.BF.200X.MM.rayonUNK.dressfabricweft
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Brightfield
Fiber size 	medium fiber diameter
Striations 	present
Delustrant 	delustrant apparent
001.1986.111.29.08-22-2014.BF.200X.MM.rayonUNK.greenfabricweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, brightfield, 200X, weft specimen
Image Identification information	001.1986.111.29.08-22-2014.BF.200X.MM.rayonUNK.greenfabricweft
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Brightfield
Fiber size 	medium fiber diameter
Striations 	present
Delustrant 	delustrant present
002.1986.111.29.08-22-2014.POL.200X.MM.rayonUNK.dressfabricweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, polarized light, 200X, weft specimen
Image Identification information	002.1986.111.29.08-22-2014.POL.200X.MM.rayonUNK.dressfabricweft
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light
Fiber size 	medium fiber diameter
Striations 	present
Comments 	low orders of color
002.1986.111.29.08-22-2014.POL.200X.MM.rayonUNK.greenfabricweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, polarized light, 200X, weft specimen
Image Identification information	002.1986.111.29.08-22-2014.POL.200X.MM.rayonUNK.greenfabricweft
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light
Fiber size 	medium fiber diameter
Striations 	present
Comments 	low orders of color
003.1986.111.29.08-22-2014.DIC..200X.MM.rayonUNK.dressfabricweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, differential interference contrast, 200X, weft specimen
Image Identification information	003.1986.111.29.08-22-2014.DIC..200X.MM.rayonUNK.dressfabricweft
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Differential interference contrast
Fiber size 	medium fiber diameter
Striations 	present
Comments 	low orders of color
003.1986.111.29.08-22-2014.DIC..200X.MM.rayonUNK.greenfabricweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, differential interference contrast, 200X
Image Identification information	003.1986.111.29.08-22-2014.DIC..200X.MM.rayonUNK.greenfabricweft
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Differential interference contrast
Fiber size 	medium fiber diameter
Striations 	present
Comments 	low orders of color
004.1986.111.29.08-22-2014.POLFOR.200X.MM.rayonUNK.dressfabricweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, polarized light, first order red plate added, 200X, weft specimen
Image Identification information	004.1986.111.29.08-22-2014.POLFOR.200X.MM.rayonUNK.dressfabricweft
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light, first order red plate added
Fiber size 	medium fiber diameter
Striations 	present
Sign of elongation 	Positive sign of elongation . Addition color achieved when fiber is oriented parallel to optic axis of first order red plate. Subtraction color achieved when fiber is oriented perpendicular to optic axis of first order red plate.
004.1986.111.29.08-22-2014.POLFOR.200X.MM.rayonUNK.greenfabricweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.1986.111.29
Title 	Rayon fiber, polarized light, first order red plate added, 200X, weft specimen
Image Identification information	004.1986.111.29.08-22-2014.POLFOR.200X.MM.rayonUNK.greenfabricweft
Image capture 	digital
Date of image capture 	08/22/2014
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light, first order red plate added
Fiber size 	medium fiber diameter
Striations 	present
Sign of elongation 	Positive sign of elongation . Addition color achieved when fiber is oriented parallel to optic axis of first order red plate. Subtraction color achieved when fiber is oriented perpendicular to optic axis of first order red plate.
{| 
 Category:FRIL
Category: FRIL: Rayon
Category: FRIL: Manufactured Fibers