1940-1949, 1940s Peach Evening Gown and Jacket, acetate fiber

Source: Ohio State University Historic Costume & Textiles Collection, http://fashion2fiber.osu.edu/items/show/1806
Note: in some cases, identification of fiber content is not achievable by a single image alone. It may be necessary to look at the accumulation of evidence provided by a series of images , each employing different microscopic techniques. The following set of images were indicative of acetate fiber but this was confirmed by a microsolubility test; a fiber specimen dissolved in acetone. 
001.2001.20.1b.8-08-2014.BF.200X,MM.unk.dressweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.2001.20.1
Title 	acetate fiber, bright field, 200X
Image Identification information	001.2001.20.1b.8-08-2014.BF.200X,MM.unk.dressweft
Image capture 	digital
Date of image capture 	08/08/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Brightfield
Striations 	no striations apparent
delustrant 	apparent
comments 	confirmation as acetate not possible from single image
002.2001.20.1b.8-08-2014.POL.200X,MM.unk.dressweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.2001.20.1
Title 	acetate fiber, polarized light, 200X
Image Identification information	002.2001.20.1b.8-08-2014.POL.200X,MM.unk.dressweft
Image capture 	digital
Date of image capture 	08/08/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light
Striations 	no striations apparent
delustrant 	apparent
comments 	low polarization color
003.2001.20.1b.8-09-2014.BF.200X,MM.unk.dressweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.2001.20.1
Title 	acetate fiber, bright field, 200X
Image Identification information	003.2001.20.1b.8-09-2014.BF.200X,MM.unk.dressweft
Image capture 	digital
Date of image capture 	08/09/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Brightfield
Striations 	no striations apparent
delustrant 	apparent
comments 	confirmation as acetate not possible from single image
004.2001.20.1b.8-09-2014.DIC.200X,MM.unk.dressweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.2001.20.1
Title 	acetate fiber, differential interference contrast, 200X
Image Identification information	004.2001.20.1b.8-09-2014.DIC.200X,MM.unk.dressweft
Image capture 	digital
Date of image capture 	08/09/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	differential interference contrast
Striations 	some striations apparent
delustrant 	apparent
comments 	low polarization color
004.2001.20.1b.8-09-2014.POL.200X,MM.unk.dressweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.2001.20.1
Title 	acetate fiber, polarized light, 200X
Image Identification information	004.2001.20.1b.8-09-2014.POL.200X,MM.unk.dressweft
Image capture 	digital
Date of image capture 	08/09/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light
Striations 	some striations apparent
delustrant 	apparent
comments 	low polarization color
005.2001.20.1b.8-09-2014.POLFOR.200X,MM.unknegative.dressweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.2001.20.1
Title 	acetate fiber, polarized light, first order red plate added, 200X
Image Identification information	005.2001.20.1b.8-09-2014.POLFOR.200X,MM.unknegative.dressweft
Image capture 	digital
Date of image capture 	08/09/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light, first order red plate added
Striations 	no striations apparent
delustrant 	apparent
sign of elongation 	subtraction color perpendicular to long axis of first order red plate, positive sign of elongation
sign of elongation 	addition color parallel to long axis of first order red plate, positive sign of elongation
006.2001.20.1b.8-09-2014.DIC.200X,MM.unknegative.dressweft	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.2001.20.1
Title 	acetate fiber, differential interference contrast, 200X
Image Identification information	006.2001.20.1b.8-09-2014.DIC.200X,MM.unknegative.dressweft
Image capture 	digital
Date of image capture 	08/09/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	differential interference contrast
Striations 	some striations apparent
delustrant 	apparent
comments 	low polarization color
001.2001.20.1b.8-09-2014.BF.200X,MM.unk.dresswarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.2001.20.1
Title 	acetate fiber, bright field, 200X
Image Identification information	001.2001.20.1b.8-09-2014.BF.200X,MM.unk.dresswarp
Image capture 	digital
Date of image capture 	08/09/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Brightfield
Striations 	some striations apparent
delustrant 	apparent
comments 	confirmation as acetate not possible from single image
001.2002.20.1b.8-09-2014.POL.200X,MM.unk.dresswarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.2001.20.1
Title 	acetate fiber, polarized light, 200X
Image Identification information	001.2002.20.1b.8-09-2014.POL.200X,MM.unk.dresswarp
Image capture 	digital
Date of image capture 	08/09/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light
Striations 	some striations apparent
delustrant 	apparent
comments 	low polarization color
003.2002.20.1b.8-09-2014.POLFOR.200X,MM.unknegative.dresswarp	
{| Class="wikitable" border="1" style="border-collapse:collapse;"
Source 	manufactured
Accession Number 	HCT.2001.20.1
Title 	acetate fiber, polarized light, first order red plate added, 200X
Image Identification information	003.2002.20.1b.8-09-2014.POLFOR.200X,MM.unknegative.dresswarp
Image capture 	digital
Date of image capture 	08/09/14
Microscopist 	K. Jakes
Microscope 	Zeiss Axioplan
Mounting agent and RI 	Meltmount RI 1.539
Microscopic technique 	Polarized light, first order red plate added
Striations 	no striations apparent
delustrant 	apparent
sign of elongation 	addition color parallel to long axis of first order red plate, positive
{| 
 Category:FRIL
Category: FRIL: Acetate
Category: FRIL: Manufactured Fibers