Source: Noto Sans Symbols2

U+1F582 Back of Envelope

U+1F582 was added to Unicode in version 7.0 (2014). It belongs to the block U+1F300 to U+1F5FF Miscellaneous Symbols and Pictographs in the U+10000 to U+1FFFF Supplementary Multilingual Plane.

This character is a Other Symbol and is commonly used, that is, in no specific script.

The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Other Neutral and is not mirrored. In text U+1F582 behaves as Ideographic regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

An envelope is a common packaging item, usually made of thin, flat material. It is designed to contain a flat object, such as a letter or card.
Traditional envelopes are made from sheets of paper cut to one of three shapes: a rhombus, a short-arm cross or a kite. These shapes allow the envelope structure to be made by folding the sheet sides around a central rectangular area. In this manner, a rectangle-faced enclosure is formed with an arrangement of four flaps on the reverse side.

Representations

System	Representation
Nº	128386
UTF-8	F0 9F 96 82
UTF-16	D8 3D DD 82
UTF-32	00 01 F5 82
URL-Quoted	%F0%9F%96%82
HTML hex reference	🖂
Wrong windows-1252 Mojibake	ðŸ–‚

Elsewhere

Complete Record

Property	Value
Age	7.0 (2014)
Unicode Name	BACK OF ENVELOPE
Unicode 1 Name	—
Block	Miscellaneous Symbols and Arrows
General Category	Other Symbol
Script	Common
Bidirectional Category	Other Neutral
Combining Class	Not Reordered
Decomposition Type	None
Decomposition Mapping	Back of Envelope
Lowercase	✘
Simple Lowercase Mapping	Back of Envelope
Lowercase Mapping	Back of Envelope
Uppercase	✘
Simple Uppercase Mapping	Back of Envelope
Uppercase Mapping	Back of Envelope
Simple Titlecase Mapping	Back of Envelope
Titlecase Mapping	Back of Envelope
Case Folding	Back of Envelope
ASCII Hex Digit	✘
Alphabetic	✘
Bidi Control	✘
Bidi Mirrored	✘
Composition Exclusion	✘
Case Ignorable	✘
Changes When Casefolded	✘
Changes When Casemapped	✘
Changes When NFKC Casefolded	✘
Changes When Lowercased	✘
Changes When Titlecased	✘
Changes When Uppercased	✘
Cased	✘
Full Composition Exclusion	✘
Default Ignorable Code Point	✘
Dash	✘
Deprecated	✘
Diacritic	✘
Emoji Modifier Base	✘
Emoji Component	✘
Emoji Modifier	✘
Emoji Presentation	✘
Emoji	✘
Extender	✘
Extended Pictographic	✔
FC NFKC Closure	Back of Envelope
Grapheme Cluster Break	Any
Grapheme Base	✔
Grapheme Extend	✘
Grapheme Link	✘
Hex Digit	✘
Hyphen	✘
ID Continue	✘
ID Start	✘
IDS Binary Operator	✘
IDS Trinary Operator and	✘
Ideographic	✘
Indic Mantra Category	—
Indic Positional Category	NA
Indic Syllabic Category	Other
Jamo Short Name	—
Join Control	✘
Logical Order Exception	✘
Math	✘
Noncharacter Code Point	✘
NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Casefold	Back of Envelope
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Other Alphabetic	✘
Other Default Ignorable Code Point	✘
Other Grapheme Extend	✘
Other ID Continue	✘
Other ID Start	✘
Other Lowercase	✘
Other Math	✘
Other Uppercase	✘
Prepended Concatenation Mark	✘
Pattern Syntax	✘
Pattern White Space	✘
Quotation Mark	✘
Regional Indicator	✘
Radical	✘
Sentence Break	Other
Soft Dotted	✘
Sentence Terminal	✘
Terminal Punctuation	✘
Unified Ideograph	✘
Variation Selector	✘
Word Break	Other
White Space	✘
XID Continue	✘
XID Start	✘
Expands On NFC	✘
Expands On NFD	✘
Expands On NFKC	✘
Expands On NFKD	✘
Bidi Paired Bracket	Back of Envelope
Bidi Paired Bracket Type	None
East Asian Width	Neutral
Hangul Syllable Type	Not Applicable
ISO 10646 Comment	—
Joining Group	No_Joining_Group
Joining Type	Non Joining
Line Break	Ideographic
Numeric Type	None
Numeric Value	not a number
Simple Case Folding	Back of Envelope
Script Extension
Vertical Orientation	U