Japanese Laundry Care Symbols: Reading the Sentaku Hyōji Label

Japanese care labels, sentaku hyōji (洗濯表示), use five shapes in fixed order: washtub for washing, triangle for bleach, square for drying, iron for ironing, circle for professional cleaning; numbers and dots set maximum heat, lines mean gentler, a cross forbids.

What you need to know

Japanese Laundry Care Symbols: Reading the Sentaku Hyōji Label

Turn a T-shirt inside out in Japan and you find a row of small pictures with no words. Since 1 December 2016 Japan has used the same care symbols as the international ISO system, under the industrial standard JIS L 0001, and the standard was revised in August 2024 to follow a new ISO edition. The organising idea: every symbol states a limit, the harshest treatment the garment can take without lasting damage. Five shapes stand for five kinds of care, always in the same order. A number or dots set the maximum heat, a line underneath makes the treatment gentler, and a cross rules it out. This article decodes each shape, reads a whole label, covers the Japanese notes beside the symbols and the 2024 changes, shows the older kanji symbols, and ends with the mistakes that shrink jumpers.

Five shapes: wash, bleach, dry, iron and professional cleaning, in order

Numbers and dots are maximum temperatures, not recommended ones

Each line under a symbol means a gentler treatment

Since August 2024, one iron dot means 120 degrees, not 110

The core idea: five shapes, each marking a limit

The label is called sentaku hyōji, literally 'washing display'. Since December 2016 it carries no Japanese inside the symbols, so that one label works worldwide. Instead there are five base shapes, one per kind of care, in a fixed order: washing at home, bleaching, drying, ironing, and professional cleaning.

Read every symbol as a limit, not an instruction. The Consumer Affairs Agency, Shōhisha-chō, says in its leaflet that the label shows the upper limit of handling. A washtub with 40 means water up to 40 degrees; 30 is fine, 60 risks damage. Three kinds of mark sit on the shapes: numbers and dots for maximum heat, lines underneath for gentler action, and a cross for never. Friends read one together below.

Top: katei sentaku, home washing; hyōhaku, bleach; kansō, drying; airon; kurīningu, professional. Jōgen ondo, maximum temperature: numbers and dots. Tsuyosa, strength: futsū normal, yowai gentle, hijō ni yowai very gentle. Kinshi: prohibited.
JapaneseRomajiMeaning
この洗濯表示、読める?Kono sentaku hyōji, yomeru?Can you read this care label?
四十度までなら、洗濯機で大丈夫だよ。Yonjū-do made nara, sentakuki de daijōbu da yo.Up to forty degrees, the machine is fine.

Washing: the tub, its number and its lines

The washtub covers washing at home. The number inside is the maximum water temperature in degrees Celsius, from 30 to 95. No line underneath means a normal machine wash, one line a gentle one, two lines very gentle, like a delicates course. A hand in the tub means tearai (手洗い), hand washing by gently pressing or squeezing in water, up to 40 degrees, or 30 with a line; the 30-degree version arrived in 2024.

A tub with a cross means no washing at home, though a circle with W further along means a cleaning shop can still wash it. In a clothes shop, a customer asks about a jumper and the assistant answers in polite shop Japanese.

JapaneseRomajiMeaning
すみません、これは家で洗えますか。Sumimasen, kore wa ie de araemasu ka.Excuse me, can this be washed at home?
洗濯機で洗っても大丈夫ですか。Sentakuki de aratte mo daijōbu desu ka.Is it all right to put it in the washing machine?
こちらは手洗いをおすすめしております。Kochira wa tearai o osusume shite orimasu.We recommend washing this one by hand. (Staff)
こちらはご家庭では洗えない商品になります。Kochira wa go-katei de wa araenai shōhin ni narimasu.This item can't be washed at home. (Staff)
ネットに入れれば、洗濯機でも大丈夫ですよ。Netto ni irereba, sentakuki demo daijōbu desu yo.In a laundry net, the machine is fine. (Staff)

Bleaching and drying: the triangle and the square

The triangle is bleach, hyōhaku. A plain triangle allows any bleach, including chlorine. With two slanted lines inside, only oxygen bleach, which suits most coloured clothes. Crossed out, no bleach at all.

The square is drying, kansō, and it has two families. A circle inside the square means tumble drying in a machine: two dots for normal heat, one dot for low heat, a cross for never. Lines inside the square mean natural drying. A vertical line is tsuriboshi, literally 'hang-dry'; a horizontal line is hiraboshi, literally 'flat-dry'. Two lines, either way, mean dry it without spinning or wringing. A short diagonal in the top-left corner means shade, like the edge of a roof. At home, a partner gives instructions casually.

JapaneseRomajiMeaning
これ、乾燥機に入れちゃだめだよ。Kore, kansōki ni irecha dame da yo.Don't put this in the dryer.
セーターは平干しにしてね。Sētā wa hiraboshi ni shite ne.Dry the jumper flat, OK?
色物だから、酸素系の漂白剤を使って。Iromono dakara, sanso-kei no hyōhakuzai o tsukatte.It's coloured, so use oxygen bleach.
これ、乾燥機に入れても大丈夫?Kore, kansōki ni irete mo daijōbu?Is it OK to put this in the dryer?
TermReadingSymbolMeaning
塩素系漂白剤enso-kei hyōhakuzaiPlain triangleChlorine bleach, allowed only by the plain triangle
酸素系漂白剤sanso-kei hyōhakuzaiTriangle with two slanted linesOxygen bleach, safe for most colours
タンブル乾燥tanburu kansōCircle inside a squareTumble drying in a machine
つり干しtsuriboshiVertical line in a squareHang to dry
平干しhiraboshiHorizontal line in a squareDry flat
ぬれ干しnureboshiTwo lines in a squareDry without spinning or wringing
陰干しkageboshiDiagonal line in the cornerDry in the shade

Ironing and professional cleaning: the iron and the circle

The iron's dots give the maximum soleplate temperature. Since August 2024, one dot means up to 120 degrees, two 160 and three 210; earlier labels meant 110, 150 and 200, and the old one dot also meant no steam. The new standard separates the ideas: a one-dot iron with a crossed-out steam mark beneath means low heat, no steam.

The circle is professional cleaning, kurīningu. P and F are dry cleaning, P allowing a wider range of solvents than F; W is wet cleaning, a professional water wash. A line underneath means gentler handling, and a cross rules the method out. At the cleaner's counter, customer and staff use plain polite Japanese.

JapaneseRomajiMeaning
これ、クリーニングをお願いします。Kore, kurīningu o onegai shimasu.I'd like this cleaned, please.
ドライクリーニングでお願いできますか。Dorai kurīningu de onegai dekimasu ka.Could you dry-clean it?
仕上がりはいつになりますか。Shiagari wa itsu ni narimasu ka.When will it be ready?
このシミは取れますか。Kono shimi wa toremasu ka.Can this stain be removed?
こちらはウエットクリーニングもできますよ。Kochira wa uetto kurīningu mo dekimasu yo.We can wet-clean this one too. (Staff)
仕上がりは三日後になります。Shiagari wa mikka go ni narimasu.It will be ready in three days. (Staff)

Reading a whole label in order

The standard fixes the order: washing, bleaching, drying, ironing, professional cleaning, with tumble before natural drying and dry before wet cleaning. Real labels run left to right in one or two rows, in the order you handle the garment; the diagram stacks them to make room for readings. If one of the five shapes is missing, the standard treats every method of that kind as acceptable.

The diagram decodes a typical label for a fine knit: wash up to 30 degrees, gently; oxygen bleach only; no tumble dryer; hang to dry in the shade; iron on low; dry cleaning allowed. The phrase under the symbols, netto shiyō, literally 'net use', asks for a laundry net. Two flatmates are reading it together.

Read from the top. Sanjū-do made, yowaku: 30 degrees, gently. Sanso-kei nomi: oxygen bleach only. Kansōki wa tsukaenai: no dryer. Hikage de tsuriboshi: hang in shade. Teion: low iron. Dorai kurīningu ka: dry cleanable. Netto: use a net.
JapaneseRomajiMeaning
このニット、何度まで洗える?Kono nitto, nando made araeru?What temperature can this knit be washed at?
三十度までで、弱い洗い方だって。Sanjū-do made de, yowai araikata datte.It says up to thirty degrees, on a gentle wash.
陰干ししてね。日に当てると色があせるから。Kageboshi shite ne. Hi ni ateru to iro ga aseru kara.Dry it in the shade. Sunlight fades the colour.
アイロンは低温でかけてね。Airon wa teion de kakete ne.Iron it on a low setting, OK?

Beyond the basics: the words beside the symbols and the 2024 update

Makers may add short Japanese phrases beside the symbols, called fuki yōgo, 'appended terms': optional, and the part a learner can actually read. A couple check a new shirt.

JapaneseRomajiMeaning
洗濯ネット使用って書いてあるよ。Sentaku netto shiyō tte kaite aru yo.It says use a laundry net.
裏返しにして洗ったほうがいいね。Uragaeshi ni shite aratta hō ga ii ne.We'd better wash it inside out.
NoteReadingMeaning
洗濯ネット使用sentaku netto shiyōPut it in a laundry net before washing
弱く絞るyowaku shiboruSpin briefly, or press the water out in a towel
あて布使用atenuno shiyōIron over a thin pressing cloth
裏返しにして洗うuragaeshi ni shite arauWash inside out
同系色と一緒に洗うdōkeishoku to issho ni arauWash with similar colours

The August 2024 revision followed the December 2023 edition of the international standard, ISO 3758. It added two symbols, hand washing at 30 degrees and ironing at 120 degrees without steam, changed the meaning of the iron dots and the dry-cleaning letters, and adjusted some designs. Clothes labelled under the earlier rules by 19 August 2025 may still be sold as they are, so both versions will be around for years. For ironing, an older one-dot label means 110 degrees and no steam.

Beyond the basics: old labels with kanji and katakana

Before December 2016, Japan used its own system, JIS L 0217, for about fifty years, and its symbols contained words. You still meet them on older and second-hand clothes.

Machine washing was a box-shaped washing machine with the maximum temperature inside, sometimes with jaku (弱), weak, for a gentle cycle, or chūsei (中性), neutral, for a neutral detergent. Hand washing was a basin marked tearai with a katakana i. Chlorine bleach was a flask marked enso sarashi, 'chlorine bleaching'. The iron carried a kanji from kōon, chūon or teion: high, medium or low. A circle marked dorai allowed dry cleaning, with sekiyu-kei, petroleum-based, for that solvent only. A twisted cloth marked yowaku asked for gentle wringing, and a shirt with hira meant flat drying. Two friends look at a second-hand coat.

Pre-2016 symbols spelled out their meaning. Jaku: gentle cycle. Tearai: hand wash. Enso sarashi: chlorine bleach. Kō, chū, tei: high, medium, low iron. Chūsei: neutral detergent. Sekiyu-kei: petroleum solvent. Yowaku: wring gently. Hira: dry flat.
JapaneseRomajiMeaning
このタグ、手洗イって書いてあるね。Kono tagu, tearai tte kaite aru ne.This tag says hand wash.
昔の洗濯表示だね。Mukashi no sentaku hyōji da ne.That's the old type of care label.

Common mistakes with Japanese care labels

Reading 40 as the recommended temperature. The cause is treating labels as instructions, as old labels did. It is a ceiling.

Counting lines as extra strength. The cause is that more marks usually mean more, and dots do mean more heat. Lines work the other way; the agency suggests thinking of them as minus signs.

Treating a crossed washtub as dry cleaning only. The cause is the idea that no water means dry cleaning. Check the circles: W means a shop can wet clean it, P or F that it can be dry cleaned.

Using the dryer because the square means drying. The cause is missing the two families. Only a circle inside the square allows a tumble dryer; lines mean air-drying.

Using chlorine bleach on a triangle with two lines inside. The cause is reading the triangle as just 'bleach'. The lines limit it to oxygen bleach; chlorine can strip colour.

Key points

A practical way to improve

Care labels are silent, but the talk around them is not. Ask your AI Sensei in Unihongo's immersive 3D classroom to describe a label symbol by symbol in Japanese, sanjū-do made, yowaku, hikage de tsuriboshi, while you say what you will do with the garment. Then swap: you describe a label, and the Sensei plays a shop assistant who says whether the jumper can go in the machine. The mission Return Defective Headphones practises the polite return language you would need for a shirt that shrank. Afterwards, check your corrections for made, up to, and nomi, only.

  1. 1

    Choose one clear goal

    Focus each session on a situation or skill you can actually use.

  2. 2

    Practice actively

    Say complete answers aloud instead of only reading or recognizing Japanese.

  3. 3

    Review and repeat

    Keep useful corrections and revisit the same skill until it feels natural.

FAQ

Frequently asked questions

What do the dots on a Japanese iron symbol mean?

The dots set the highest temperature for the base of the iron. Since the August 2024 revision of JIS L 0001, one dot means up to 120 degrees, two dots 160 and three dots 210; earlier labels meant 110, 150 and 200. A one-dot iron with a crossed-out steam mark underneath, new in 2024, means low heat without steam.

What does the line under the washtub symbol mean?

A line under a symbol means a gentler treatment than the same symbol without one, and two lines mean very gentle. Under the washtub, one line calls for a gentle machine wash and two lines a very gentle one, such as a delicates course. The number inside is still the maximum water temperature.

Can I wash hand-wash clothes in a washing machine?

The hand symbol means gentle washing by hand in water up to 40 degrees, or 30 when a line is added. The Consumer Affairs Agency advises checking your machine's manual or the maker's website to see whether its hand-wash course suits garments with this symbol. If it does not, use a basin.

When did Japan change its laundry symbols?

Japan replaced its own symbols, which contained kanji and katakana, with the international style on 1 December 2016, under JIS L 0001. The standard was revised on 20 August 2024 to match the 2023 edition of ISO 3758, adding two symbols and changing the iron temperatures, with a one-year transition.

What does W in a circle mean on a care label?

A circle stands for professional cleaning, and W inside it means wet cleaning: a water wash done by a cleaning shop with special techniques. Next to a crossed-out washtub, it means you cannot wash the item at home but a cleaner can still wash it in water. P and F in a circle are dry cleaning.

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