What Diatex does

Diatex Co., Ltd. (ダイヤテックス株式会社), founded in November 1962 and headquartered in Tokyo, is a Japanese specialty materials manufacturer that operates as a wholly-owned subsidiary of Mitsubishi Chemical Corporation within the Mitsubishi Chemical Group. The company runs a vertically integrated production chain starting from synthetic resin raw materials, extruding its own flat yarn (Pyolan™ Flat Yarn in polyethylene, polypropylene, and PET at 100–12,000 dtex), weaving it into cloth (Pyolan™ Cloth up to 4,000mm width), applying lamination coatings (Pyolan™ Lami Cloth, 15–100µm thickness), and converting finished materials into branded end products. Its product portfolio spans adhesive tapes under the Pyolan™ brand for painting/construction masking, agriculture, and stage/event use; agricultural materials including Fuafua™, Tellace™, Skycloth™, Shine Barrier™, and Hidamari™ lines for greenhouse and field applications; industrial materials such as non-slip sheets and self-standing bags; and specialty SRP (Self Reinforced Plastics) products under the KaRVO™ brand, including knee guards.

The company sells across multiple go-to-market channels: a direct e-commerce storefront (ec.diatex.co.jp), the Monotaro B2B marketplace, and partner retailers and distributors — all within Japan, with no global footprint claim. Pricing is unit- and case-based (e.g., ¥1,078 per single 50mm×25m roll; ¥14,850 per 30-roll case), with free shipping above ¥3,600. Customer segments are horizontally diversified across construction/painting contractors, agriculture, industrial/logistics, stage/event/broadcast, and retail consumers, served by a 251–500 employee organization with primary manufacturing at the Kurobe Factory in Toyama Prefecture and an Osaka sales office. Leadership consists of President and CEO 関 宏規 (Seki Hiroki), with formal executive appointment/resignation announcements issued in January and April 2026. Recent strategic activity includes a 2024 biomass-plastic renewal of Pyolan Tape (first reformulation in 40 years), 2025 product launches for anti-vegetation sheet tape (BS-40-GR) and digital-green chroma key tape, and active participation in trade shows including Inter BEE, DIYSHOW, regional broadcast equipment exhibitions, and Construction Technology Exhibition 2025 Kanto. Diatex holds Biomass Mark certification (No. 210076), Green Purchase Law compliance, and ISO certifications, but discloses no revenue, funding events, or AI/ML capabilities.

Name

Diatex

Legal name

ダイヤテックス株式会社

Website

https://diatex.co.jp

Company type

Private

Founded year

1962

Operating status

Operating

Headcount range

251–500 employees

Short description

Diatex is a Tokyo-based, Mitsubishi Chemical–owned specialty materials manufacturer producing flat yarn-based adhesive tapes, agricultural films, industrial materials, and SRP products for Japanese construction, agriculture, industrial, and stage/event customers.

Ownership category

akta.pro rank

Product category

Industrial Tapes and Specialty Materials

NAICS

Artificial and Synthetic Fibers and Filaments Manufacturing (32522), Plastics Packaging Materials and Unlaminated Film and Sheet Manufacturing (32611), Plastics and Rubber Products Manufacturing (326)

SIC

Unsupported Plastics Film & Sheet (3081), Textile Mill Products (2200)

akta.pro primary industry

Packaging & Wrapping Technical Textiles (FIBCs/Big Bags/Industrial Sacks/Strapping Substrates) (IMAOADAN)

akta.pro secondary industry

Packaging Film Extrusion (Flexible Packaging Films) (IMANACAA)

Keywords

• Adhesive tape manufacturing
• Agricultural materials
• Industrial materials
• Synthetic flat yarn
• Self-reinforced plastics

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Personnel, Marketing or Sales, Operations

Revenue model

1. Adhesive Tape Sales: Diatex manufactures and sells adhesive tapes under the Pyolan™ brand, including painting/construction masking tapes (Y-09-GR/CL), agricultural repair tapes (NEW Hosyu King), and specialty tapes for stage/events/chromakey applications. Products are sold individually, in packs, and in bulk case quantities through the online shop and distributors.
2. Agricultural Materials: Sale of agricultural films, shading nets, heat-retaining sheets, greenhouse covering materials, and agricultural tapes. Products include Fuafua™ series (white reflective nets), Skycross™ series, Tellace™ series, Shine Barrier™ UV sheets, and Hosyu King repair tape.
3. Industrial Materials: Flat yarn-based products for logistics, civil engineering, construction, and horticulture sectors, including Pyolan™ non-slip sheets and self-standing universal bags.
4. SRP (KaRVO™) Products: Lightweight impact-resistant SRP materials and products such as KaRVO™ knee guards. These polypropylene-based self-reinforced plastics are recyclable and used in applications requiring durability and light weight.
5. Raw Materials (Flat Yarn, Cloth, Laminated Products): Diatex supplies flat yarn, woven cloth, and laminated fabric materials to other manufacturers and processors as intermediate materials for various applications including artificial turf base fabric, civil engineering, packaging, and agricultural products.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Diatex manufactures and sells adhesive tapes (notably the Pyolan™ polyethylene-cloth masking tape line for construction/painting and stage/event use), agricultural materials (shade nets, heat-retaining sheets, greenhouse covering films, repair tapes), industrial materials (flat-yarn non-slip sheets, self-standing bags), and specialty SRP composite materials under the KaRVO™ brand. The company operates a vertically integrated production chain starting from synthetic resin raw materials, producing its own flat yarn, woven cloth, and laminated fabric as intermediate inputs.

Product overview

Diarex is a comprehensive manufacturer that produces synthetic resin-based flat yarn from raw materials and develops, manufactures, and sells various functional products including adhesive tapes, agricultural materials, industrial materials, and sheets. The company operates a vertical integration model starting from synthetic resin raw materials, producing flat yarn (パイオラン™フラットヤーン), woven cloth (パイオラン™クロス), and laminated products (パイオラン™ラミクロス) as core materials. These materials feed into distinct product lines: adhesive tapes for construction masking, agriculture, and stage/events; agricultural materials including shade cloths (ふあふあ™シリーズ), thermal insulation (スカイクロス™, ひだまり™), and greenhouse coverings (テルエース™); industrial materials including non-slip sheets and self-standing bags; and specialty SRP (Self Reinforced Plastics) products under the KaRVO™ brand. The company also maintains an e-commerce channel for direct sales.

Differentiator

Problem solved

Functional benefit

Brands

• パイオラン™ (Pyolan™): Main brand for adhesive tapes including Pyolan Tape, used for painting/construction masking applications
• KaRVO™
• ふあふあ™ (Fuafua™)
• テルエース™ (Tellace™)
• スカイクロス™ (Skycloth™)
• ひだまり™ (Hidamari™)
• シャインバリア™ (Shine Barrier™)
• ふあふあホワイトプラス™
• パイオラン™クロス (Pyolan™ Cloth)
• パイオラン™ラミクロス (Pyolan™ Lami-Cloth)
• パイオラン™フラットヤーン (Pyolan™ Flat Yarn)

Products and services

• Pyolan™ Flat Yarn (パイオラン™フラットヤーン) Self-manufactured synthetic flat yarn used as raw material for downstream Pyolan™ products. Made from polyethylene, polypropylene, or PET, with options for color variations and weather resistance via additives. Sold to other manufacturers and processors as intermediate material.
• Pyolan™ Cloth (パイオラン™クロス) Woven fabric produced from self-manufactured flat yarn. Available in plain weave, twill weave, and hollow bag weave patterns, plus special US cloth with suppressed thread slippage. Maximum production width 4,000mm.
• Pyolan™ Lami-Cloth (パイオラン™ラミクロス) Laminated fabric produced by applying lamination coating to Pyolan™ cloth. Provides water resistance, fray prevention, and bonding with materials like craft paper or aluminum vapor-deposited film. Corona treatment available for improved ink adhesion.
• Pyolan™ Tape Y-09-GR/CL (Painting/Construction Masking Tape) Polyethylene cloth masking tape for painting and construction surface protection. Pioneer product in its category with balanced tensile strength, hand-tearability, adhesion, and residue-free re-peelability. Biomass Mark certified. Available in 50mm, 75mm, 100mm, and 200mm widths; custom widths from 10mm–1000mm available on order.
• KaRVO™ SRP Material (Self Reinforced Plastics) Lightweight, impact-resistant polypropylene-based composite material (Self Reinforced Plastics). The matrix and reinforcement are made from the same material, providing excellent recyclability. Sold as a specialty material to downstream manufacturers and processors.
• KaRVO™ Knee Guards (KaRVO™ ひざガード) Knee guard product made from KaRVO™ SRP (Self Reinforced Plastics) material. Lightweight with excellent impact resistance and crack resistance for construction and industrial use.
• Fuafua™ Series Shade Cloth (ふあふあ™シリーズ) Shade cloth series for agricultural use. Provides light shielding and heat blocking for greenhouse and field applications using US cloth material.
• Fuafua White Plus™ (ふあふあホワイトプラス™) White reflective shade cloth with approximately 50-60% light blocking rate for greenhouse cooling and heat shielding applications.
• Skycross™ Series (スカイクロス™シリーズ) Heat-retaining material series for greenhouse applications. Bag-woven cloth structure provides thermal insulation for agricultural use.
• Hidamari™ (ひだまり™) Thermal insulation material for greenhouse use, providing warmth retention for agricultural applications.
• Tellace™ Series (テルエース™シリーズ) Greenhouse covering material series available in multiple variants including BK-W, BK-AL (interior), and Crystal, White, BK&WH (exterior) options for UV and weather resistance.
• Shine Barrier™ (シャインバリア™) Silver UV sheet with high weather resistance for outdoor long-term use. Available in two specifications (#3000 and #4000) for warehouse, carport coverings, and agricultural film covers.
• NEW Hosyu King™ Agricultural Film Repair Tape (NEW補修王™) Hand-tearable agricultural film repair tape with strong adhesion to agricultural and multi-films. Flexible base material fits film surfaces. Used for repairing film ducts and fertilizer bags.
• Agricultural Double-Sided Tape K-13-DCL (農業用両面テープ K-13-DCL) Double-sided adhesive tape for joining agricultural films lengthwise. Strong adhesion to vinyl, polyethylene, and various agricultural films.
• Forage Wrap Film Repair Tape MD-20-B,W (牧草用ラップフィルム MD-20-B,W) Repair tape for forage wrap film with strong adhesion to grass wrap film. Weather-resistant specification with good hand-tearability.
• Pyolan™ Non-Slip Sheet (パイオラン™ノンスリップシート) Non-slip sheet using flat yarn. Applicable for logistics, civil engineering, construction, and gardening fields.
• Self-Standing Universal Bag (自立式万能袋) Self-standing universal bag using flat yarn. Used as bag material in logistics, civil engineering, and construction applications.
• Chroma Key Tape CH-06-DG (クロマキーテープ CH-06-DG) Green-colored tape for chroma key (blue/green screen) applications in video production and broadcasting. Available in 25mm and 50mm widths.
• Matte Tape for Stage/Events MT-08 (つや消しテープ 影武者 MT-08) Matte-finish tape for stage, events, and video production. Available in white and black colors for inconspicuous masking applications.
• Temporary Code Fixing Tape CK-06 (仮設コード固定用テープ CK-06) Temporary code/cable fixing tape for stage and event setups. Available in black, white, and digital green colors.
• Non-Slip Tape NS-10 (ノンスリップテープ NS-10) Non-slip tape for preventing slips and falls. White colored for visibility.
• Warning Tape TT-06-YB (標示テープ トラ柄 TT-06-YB) Stripe-patterned warning/caution tape for safety marking and hazard indication.
• Typhoon Disaster Prevention Tape (台風防災テープ) Typhoon disaster prevention tape for securing windows and protecting against storm damage.
• Pyolan™ Tape BS-40-GR Anti-Vegetation Sheet Tape (パイオラン™テープ 防草シート用テープ BS-40-GR) Pyolan™ tape variant for fixing/securing anti-vegetation sheets (weed control sheets) in outdoor and agricultural settings. Released July 2025.

Quantifiable outcome

• Products certified as Biomass Mark (No. 210076) and compliant with Green Purchase Law

Named customers1 record

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Nitto Denko: Japan-based global specialty manufacturer of adhesive tapes, films, and performance materials, with extensive industrial tape, masking, and agricultural/industrial film product lines directly comparable to Diatex's Pyolan™ and Tellace™ offerings.
• Intertape Polymer Group: North American manufacturer of paper and film-based pressure-sensitive tapes, strapping, and protective packaging — overlapping with Diatex's cloth-backed tape and industrial packaging woven bag offerings.
• Scapa Group: UK-based manufacturer of specialty adhesive tapes and films for industrial, medical, and consumer applications — directly comparable in technical/specialty industrial tapes and laminated cloth substrates.
• Achilles Corporation: Japanese manufacturer of industrial films, sheets, and synthetic leather serving construction, agriculture, and industrial packaging — overlapping with Diatex's agricultural films, packaging substrates, and industrial sheet offerings.
• LINTEC Corporation: Japanese manufacturer of adhesive products, specialty papers, and films serving industrial, construction, and labeling end markets — overlapping directly with Diatex's industrial materials and adhesive tape segments.
• tesa SE: German specialty tape manufacturer owned by Beiersdorf, producing industrial, masking, and packaging adhesive tapes as well as functional coating solutions — a pure-play tape peer comparable in product type, customer base, and technology approach.

Broad incumbents

• Amcor: Global packaging and specialty film conglomerate (now combined with Berry Global) producing flexible films, laminates, and industrial packaging materials — overlaps with Diatex's industrial packaging bag, laminated cloth, and protective film portfolio at a much larger scale.
• 3M: Global diversified industrial and consumer products conglomerate with a major specialty tapes and adhesives division serving construction, automotive, and industrial customers — a much larger incumbent that competes broadly with Diatex's masking tape and industrial material portfolio.
• Kuraray: Japanese specialty chemicals and fiber manufacturer producing EVAL, PVA, and synthetic fibers used in industrial and packaging applications — relevant comparability through shared fiber/film extrusion and industrial materials end markets.
• Toray Industries: Japanese diversified manufacturer of synthetic fibers, technical textiles, films, and resin intermediates — comparable to Diatex at the upstream flat-yarn and woven-cloth substrate level, though at much greater scale and breadth.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/pyolantape_dtx
• YouTubeyoutube.com/channel/UCR93a_DVsiBnEZzH5VKEPYA

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Diatex