Glass laboratory beaker with red dye swirling in water

Representative photo. Your order is made to your specification by a verified seller. Photo: “Reação química” by Karl Az, CC BY 4.0.

Apparel and textiles · Textile testing and colour lab

Lab dip consumables supplier in Bangladesh

Send us your methods and monthly test count. As a lab dip consumables supplier in Bangladesh, Roptan sources adjacent fabrics, reference detergents, rubbing cloth and perspiration reagents to the named standard, checks batch and date, and delivers to your lab.

Verified sellers
Checked before it ships
Delivered by Roptan

Prefer to deal with suppliers yourself? Post it on the requirement board

Buying lab dip consumables in Bangladesh

Lab dip consumables are the standard materials that fastness tests use up: adjacent fabrics that pick up staining, reference detergents and bleach components, rubbing cloth and perspiration reagents. The method or the buyer decides which of each. Garments made up 80.62 percent of Bangladesh's exports in FY2025-26 (BGMEA), and the 342 dyeing, printing and finishing facilities counted by USDA from BTMA data are among the buyers.

These are repeat purchases that age once opened, so the risks are the wrong detergent type, a fabric without its batch certificate and stock that expires on the shelf. A lab dip consumables supplier in Bangladesh should catch all three. Roptan sources from verified sellers, checks type, batch and date, and delivers on the plan you set. You deal with Roptan only.

Kinds of lab dip consumables

Multifibre adjacent fabric

A narrow woven strip of six fibres sewn to the specimen, so one test grades staining on all six. The common DW type carries acetate, cotton, nylon, polyester, acrylic and wool; other versions bring in regenerated cellulose, and one adds silk too.

Single-fibre adjacent fabrics

Undyed cloth of one fibre, such as cotton, viscose, polyamide, polyester, acrylic or wool. Choose them when a method or buyer names one fibre rather than a strip.

Reference detergents

ECE and IEC types, each with and without phosphate, plus perborate, percarbonate and TAED bleach components. One maker's IEC types contain optical brightener and serve ISO 6330 domestic washing procedures; its brightener-free ECE phosphate type serves the ISO 105 C series. Choose the type the method names.

Rubbing cloth

Cotton cloth specified by ISO 105-F09 for rubbing tests, and AATCC crocking cloth sold in 50 mm squares. Choose the cloth of the method you report.

Perspiration reagents

L-histidine monohydrochloride, sodium chloride and a phosphate salt for synthetic perspiration. Buy quantities you will use up, since the solution is usually made up fresh for each test.

How to brief a lab dip consumables supplier in Bangladesh

Method and edition: ISO 105-C06:2010 and ISO 105-C08:2010 are current; the 1994 and 2001 editions are withdrawn, so detergent bought for an old method may be the wrong one.
Detergent family: ECE or IEC, phosphate or non-phosphate, and any bleach component the method adds, such as perborate or TAED.
Multifibre type: DW, or a version with regenerated cellulose for lyocell, modal and viscose blends, or one with silk, as the buyer's manual names it.
Pack size: Rolls of 10 or 50 metres or cut strips for fabric, and smaller detergent packs, so less stock is open in the lab at once.
Monthly use: Tests a month for each method, so every pack is used within its typical life after opening.

Standards that name the consumables

ISO 105-F10: Specification for multifibre adjacent fabric, current after review in 2025, with Amendment 1:2009. Its fabrics have standardised staining properties, checked by the method in its Annex A.
ISO 105-F02 and ISO 105-F09: F02 covers undyed cotton and viscose adjacent fabrics; F09 specifies the cotton rubbing cloth for rubbing tests and is current after review in 2025.
ISO 105-C06:2010 and C08:2010: C06 uses a reference detergent; C08 a non-phosphate one with a low-temperature bleach activator. Both are current after review in 2026.
ISO 105-E04:2013 and AATCC TM15: The perspiration methods. E04 usually runs alkaline and acid solutions; TM15 now tests acid perspiration only.

What moves the price of lab dip consumables

Type: multifibre strip or single-fibre cloth, ECE or IEC detergent.
Pack: rolls, cut strips or small tubs; one maker notes that five 10 m rolls cost no more than one 50 m roll.
Paperwork: a batch certificate of conformity and an authentication thread in the fabric.
Usage: stock that expires before it is used has to be bought again.
Maker: standard materials from different makers and origins.

Lead times and delivery

Dhaka sellers list multifibre and crocking cloth, so common types can move quickly. A detergent type, a fibre version or a pack size that must be imported takes longer. Roptan confirms dates and the smallest pack in the quote; for steady use, ask for a monthly plan so the next delivery is booked before stock runs low.

Roptan delivers to labs anywhere in Bangladesh, from Gazipur and Narayanganj to Ashulia and Chattogram, with packs sealed in their original packaging, each batch's certificate of conformity and a VAT invoice (Mushak 6.3). One maker advises storing them cool, dry and away from strong light, since sunlight can yellow fabrics, and labelling each pack with the date it is first used.

What we check for this order

Type and editionWe check that detergent type, multifibre type and rubbing cloth match the method and edition your buyer names.
Batch certificateWe match each batch number to its certificate of conformity and check the authentication thread where the fabric carries one.
Sealed and in dateWe check that packs arrive sealed and in date, with enough life left for your monthly use.
Detergents kept apartWe check ECE and IEC detergents arrive in separate sealed packs: one maker warns that a shared scoop or lid can carry optical brightener into ECE powder.

Questions buyers ask

Can we use an ordinary washing powder instead of reference detergent?

No. ISO notes that the ISO 105-C06 methods do not reflect the effect of optical brighteners in commercial washing products, so the test must use the reference detergent the method names. Nor do the reference types swap: one maker's IEC detergents contain optical brightener, and its ECE phosphate type, free of brightener, is the one made for the ISO 105 C series.

How long do test consumables keep?

One maker of standard materials sets no fixed shelf life. By its guidance, unopened detergents last years and typically 12 to 18 months once opened and resealed, sealed adjacent fabrics keep for years, and TAED should be used within 12 months of opening.

What does a perspiration test need?

A freshly made solution of L-histidine monohydrochloride, sodium chloride and a phosphate salt, usually set to pH 8.0 for alkaline and pH 5.5 for acid, with the specimen held under load in an oven at about 37 °C for about 4 hours. ISO 105-E04 is the ISO method.

Do we need distilled water for wet tests?

Where the method names it, yes. AATCC TM107 uses distilled or deionised water because tap water varies in composition, and one instrument maker's guide uses distilled water for the wet rubbing cloth. Plan a steady source of distilled or deionised water alongside the other consumables.

How soon will I hear back about textile testing and colour lab?

Within 48 hours of a complete requirement, with a price and a delivery date. A requirement is complete when it has the quantity, where it is needed and by when.

Who do I deal with?

With Roptan, when Roptan manages the order: we buy from the verified seller and deliver to you. With the supplier directly, when you post on the requirement board and choose a quote yourself.