Composite amber threads

Amber has rich history and mythology, which dates back to ancient Egypt. More popular in fashion it became later.
Nowadays amber has become quite popular element in decoration.
Amber has high value because of its unique color, transparency and unique healing and regenerative properties. It has huge potential in fields of science.
Our product Ambelika ® composite amber threads are made from Baltic gold – Baltic amber (Succinitte), which is well known worldwide and has unique wide range biologic properties.
When amber is processed, its biological properties are preserved. Micronized amber – amber powder has larger surface area, which means – higher activity (in comparison with non-micronized amber). These characteristics are taken into account when composite threads are manufactured in order to improve biological and physico-mechanical properties of composite amber threads. The product is patent protected:
LV Patent 14132 12.02.2010; LV Patents 14446 29.07.2011; WIPO ST 10/C PL399430 29.07.2011; and WIPO PCT 2370 29.07.2011.

Why does Ambelika ® composite amber threads are the best and why do you need them?
- a unique product that has no analog in the world;
- contains natural energy enhancers;
- has a regenerative effect on skin cells;
- threads have smooth and soft surface;
- has natural color and transparency of amber;
- UV radiation blockage;
- preserves the natural heat of human body;
- high water absorption;
- does not fade, keeps original color;
- does not cause skin irritation or skin reaction.

Raw material – natural amber, obtained in the Baltic Sea region. It has formed within 50 million years of fossilization from resin of pine trees. JLU Technologies has developed a technology to produce composite amber threads. It contains amber preparation – grinding up to nano-structured powder. Final particles are round with smooth shape.
Thanks to amber-shaped particles, we are able to produce amber composite threads, preserving original biological properties of Baltic amber. Particles are evenly distributed in polymer matrix which is the basis of threads.

Technical parameters:
Tensile strength 32 МPа
Elongation 60 %
Moisture absorption, 24h incubation 8,8%
Bending strength 75,8 MPа
Abrasion resistance more than 100000 cycles


Download order form for threads

Download order form for shawl


Composite amber threads are organic high molecular compounds, composed of repetitive linear polymer structural units of polyamide with integrated microparticles of amber.
Decomposition products of the composite amber thread are not toxic and are found in nature everywhere.
Composite amber threads are fully decomposed if affected by microrganisms under aerobic or unaerobic conditions in carbonic dioxide, methane, water, biomass and non-organic compounds (down to low molecular compounds), does not have a negative affect on nature or humans. Self-decomposition completes within 6 to 36 weeks.
Certificate Oeko-Tex® Standard 100 AITEX Nr. 2913LK0012 23.09.2013. Composite Amber fibers in raw. Composite amber fibers blends with cotton, linen, wool and silk in raw.
Certificate LVS EN ISO 9001:2009 Nr. LVRIG89513A 2013.g. October 14. Scientic Research and Development of Environment-Friendly Materials and Biotextile Materials.

JLU technologies 13lk0012-big 

 JLU technologies 13lk0012-big2 JLU technologies 13lk0012-big

 Test results were obtained based on:

- Asociacion de investigacion de la industria textil (AITEX) Independent research laboratory; Address: Plaza Emilio Sala 1,03801 Alcoy (Alikante) Spain;

- Manufacturing Solution Center, Independent research laboratory, Conover, United States of America;

- Ltd "Latvijas sertifikācijas centrs".

Test results and methods




Textile materials from PA fibers

Textile materials from amber fibers

8,5 %

8,8 %

GOST 3816-81 3

GOST 3816-81 3


Test results and methods

* Rating


Fastness to dry friction

- coloring white fabric;


 5 scores

LVS EN ISO 105-X12:2002

Fastness in wet friction

- coloring white fabric;


5 scores

LVS EN ISO 105-X12:2002

Durability of paint to dry cleaning

- Discoloration of fabric;


4-5 scores

LVS EN ISO 105-D01:2010

Colour fastness against perspiration

- Acid solution

- fabric discoloration;

- coloring white fabric;

- Alkaline solution

discoloration of fabric;

- coloring white fabric;



4-5 scores

5 scores


4-5 scores

5 scores

LVS EN ISO 105-E04:2013

Fastness to washing

discoloration of fabric;

- coloring white fabric;


5 scores

5 scores

LVS EN ISO 105-C06:2010

(aqua +600C, progr.C1S)

Fastness to washing

discoloration of fabric;

- coloring white fabric;


5 scores

5 scores

LVS EN ISO 105-C06:2010

(aqua +400C, progr.A1S)


*Color change

(scale from 1 to 5; 1 - much color change; 5 - no color change)



Properties of material made from composite amber fibers and its blends


Test Method


Composite Amber Fibers

Composite Amber Fibers/Cotton

Composite Amber Fibers/Wool


Abrasion Resistance

Rubs - Mass Loss, %

(Mass of Weight 9 kPa)


ISO 12947-3:1998

25 000 - 0,00

50 000 - 0,00

75 000 - 1,30

100 000 - 4,35

25 000 - 2,72

50 000 - 3,89

75 000 - 7,78

100 000 - 7,78

25 000 - 6,70

50 000 - 13,70

75 000 - 16,62

100 000 - 17,49

5 000 - 5,09

7 500 - 8,40

10 000 - 9,14

15 000 - 12,72

25 000 - 21,12

Pilling resistance

(scale from 1 to 5; 1 - poor resistance; 5 - excellent resistance)

ASTM D4970-07





Breaking Force, N

ASTM D5034-09





Breaking Extension, %

ASTM D5034-09





pH of the Water-Extract

ATCC 81-2006





Flammability, class

16 CFR 1610/ASTM D 1230-10





Air permeability, cfm

BS 5636





Rate of water Absorbency, s

Before Laundering/ After 1 Laundering

(NA - did not absorb after 1 minute)






Weather resistance (UV, moisture)

Breaking Force :

Unexposed state/Exposed 12 h, N

Shade Change

(scale from 1 to 5; 1 - much color change; 5 - no color change)

AATCC 186-2009


















Composite amber fibers

JLU Technologies Ltd.” has developed a technology to produce new type of textile fibers - composite amber fibers. Raw material, which was used to create these fibers, is natural Baltic amber, succinite, is obtained in the Baltic Sea region. It has formed within 50 million years of fossilization from resin of pine trees.

Amber is subjected to a specially developed process that includes multi-stage purification from impurities; initial milling and separation to fractions, depending on the particle size; micronization in water media to the nanoparticle size. This processing of amber allows obtaining micro and nanoparticles of amber with round shape and smooth surface. Composite amber fibers are produced from amber powder and polyamide by double extrusion process. Due to the round shape of particles amber biological properties is remaining and fibers do not broken in production process. As a result composite amber fibers are obtained in which amber particles are evenly dispersed in polyamide matrix.


Fabric from composite amber fibers has such properties as:

- elasticity

- softness

- comfort

- good color fastness

- weather resistance

Possible Applications

- Apparel

- Underwear

- Baby apparel

- Socks and hosiery

- Home Textile


Composite amber as well as fabric made of them can be dyed with acidic dyes or subjected to other finishing and treatment (eg. antibacterial treatment).

Fabric from composite amber fibers and its blends

Composite amber fibers can be used in a pure form or in blends with other kinds of fibers, for example, cotton, wool, linen or silk, etc.

1. Textile material made from pure composite amber fibers has natural color and gloss, soft and smooth surface, pilling resistance.

2. Fabric made from composite amber fibers and cotton blend, compared with pure cotton has more smooth surface, higher durability and elasticity. Especially suitable for woman and man underwear, baby apparel, bed linen.

3. Fabric made from composite amber fibers and wool (cashmere) blend is characterized by softness, gloss, good drapeability and excellent appearance. This material is more resistance against pilling, than pure wool material. Ideal for knitted apparel (scarves, sweaters).


 Amber Buttons


Last modified on Среда, 17 февраля 2021 13:46

JLU Technologies Ltd

Registration Nr. 40103190287
Ilukstes str. 107/1-16, Riga, LV-1082, Latvia
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  • Phone: +371 29436384;
    Fax: + 371 67089631
  • e-mail: jlutechno@inbox.lv
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