Papers & Publications

Archival Works

First page of Dr. Lin's paper for Maison de Navarre
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Title
Emulsions
Published In
Chemistry and Manufacture of Cosmetics (de Navarre, ed.)
Author
T. Joseph Lin, Ph.D.
Affiliation
Max Factor & Co., Hollywood, CA
Pages
40 scanned pages
Significance
Dr. Lin's first published technical paper

Written for
Maison G. de Navarre

Maison G. de Navarre was the founder of the Society of Cosmetic Chemists (SCC) in 1945 and the author of the definitive reference work in the field — The Chemistry and Manufacture of Cosmetics. Being invited to contribute a chapter to this landmark text was among the highest honors a cosmetic chemist could receive.

This paper represents Dr. Lin's first published technical work — a comprehensive chapter on emulsions contributed to de Navarre's authoritative multi-volume reference series. Writing for de Navarre at this stage of his career was a mark of exceptional scientific standing and a formative moment that would shape the trajectory of his research for decades to come.

The paper covers the fundamental science of emulsions — their composition, stability, and the role of surfactants — establishing the theoretical foundation upon which Dr. Lin would later build his landmark work on Low Energy Emulsification.

A Note on This Copy

Dr. Lin's personal copy of this book — one of his most prized possessions — was among the irreplaceable items lost when his home burned. His son photographed every page of this copy approximately six months before the fire, not knowing how precious those photographs would become. He later tracked down a surviving copy of the book in France and had it reproduced as a gift to his father. The scanned pages you see here are from those photographs — the only surviving record of that lost copy, and a testament to the lengths a family will go to preserve a legacy.

Browse the Manuscript

Click any page to open the full-screen reader.

Dissertation cover
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Title
Gas Bubble Entrainment by Plunging Laminar Liquid Jets
Author
Tong Joe Lin
Degree
Doctor of Philosophy, Chemical Engineering
Institution
Wayne State University, Detroit, Michigan
Year
1963
Adviser
Prof. H. G. Donnelly (approved 8/23/63)
Dedication
Dedicated to My Parents

Wayne State University,
1963

Born in Pingtong, Taiwan in 1932, Tong Joe Lin earned his B.S. at UC Berkeley (1957), his M.S. at the University of Washington (1959), and his Ph.D. at Wayne State University (1963) — all in Chemical Engineering.

His doctoral research investigated the entrainment of gas bubbles when a free jet of liquid plunges into a quiescent surface of the same liquid. Using twelve Newtonian liquids across a wide range of viscosities, densities, and surface tensions, he conducted high-speed photographic experiments to characterize how jet velocity, jet diameter, and liquid surface tension each govern bubble size and frequency.

The research demonstrated that turbulent and laminar jets entrain gas by fundamentally different mechanisms — a finding with lasting relevance to mixing, aeration, and fluid dynamics. The dissertation was approved on August 23, 1963 and signed by five faculty members.

Acknowledgment

"Finally he wishes to acknowledge with deep appreciation the patience and understanding of his wife Mei Wan who assisted in the measurements of bubbles and the preparation of this manuscript."

03 — Conference Presentation

IPCE 2018
Less Is More

One of Dr. Lin's last public presentations on Low Energy Emulsification, delivered at the International Personal Care Conference in 2018.

In this 24-slide presentation, Dr. Lin frames LEE within the urgent context of global warming and creative conservation, introducing his signature “< = >” symbol — shorthand for the Less Is More principle. Drawing on Confucius and Lao-tse, he argues that finding the Z-Point (the optimal output achieved with minimum input) is the key to both better products and a more sustainable industry.

Two real-world case studies anchor the talk: a shear-sensitive emulsion scale-up problem he solved at Max Factor, and a 2,000-gallon sunscreen stability failure he diagnosed as a consultant using Phase Inversion Temperature (PIT) theory. Both demonstrate that Process Variables — not just formulation — are the key to quality.

More energy = better product — NOT TRUE.

Myth #1, busted

More surfactant = better stability — NOT TRUE.

Myth #2, busted

少即得、多即惑 — Less is a gain, more is confusion.

Lao-tse, cited by Dr. Lin

IPCE 2018 title slide
Open Presentation

Publication Details

Title
The Value & Perceived Value of Cosmetics
Original
Written in Chinese, translated to English
Published in
Cosmetics & Toiletries China (C&T China)
Column
International Perspective
Author
T. Joseph Lin, Ph.D.
Address
628 Enchanted Way, Pacific Palisades, CA

Dr. Lin's Value Formula

V = kf + x

V — Perceived value

f — Actual functional performance

k — Advertising amplification factor

x — Brand / image factor

The Value & Perceived Value
of Cosmetics

A column written in Chinese for Cosmetics & Toiletries China, later translated to English — one of Dr. Lin's reflections on the industry he shaped over six decades.

I have three children, all sons, and four grandchildren — no granddaughters. My Chinese friends say I am "very lucky," but my American friends say, "Unfortunately you have no granddaughter." At our annual Christmas family reunion, we buy gifts for the grandchildren. When they were small, simple gifts — cute clothes, toys — made them very happy. Now it is not so easy, because they have grown up and have their own views on clothes and toys. We must consult with their parents to choose the right gift. As they have grown, their sense of the value of things has also changed.

Cosmetics "worth" is very important because as the types of cosmetics multiply and competition intensifies, consumers have many choices. In the U.S., a bottle of face cream may sell for $10, $50, or even $100. To understand why a consumer buys a particular brand, we must consider "perceived value." Because she has not yet used the product, she cannot know its effect or quality — she can only judge by worth. If the perceived value exceeds the price, she will consider buying. Cosmetics companies understand this well, and invest heavily in packaging and advertising to increase a product's perceived worth.

A Formula for Worth

Although perceived value may be affected by many factors, two are primary: first, functional factors — the product's effect, quality, and safety; second, factors beyond function — brand image, company reputation, and cultural cachet. If we use V for value, F for the first factor, and x for the second, we can write: V = F + x. Since the consumer has not yet used the product, F represents a subjective impression. Using f for actual post-use performance and k as an advertising scale factor, the formula becomes: V = kf + x.

If k = 1, the consumer's pre-use impression matches actual performance. If k > 1, advertising has made the product seem more effective than it is. Experienced manufacturers know the risk of exaggerating k too far — if the gap between promise and reality is too wide, consumers are disappointed and do not return.

Image, Fashion, and the X Factor

In the early 20th century, many leading cosmetics companies built their value on the x factor — high-end image, fashion, and luxury. Christian Dior and Coco Chanel were famous fashion designers first; their perfumes succeeded not on functional claims but on the power of an upscale image. I worked in Hollywood in the 1960s, where Mr. Max Factor — makeup stylist to the movie stars — used the image of Hollywood to build one of the world's great color cosmetics brands.

The Shift Toward Function

By the late 1960s, American consumers began questioning the safety of cosmetic ingredients, and the consumer movement grew through the 1970s. When I started my consultancy in California in 1974, I observed small companies succeeding by selling cosmetics with all-natural ingredients — emphasizing gentleness and safety over image. Large companies followed in the 1980s with herbal extracts and natural raw materials. After 2000, the organic food movement brought organic cosmetics into the mainstream.

This shift — from image-driven x-value to function-driven f-value — does not mean x is unimportant. But its content has evolved. Today, cosmetics companies also emphasize their contribution to the environment and social causes: breast cancer research, sustainability, and community investment. The x factor has become less about luxury and more about shared values.

References

(1) T. J. Lin, C&T China, p.6, No.3, 2005

(2) T. J. Lin, C&T China, p.6, No.3, 2007

(3) T. J. Lin, C&T China, p.6, No.2, 2008

(4) www.elcompanies.com