Dual sided Shampoo/Conditioner bottle

in Product Design held by Kaelen
Contest Ended, Winner(s) have been selected.
We are a new venture specializing in the creation of dual sided hair care products. Our first product is a double sided shampoo-conditioner bottle. The product is eco-friendly and saves money and space compared to buying separate bottles of shampoo and conditioner.

We are looking for a concept/prototype design in 3D. We have attached a product design sketch and photos describing the two sided bottle and twist caps.
We want a 12 oz. cylinder shaped bottle with a slight hour glass shaped design. The Shampoo portion of the bottle will be separated by the Conditioner portion of the bottle by a hidden plastic disc in the interior. The shampoo portion of the bottle will be a royal blue gradient - darker at the top and becoming lighter towards the middle. The conditioner portion of the bottle will be a grass green gradient - darker at the top and becoming lighter towards the middle. OR, WHATEVER COLOR and STYLE LOOKS BEST. The caps on both sides will twist. When you twist the cap, a small hole in the middle opens up to pour out the product (see pictures). We want a printer ready file to create a product prototype. Any additional ideas and label design are encouraged. We are open to any and all ideas re: the best way to bring the product to life.
Don't Wants:
Un-manufacturable designs
No childish look
Hard plastic (needs to be somewhat pliant)
  1. Autocad and Rhino3D. And the 3D file must be in STL, or stereolithographic file format, for printing


1st Winner
#23 shampoo bottle 3in1 by DaBu
I uploaded all three versions: sourcefiles and STL files.
Check the PDF drawings (sections) for a better understanding of the model. I also included the label in vector (Illustrator .ai) format.
2013-10-26 19:51:35
#1 shampoo bottle by robhare
shampoo bottle
2013-09-28 10:31:19
#2 shampoo bottle by robhare
shampoo bottle
2013-09-28 11:04:07
#3 Dual Blow Molded Bottle by Adam
2013-09-28 18:15:15
#4 shampoo bottle by Cata
2013-10-01 14:37:29
2013-10-02 15:27:36
#6 shampoo bottle by robhare
with a better lid arrangment
2013-10-04 07:39:37
#7 dual sided shampoo concept design by N.J.Brizuela
concept design first ideas.
2013-10-05 17:09:20
#8 shampoo bottle by Lucky
2013-10-05 21:19:40
#10 Shampoo & Conditioner 1 by Stelios
2013-10-07 02:16:33
#12 Shampoo & Conditioner 2 by Stelios
2013-10-11 00:29:43
#13 double-sided bottle by yrraf
I have aded STL files for my previous design.
2013-10-11 19:31:47
#14 Shampoo & Conditioner 3 by Stelios
2013-10-14 22:26:08
#15 Potential MFG Solution by Adam
2013-10-15 10:35:23
#16 Shampoo & Conditioner 4 by Stelios
2013-10-16 15:20:41
#17 Dual sided Shampoo/Conditioner bottle by Arun
2013-10-17 04:36:24
#18 Shampoo v1 by DaBu
Hey Kaelen,
I just submitted my design and I want to explain it a little bit. As you can see from the images there are two bottles assembled like lego pieces. The bottles are identical so only one mold is needed. I designed it taking in account that it should be possible to manufacture by blow molding. Another advantage is that the individual bottle can stand up by itself on it's base. The two bottles are held together by the sticking labels. The label surface is cilindrical so the label adheres well to the bottle (no need for thrmoelastic label).
The opening/closing mechanism is very basic: two eccentric holes that can be aligned by twisting the cap 180 degrees. I just thought of a better solution (that is less prone to leaking) and I can implement it in the final design but only if you're interested in the general looks of this design.
If you like it I can provide STEP/ IGES files as well as CATIA (v5r19) source files and the vector design of the label (AI, EPS)
2013-10-17 06:01:43
#19 Shampoo & Conditioner 5 by Stelios
2013-10-17 23:09:44
#20 combo pack s+c by vinya
1) shape of this model has more space for display
2) see through portions can be added on plastics or both plastic portions can be see through
3) both lids have conical shape inside for smooth transition of shampoo & every drop can be used
4) I'll work on look and feel of model farther if you like the design
2013-10-19 05:15:07
#21 shamditioner v2 by DaBu
This is the solution that I was thinking about. But as I was implementing it I realized that it is kind of a complicated design. The ideea was that the cap shoud only rotate 180 degrees and not translate along the bottle axis (the same as the first design).
Assembling: slide the stopper (yallow piece) into the bottle neck then snap the cap onto the bottle: there are edges that keeps the cap and bottle assembled.
How it works: as you twist the cap the two lateral pins of the stopper follow the inner thread of the cap and the stopper goes up and down. In the upper porition it blocks the central hole of the cap. There are "clicks" to assure the cap is aligned with the bottle.
Note: I think that the classic solution is the best way to go: twisting cap that will screw/ unscrew - closing/opening the hole at the top.
I will model this version too and I will upload all three versions so you can have them and test.
2013-10-24 07:00:34
#22 shampoo conditioner by vinya
2013-10-24 11:07:47
#24 Shampoo & Conditioner 6 by Stelios
2013-10-27 02:25:06
#25 Shampoo/Conditioner bottle design by Sergiu.Nasta
2013-10-28 00:31:51
#28 Shampoo/Conditioner bottle mechanisms... by Sergiu.Nasta
2013-10-28 17:51:16


Fri, 04 Oct 2013 04:29:12 +0000
Hi, do you accept CATIA cad file?



Sun, 29 Sep 2013 12:58:10 +0000
Thx Adam,

Based on what I have learned from you and others, the requirements will be somewhat different. We will create 2 bottles and connect them together at the middle, which addresses the internal disk and I will use a heat affixed label to address the color of the bottle.




Sun, 29 Sep 2013 06:11:25 +0000
Bottom line, even if design feasibility existed, packaging costs would be so high that market price would be out of reach. It would be like Willy Wonka trying to sell chocolate bars made in the section of the factory where the golden geese eggs were produced.



Sun, 29 Sep 2013 05:57:12 +0000
Additionally, even if the technology existed to blow mold a component with a dividing wall, the requirement for dual colors in a single or multiple cavity blow mold would be an additional challenge that is not currently available as a manufacturable possibility, let alone a "color fading" effect as what is being defined in the design scope.



Sun, 29 Sep 2013 05:34:11 +0000
As a long time designer in the plastics industry, you cannot manufacture what is being asked for. A blow molded bottle cannot have a "dividing" wall as what is being requested with current blow molding technologies (defined as a "dividing disc" in your design scope). While the idea is wonderful, it's not feasible with any design unless it's multiple blow molded bodies / injection molded components either mechanically joined together or otherwise, and at that point product packaging would out weigh marketplace competitiveness for a product of this type. If this was feasible, it would have been done long ago, and there would be numerous other packaging products on the market with similar design traits (e.g. laundry soap dispensers with detergent and fabric softener in a single packaging unit). Sorry to be the bearer of bad news.

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