Internally bonded paper block, means and methods for manufacturing thereof

Abstract

The present invention discloses methods of manufacturing an internally bonded paper block, an internally bonded paper block, a glue, optionally a composition or a mixture with an added value, moldable within a void in an unbonded block, and a pressing bench for manufacturing the same.

Description

INTERNALLY BONDED PAPER BLOCK, MEANS AND METHODS FORMANUFACTURING THEREOFCROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Pat. App. Nos. 63 / 621,030, filed January 15, 2024, all of which are incorporated by reference in their entirety.FIELD OF THE INVENTION

[0002] The present invention generally pertains to an internally bonded paper block, means and methods for its manufacture.BACKGROUND OF THE INVENTION

[0003] Historically, the art of paper book binding has evolved alongside the growth of literature and the dissemination of knowledge. Traditional bookbinding methods involved meticulous craftsmanship, with skilled artisans manually sewing and binding individual pages into cohesive volumes. While these artisanal techniques resulted in beautifully crafted books, they were labor- intensive, time-consuming, and often reserved for limited editions.

[0004] The advent of the printing press revolutionized the production of paper books, making them more accessible to a broader audience. However, early binding methods still relied heavily on handwork, limiting efficiency and scalability. Sewing, gluing, and stitching remained fundamental techniques, but there was a growing demand for innovations that could streamline the binding process without compromising the quality of the final product.

[0005] As technology progressed, the introduction of adhesive-based binding methods, such as perfect binding, became prevalent. Perfect binding involved applying adhesive to the spine, i.e., the edge, along the external perimeter of each of the gathered pages, creating an external strong bond but lacking the durability and longevity of traditional sewn bindings.

[0006] Additionally, the need for environmentally sustainable practices became increasingly pronounced in the context of bookbinding materials. Traditional adhesives often contained volatile organic compounds (VOCs) and other environmentally unfriendly components, prompting a search for greener alternatives.SUMMARY OF THE INVENTION

[0007] In this backdrop, the present invention aims to address the limitations of prior art by introducing an innovative means and method for internally-bonding paper-blocks. By incorporating perforations and strategically placed voids within the pages, the invention not only enhances the binding strength but also introduces opportunities for novel materials, adhesives, and production techniques. This forward-looking approach seeks to reconcile the rich traditions of bookbinding with the demands of modern mass production, environmental consciousness, and the quest for durable yet efficient binding methods.

[0008] Hence, one object of the invention is to disclose a method of manufacturing an internally bonded paper block, comprising steps of stacking n pages to an unbonded block , each of the pages is defined by an external page perimeter enclosing an inner page portion; the inner portion of each page In comprises an aperture at a defined location; the aperture is defined by aperture's perimeter enclosing a void; the void exceeds along the depth of the unbonded block; wherein the method further comprising step of molding a glue within the void in the unbonded block (20), thereby binding said pages together to form an internally bonded paper block.

[0009] Another object of the invention is to disclose a method of manufacturing an internally bonded paper block, comprising steps of stacking n pages to an unbonded block, each of the pages is defined by an external page perimeter enclosing an inner page portion; cutting the inner portion of the hereby stacked n pages to obtain at a defined location an aperture ; the aperture is defined by aperture's perimeterenclosing a void; the void exceeds along the depth of the unbonded block; the molding a glue within the void, thereby binding the pages together to form an internally bonded paper block.

[0010] Another object of the invention is to disclose an internally bonded paper block, comprises n pages stacked to an unbonded block, each of the pages is defined by an external page perimeterenclosing an inner page portion; the inner portion of each page In, comprises an aperture at a defined location; the aperture is defined by aperture's perimeterenclosing a void; the void exceeds along the depth of the unbonded block ; wherein the paper block further comprising a glue molded within the void exceed along the unbonded block, thereby binding the pages together to form an internally bonded paper block.[Oi l] Another object of the invention is to disclose, in an internally bonded paper block comprising n pages stacked to an unbonded block, each of the pages is defined by an external page perimeter enclosing an inner page portion; thte inner portion of each page In comprises an aperture at a defined location; the aperture is defined by aperture's perimeter enclosing a void, the void exceeds along the depth of the block; a glue moldable within the void in the unbonded block, configured for binding the pages together to form an internally bonded paper block.

[0012] Another object of the invention is to disclose a gluemoldable within a void in an unbonded block, wherein the glue is configured for binding an internally bonded paper block, the block comprises n stacked pages, each of the pages is defined by an external page perimeter enclosing an inner page portion; the inner portion of each page \n comprises an aperture at a defined location; the aperture is defined by aperture's perimeter enclosing a void; the void exceeds along the depth of the unbonded block .

[0013] Another object of the invention is to disclose a pressing bench for manufacturing an internally bonded paper block, the bench comprises a jig for accommodating a multi-page stack of n pages, each of the pages 1n is defined by an external page perimeter enclosing an inner page portion; a press for pressing said multi-page stack; a stack cutter for perforating at a defined location the inner portion of each of the hereby pressed multi-page stack so that an aperture is provided; the aperture is defined by an aperture's perimeter enclosing a void; the void exceeds along the depth of an unbonded block; and a glue dispenser, for molding a glue within the void in thr unbonded block, thereby binding the pages together to form an internally bonded paper block.

[0014] Another object of the invention is to disclose a pressing bench for manufacturing an internally bonded paper block, the bench comprises a jig for accommodating a multi-page stack of n pages, each of the pages n is defined by an external page perimeter enclosing an inner page portion; each of said pages 1 n comprises at a defined location an aperture; the aperture is defined by an aperture's perimeter enclosing a void ; the void exceeds along the depth of an unbonded block; a press for pressing the multi-page stack; and a glue dispenser, for molding a glue within the void in an unbonded block, thereby binding the pages together to form an internally bonded paper block.BRIEF DESCRIBTION OF THE FIGURES

[0015] The novel features believed characteristic of the invention are set forth in the appended claims. The invention itself, however, as well as a preferred mode of use, further objectives and advantages thereof, will be best understood by reference to the following detailed description of illustrative embodiments when read in conjunction with the accompanying drawings, wherein:

[0016] Fig. 1 schematically illustrates in an out-of-scale and non-limiting manners various views of an internally bonded paper block and modules thereof according to a set of embodiments of the invention;

[0017] Fig. 2 depict set of photos of a pressing bench providing methods and products according to yet other embodiments of the invention;

[0018] Fig. 3a-3g, (3a) schematically presents a method of manufacturing an internally bonded paper block and (3b-3g) present an internally bonded paper blocks having different size, shape and patterns, according to some embodiments of the present invention; and

[0019] Fig. 4 presents internally bonded paper block adhered to a refrigerator, according to some embodiments of the present invention.DETAILED DESCRIBTION OF THE OF THE PREFERRED EMBODIMENTS

[0020] The present invention discloses methods of manufacturing an internally bonded paper block, , a glue, optionally a composition or a mixture with an added value, moldable within a void in an unbonded block, and a pressing bench for manufacturing the same.

[0021] In a preferred embodiment of the patented invention, the following terms are expressly defined: The term "stack" as used herein denotes the arrangement of sheets or pages in a vertical alignment, forming a unified structure. The term " paper" encompasses a broad range of materials, including but not limited to wood and its derivatives, papyrus, canvas, metal, plastic, leather, cloth, etc. This term extends to materials coated or impregnated with chemical substances. Additionally, it includes any natural product suitable for stacking and binding, such as plant leaves. The material may vary in thickness, texture (smooth or grainy), and possess diverse characteristics. The term "pages" encompasses sheets of any conceivable shape or color, featuring diverse content possibilities. Pages or sheets within the context of this patent may be blank or contain elementssuch as text, colored, patterns, dates, etc. Importantly, these pages are characterized by a height significantly smaller in comparison to the overall area of the same sheet or page.

[0022] The context of the patented invention, the terms "glue" and "moldable glue" us used below are employed interchangeably to denote a heated liquid substance that undergoes solidification at room temperature. This glue encompasses a diverse range of materials. Non-limiting examples of glue include but are not limited to polymers, plastics, rubber, resins, viscous substances, polysaccharides (such as carboxymethyl cellulose and crosslinked-CMC combinations like citric acid-CMC), metals, proteins, epoxies, foams, adhesives tailored for bonding lignocellulosic materials (as detailed in US20050250900A1), waxes, metallocene-catalyzed polyolefins (as outlined in WO2016196262A1), bio-adhesives (as elucidated in US10428254B2), bio-composite materials (for instance, those featuring protein-rich non-wood fibrous biomass with at least 6% wt protein and a cross-linking agent, as disclosed in WO2018078391A2), weak adhesives (possibly polyvinyl acetate), hot melt adhesives (HMA, as described in US9375819B2), pressure-sensitive adhesives (e.g., acrylic, as delineated in IL217862A), and any possible combinations or mixtures thereof.

[0023] As employed herein, the phrase "solid at room temperature" signifies that the glue composition exhibits structural rigidity, rendering it substantially impervious to alterations in shape or volume. Put differently, the disclosed glue compositions are non-liquid and generally resist flow under ambient conditions. These compositions may manifest in the form of a gel or display gel-like properties.

[0024] A person skilled in the art would appreciate that the internally bonded paper block can be manufactured is different sizes, shapes, width or thickness. In some embodiments, the internally bonded paper block further comprises fragrance, color, glitter, or any combination thereof. In some embodiments, the internally bonded paper block is transparent. In some embodiments, the internally bonded paper block comprises a recycled paper.

[0025] In some embodiments, the sound produced when ripping a page from the internally bonded paper block of the invention is quieter compared to that of a paper block bonded with a different glue. A person skilled in the art would appreciate that several factors can affect the noise produced, such as the amount of force applied while tearing, the distance from the ears to the pages, the quantity of glue used, and the placement of the glue, or any combination of these factors.

[0026] In some embodiments, the glue is or comprise hot melt adhesive (HMA). In some embodiments, HMA is selected from the group consisting of ethylene vinyl acetate HMAs, polyolefin HMAs, pressure-sensitive HMAs, polyamide HMAs, polyurethane HMAs, polyester HMAs, or amorphous polyolefin HMAs, including any combination thereof

[0027] Hot melt adhesives (HMAs) used for binding papers are a type of thermoplastic adhesive that becomes molten when heated and solidifies upon cooling. These adhesives are commonly employed in various industries, including bookbinding and paper manufacturing. The choice of hot melt adhesive for binding papers depends on specific application requirements. Some common types of hot melt adhesives used for binding papers include: Ethylene Vinyl Acetate HMAs (EVAbased HMAs): EVA-based HMAs are widely used for paper binding applications. They offer good adhesion to paper substrates, flexibility, and ease of processing. Polyolefin HMAs: Polyolefin- based hot melt adhesives, such as metallocene-catalyzed polyolefins, are known for their excellent bonding performance on paper. They often provide good temperature resistance and aging properties. Pressure-Sensitive HMAs: Certain hot melt adhesives are designed to function as pressure-sensitive adhesives. These adhesives offer instant tackiness and can be applied at lower temperatures, making them suitable for rapid paper binding processes. Bookbinding HMAs: There are specialized hot melt adhesives formulated specifically for bookbinding applications. These adhesives are engineered to provide durable and long-lasting bonds suitable for the structural requirements of books. Polyamide (PA) HMAs: Polyamide-based hot melt adhesives are known for their high heat resistance and adhesion to various substrates, including paper. They are often used in applications where the bonded materials may be exposed to elevated temperatures. Amorphous Polyolefin (APO) HMAs: APO-based hot melt adhesives are characterized by good adhesion to paper and other porous substrates. They can be formulated to offer a balance between flexibility and strength.

[0028] One set of embodiments of the invention is to utilize one or a mixture of a few members of a group consisting of (a) Polyurethane-based HMAs: Polyurethane hot melt adhesives are known for their exceptional bonding strength and flexibility. They provide durable and long-lasting adhesion, making them suitable for high-quality bookbinding applications, (b) EVA-based HMAs: Ethylene Vinyl Acetate (EVA) hot melt adhesives are versatile and commonly used in bookbinding. They offer good adhesion to paper and other substrates, providing a reliable and cost-effective binding solution, (c) Polyester-based HMAs: Polyester hot melt adhesives are known for their high-temperature resistance and excellent bonding properties. They are suitable for applications where books may be exposed to elevated temperatures, (d) Polyamide-based HMAs: Polyamide hot melt adhesives offer a good balance of strength and flexibility. They are often used in bookbinding applications where a robust and durable bond is required, (e) Modified HMAs: Some bookbinding adhesives are modified with additives to enhance specific properties. These modifications may include additives to improve flexibility, tackiness, or adhesion to challenging substrates, (f) Pressure-Sensitive HMAs: Certain bookbinding applications may require hot melt adhesives with pressure-sensitive properties. These adhesives offer quick tackiness and are suitable for applications where instant adhesion is essential, (g) waxes, such as Beeswax: Beeswax is a natural wax produced by honeybees. It is a common choice for bookbinding because of its pliability, water-resistant properties, and ability to provide a smooth finish. Beeswax can be applied to book edges, thread, or as a protective coating. Paraffin Wax: Paraffin wax is a petroleum-derived wax that is often used in bookbinding for its low cost and ease of use. It provides a glossy finish and can be applied to paper edges to prevent fraying. Paraffin wax is also used in some bookbinding adhesives. Microcrystalline Wax: This type of wax is a blend of refined waxes with small, fine crystals. It is known for its stability, resistance to temperature changes, and ability to provide a durable finish. Microcrystalline wax is sometimes used for protecting leather book covers. Carnauba Wax: Carnauba wax is a natural wax obtained from the leaves of the Brazilian palm tree Copernicia prunifera. It is known for its hardness and high melting point. Carnauba wax is often used in combination with other waxes to create a harder and more durable finish. Shellac Wax: Shellac wax is a natural resin that is often used as a binder in conjunction with other waxes. It can provide a protective and glossy finish to paper or book covers. Japan Wax: Japan wax is a vegetable wax derived from the berries of certain sumac species. It is known for its low melting point and is used for polishing and waterproofing purposes in bookbinding.

[0029] In some embodiments, the glue is or comprises renewable source. In some embodiments, the glue is a molding material. In some embodiments, the glue is further for use in medical device, garments & accessories, packaging, electronic industries, toys, or consumer goods, signage, including any combination there.

[0030] In some embodiments, the glue comprises a magnet. In some embodiments, the glue is or comprises magnetic glue. As used herein, the term "magnetic glue" refers to a specialized adhesive material that exhibits magnetic properties or interacts with magnetic fields. It can eitherbe a glue embedded with magnetic particles or a compound designed to adhere to magnetic surfaces, where adhering is reversible applying a force greater than the magnet.

[0031] In some embodiments, the magnetic glue enables connecting the bonded paper blocks of the invention to a magnetic surface. A person skilled in the art would appreciate that the location of the magnetic particles or magnet in the glue will determine if the bonded paper blocks of the invention will bond vertically or parallel including any angle in between, to a magnetic surface. In some embodiments, the bonding is by at least one interface point.

[0032] The invention pertains to a patentable method for producing internally bonded paper blocks (100). In one embodiment, the method involves stacking n pages into an unbonded block (20), where each page (l i..ln) is defined by an external page perimeter (la) enclosing an inner page portion (lb), n is any integer equals or greater than 2. The inner portion of each page comprises an aperture (31a) at a defined location, enclosed by an aperture's perimeter (31a), forming a void (31b) that exceeds along the depth (1c) of the unbonded block (20). The innovation further includes the step of molding a glue (31 c) within this void, thereby binding the pages together to form the internally bonded paper block (100).

[0033] Another embodiment of the patented method involves a similar stacking process, but the inner portion of the pages is obtained by cutting at a defined location to create an aperture (31a). Subsequently, a glue (31c) is molded within the void (31b), binding the pages together to achieve the internally bonded paper block (100). It is well in the scope of the invention wherein the apertures are made by perforating the paper block in a process which involve creating either one or a series of small holes or punctures along a defined line or pattern within the inner portion of the paper. There are several optional methods to perforate a paper block (100), and the choice of method depends on the specific requirements of the application. Some practical ways paper blocks can be perforated are as follows: Die Cutting: In die cutting, a custom-shaped die with sharp blades is pressed into the paper block, creating perforations along the edges or within the paper. This method is precise and can produce intricate perforation patterns. Rotary Perforation: Rotary perforation involves the use of a cylindrical tool with sharp blades that rotates against the paper block. The blades create perforations as the paper passes through the rotary perforating machine. Laser Perforation: Laser technology is used to create precise perforations by vaporizing or burning away small sections of the paper. Laser perforation is often employed for intricate designs andpatterns. Scoring and Creasing: A scoring tool with a blunt edge can be used to create creases or indentations along the paper block. These creases weaken the paper along the desired lines, making it easier to tear or fold. This method is often used in combination with other techniques. Needle Perforation: Fine needles or pins can be used to create perforations by puncturing the paper block This method is suitable for simple perforation patterns and is commonly used in industrial settings. Wheel Perforation: A perforating wheel, which has small blades or pins spaced along its circumference, can be rolled over the paper block to create perforations. This method is efficient for creating straight-line perforations.

[0034] The invention also encompasses an internally bonded paper block (100) resulting from these methods. This paper block comprises n pages stacked into an unbonded block (20), where each page is defined by an external page perimeter (la) enclosing an inner page portion (lb). The inner portion of each page features an aperture (31a) at a defined location, enclosed by an aperture's perimeter (31a), forming a void (31b) that exceeds along the depth (1c) of the unbonded block (20). A glue (31c) is molded within this void, effectively binding the pages together.

[0035] Additionally, the invention covers a specific glue (31c) moldable within a void in an unbonded block (20). This glue is configured to bind an internally bonded paper block (100), wherein the block comprises n stacked pages, each defined by an external page perimeter (la) enclosing an inner page portion (lb). The inner portion of each page features an aperture (31a) at a defined location, enclosed by an aperture's perimeter (31a), forming a void (31b) that exceeds along the depth (1c) of the unbonded block (20).

[0036] The pith and merrow of the invention are that stacked pages are inter-bonded by glue located within one or more perforations within the inner portion of the page, and not merely by gluing a portion or a side along the external perimeter of the page, as known in the art.

[0037] Hence, reference is now made to Figure 1 schematically illustrating in out of scale manner a set of embodiments of the invention, namely a paper block with internal bonding (100) is created by stacking n pages onto an unbonded block (20). Each page has an outer boundary (la) enclosing an internal section (lb). Within this internal portion of each page (In), there is a specific aperture (31a). This aperture is defined by its perimeter (31a) and contains a void (31 b) that extends beyond the depth (1 c) of the unbonded block (20). The paper block also includes glue (31 c) shaped withinthis void, surpassing along the unbonded block (20). Consequently, the pages are securely bound together, forming an internally bonded paper block.

[0038] As used herein, a void portion (31b) in a perforated paper refers to a section where holes or perforations have been intentionally created, resulting in an area that lacks the paper material. This region is characterized by openings or gaps along the perforation lines, separating it from the rest of the paper sheet. The void portion serves here a specific purpose, allowing for the attachment of any page (li) to its neighbors laying in parallel in the stack, namely 1(1..i-1) and l(i+l ..n).

[0039] View 10 shows a few shapes of stackable pages, such as rectangular (e.g., A4 shaped paper, 1), polygonal (2); rounded, circular and curved shapes (3); highly symmetrical shapes (6) or non- symmetrical shapes (34) and any combinations and derivatives thereof.

[0040] View 11 shows three schemes 7a-7c. Scheme 7a illustrates a perforated corner of a rectangular page type 1, having an inner (intact, unperforated-) portion lb. The perforation here is rounded, characterizing teared arc 7. Somewhat similar is teared rectangular line 8. View 7b is a 3D zoom scheme of arced-corner 7, illustrating the thickness of page (namely page's depth along its Z axis). View 7c, again, is a 3D zoom scheme of arced-corner 7, coloring page's depth (1c), where the glue is to be molded, and further showing length (la along Y axis) and width (la along X axis) of the external perimeter of page In.

[0041] View 12 shows a few types of perforations within the inner portion of the paper, each of which is characterizing voids shaped as indicia with a meaning, such as symbols, codes with information, text, numbers, wordmarks (4), logo and trademarks (5). As an example, provided herein in a nonlimiting manner, a heart-shape logo 5d serves as a glue for stacking the paper block. An inner perforation has a radial shape 5a, in which glue 5d filles page's depth (1c), leaving an empty void 5d. The perimeter (5c) of this void shows a heart shape. Somewhat similar example is given later on as a rounded void 36 in a solidified glue.

[0042] View 20 schematically shows a multi-page stack of papers l(l)..l(n-l).. ln. It is in the scope of the invention wherein the stack comprises similar pages, of similar size, shape and dimensions, and similar type. Yet is also in the scope of the invention wherein the stack comprises pages of different size, shape and dimensions, and / or different type, e.g., different material, coating, color etc.

[0043] View 30 also shows a few types of perforations: Some of the perforations have simple, smooth or symmetrical shape, such as lighting 31 , in which its all circumference is located within the inner portion of the page lb; a triangular 32, some of its cuts are located internally and one is provided along page's outer circumference; and rounded shape 33, in which some of the glue is molded in connection with perforated arc 7, and some exceeds page perimeters. A set of three small perforations 34 show non-symmetrical non-smooth bomb-like cut, one is empty (34a), second is moldable with at least one first glue composition of a first biding efficiency physical chemical and esthetic properties (34b); and a third one, moldable with at least one second glue composition of a second (and different) biding efficiency, physical chemical and esthetic properties (34c).

[0044] View 40 schematically illustrates a page of unbonded or bonded block (20, 100, respectively) having a glue- filled perforation 31. The scheme also shows the perforation line 31a, the hole (the void volume within the page) 31b and the shape of the glue 31c when it fills the hole 31b.

[0045] View 100 shows a portion of the product, namely a paper block (100) with internal bonding; namely bonding provided within general perimeter of the intact page, before ere its perforation. Block 100 comprises n stacked, parallelly-layered sheet of paper 1(1)..(In). Here, all papers are of rectangular shape, characterized by external perimeter la (X and Y axes). Arc-shaped (7) perforation is cut within the inner portion lb of all stacked papers. Glue 31c is molded within void 31b. The glue effectively binds all pages in their section 1c, along Z axis of multi paper stack, immobilizing each of the pages in one internally bonded block (100). Here, the glue itself, when solidified, form a recess 36, where, a rounded bore or radial shape 35. This recess may remain intact, or otherwise further filled with or otherwise comprise other compositions, materials, clipping means, ornamental objects or reinforcements.

[0046] The invention extends to a pressing bench (200) designed for manufacturing an internally bonded paper block (100). The bench features a jig (201) for accommodating a multi-page stack of n pages, a press (202) for pressing the multi-page stack, a stack cutter (203) for perforating the inner portion of each pressed multi-page stack to create an aperture (31a) with an enclosed void (31b), and a glue dispenser (204) for molding a glue (31c) within the void, thereby binding the pages and forming the internally bonded paper block (100). Another variation of the pressing bench (210) omits the cutting step, as each page in the stack already possesses an aperture (31a) with an enclosed void (31b).

[0047] Fig. 2 shows a several photos, illustrating a pressing bench (200) providing methods and products as defined in this invention.

[0048] Figs. 3a schematically shows a method of manufacturing an internally bonded paper block. The method may comprise steps of (i) stacking pages to an unbonded block (301), each of the pages is defined by an external page perimeter enclosing an inner page portion; and (zz) cutting (302) the inner portion of the hereby stacked multi-pages to obtain at a defined location an aperture. The aperture is defined by aperture's perimeter enclosing a void. The void exceeds along the depth of said unbonded block; then molding (also in 302) a glue within the void, thereby binding said pages together to form an internally bonded paper block (303).

[0049] Fig. 3b-3g show some embodiments internally bonded paper blocks, the examples given here are few, and more and more different patterns are possible to be use.

[0050] It is in the scope of the invention to disclose a glue, moldable within a void in an unbonded block wherein the glue is configured for binding an internally bonded paper block, the block comprises stacked pages, each of the multi pages is defined by an external page perimeter enclosing an inner page portion; said inner portion) of each page comprises an aperture at a defined location. The aperture is defined by aperture's perimeter enclosing a void, void exceeds along the depth of said unbonded block. It is also in the scope of the invention further comprising active agents to provide the molded glue and the internally bonded paper block an added value. Hence, the molded matrix comprises or otherwise characterized by an added value, serving further purposes other than being just a glue. Hence for example, rubber can be added and eraser is obtained. Magnetic particles, compositions and objects with esthetic value can be added to the glue, such as colorful and reflective beads, semiprecious stones, dried flowers, smell agents, medical, biological or cosmetic active agents, such as lavender and rosemary oil useful as mosquito repellents, agents with attractive test (such as fruit test) can be added to the glue. Similarly, LEDs interconnected with small batteries can be used and be artistically and apphcably incorporate within the glue Pen or pencils holder can be formed by the molded glue, and so and so forth.

[0051] While the invention has been disclosed in this patent application by reference to the details of some preferred embodiments of the invention, it is to be understood that this disclosure is intended in an illustrative rather than in a limiting sense, as it is contemplated that modifications will readilyoccur to those skilled in the art within the spirit of the invention and the scope of the following claims.

[0052] Fig. 4 shows an exemplary internally bonded paper block, magnetically vertically bonded to a refrigerator, according to some embodiments of the present invention. Magnetic element 222 in glue 220 enables adhering of the internally bonded paper block 200 to a refrigerator 300, a magnetic surface, and by applying force greater than the magnetic forces, the internally bonded paper block is detached.EXAMPLE

[0053] An exemplary internally bonded paper block was tested to compare the noise generated when tearing pages against a padded bonded paper block. Ten subjects evaluated both types of bonded paper blocks, including the exemplary internally bonded paper block of the invention. The subjects rated the amount of noise produced during page removal on a scale of 1 to 5, wherein 5 refers to makes the highest noise and 1 lowest noise. The exemplary internally bonded paper block of the invention received an average of 2.60 ± 0.21 and the padded bonded paper block received an average of 4.70 ± 0.20. A T-test was conducted to compare the noise levels between the exemplary internally bonded paper block and the padded bonded paper block. The analysis yielded a p-value of 0.000002, indicating a statistically significant difference in noise levels between the two types of paper blocks.

Claims

CLAIMS1. A method of manufacturing an internally bonded paper block (100), comprising steps of stacking n pages to an unbonded block (20), each of said pages (l(ij..l«) is defined by an external page perimeter (la) enclosing an inner page portion (lb); said inner portion (lb) of each page 1n comprises an aperture (31a) at a defined location; said aperture is defined by aperture's perimeter (31a) enclosing a void (31b); said void (31b) exceeds along the depth (1c) of said unbonded block (20); wherein said method further comprising step of molding a glue (31c) within said void (31b) in said unbonded block (20), thereby binding said pages together to form an internally bonded paper block (100).

2. A method of manufacturing an internally bonded paper block (100), comprising steps of a. stacking n pages to an unbonded block (20), each of said pages (l(1)..1n) is defined by an external page perimeter (la) enclosing an inner page portion (lb); b. cutting said inner portion (lb) of said hereby stacked n pages to obtain at a defined location an aperture (31a); said aperture is defined by aperture's perimeter (31a) enclosing a void (31b); said void (31b) exceeds along the depth (1c) of said unbonded block (20); then c. molding a glue (31c) within said void (31b), thereby binding said pages together to form an internally bonded paper block (100).

3. The method of claim 1 or 2, wherein said glue comprises a hot melt adhesive (HMA).

4. The method of claim 3, wherein said is HMA is selected from the group consisting of ethylene vinyl acetate HMAs, polyolefin HMAs, pressure-sensitive HMAs, polyamide HMAs, polyurethane HMAs, polyester HMAs, or amorphous polyolefin HMAs, including any combination thereof.

5. The method of claim 3, wherein said glue further comprises a magnet, or magnetic particles.

6. An internally bonded paper block (100), comprises n pages stacked to an unbonded block (20), each of said pages is defined by an external page perimeter (la) enclosing an inner page portion (lb); said inner portion (lb) of each page In, comprises an aperture (31a) at a defined location; said aperture is defined by aperture's perimeter (31a) enclosing a void (31b); said void (31b) exceeds along the depth (1c) of said unbonded block (20); wherein said paper block further comprising a glue (31c) molded within said void exceed along saidunbonded block (20), thereby binding said pages together to form an internally bonded paper block.

7. An internally bonded paper block comprising n pages stacked to an unbonded block (20), each of said pages is defined by an external page perimeter (la) enclosing an inner page portion (lb); said inner portion (lb) of each page In comprises an aperture (31a) at a defined location; said aperture is defined by aperture's perimeter (31a) enclosing a void (31b), said void exceeds along the depth of the block; a glue (31c) moldable within said void in said unbonded block (20), configured for binding said pages together to form an internally bonded paper block.

8. The internally bonded paper block of claim 6 or 7, wherein said glue comprises a hot melt adhesive (HMA).

9. The internally bonded paper block of claim 8, wherein said is HMA is selected from the group consisting of ethylene vinyl acetate HMAs, polyolefin HMAs, pressure-sensitive HMAs, polyamide HMAs, polyurethane HMAs, polyester HMAs, or amorphous polyolefin HMAs, including any combination thereof.

10. The internally bonded paper block of claim 8, wherein said glue comprises a magnet or magnetic particles.

11. A glue (31c) moldable within a void in an unbonded block (20), wherein said glue is configured for binding an internally bonded paper block, said block comprises n stacked pages, each of said pages is defined by an external page perimeter (la) enclosing an inner page portion (lb); said inner portion (lb) of each page In comprises an aperture (31a) at a defined location; said aperture is defined by aperture's perimeter (31a) enclosing a void (31b); said void (31b) exceeds along the depth (1c) of said unbonded block (20).

12. The glue of claim 5, further comprising active agents to provide the molded glue and the internally bonded paper block an added value.

13. The glue of claim 5, further comprising a magnet or magnetic particles.

14. The glue of claim 5, wherein said glue comprises a hot melt adhesive (HMA).

15. The glue of claim 5, wherein said HMA is selected from the group consisting of ethylene vinyl acetate HMAs, polyolefin HMAs, pressure-sensitive HMAs, polyamide HMAs, polyurethane HMAs, polyester HMAs, or amorphous polyolefin HMAs, including any combination thereof.

16. A pressing bench (200) for manufacturing an internally bonded paper block (100), said bench (200) comprises a. a jig (201) for accommodating a multi-page stack of n pages, each of said pages (1n) is defined by an external page perimeter (la) enclosing an inner page portion (lb); b. a press (202) for pressing said multi-page stack; c. a stack cutter (203) for perforating at a defined location said inner portion (lb) of each of said hereby pressed multi-page stack so that an aperture (31a) is provided; said aperture is defined by an aperture's perimeter (31a) enclosing a void (31b); said void (31b) exceeds along the depth (1c) of an unbonded block (20); and d. a glue dispenser (204), for molding a glue (31c) within said void in said unbonded block (20), thereby binding said pages together to form an internally bonded paper block (100).

17. A pressing bench (210) for manufacturing an internally bonded paper block (100), said bench (200) comprises a. a jig (201) for accommodating a multi-page stack of n pages, each of said pages (1n) is defined by an external page perimeter (la) enclosing an inner page portion (lb); each of said pages (1n) comprises at a defined location an aperture (31a); said aperture is defined by an aperture's perimeter (31a) enclosing a void (31b); said void (31b) exceeds along the depth (1c) of an unbonded block (20); b. a press (202) for pressing said multi-page stack; and c. a glue dispenser (204), for molding a glue (31c) within said void in an unbonded block (20), thereby binding said pages together to form an internally bonded paper block (100).

18. The pressing bench of claim 16 or 17, wherein said glue comprises a hot melt adhesive (HMA).

19. The pressing bench of claim 18, wherein said is HMA is selected from the group consisting of ethylene vinyl acetate HMAs, polyolefin HMAs, pressure-sensitive HMAs, polyamide HMAs, polyurethane HMAs, polyester HMAs, or amorphous polyolefin HMAs, including any combination thereof.

20. The pressing bench of claim 18, wherein said glue comprises a magnet or magnetic particles.

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